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- 3 22", "fen_after": "rn4n1/1p5p/3bbkp1/3q4/8/8/PPP2PPP/6K1 w - - 0 23", "elapsed_s": 0.06136769999284297, "safety": null, "deliberation": null }, { "ply": 45, "actor": "Jev", "uci": "c2c3", "san": "c3", "fen_before": "rn4n1/1p5p/3bbkp1/3q4/8/8/PPP2PPP/6K1 w - - 0 23", "fen_after": "rn4n1/1p5p/3bbkp1/3q4/8/2P5/PP3PPP/6K1 b - - 0 23", "elapsed_s": 5.337371428031474, "safety": null, "deliberation": { "proposal_top": "g1f1", "reviews": [ { "uci": "g1f1", "proposal_probability": 0.22999999999999998, "loss_probability": 0.49, "mate_probability": 0.43, "quality": 1.33, "black_reply": "d5d1", "after_model_reply": { "fen": "rn4n1/1p5p/3bbkp1/8/8/8/PPP2PPP/3q1K2 w - - 2 24", "side_to_move": "white", "pieces": { "d1": "black queen", "f1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "d6": "black bishop", "e6": "black bishop", "f6": "black king", "g6": "black pawn", "b7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "g8": "black knight" }, "in_check": true, "terminal": true } }, { "uci": "g1h1", "proposal_probability": 0.12000000000000001, "loss_probability": 0.44, "mate_probability": 0.44, "quality": 1.18, "black_reply": "d5d1", "after_model_reply": { "fen": "rn4n1/1p5p/3bbkp1/8/8/8/PPP2PPP/3q3K w - - 2 24", "side_to_move": "white", "pieces": { "d1": "black queen", "h1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "d6": "black bishop", "e6": "black bishop", "f6": "black king", "g6": "black pawn", "b7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "g8": "black knight" }, "in_check": true, "terminal": true } }, { "uci": "c2c3", "proposal_probability": 0.09000000000000001, "loss_probability": 0.4, "mate_probability": 0.28, "quality": 1.45, "black_reply": "d5d1", "after_model_reply": { "fen": "rn4n1/1p5p/3bbkp1/8/8/2P5/PP3PPP/3q2K1 w - - 1 24", "side_to_move": "white", "pieces": { "d1": "black queen", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "c3": "white pawn", "d6": "black bishop", "e6": "black bishop", "f6": "black king", "g6": "black pawn", "b7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "g8": "black knight" }, "in_check": true, "terminal": true } } ], "offered": [ "g1f1", "g1h1", "c2c3" ], "selected": "c2c3", "changed": true, "retried": false } }, { "ply": 46, "actor": "Локальный бот", "uci": "d5d1", "san": "Qd1#", "fen_before": "rn4n1/1p5p/3bbkp1/3q4/8/2P5/PP3PPP/6K1 b - - 0 23", "fen_after": "rn4n1/1p5p/3bbkp1/8/8/2P5/PP3PPP/3q2K1 w - - 1 24", "elapsed_s": 0.31910257902927697, "safety": null, "deliberation": null } ], "requests": [ { "stage": "proposal", "candidate": null, "request": { "model": "typesafe/jev-1.13", "state": { "fen": "rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1", "board": "8 r n b q k b n r\n7 p p p p p p p p\n6 . . . . . . . .\n5 . . . . . . . .\n4 . . . . . . . .\n3 . . . . . . . .\n2 P P P P P P P P\n1 R N B Q K B N R\n a b c d e f g h", "legend": "Uppercase = White, lowercase = Black. P pawn, N knight, B bishop, R rook, Q queen, K king; . empty.", "you_play": "White", "in_check": false, "history_uci": [], "history_san": [], "pieces": { "white": { "a1": "rook", "b1": "knight", "c1": "bishop", "d1": "queen", "e1": "king", "f1": "bishop", "g1": "knight", "h1": "rook", "a2": "pawn", "b2": "pawn", "c2": "pawn", "d2": "pawn", "e2": "pawn", "f2": "pawn", "g2": "pawn", "h2": "pawn" }, "black": { "a7": "pawn", "b7": "pawn", "c7": "pawn", "d7": "pawn", "e7": "pawn", "f7": "pawn", "g7": "pawn", "h7": "pawn", "a8": "rook", "b8": "knight", "c8": "bishop", "d8": "queen", "e8": "king", "f8": "bishop", "g8": "knight", "h8": "rook" } } }, "questions": { "move": { "type": "choice", "instructions": "Choose one legal White move. You alone evaluate the moves; their list is unranked. Use the explicit piece locations to check the destination and any lines opened by moving. First consider whether Black can capture your queen, rook or minor pieces after the move. Count both sides of an exchange: pawn=1, knight/bishop=3, rook=5, queen=9. Prefer keeping material unless you can establish a concrete profitable continuation. Giving check is NOT compensation for losing a piece. When no tactic works, develop or improve a safe piece. Protect your king and aim for checkmate. Read the history to avoid purposeless repeats when ahead; a draw can be useful when losing. Return one offered UCI move.", "criteria": { "a2a3": "pawn a2 to a3; SAN a3", "a2a4": "pawn a2 to a4; SAN a4", "b1a3": "knight b1 to a3; SAN Na3", "b1c3": "knight b1 to c3; SAN Nc3", "b2b3": "pawn b2 to b3; SAN b3", "b2b4": "pawn b2 to b4; SAN b4", "c2c3": "pawn c2 to c3; SAN c3", "c2c4": "pawn c2 to c4; SAN c4", "d2d3": "pawn d2 to d3; SAN d3", "d2d4": "pawn d2 to d4; SAN d4", "e2e3": "pawn e2 to e3; SAN e3", "e2e4": "pawn e2 to e4; SAN e4", "f2f3": "pawn f2 to f3; SAN f3", "f2f4": "pawn f2 to f4; SAN f4", "g1f3": "knight g1 to f3; SAN Nf3", "g1h3": "knight g1 to h3; SAN Nh3", "g2g3": "pawn g2 to g3; SAN g3", "g2g4": "pawn g2 to g4; SAN g4", "h2h3": "pawn h2 to h3; SAN h3", "h2h4": "pawn h2 to h4; SAN h4" } } } }, "safety": null, "turn": 1, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "move": { "type": "choice", "choice": "e2e4", "probabilities": { "h2h4": 0, "a2a3": 0, "c2c4": 0, "e2e3": 0.01, "g1f3": 0.13, "b2b3": 0, "d2d3": 0.01, "b2b4": 0, "b1c3": 0.09, "g1h3": 0, "b1a3": 0, "f2f3": 0, "c2c3": 0.01, "h2h3": 0, "g2g3": 0, "g2g4": 0, "e2e4": 0.7, "d2d4": 0.05, "f2f4": 0, "a2a4": 0 }, "confidence": 0.67 } }, "usage": { "input_tokens": 1437, "output_tokens": 220, "cost": 6.0354e-05 }, "provider": "TypeSafe" }, "elapsed_s": 1.6114406720735133 }, { "stage": "review", "candidate": "e2e4", "request": { "model": "typesafe/jev-1.13", "state": { "before": { "fen": "rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1", "side_to_move": "white", "pieces": { "a1": "white rook", "b1": "white knight", "c1": "white bishop", "d1": "white queen", "e1": "white king", "f1": "white bishop", "g1": "white knight", "h1": "white rook", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "d2": "white pawn", "e2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "a7": "black pawn", "b7": "black pawn", "c7": "black pawn", "d7": "black pawn", "e7": "black pawn", "f7": "black pawn", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "c8": "black bishop", "d8": "black queen", "e8": "black king", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false }, "candidate": { "uci": "e2e4", "san": "e4" }, "after": { "fen": "rnbqkbnr/pppppppp/8/8/4P3/8/PPPP1PPP/RNBQKBNR b KQkq - 0 1", "side_to_move": "black", "pieces": { "a1": "white rook", "b1": "white knight", "c1": "white bishop", "d1": "white queen", "e1": "white king", "f1": "white bishop", "g1": "white knight", "h1": "white rook", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "d2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "e4": "white pawn", "a7": "black pawn", "b7": "black pawn", "c7": "black pawn", "d7": "black pawn", "e7": "black pawn", "f7": "black pawn", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "c8": "black bishop", "d8": "black queen", "e8": "black king", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false } }, "questions": { "loses_material": { "type": "noul", "instructions": "After the candidate White move, can Black force a net material gain soon? Check legal captures, recaptures and attacks on ALL White pieces. A fair exchange is not a loss; merely being attacked is not enough. Assess from White perspective." }, "allows_mate": { "type": "noul", "instructions": "Can Black checkmate White on its very next move in the after position?" }, "quality": { "type": "score", "instructions": "Evaluate the candidate for White after Black responds strongly. Do not reward a check that sacrifices material without compensation.", "criteria": [ "Losing blunder", "Dubious or wasteful", "Playable", "Good", "Winning or excellent" ] }, "black_reply": { "type": "choice", "instructions": "Play Black in the AFTER position. Choose the strongest reply to punish White, especially hanging pieces or checkmate. Every offered move is legal.", "criteria": { "a7a5": "a5", "a7a6": "a6", "b7b5": "b5", "b7b6": "b6", "b8a6": "Na6", "b8c6": "Nc6", "c7c5": "c5", "c7c6": "c6", "d7d5": "d5", "d7d6": "d6", "e7e5": "e5", "e7e6": "e6", "f7f5": "f5", "f7f6": "f6", "g7g5": "g5", "g7g6": "g6", "g8f6": "Nf6", "g8h6": "Nh6", "h7h5": "h5", "h7h6": "h6" } } } }, "safety": null, "turn": 1, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "loses_material": { "type": "noul", "noul": 0.09 }, "allows_mate": { "type": "noul", "noul": 0.03 }, "quality": { "type": "score", "score": 2.5, "legend": { "0": "Losing blunder", "1": "Dubious or wasteful", "2": "Playable", "3": "Good", "4": "Winning or excellent" }, "probabilities": { "0": 0.02, "1": 0.05, "2": 0.38, "3": 0.51, "4": 0.04 }, "confidence": 0.51 }, "black_reply": { "type": "choice", "choice": "d7d5", "probabilities": { "d7d6": 0, "h7h5": 0, "h7h6": 0, "a7a5": 0, "c7c5": 0.1, "b7b6": 0, "a7a6": 0, "g8f6": 0.16, "c7c6": 0, "b8c6": 0.03, "e7e5": 0.25, "b7b5": 0.01, "f7f5": 0.01, "g7g6": 0, "g8h6": 0, "f7f6": 0.01, "d7d5": 0.41000000000000003, "e7e6": 0.01, "b8a6": 0.01, "g7g5": 0 }, "confidence": 0.37 } }, "usage": { "input_tokens": 1619, "output_tokens": 270, "cost": 6.7998e-05 }, "provider": "TypeSafe" }, "elapsed_s": 1.4071984190959483 }, { "stage": "review", "candidate": "g1f3", "request": { "model": "typesafe/jev-1.13", "state": { "before": { "fen": "rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1", "side_to_move": "white", "pieces": { "a1": "white rook", "b1": "white knight", "c1": "white bishop", "d1": "white queen", "e1": "white king", "f1": "white bishop", "g1": "white knight", "h1": "white rook", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "d2": "white pawn", "e2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "a7": "black pawn", "b7": "black pawn", "c7": "black pawn", "d7": "black pawn", "e7": "black pawn", "f7": "black pawn", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "c8": "black bishop", "d8": "black queen", "e8": "black king", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false }, "candidate": { "uci": "g1f3", "san": "Nf3" }, "after": { "fen": "rnbqkbnr/pppppppp/8/8/8/5N2/PPPPPPPP/RNBQKB1R b KQkq - 1 1", "side_to_move": "black", "pieces": { "a1": "white rook", "b1": "white knight", "c1": "white bishop", "d1": "white queen", "e1": "white king", "f1": "white bishop", "h1": "white rook", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "d2": "white pawn", "e2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "f3": "white knight", "a7": "black pawn", "b7": "black pawn", "c7": "black pawn", "d7": "black pawn", "e7": "black pawn", "f7": "black pawn", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "c8": "black bishop", "d8": "black queen", "e8": "black king", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false } }, "questions": { "loses_material": { "type": "noul", "instructions": "After the candidate White move, can Black force a net material gain soon? Check legal captures, recaptures and attacks on ALL White pieces. A fair exchange is not a loss; merely being attacked is not enough. Assess from White perspective." }, "allows_mate": { "type": "noul", "instructions": "Can Black checkmate White on its very next move in the after position?" }, "quality": { "type": "score", "instructions": "Evaluate the candidate for White after Black responds strongly. Do not reward a check that sacrifices material without compensation.", "criteria": [ "Losing blunder", "Dubious or wasteful", "Playable", "Good", "Winning or excellent" ] }, "black_reply": { "type": "choice", "instructions": "Play Black in the AFTER position. Choose the strongest reply to punish White, especially hanging pieces or checkmate. Every offered move is legal.", "criteria": { "a7a5": "a5", "a7a6": "a6", "b7b5": "b5", "b7b6": "b6", "b8a6": "Na6", "b8c6": "Nc6", "c7c5": "c5", "c7c6": "c6", "d7d5": "d5", "d7d6": "d6", "e7e5": "e5", "e7e6": "e6", "f7f5": "f5", "f7f6": "f6", "g7g5": "g5", "g7g6": "g6", "g8f6": "Nf6", "g8h6": "Nh6", "h7h5": "h5", "h7h6": "h6" } } } }, "safety": null, "turn": 1, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "loses_material": { "type": "noul", "noul": 0.07 }, "allows_mate": { "type": "noul", "noul": 0.03 }, "quality": { "type": "score", "score": 2.65, "legend": { "0": "Losing blunder", "1": "Dubious or wasteful", "2": "Playable", "3": "Good", "4": "Winning or excellent" }, "probabilities": { "0": 0.01, "1": 0.01, "2": 0.35, "3": 0.59, "4": 0.04 }, "confidence": 0.64 }, "black_reply": { "type": "choice", "choice": "g8f6", "probabilities": { "c7c5": 0.02, "g7g5": 0.01, "g8h6": 0.01, "h7h5": 0, "e7e6": 0.01, "c7c6": 0, "d7d5": 0.23, "g7g6": 0, "d7d6": 0, "e7e5": 0.24000000000000002, "h7h6": 0, "f7f5": 0.01, "b7b6": 0, "f7f6": 0.01, "b8c6": 0.07, "a7a6": 0, "a7a5": 0, "g8f6": 0.38, "b7b5": 0, "b8a6": 0.01 }, "confidence": 0.34 } }, "usage": { "input_tokens": 1620, "output_tokens": 270, "cost": 6.804e-05 }, "provider": "TypeSafe" }, "elapsed_s": 1.7252467359649017 }, { "stage": "review", "candidate": "b1c3", "request": { "model": "typesafe/jev-1.13", "state": { "before": { "fen": "rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1", "side_to_move": "white", "pieces": { "a1": "white rook", "b1": "white knight", "c1": "white bishop", "d1": "white queen", "e1": "white king", "f1": "white bishop", "g1": "white knight", "h1": "white rook", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "d2": "white pawn", "e2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "a7": "black pawn", "b7": "black pawn", "c7": "black pawn", "d7": "black pawn", "e7": "black pawn", "f7": "black pawn", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "c8": "black bishop", "d8": "black queen", "e8": "black king", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false }, "candidate": { "uci": "b1c3", "san": "Nc3" }, "after": { "fen": "rnbqkbnr/pppppppp/8/8/8/2N5/PPPPPPPP/R1BQKBNR b KQkq - 1 1", "side_to_move": "black", "pieces": { "a1": "white rook", "c1": "white bishop", "d1": "white queen", "e1": "white king", "f1": "white bishop", "g1": "white knight", "h1": "white rook", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "d2": "white pawn", "e2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "c3": "white knight", "a7": "black pawn", "b7": "black pawn", "c7": "black pawn", "d7": "black pawn", "e7": "black pawn", "f7": "black pawn", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "c8": "black bishop", "d8": "black queen", "e8": "black king", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false } }, "questions": { "loses_material": { "type": "noul", "instructions": "After the candidate White move, can Black force a net material gain soon? Check legal captures, recaptures and attacks on ALL White pieces. A fair exchange is not a loss; merely being attacked is not enough. Assess from White perspective." }, "allows_mate": { "type": "noul", "instructions": "Can Black checkmate White on its very next move in the after position?" }, "quality": { "type": "score", "instructions": "Evaluate the candidate for White after Black responds strongly. Do not reward a check that sacrifices material without compensation.", "criteria": [ "Losing blunder", "Dubious or wasteful", "Playable", "Good", "Winning or excellent" ] }, "black_reply": { "type": "choice", "instructions": "Play Black in the AFTER position. Choose the strongest reply to punish White, especially hanging pieces or checkmate. Every offered move is legal.", "criteria": { "a7a5": "a5", "a7a6": "a6", "b7b5": "b5", "b7b6": "b6", "b8a6": "Na6", "b8c6": "Nc6", "c7c5": "c5", "c7c6": "c6", "d7d5": "d5", "d7d6": "d6", "e7e5": "e5", "e7e6": "e6", "f7f5": "f5", "f7f6": "f6", "g7g5": "g5", "g7g6": "g6", "g8f6": "Nf6", "g8h6": "Nh6", "h7h5": "h5", "h7h6": "h6" } } } }, "safety": null, "turn": 1, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "loses_material": { "type": "noul", "noul": 0.08 }, "allows_mate": { "type": "noul", "noul": 0.03 }, "quality": { "type": "score", "score": 2.47, "legend": { "0": "Losing blunder", "1": "Dubious or wasteful", "2": "Playable", "3": "Good", "4": "Winning or excellent" }, "probabilities": { "0": 0.01, "1": 0.03, "2": 0.45, "3": 0.5, "4": 0.01 }, "confidence": 0.54 }, "black_reply": { "type": "choice", "choice": "b8c6", "probabilities": { "h7h6": 0, "g7g5": 0, "c7c6": 0.02, "b8c6": 0.25, "c7c5": 0.07, "d7d6": 0, "f7f5": 0, "g7g6": 0, "b8a6": 0.03, "f7f6": 0, "g8f6": 0.23, "h7h5": 0, "d7d5": 0.21, "a7a5": 0, "e7e5": 0.15, "b7b6": 0.01, "e7e6": 0.01, "g8h6": 0, "a7a6": 0, "b7b5": 0.02 }, "confidence": 0.2 } }, "usage": { "input_tokens": 1619, "output_tokens": 270, "cost": 6.7998e-05 }, "provider": "TypeSafe" }, "elapsed_s": 2.050367261050269 }, { "stage": "selection", "candidate": null, "request": { "model": "typesafe/jev-1.13", "state": { "position": { "fen": "rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1", "board": "8 r n b q k b n r\n7 p p p p p p p p\n6 . . . . . . . .\n5 . . . . . . . .\n4 . . . . . . . .\n3 . . . . . . . .\n2 P P P P P P P P\n1 R N B Q K B N R\n a b c d e f g h", "legend": "Uppercase = White, lowercase = Black. P pawn, N knight, B bishop, R rook, Q queen, K king; . empty.", "you_play": "White", "in_check": false, "history_uci": [], "history_san": [], "pieces": { "white": { "a1": "rook", "b1": "knight", "c1": "bishop", "d1": "queen", "e1": "king", "f1": "bishop", "g1": "knight", "h1": "rook", "a2": "pawn", "b2": "pawn", "c2": "pawn", "d2": "pawn", "e2": "pawn", "f2": "pawn", "g2": "pawn", "h2": "pawn" }, "black": { "a7": "pawn", "b7": "pawn", "c7": "pawn", "d7": "pawn", "e7": "pawn", "f7": "pawn", "g7": "pawn", "h7": "pawn", "a8": "rook", "b8": "knight", "c8": "bishop", "d8": "queen", "e8": "king", "f8": "bishop", "g8": "knight", "h8": "rook" } } }, "reviews": [ { "uci": "e2e4", "proposal_probability": 0.7, "loss_probability": 0.09, "mate_probability": 0.03, "quality": 2.5, "black_reply": "d7d5", "after_model_reply": { "fen": "rnbqkbnr/ppp1pppp/8/3p4/4P3/8/PPPP1PPP/RNBQKBNR w KQkq - 0 2", "side_to_move": "white", "pieces": { "a1": "white rook", "b1": "white knight", "c1": "white bishop", "d1": "white queen", "e1": "white king", "f1": "white bishop", "g1": "white knight", "h1": "white rook", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "d2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "e4": "white pawn", "d5": "black pawn", "a7": "black pawn", "b7": "black pawn", "c7": "black pawn", "e7": "black pawn", "f7": "black pawn", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "c8": "black bishop", "d8": "black queen", "e8": "black king", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false } }, { "uci": "g1f3", "proposal_probability": 0.13, "loss_probability": 0.07, "mate_probability": 0.03, "quality": 2.65, "black_reply": "g8f6", "after_model_reply": { "fen": "rnbqkb1r/pppppppp/5n2/8/8/5N2/PPPPPPPP/RNBQKB1R w KQkq - 2 2", "side_to_move": "white", "pieces": { "a1": "white rook", "b1": "white knight", "c1": "white bishop", "d1": "white queen", "e1": "white king", "f1": "white bishop", "h1": "white rook", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "d2": "white pawn", "e2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "f3": "white knight", "f6": "black knight", "a7": "black pawn", "b7": "black pawn", "c7": "black pawn", "d7": "black pawn", "e7": "black pawn", "f7": "black pawn", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "c8": "black bishop", "d8": "black queen", "e8": "black king", "f8": "black bishop", "h8": "black rook" }, "in_check": false, "terminal": false } }, { "uci": "b1c3", "proposal_probability": 0.09, "loss_probability": 0.08, "mate_probability": 0.03, "quality": 2.47, "black_reply": "b8c6", "after_model_reply": { "fen": "r1bqkbnr/pppppppp/2n5/8/8/2N5/PPPPPPPP/R1BQKBNR w KQkq - 2 2", "side_to_move": "white", "pieces": { "a1": "white rook", "c1": "white bishop", "d1": "white queen", "e1": "white king", "f1": "white bishop", "g1": "white knight", "h1": "white rook", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "d2": "white pawn", "e2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "c3": "white knight", "c6": "black knight", "a7": "black pawn", "b7": "black pawn", "c7": "black pawn", "d7": "black pawn", "e7": "black pawn", "f7": "black pawn", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "c8": "black bishop", "d8": "black queen", "e8": "black king", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false } } ], "warning": "Reviews and Black replies are fallible predictions of the same Jev model, not verified engine evaluations." }, "questions": { "move": { "type": "choice", "instructions": "Choose the best White move from the reviewed candidates. Independently check each hypothetical Black reply, captures and recaptures. Prefer avoiding material loss, then useful progress and king safety. Reviews may be wrong. A high proposal probability does not prove a good move.", "criteria": { "e2e4": "pawn e2 to e4; SAN e4", "g1f3": "knight g1 to f3; SAN Nf3", "b1c3": "knight b1 to c3; SAN Nc3" } } } }, "safety": null, "turn": 1, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "move": { "type": "choice", "choice": "g1f3", "probabilities": { "g1f3": 0.47, "b1c3": 0.09, "e2e4": 0.44 }, "confidence": 0.2 } }, "usage": { "input_tokens": 2397, "output_tokens": 50, "cost": 0.000100674 }, "provider": "TypeSafe" }, "elapsed_s": 1.366547217941843 }, { "stage": "proposal", "candidate": null, "request": { "model": "typesafe/jev-1.13", "state": { "fen": "rnbqkbnr/1ppppppp/8/p7/8/5N2/PPPPPPPP/RNBQKB1R w KQkq - 0 2", "board": "8 r n b q k b n r\n7 . p p p p p p p\n6 . . . . . . . .\n5 p . . . . . . .\n4 . . . . . . . .\n3 . . . . . N . .\n2 P P P P P P P P\n1 R N B Q K B . R\n a b c d e f g h", "legend": "Uppercase = White, lowercase = Black. P pawn, N knight, B bishop, R rook, Q queen, K king; . empty.", "you_play": "White", "in_check": false, "history_uci": [ "g1f3", "a7a5" ], "history_san": [ "Nf3", "a5" ], "pieces": { "white": { "a1": "rook", "b1": "knight", "c1": "bishop", "d1": "queen", "e1": "king", "f1": "bishop", "h1": "rook", "a2": "pawn", "b2": "pawn", "c2": "pawn", "d2": "pawn", "e2": "pawn", "f2": "pawn", "g2": "pawn", "h2": "pawn", "f3": "knight" }, "black": { "a5": "pawn", "b7": "pawn", "c7": "pawn", "d7": "pawn", "e7": "pawn", "f7": "pawn", "g7": "pawn", "h7": "pawn", "a8": "rook", "b8": "knight", "c8": "bishop", "d8": "queen", "e8": "king", "f8": "bishop", "g8": "knight", "h8": "rook" } } }, "questions": { "move": { "type": "choice", "instructions": "Choose one legal White move. You alone evaluate the moves; their list is unranked. Use the explicit piece locations to check the destination and any lines opened by moving. First consider whether Black can capture your queen, rook or minor pieces after the move. Count both sides of an exchange: pawn=1, knight/bishop=3, rook=5, queen=9. Prefer keeping material unless you can establish a concrete profitable continuation. Giving check is NOT compensation for losing a piece. When no tactic works, develop or improve a safe piece. Protect your king and aim for checkmate. Read the history to avoid purposeless repeats when ahead; a draw can be useful when losing. Return one offered UCI move.", "criteria": { "a2a3": "pawn a2 to a3; SAN a3", "a2a4": "pawn a2 to a4; SAN a4", "b1a3": "knight b1 to a3; SAN Na3", "b1c3": "knight b1 to c3; SAN Nc3", "b2b3": "pawn b2 to b3; SAN b3", "b2b4": "pawn b2 to b4; SAN b4", "c2c3": "pawn c2 to c3; SAN c3", "c2c4": "pawn c2 to c4; SAN c4", "d2d3": "pawn d2 to d3; SAN d3", "d2d4": "pawn d2 to d4; SAN d4", "e2e3": "pawn e2 to e3; SAN e3", "e2e4": "pawn e2 to e4; SAN e4", "f3d4": "knight f3 to d4; SAN Nd4", "f3e5": "knight f3 to e5; SAN Ne5", "f3g1": "knight f3 to g1; SAN Ng1", "f3g5": "knight f3 to g5; SAN Ng5", "f3h4": "knight f3 to h4; SAN Nh4", "g2g3": "pawn g2 to g3; SAN g3", "g2g4": "pawn g2 to g4; SAN g4", "h1g1": "rook h1 to g1; SAN Rg1", "h2h3": "pawn h2 to h3; SAN h3", "h2h4": "pawn h2 to h4; SAN h4" } } } }, "safety": null, "turn": 2, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "move": { "type": "choice", "choice": "b1c3", "probabilities": { "c2c3": 0.01, "f3h4": 0, "h2h3": 0, "g2g4": 0, "f3e5": 0.01, "a2a3": 0.04, "g2g3": 0, "e2e3": 0.03, "b2b4": 0.01, "f3d4": 0.02, "b2b3": 0, "h2h4": 0, "d2d4": 0.14, "b1a3": 0.01, "c2c4": 0.03, "h1g1": 0, "f3g1": 0, "e2e4": 0.18000000000000002, "b1c3": 0.46, "a2a4": 0.04, "f3g5": 0.01, "d2d3": 0.01 }, "confidence": 0.42 } }, "usage": { "input_tokens": 1515, "output_tokens": 240, "cost": 6.363e-05 }, "provider": "TypeSafe" }, "elapsed_s": 1.694262070930563 }, { "stage": "review", "candidate": "b1c3", "request": { "model": "typesafe/jev-1.13", "state": { "before": { "fen": "rnbqkbnr/1ppppppp/8/p7/8/5N2/PPPPPPPP/RNBQKB1R w KQkq - 0 2", "side_to_move": "white", "pieces": { "a1": "white rook", "b1": "white knight", "c1": "white bishop", "d1": "white queen", "e1": "white king", "f1": "white bishop", "h1": "white rook", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "d2": "white pawn", "e2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "f3": "white knight", "a5": "black pawn", "b7": "black pawn", "c7": "black pawn", "d7": "black pawn", "e7": "black pawn", "f7": "black pawn", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "c8": "black bishop", "d8": "black queen", "e8": "black king", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false }, "candidate": { "uci": "b1c3", "san": "Nc3" }, "after": { "fen": "rnbqkbnr/1ppppppp/8/p7/8/2N2N2/PPPPPPPP/R1BQKB1R b KQkq - 1 2", "side_to_move": "black", "pieces": { "a1": "white rook", "c1": "white bishop", "d1": "white queen", "e1": "white king", "f1": "white bishop", "h1": "white rook", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "d2": "white pawn", "e2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "c3": "white knight", "f3": "white knight", "a5": "black pawn", "b7": "black pawn", "c7": "black pawn", "d7": "black pawn", "e7": "black pawn", "f7": "black pawn", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "c8": "black bishop", "d8": "black queen", "e8": "black king", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false } }, "questions": { "loses_material": { "type": "noul", "instructions": "After the candidate White move, can Black force a net material gain soon? Check legal captures, recaptures and attacks on ALL White pieces. A fair exchange is not a loss; merely being attacked is not enough. Assess from White perspective." }, "allows_mate": { "type": "noul", "instructions": "Can Black checkmate White on its very next move in the after position?" }, "quality": { "type": "score", "instructions": "Evaluate the candidate for White after Black responds strongly. Do not reward a check that sacrifices material without compensation.", "criteria": [ "Losing blunder", "Dubious or wasteful", "Playable", "Good", "Winning or excellent" ] }, "black_reply": { "type": "choice", "instructions": "Play Black in the AFTER position. Choose the strongest reply to punish White, especially hanging pieces or checkmate. Every offered move is legal.", "criteria": { "a5a4": "a4", "a8a6": "Ra6", "a8a7": "Ra7", "b7b5": "b5", "b7b6": "b6", "b8a6": "Na6", "b8c6": "Nc6", "c7c5": "c5", "c7c6": "c6", "d7d5": "d5", "d7d6": "d6", "e7e5": "e5", "e7e6": "e6", "f7f5": "f5", "f7f6": "f6", "g7g5": "g5", "g7g6": "g6", "g8f6": "Nf6", "g8h6": "Nh6", "h7h5": "h5", "h7h6": "h6" } } } }, "safety": null, "turn": 2, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "loses_material": { "type": "noul", "noul": 0.09 }, "allows_mate": { "type": "noul", "noul": 0.05 }, "quality": { "type": "score", "score": 2.54, "legend": { "0": "Losing blunder", "1": "Dubious or wasteful", "2": "Playable", "3": "Good", "4": "Winning or excellent" }, "probabilities": { "0": 0.03, "1": 0.03, "2": 0.34, "3": 0.58, "4": 0.02 }, "confidence": 0.58 }, "black_reply": { "type": "choice", "choice": "d7d5", "probabilities": { "b7b5": 0.03, "e7e5": 0.19, "h7h6": 0, "b8c6": 0.16, "g7g5": 0.01, "a8a7": 0, "a8a6": 0.01, "g8f6": 0.15, "b7b6": 0, "c7c6": 0.01, "f7f6": 0, "g7g6": 0, "c7c5": 0.07, "d7d6": 0.01, "a5a4": 0.07, "d7d5": 0.24000000000000002, "g8h6": 0.01, "f7f5": 0, "e7e6": 0.01, "b8a6": 0.03, "h7h5": 0 }, "confidence": 0.19 } }, "usage": { "input_tokens": 1641, "output_tokens": 280, "cost": 6.8922e-05 }, "provider": "TypeSafe" }, "elapsed_s": 1.414125540992245 }, { "stage": "review", "candidate": "e2e4", "request": { "model": "typesafe/jev-1.13", "state": { "before": { "fen": "rnbqkbnr/1ppppppp/8/p7/8/5N2/PPPPPPPP/RNBQKB1R w KQkq - 0 2", "side_to_move": "white", "pieces": { "a1": "white rook", "b1": "white knight", "c1": "white bishop", "d1": "white queen", "e1": "white king", "f1": "white bishop", "h1": "white rook", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "d2": "white pawn", "e2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "f3": "white knight", "a5": "black pawn", "b7": "black pawn", "c7": "black pawn", "d7": "black pawn", "e7": "black pawn", "f7": "black pawn", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "c8": "black bishop", "d8": "black queen", "e8": "black king", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false }, "candidate": { "uci": "e2e4", "san": "e4" }, "after": { "fen": "rnbqkbnr/1ppppppp/8/p7/4P3/5N2/PPPP1PPP/RNBQKB1R b KQkq - 0 2", "side_to_move": "black", "pieces": { "a1": "white rook", "b1": "white knight", "c1": "white bishop", "d1": "white queen", "e1": "white king", "f1": "white bishop", "h1": "white rook", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "d2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "f3": "white knight", "e4": "white pawn", "a5": "black pawn", "b7": "black pawn", "c7": "black pawn", "d7": "black pawn", "e7": "black pawn", "f7": "black pawn", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "c8": "black bishop", "d8": "black queen", "e8": "black king", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false } }, "questions": { "loses_material": { "type": "noul", "instructions": "After the candidate White move, can Black force a net material gain soon? Check legal captures, recaptures and attacks on ALL White pieces. A fair exchange is not a loss; merely being attacked is not enough. Assess from White perspective." }, "allows_mate": { "type": "noul", "instructions": "Can Black checkmate White on its very next move in the after position?" }, "quality": { "type": "score", "instructions": "Evaluate the candidate for White after Black responds strongly. Do not reward a check that sacrifices material without compensation.", "criteria": [ "Losing blunder", "Dubious or wasteful", "Playable", "Good", "Winning or excellent" ] }, "black_reply": { "type": "choice", "instructions": "Play Black in the AFTER position. Choose the strongest reply to punish White, especially hanging pieces or checkmate. Every offered move is legal.", "criteria": { "a5a4": "a4", "a8a6": "Ra6", "a8a7": "Ra7", "b7b5": "b5", "b7b6": "b6", "b8a6": "Na6", "b8c6": "Nc6", "c7c5": "c5", "c7c6": "c6", "d7d5": "d5", "d7d6": "d6", "e7e5": "e5", "e7e6": "e6", "f7f5": "f5", "f7f6": "f6", "g7g5": "g5", "g7g6": "g6", "g8f6": "Nf6", "g8h6": "Nh6", "h7h5": "h5", "h7h6": "h6" } } } }, "safety": null, "turn": 2, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "loses_material": { "type": "noul", "noul": 0.14 }, "allows_mate": { "type": "noul", "noul": 0.05 }, "quality": { "type": "score", "score": 2.14, "legend": { "0": "Losing blunder", "1": "Dubious or wasteful", "2": "Playable", "3": "Good", "4": "Winning or excellent" }, "probabilities": { "0": 0.07, "1": 0.14, "2": 0.41, "3": 0.35, "4": 0.03 }, "confidence": 0.42 }, "black_reply": { "type": "choice", "choice": "d7d5", "probabilities": { "d7d5": 0.35000000000000003, "c7c6": 0, "b8a6": 0.01, "g7g5": 0.01, "f7f6": 0.01, "a8a6": 0, "b8c6": 0.07, "g8h6": 0.01, "e7e6": 0.01, "d7d6": 0.01, "h7h5": 0, "a5a4": 0.02, "b7b5": 0.03, "f7f5": 0.02, "b7b6": 0, "a8a7": 0, "c7c5": 0.09, "g7g6": 0, "e7e5": 0.21, "h7h6": 0, "g8f6": 0.15 }, "confidence": 0.31 } }, "usage": { "input_tokens": 1641, "output_tokens": 280, "cost": 6.8922e-05 }, "provider": "TypeSafe" }, "elapsed_s": 1.886231604963541 }, { "stage": "review", "candidate": "d2d4", "request": { "model": "typesafe/jev-1.13", "state": { "before": { "fen": "rnbqkbnr/1ppppppp/8/p7/8/5N2/PPPPPPPP/RNBQKB1R w KQkq - 0 2", "side_to_move": "white", "pieces": { "a1": "white rook", "b1": "white knight", "c1": "white bishop", "d1": "white queen", "e1": "white king", "f1": "white bishop", "h1": "white rook", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "d2": "white pawn", "e2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "f3": "white knight", "a5": "black pawn", "b7": "black pawn", "c7": "black pawn", "d7": "black pawn", "e7": "black pawn", "f7": "black pawn", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "c8": "black bishop", "d8": "black queen", "e8": "black king", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false }, "candidate": { "uci": "d2d4", "san": "d4" }, "after": { "fen": "rnbqkbnr/1ppppppp/8/p7/3P4/5N2/PPP1PPPP/RNBQKB1R b KQkq - 0 2", "side_to_move": "black", "pieces": { "a1": "white rook", "b1": "white knight", "c1": "white bishop", "d1": "white queen", "e1": "white king", "f1": "white bishop", "h1": "white rook", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "e2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "f3": "white knight", "d4": "white pawn", "a5": "black pawn", "b7": "black pawn", "c7": "black pawn", "d7": "black pawn", "e7": "black pawn", "f7": "black pawn", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "c8": "black bishop", "d8": "black queen", "e8": "black king", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false } }, "questions": { "loses_material": { "type": "noul", "instructions": "After the candidate White move, can Black force a net material gain soon? Check legal captures, recaptures and attacks on ALL White pieces. A fair exchange is not a loss; merely being attacked is not enough. Assess from White perspective." }, "allows_mate": { "type": "noul", "instructions": "Can Black checkmate White on its very next move in the after position?" }, "quality": { "type": "score", "instructions": "Evaluate the candidate for White after Black responds strongly. Do not reward a check that sacrifices material without compensation.", "criteria": [ "Losing blunder", "Dubious or wasteful", "Playable", "Good", "Winning or excellent" ] }, "black_reply": { "type": "choice", "instructions": "Play Black in the AFTER position. Choose the strongest reply to punish White, especially hanging pieces or checkmate. Every offered move is legal.", "criteria": { "a5a4": "a4", "a8a6": "Ra6", "a8a7": "Ra7", "b7b5": "b5", "b7b6": "b6", "b8a6": "Na6", "b8c6": "Nc6", "c7c5": "c5", "c7c6": "c6", "d7d5": "d5", "d7d6": "d6", "e7e5": "e5", "e7e6": "e6", "f7f5": "f5", "f7f6": "f6", "g7g5": "g5", "g7g6": "g6", "g8f6": "Nf6", "g8h6": "Nh6", "h7h5": "h5", "h7h6": "h6" } } } }, "safety": null, "turn": 2, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "loses_material": { "type": "noul", "noul": 0.13 }, "allows_mate": { "type": "noul", "noul": 0.04 }, "quality": { "type": "score", "score": 2.22, "legend": { "0": "Losing blunder", "1": "Dubious or wasteful", "2": "Playable", "3": "Good", "4": "Winning or excellent" }, "probabilities": { "0": 0.06, "1": 0.1, "2": 0.42, "3": 0.39, "4": 0.03 }, "confidence": 0.44 }, "black_reply": { "type": "choice", "choice": "d7d5", "probabilities": { "c7c6": 0.01, "b8c6": 0.08, "a8a7": 0, "h7h6": 0, "e7e6": 0.01, "g7g5": 0.01, "a8a6": 0, "b8a6": 0.02, "b7b6": 0, "d7d6": 0.01, "a5a4": 0.03, "b7b5": 0.03, "h7h5": 0, "e7e5": 0.22, "g8f6": 0.09, "c7c5": 0.13, "f7f6": 0, "g7g6": 0, "d7d5": 0.35000000000000003, "g8h6": 0, "f7f5": 0.01 }, "confidence": 0.3 } }, "usage": { "input_tokens": 1641, "output_tokens": 280, "cost": 6.8922e-05 }, "provider": "TypeSafe" }, "elapsed_s": 1.382462676963769 }, { "stage": "selection", "candidate": null, "request": { "model": "typesafe/jev-1.13", "state": { "position": { "fen": "rnbqkbnr/1ppppppp/8/p7/8/5N2/PPPPPPPP/RNBQKB1R w KQkq - 0 2", "board": "8 r n b q k b n r\n7 . p p p p p p p\n6 . . . . . . . .\n5 p . . . . . . .\n4 . . . . . . . .\n3 . . . . . N . .\n2 P P P P P P P P\n1 R N B Q K B . R\n a b c d e f g h", "legend": "Uppercase = White, lowercase = Black. P pawn, N knight, B bishop, R rook, Q queen, K king; . empty.", "you_play": "White", "in_check": false, "history_uci": [ "g1f3", "a7a5" ], "history_san": [ "Nf3", "a5" ], "pieces": { "white": { "a1": "rook", "b1": "knight", "c1": "bishop", "d1": "queen", "e1": "king", "f1": "bishop", "h1": "rook", "a2": "pawn", "b2": "pawn", "c2": "pawn", "d2": "pawn", "e2": "pawn", "f2": "pawn", "g2": "pawn", "h2": "pawn", "f3": "knight" }, "black": { "a5": "pawn", "b7": "pawn", "c7": "pawn", "d7": "pawn", "e7": "pawn", "f7": "pawn", "g7": "pawn", "h7": "pawn", "a8": "rook", "b8": "knight", "c8": "bishop", "d8": "queen", "e8": "king", "f8": "bishop", "g8": "knight", "h8": "rook" } } }, "reviews": [ { "uci": "b1c3", "proposal_probability": 0.46, "loss_probability": 0.09, "mate_probability": 0.05, "quality": 2.54, "black_reply": "d7d5", "after_model_reply": { "fen": "rnbqkbnr/1pp1pppp/8/p2p4/8/2N2N2/PPPPPPPP/R1BQKB1R w KQkq - 0 3", "side_to_move": "white", "pieces": { "a1": "white rook", "c1": "white bishop", "d1": "white queen", "e1": "white king", "f1": "white bishop", "h1": "white rook", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "d2": "white pawn", "e2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "c3": "white knight", "f3": "white knight", "a5": "black pawn", "d5": "black pawn", "b7": "black pawn", "c7": "black pawn", "e7": "black pawn", "f7": "black pawn", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "c8": "black bishop", "d8": "black queen", "e8": "black king", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false } }, { "uci": "e2e4", "proposal_probability": 0.18000000000000002, "loss_probability": 0.14, "mate_probability": 0.05, "quality": 2.14, "black_reply": "d7d5", "after_model_reply": { "fen": "rnbqkbnr/1pp1pppp/8/p2p4/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq - 0 3", "side_to_move": "white", "pieces": { "a1": "white rook", "b1": "white knight", "c1": "white bishop", "d1": "white queen", "e1": "white king", "f1": "white bishop", "h1": "white rook", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "d2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "f3": "white knight", "e4": "white pawn", "a5": "black pawn", "d5": "black pawn", "b7": "black pawn", "c7": "black pawn", "e7": "black pawn", "f7": "black pawn", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "c8": "black bishop", "d8": "black queen", "e8": "black king", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false } }, { "uci": "d2d4", "proposal_probability": 0.14, "loss_probability": 0.13, "mate_probability": 0.04, "quality": 2.22, "black_reply": "d7d5", "after_model_reply": { "fen": "rnbqkbnr/1pp1pppp/8/p2p4/3P4/5N2/PPP1PPPP/RNBQKB1R w KQkq - 0 3", "side_to_move": "white", "pieces": { "a1": "white rook", "b1": "white knight", "c1": "white bishop", "d1": "white queen", "e1": "white king", "f1": "white bishop", "h1": "white rook", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "e2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "f3": "white knight", "d4": "white pawn", "a5": "black pawn", "d5": "black pawn", "b7": "black pawn", "c7": "black pawn", "e7": "black pawn", "f7": "black pawn", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "c8": "black bishop", "d8": "black queen", "e8": "black king", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false } } ], "warning": "Reviews and Black replies are fallible predictions of the same Jev model, not verified engine evaluations." }, "questions": { "move": { "type": "choice", "instructions": "Choose the best White move from the reviewed candidates. Independently check each hypothetical Black reply, captures and recaptures. Prefer avoiding material loss, then useful progress and king safety. Reviews may be wrong. A high proposal probability does not prove a good move.", "criteria": { "b1c3": "knight b1 to c3; SAN Nc3", "e2e4": "pawn e2 to e4; SAN e4", "d2d4": "pawn d2 to d4; SAN d4" } } } }, "safety": null, "turn": 2, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "move": { "type": "choice", "choice": "b1c3", "probabilities": { "b1c3": 0.62, "e2e4": 0.19, "d2d4": 0.19 }, "confidence": 0.43 } }, "usage": { "input_tokens": 2445, "output_tokens": 50, "cost": 0.00010269 }, "provider": "TypeSafe" }, "elapsed_s": 1.3912927629426122 }, { "stage": "proposal", "candidate": null, "request": { "model": "typesafe/jev-1.13", "state": { "fen": "rnbqkbnr/1pppp1pp/8/p4p2/8/2N2N2/PPPPPPPP/R1BQKB1R w KQkq - 0 3", "board": "8 r n b q k b n r\n7 . p p p p . p p\n6 . . . . . . . .\n5 p . . . . p . .\n4 . . . . . . . .\n3 . . N . . N . .\n2 P P P P P P P P\n1 R . B Q K B . R\n a b c d e f g h", "legend": "Uppercase = White, lowercase = Black. P pawn, N knight, B bishop, R rook, Q queen, K king; . empty.", "you_play": "White", "in_check": false, "history_uci": [ "g1f3", "a7a5", "b1c3", "f7f5" ], "history_san": [ "Nf3", "a5", "Nc3", "f5" ], "pieces": { "white": { "a1": "rook", "c1": "bishop", "d1": "queen", "e1": "king", "f1": "bishop", "h1": "rook", "a2": "pawn", "b2": "pawn", "c2": "pawn", "d2": "pawn", "e2": "pawn", "f2": "pawn", "g2": "pawn", "h2": "pawn", "c3": "knight", "f3": "knight" }, "black": { "a5": "pawn", "f5": "pawn", "b7": "pawn", "c7": "pawn", "d7": "pawn", "e7": "pawn", "g7": "pawn", "h7": "pawn", "a8": "rook", "b8": "knight", "c8": "bishop", "d8": "queen", "e8": "king", "f8": "bishop", "g8": "knight", "h8": "rook" } } }, "questions": { "move": { "type": "choice", "instructions": "Choose one legal White move. You alone evaluate the moves; their list is unranked. Use the explicit piece locations to check the destination and any lines opened by moving. First consider whether Black can capture your queen, rook or minor pieces after the move. Count both sides of an exchange: pawn=1, knight/bishop=3, rook=5, queen=9. Prefer keeping material unless you can establish a concrete profitable continuation. Giving check is NOT compensation for losing a piece. When no tactic works, develop or improve a safe piece. Protect your king and aim for checkmate. Read the history to avoid purposeless repeats when ahead; a draw can be useful when losing. Return one offered UCI move.", "criteria": { "a1b1": "rook a1 to b1; SAN Rb1", "a2a3": "pawn a2 to a3; SAN a3", "a2a4": "pawn a2 to a4; SAN a4", "b2b3": "pawn b2 to b3; SAN b3", "b2b4": "pawn b2 to b4; SAN b4", "c3a4": "knight c3 to a4; SAN Na4", "c3b1": "knight c3 to b1; SAN Nb1", "c3b5": "knight c3 to b5; SAN Nb5", "c3d5": "knight c3 to d5; SAN Nd5", "c3e4": "knight c3 to e4; SAN Ne4", "d2d3": "pawn d2 to d3; SAN d3", "d2d4": "pawn d2 to d4; SAN d4", "e2e3": "pawn e2 to e3; SAN e3", "e2e4": "pawn e2 to e4; SAN e4", "f3d4": "knight f3 to d4; SAN Nd4", "f3e5": "knight f3 to e5; SAN Ne5", "f3g1": "knight f3 to g1; SAN Ng1", "f3g5": "knight f3 to g5; SAN Ng5", "f3h4": "knight f3 to h4; SAN Nh4", "g2g3": "pawn g2 to g3; SAN g3", "g2g4": "pawn g2 to g4; SAN g4", "h1g1": "rook h1 to g1; SAN Rg1", "h2h3": "pawn h2 to h3; SAN h3", "h2h4": "pawn h2 to h4; SAN h4" } } } }, "safety": null, "turn": 3, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "move": { "type": "choice", "choice": "d2d4", "probabilities": { "e2e3": 0.06, "f3e5": 0.05, "h2h4": 0.01, "c3e4": 0.05, "c3d5": 0.04, "c3b1": 0.01, "a2a3": 0.02, "f3g1": 0, "f3d4": 0.05, "e2e4": 0.16, "b2b3": 0.01, "f3h4": 0.01, "d2d4": 0.24, "g2g4": 0.01, "d2d3": 0.13, "g2g3": 0.01, "h1g1": 0.01, "c3a4": 0.01, "a2a4": 0.05, "h2h3": 0.01, "f3g5": 0.02, "a1b1": 0.01, "b2b4": 0.02, "c3b5": 0.01 }, "confidence": 0.21 } }, "usage": { "input_tokens": 1596, "output_tokens": 260, "cost": 6.7032e-05 }, "provider": "TypeSafe" }, "elapsed_s": 1.6535693269688636 }, { "stage": "review", "candidate": "d2d4", "request": { "model": "typesafe/jev-1.13", "state": { "before": { "fen": "rnbqkbnr/1pppp1pp/8/p4p2/8/2N2N2/PPPPPPPP/R1BQKB1R w KQkq - 0 3", "side_to_move": "white", "pieces": { "a1": "white rook", "c1": "white bishop", "d1": "white queen", "e1": "white king", "f1": "white bishop", "h1": "white rook", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "d2": "white pawn", "e2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "c3": "white knight", "f3": "white knight", "a5": "black pawn", "f5": "black pawn", "b7": "black pawn", "c7": "black pawn", "d7": "black pawn", "e7": "black pawn", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "c8": "black bishop", "d8": "black queen", "e8": "black king", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false }, "candidate": { "uci": "d2d4", "san": "d4" }, "after": { "fen": "rnbqkbnr/1pppp1pp/8/p4p2/3P4/2N2N2/PPP1PPPP/R1BQKB1R b KQkq - 0 3", "side_to_move": "black", "pieces": { "a1": "white rook", "c1": "white bishop", "d1": "white queen", "e1": "white king", "f1": "white bishop", "h1": "white rook", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "e2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "c3": "white knight", "f3": "white knight", "d4": "white pawn", "a5": "black pawn", "f5": "black pawn", "b7": "black pawn", "c7": "black pawn", "d7": "black pawn", "e7": "black pawn", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "c8": "black bishop", "d8": "black queen", "e8": "black king", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false } }, "questions": { "loses_material": { "type": "noul", "instructions": "After the candidate White move, can Black force a net material gain soon? Check legal captures, recaptures and attacks on ALL White pieces. A fair exchange is not a loss; merely being attacked is not enough. Assess from White perspective." }, "allows_mate": { "type": "noul", "instructions": "Can Black checkmate White on its very next move in the after position?" }, "quality": { "type": "score", "instructions": "Evaluate the candidate for White after Black responds strongly. Do not reward a check that sacrifices material without compensation.", "criteria": [ "Losing blunder", "Dubious or wasteful", "Playable", "Good", "Winning or excellent" ] }, "black_reply": { "type": "choice", "instructions": "Play Black in the AFTER position. Choose the strongest reply to punish White, especially hanging pieces or checkmate. Every offered move is legal.", "criteria": { "a5a4": "a4", "a8a6": "Ra6", "a8a7": "Ra7", "b7b5": "b5", "b7b6": "b6", "b8a6": "Na6", "b8c6": "Nc6", "c7c5": "c5", "c7c6": "c6", "d7d5": "d5", "d7d6": "d6", "e7e5": "e5", "e7e6": "e6", "e8f7": "Kf7", "f5f4": "f4", "g7g5": "g5", "g7g6": "g6", "g8f6": "Nf6", "g8h6": "Nh6", "h7h5": "h5", "h7h6": "h6" } } } }, "safety": null, "turn": 3, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "loses_material": { "type": "noul", "noul": 0.19 }, "allows_mate": { "type": "noul", "noul": 0.05 }, "quality": { "type": "score", "score": 2.03, "legend": { "0": "Losing blunder", "1": "Dubious or wasteful", "2": "Playable", "3": "Good", "4": "Winning or excellent" }, "probabilities": { "0": 0.07, "1": 0.18, "2": 0.42, "3": 0.31, "4": 0.02 }, "confidence": 0.43 }, "black_reply": { "type": "choice", "choice": "d7d5", "probabilities": { "h7h6": 0, "a8a6": 0.01, "b8c6": 0.09, "c7c5": 0.13, "d7d6": 0.02, "e8f7": 0, "c7c6": 0.02, "g7g6": 0, "g7g5": 0.01, "h7h5": 0, "b7b6": 0, "b8a6": 0.03, "a5a4": 0.07, "b7b5": 0.05, "e7e5": 0.14, "d7d5": 0.26, "a8a7": 0, "g8f6": 0.06, "e7e6": 0.02, "f5f4": 0.09, "g8h6": 0 }, "confidence": 0.22 } }, "usage": { "input_tokens": 1650, "output_tokens": 280, "cost": 6.93e-05 }, "provider": "TypeSafe" }, "elapsed_s": 1.5523572079837322 }, { "stage": "review", "candidate": "e2e4", "request": { "model": "typesafe/jev-1.13", "state": { "before": { "fen": "rnbqkbnr/1pppp1pp/8/p4p2/8/2N2N2/PPPPPPPP/R1BQKB1R w KQkq - 0 3", "side_to_move": "white", "pieces": { "a1": "white rook", "c1": "white bishop", "d1": "white queen", "e1": "white king", "f1": "white bishop", "h1": "white rook", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "d2": "white pawn", "e2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "c3": "white knight", "f3": "white knight", "a5": "black pawn", "f5": "black pawn", "b7": "black pawn", "c7": "black pawn", "d7": "black pawn", "e7": "black pawn", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "c8": "black bishop", "d8": "black queen", "e8": "black king", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false }, "candidate": { "uci": "e2e4", "san": "e4" }, "after": { "fen": "rnbqkbnr/1pppp1pp/8/p4p2/4P3/2N2N2/PPPP1PPP/R1BQKB1R b KQkq - 0 3", "side_to_move": "black", "pieces": { "a1": "white rook", "c1": "white bishop", "d1": "white queen", "e1": "white king", "f1": "white bishop", "h1": "white rook", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "d2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "c3": "white knight", "f3": "white knight", "e4": "white pawn", "a5": "black pawn", "f5": "black pawn", "b7": "black pawn", "c7": "black pawn", "d7": "black pawn", "e7": "black pawn", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "c8": "black bishop", "d8": "black queen", "e8": "black king", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false } }, "questions": { "loses_material": { "type": "noul", "instructions": "After the candidate White move, can Black force a net material gain soon? Check legal captures, recaptures and attacks on ALL White pieces. A fair exchange is not a loss; merely being attacked is not enough. Assess from White perspective." }, "allows_mate": { "type": "noul", "instructions": "Can Black checkmate White on its very next move in the after position?" }, "quality": { "type": "score", "instructions": "Evaluate the candidate for White after Black responds strongly. Do not reward a check that sacrifices material without compensation.", "criteria": [ "Losing blunder", "Dubious or wasteful", "Playable", "Good", "Winning or excellent" ] }, "black_reply": { "type": "choice", "instructions": "Play Black in the AFTER position. Choose the strongest reply to punish White, especially hanging pieces or checkmate. Every offered move is legal.", "criteria": { "a5a4": "a4", "a8a6": "Ra6", "a8a7": "Ra7", "b7b5": "b5", "b7b6": "b6", "b8a6": "Na6", "b8c6": "Nc6", "c7c5": "c5", "c7c6": "c6", "d7d5": "d5", "d7d6": "d6", "e7e5": "e5", "e7e6": "e6", "e8f7": "Kf7", "f5e4": "fxe4", "f5f4": "f4", "g7g5": "g5", "g7g6": "g6", "g8f6": "Nf6", "g8h6": "Nh6", "h7h5": "h5", "h7h6": "h6" } } } }, "safety": null, "turn": 3, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "loses_material": { "type": "noul", "noul": 0.22 }, "allows_mate": { "type": "noul", "noul": 0.05 }, "quality": { "type": "score", "score": 1.94, "legend": { "0": "Losing blunder", "1": "Dubious or wasteful", "2": "Playable", "3": "Good", "4": "Winning or excellent" }, "probabilities": { "0": 0.09, "1": 0.21, "2": 0.39, "3": 0.28, "4": 0.03 }, "confidence": 0.4 }, "black_reply": { "type": "choice", "choice": "f5e4", "probabilities": { "b8c6": 0.01, "g8h6": 0, "d7d5": 0.04, "e7e5": 0.03, "f5e4": 0.85, "b8a6": 0, "c7c5": 0.02, "g7g5": 0, "d7d6": 0, "e7e6": 0.01, "b7b6": 0, "c7c6": 0, "e8f7": 0, "g7g6": 0, "b7b5": 0.01, "g8f6": 0.01, "a5a4": 0, "a8a6": 0, "h7h5": 0, "a8a7": 0, "f5f4": 0.02, "h7h6": 0 }, "confidence": 0.83 } }, "usage": { "input_tokens": 1667, "output_tokens": 290, "cost": 7.0014e-05 }, "provider": "TypeSafe" }, "elapsed_s": 1.4657866709167138 }, { "stage": "review", "candidate": "d2d3", "request": { "model": "typesafe/jev-1.13", "state": { "before": { "fen": "rnbqkbnr/1pppp1pp/8/p4p2/8/2N2N2/PPPPPPPP/R1BQKB1R w KQkq - 0 3", "side_to_move": "white", "pieces": { "a1": "white rook", "c1": "white bishop", "d1": "white queen", "e1": "white king", "f1": "white bishop", "h1": "white rook", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "d2": "white pawn", "e2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "c3": "white knight", "f3": "white knight", "a5": "black pawn", "f5": "black pawn", "b7": "black pawn", "c7": "black pawn", "d7": "black pawn", "e7": "black pawn", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "c8": "black bishop", "d8": "black queen", "e8": "black king", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false }, "candidate": { "uci": "d2d3", "san": "d3" }, "after": { "fen": "rnbqkbnr/1pppp1pp/8/p4p2/8/2NP1N2/PPP1PPPP/R1BQKB1R b KQkq - 0 3", "side_to_move": "black", "pieces": { "a1": "white rook", "c1": "white bishop", "d1": "white queen", "e1": "white king", "f1": "white bishop", "h1": "white rook", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "e2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "c3": "white knight", "d3": "white pawn", "f3": "white knight", "a5": "black pawn", "f5": "black pawn", "b7": "black pawn", "c7": "black pawn", "d7": "black pawn", "e7": "black pawn", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "c8": "black bishop", "d8": "black queen", "e8": "black king", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false } }, "questions": { "loses_material": { "type": "noul", "instructions": "After the candidate White move, can Black force a net material gain soon? Check legal captures, recaptures and attacks on ALL White pieces. A fair exchange is not a loss; merely being attacked is not enough. Assess from White perspective." }, "allows_mate": { "type": "noul", "instructions": "Can Black checkmate White on its very next move in the after position?" }, "quality": { "type": "score", "instructions": "Evaluate the candidate for White after Black responds strongly. Do not reward a check that sacrifices material without compensation.", "criteria": [ "Losing blunder", "Dubious or wasteful", "Playable", "Good", "Winning or excellent" ] }, "black_reply": { "type": "choice", "instructions": "Play Black in the AFTER position. Choose the strongest reply to punish White, especially hanging pieces or checkmate. Every offered move is legal.", "criteria": { "a5a4": "a4", "a8a6": "Ra6", "a8a7": "Ra7", "b7b5": "b5", "b7b6": "b6", "b8a6": "Na6", "b8c6": "Nc6", "c7c5": "c5", "c7c6": "c6", "d7d5": "d5", "d7d6": "d6", "e7e5": "e5", "e7e6": "e6", "e8f7": "Kf7", "f5f4": "f4", "g7g5": "g5", "g7g6": "g6", "g8f6": "Nf6", "g8h6": "Nh6", "h7h5": "h5", "h7h6": "h6" } } } }, "safety": null, "turn": 3, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "loses_material": { "type": "noul", "noul": 0.17 }, "allows_mate": { "type": "noul", "noul": 0.07 }, "quality": { "type": "score", "score": 1.79, "legend": { "0": "Losing blunder", "1": "Dubious or wasteful", "2": "Playable", "3": "Good", "4": "Winning or excellent" }, "probabilities": { "0": 0.05, "1": 0.27, "2": 0.53, "3": 0.14, "4": 0.01 }, "confidence": 0.56 }, "black_reply": { "type": "choice", "choice": "d7d5", "probabilities": { "e7e6": 0.02, "a8a7": 0, "b8a6": 0.03, "a5a4": 0.08, "h7h6": 0, "c7c5": 0.07, "g8f6": 0.07, "b8c6": 0.11, "g7g6": 0, "g7g5": 0.01, "h7h5": 0, "d7d6": 0.03, "b7b5": 0.05, "e7e5": 0.1, "a8a6": 0.01, "c7c6": 0.02, "d7d5": 0.24000000000000002, "b7b6": 0.01, "e8f7": 0.01, "g8h6": 0, "f5f4": 0.14 }, "confidence": 0.19 } }, "usage": { "input_tokens": 1648, "output_tokens": 280, "cost": 6.9216e-05 }, "provider": "TypeSafe" }, "elapsed_s": 1.478823607088998 }, { "stage": "selection", "candidate": null, "request": { "model": "typesafe/jev-1.13", "state": { "position": { "fen": "rnbqkbnr/1pppp1pp/8/p4p2/8/2N2N2/PPPPPPPP/R1BQKB1R w KQkq - 0 3", "board": "8 r n b q k b n r\n7 . p p p p . p p\n6 . . . . . . . .\n5 p . . . . p . .\n4 . . . . . . . .\n3 . . N . . N . .\n2 P P P P P P P P\n1 R . B Q K B . R\n a b c d e f g h", "legend": "Uppercase = White, lowercase = Black. P pawn, N knight, B bishop, R rook, Q queen, K king; . empty.", "you_play": "White", "in_check": false, "history_uci": [ "g1f3", "a7a5", "b1c3", "f7f5" ], "history_san": [ "Nf3", "a5", "Nc3", "f5" ], "pieces": { "white": { "a1": "rook", "c1": "bishop", "d1": "queen", "e1": "king", "f1": "bishop", "h1": "rook", "a2": "pawn", "b2": "pawn", "c2": "pawn", "d2": "pawn", "e2": "pawn", "f2": "pawn", "g2": "pawn", "h2": "pawn", "c3": "knight", "f3": "knight" }, "black": { "a5": "pawn", "f5": "pawn", "b7": "pawn", "c7": "pawn", "d7": "pawn", "e7": "pawn", "g7": "pawn", "h7": "pawn", "a8": "rook", "b8": "knight", "c8": "bishop", "d8": "queen", "e8": "king", "f8": "bishop", "g8": "knight", "h8": "rook" } } }, "reviews": [ { "uci": "d2d4", "proposal_probability": 0.24, "loss_probability": 0.19, "mate_probability": 0.05, "quality": 2.03, "black_reply": "d7d5", "after_model_reply": { "fen": "rnbqkbnr/1pp1p1pp/8/p2p1p2/3P4/2N2N2/PPP1PPPP/R1BQKB1R w KQkq - 0 4", "side_to_move": "white", "pieces": { "a1": "white rook", "c1": "white bishop", "d1": "white queen", "e1": "white king", "f1": "white bishop", "h1": "white rook", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "e2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "c3": "white knight", "f3": "white knight", "d4": "white pawn", "a5": "black pawn", "d5": "black pawn", "f5": "black pawn", "b7": "black pawn", "c7": "black pawn", "e7": "black pawn", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "c8": "black bishop", "d8": "black queen", "e8": "black king", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false } }, { "uci": "e2e4", "proposal_probability": 0.16, "loss_probability": 0.22, "mate_probability": 0.05, "quality": 1.94, "black_reply": "f5e4", "after_model_reply": { "fen": "rnbqkbnr/1pppp1pp/8/p7/4p3/2N2N2/PPPP1PPP/R1BQKB1R w KQkq - 0 4", "side_to_move": "white", "pieces": { "a1": "white rook", "c1": "white bishop", "d1": "white queen", "e1": "white king", "f1": "white bishop", "h1": "white rook", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "d2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "c3": "white knight", "f3": "white knight", "e4": "black pawn", "a5": "black pawn", "b7": "black pawn", "c7": "black pawn", "d7": "black pawn", "e7": "black pawn", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "c8": "black bishop", "d8": "black queen", "e8": "black king", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false } }, { "uci": "d2d3", "proposal_probability": 0.13, "loss_probability": 0.17, "mate_probability": 0.07, "quality": 1.79, "black_reply": "d7d5", "after_model_reply": { "fen": "rnbqkbnr/1pp1p1pp/8/p2p1p2/8/2NP1N2/PPP1PPPP/R1BQKB1R w KQkq - 0 4", "side_to_move": "white", "pieces": { "a1": "white rook", "c1": "white bishop", "d1": "white queen", "e1": "white king", "f1": "white bishop", "h1": "white rook", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "e2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "c3": "white knight", "d3": "white pawn", "f3": "white knight", "a5": "black pawn", "d5": "black pawn", "f5": "black pawn", "b7": "black pawn", "c7": "black pawn", "e7": "black pawn", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "c8": "black bishop", "d8": "black queen", "e8": "black king", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false } } ], "warning": "Reviews and Black replies are fallible predictions of the same Jev model, not verified engine evaluations." }, "questions": { "move": { "type": "choice", "instructions": "Choose the best White move from the reviewed candidates. Independently check each hypothetical Black reply, captures and recaptures. Prefer avoiding material loss, then useful progress and king safety. Reviews may be wrong. A high proposal probability does not prove a good move.", "criteria": { "d2d4": "pawn d2 to d4; SAN d4", "e2e4": "pawn e2 to e4; SAN e4", "d2d3": "pawn d2 to d3; SAN d3" } } } }, "safety": null, "turn": 3, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "move": { "type": "choice", "choice": "d2d4", "probabilities": { "d2d3": 0.31, "e2e4": 0.11, "d2d4": 0.58 }, "confidence": 0.37 } }, "usage": { "input_tokens": 2455, "output_tokens": 50, "cost": 0.00010311 }, "provider": "TypeSafe" }, "elapsed_s": 1.3615375469671562 }, { "stage": "proposal", "candidate": null, "request": { "model": "typesafe/jev-1.13", "state": { "fen": "rnbq1bnr/1ppppkpp/8/p4p2/3P4/2N2N2/PPP1PPPP/R1BQKB1R w KQ - 1 4", "board": "8 r n b q . b n r\n7 . p p p p k p p\n6 . . . . . . . .\n5 p . . . . p . .\n4 . . . P . . . .\n3 . . N . . N . .\n2 P P P . P P P P\n1 R . B Q K B . R\n a b c d e f g h", "legend": "Uppercase = White, lowercase = Black. P pawn, N knight, B bishop, R rook, Q queen, K king; . empty.", "you_play": "White", "in_check": false, "history_uci": [ "g1f3", "a7a5", "b1c3", "f7f5", "d2d4", "e8f7" ], "history_san": [ "Nf3", "a5", "Nc3", "f5", "d4", "Kf7" ], "pieces": { "white": { "a1": "rook", "c1": "bishop", "d1": "queen", "e1": "king", "f1": "bishop", "h1": "rook", "a2": "pawn", "b2": "pawn", "c2": "pawn", "e2": "pawn", "f2": "pawn", "g2": "pawn", "h2": "pawn", "c3": "knight", "f3": "knight", "d4": "pawn" }, "black": { "a5": "pawn", "f5": "pawn", "b7": "pawn", "c7": "pawn", "d7": "pawn", "e7": "pawn", "f7": "king", "g7": "pawn", "h7": "pawn", "a8": "rook", "b8": "knight", "c8": "bishop", "d8": "queen", "f8": "bishop", "g8": "knight", "h8": "rook" } } }, "questions": { "move": { "type": "choice", "instructions": "Choose one legal White move. You alone evaluate the moves; their list is unranked. Use the explicit piece locations to check the destination and any lines opened by moving. First consider whether Black can capture your queen, rook or minor pieces after the move. Count both sides of an exchange: pawn=1, knight/bishop=3, rook=5, queen=9. Prefer keeping material unless you can establish a concrete profitable continuation. Giving check is NOT compensation for losing a piece. When no tactic works, develop or improve a safe piece. Protect your king and aim for checkmate. Read the history to avoid purposeless repeats when ahead; a draw can be useful when losing. Return one offered UCI move.", "criteria": { "a1b1": "rook a1 to b1; SAN Rb1", "a2a3": "pawn a2 to a3; SAN a3", "a2a4": "pawn a2 to a4; SAN a4", "b2b3": "pawn b2 to b3; SAN b3", "b2b4": "pawn b2 to b4; SAN b4", "c1d2": "bishop c1 to d2; SAN Bd2", "c1e3": "bishop c1 to e3; SAN Be3", "c1f4": "bishop c1 to f4; SAN Bf4", "c1g5": "bishop c1 to g5; SAN Bg5", "c1h6": "bishop c1 to h6; SAN Bh6", "c3a4": "knight c3 to a4; SAN Na4", "c3b1": "knight c3 to b1; SAN Nb1", "c3b5": "knight c3 to b5; SAN Nb5", "c3d5": "knight c3 to d5; SAN Nd5", "c3e4": "knight c3 to e4; SAN Ne4", "d1d2": "queen d1 to d2; SAN Qd2", "d1d3": "queen d1 to d3; SAN Qd3", "d4d5": "pawn d4 to d5; SAN d5", "e1d2": "king e1 to d2; SAN Kd2", "e2e3": "pawn e2 to e3; SAN e3", "e2e4": "pawn e2 to e4; SAN e4", "f3d2": "knight f3 to d2; SAN Nd2", "f3e5": "knight f3 to e5; SAN Ne5+", "f3g1": "knight f3 to g1; SAN Ng1", "f3g5": "knight f3 to g5; SAN Ng5+", "f3h4": "knight f3 to h4; SAN Nh4", "g2g3": "pawn g2 to g3; SAN g3", "g2g4": "pawn g2 to g4; SAN g4", "h1g1": "rook h1 to g1; SAN Rg1", "h2h3": "pawn h2 to h3; SAN h3", "h2h4": "pawn h2 to h4; SAN h4" } } } }, "safety": null, "turn": 4, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "move": { "type": "choice", "choice": "f3e5", "probabilities": { "h2h3": 0.01, "f3h4": 0.01, "a2a3": 0.01, "c3e4": 0.05, "e1d2": 0.01, "b2b4": 0.01, "c1g5": 0.03, "c1h6": 0.01, "h1g1": 0.01, "d4d5": 0.03, "c3b5": 0.02, "e2e4": 0.1, "a2a4": 0.02, "c3a4": 0.03, "c1e3": 0.04, "d1d2": 0.01, "g2g3": 0.02, "f3e5": 0.19999999999999998, "g2g4": 0.01, "f3d2": 0.01, "d1d3": 0.02, "e2e3": 0.08, "b2b3": 0.02, "h2h4": 0.01, "a1b1": 0.01, "c1f4": 0.07, "c3d5": 0.04, "f3g1": 0, "c3b1": 0, "c1d2": 0.04, "f3g5": 0.07 }, "confidence": 0.19 } }, "usage": { "input_tokens": 1795, "output_tokens": 330, "cost": 7.539e-05 }, "provider": "TypeSafe" }, "elapsed_s": 1.6371755249565467 }, { "stage": "review", "candidate": "f3e5", "request": { "model": "typesafe/jev-1.13", "state": { "before": { "fen": "rnbq1bnr/1ppppkpp/8/p4p2/3P4/2N2N2/PPP1PPPP/R1BQKB1R w KQ - 1 4", "side_to_move": "white", "pieces": { "a1": "white rook", "c1": "white bishop", "d1": "white queen", "e1": "white king", "f1": "white bishop", "h1": "white rook", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "e2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "c3": "white knight", "f3": "white knight", "d4": "white pawn", "a5": "black pawn", "f5": "black pawn", "b7": "black pawn", "c7": "black pawn", "d7": "black pawn", "e7": "black pawn", "f7": "black king", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "c8": "black bishop", "d8": "black queen", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false }, "candidate": { "uci": "f3e5", "san": "Ne5+" }, "after": { "fen": "rnbq1bnr/1ppppkpp/8/p3Np2/3P4/2N5/PPP1PPPP/R1BQKB1R b KQ - 2 4", "side_to_move": "black", "pieces": { "a1": "white rook", "c1": "white bishop", "d1": "white queen", "e1": "white king", "f1": "white bishop", "h1": "white rook", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "e2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "c3": "white knight", "d4": "white pawn", "a5": "black pawn", "e5": "white knight", "f5": "black pawn", "b7": "black pawn", "c7": "black pawn", "d7": "black pawn", "e7": "black pawn", "f7": "black king", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "c8": "black bishop", "d8": "black queen", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": true, "terminal": false } }, "questions": { "loses_material": { "type": "noul", "instructions": "After the candidate White move, can Black force a net material gain soon? Check legal captures, recaptures and attacks on ALL White pieces. A fair exchange is not a loss; merely being attacked is not enough. Assess from White perspective." }, "allows_mate": { "type": "noul", "instructions": "Can Black checkmate White on its very next move in the after position?" }, "quality": { "type": "score", "instructions": "Evaluate the candidate for White after Black responds strongly. Do not reward a check that sacrifices material without compensation.", "criteria": [ "Losing blunder", "Dubious or wasteful", "Playable", "Good", "Winning or excellent" ] }, "black_reply": { "type": "choice", "instructions": "Play Black in the AFTER position. Choose the strongest reply to punish White, especially hanging pieces or checkmate. Every offered move is legal.", "criteria": { "f7e6": "Ke6", "f7e8": "Ke8", "f7f6": "Kf6" } } } }, "safety": null, "turn": 4, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "loses_material": { "type": "noul", "noul": 0.41 }, "allows_mate": { "type": "noul", "noul": 0.08 }, "quality": { "type": "score", "score": 1.83, "legend": { "0": "Losing blunder", "1": "Dubious or wasteful", "2": "Playable", "3": "Good", "4": "Winning or excellent" }, "probabilities": { "0": 0.16, "1": 0.27, "2": 0.23, "3": 0.25, "4": 0.09 }, "confidence": 0.05 }, "black_reply": { "type": "choice", "choice": "f7e6", "probabilities": { "f7e6": 0.4, "f7e8": 0.25, "f7f6": 0.35 }, "confidence": 0.09 } }, "usage": { "input_tokens": 1358, "output_tokens": 100, "cost": 5.7036e-05 }, "provider": "TypeSafe" }, "elapsed_s": 1.415000289096497 }, { "stage": "review", "candidate": "e2e4", "request": { "model": "typesafe/jev-1.13", "state": { "before": { "fen": "rnbq1bnr/1ppppkpp/8/p4p2/3P4/2N2N2/PPP1PPPP/R1BQKB1R w KQ - 1 4", "side_to_move": "white", "pieces": { "a1": "white rook", "c1": "white bishop", "d1": "white queen", "e1": "white king", "f1": "white bishop", "h1": "white rook", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "e2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "c3": "white knight", "f3": "white knight", "d4": "white pawn", "a5": "black pawn", "f5": "black pawn", "b7": "black pawn", "c7": "black pawn", "d7": "black pawn", "e7": "black pawn", "f7": "black king", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "c8": "black bishop", "d8": "black queen", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false }, "candidate": { "uci": "e2e4", "san": "e4" }, "after": { "fen": "rnbq1bnr/1ppppkpp/8/p4p2/3PP3/2N2N2/PPP2PPP/R1BQKB1R b KQ - 0 4", "side_to_move": "black", "pieces": { "a1": "white rook", "c1": "white bishop", "d1": "white queen", "e1": "white king", "f1": "white bishop", "h1": "white rook", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "c3": "white knight", "f3": "white knight", "d4": "white pawn", "e4": "white pawn", "a5": "black pawn", "f5": "black pawn", "b7": "black pawn", "c7": "black pawn", "d7": "black pawn", "e7": "black pawn", "f7": "black king", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "c8": "black bishop", "d8": "black queen", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false } }, "questions": { "loses_material": { "type": "noul", "instructions": "After the candidate White move, can Black force a net material gain soon? Check legal captures, recaptures and attacks on ALL White pieces. A fair exchange is not a loss; merely being attacked is not enough. Assess from White perspective." }, "allows_mate": { "type": "noul", "instructions": "Can Black checkmate White on its very next move in the after position?" }, "quality": { "type": "score", "instructions": "Evaluate the candidate for White after Black responds strongly. Do not reward a check that sacrifices material without compensation.", "criteria": [ "Losing blunder", "Dubious or wasteful", "Playable", "Good", "Winning or excellent" ] }, "black_reply": { "type": "choice", "instructions": "Play Black in the AFTER position. Choose the strongest reply to punish White, especially hanging pieces or checkmate. Every offered move is legal.", "criteria": { "a5a4": "a4", "a8a6": "Ra6", "a8a7": "Ra7", "b7b5": "b5", "b7b6": "b6", "b8a6": "Na6", "b8c6": "Nc6", "c7c5": "c5", "c7c6": "c6", "d7d5": "d5", "d7d6": "d6", "d8e8": "Qe8", "e7e5": "e5", "e7e6": "e6", "f5e4": "fxe4", "f5f4": "f4", "f7e6": "Ke6", "f7e8": "Ke8", "f7f6": "Kf6", "f7g6": "Kg6", "g7g5": "g5", "g7g6": "g6", "g8f6": "Nf6", "g8h6": "Nh6", "h7h5": "h5", "h7h6": "h6" } } } }, "safety": null, "turn": 4, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "loses_material": { "type": "noul", "noul": 0.21 }, "allows_mate": { "type": "noul", "noul": 0.06 }, "quality": { "type": "score", "score": 2.03, "legend": { "0": "Losing blunder", "1": "Dubious or wasteful", "2": "Playable", "3": "Good", "4": "Winning or excellent" }, "probabilities": { "0": 0.07, "1": 0.2, "2": 0.38, "3": 0.32, "4": 0.03 }, "confidence": 0.39 }, "black_reply": { "type": "choice", "choice": "f5e4", "probabilities": { "b8c6": 0.02, "c7c6": 0, "b7b6": 0, "h7h6": 0, "e7e6": 0.01, "g7g5": 0, "a8a6": 0, "a8a7": 0, "f5f4": 0.04, "d7d6": 0, "f7g6": 0, "b8a6": 0, "f7e8": 0, "a5a4": 0, "e7e5": 0.03, "h7h5": 0, "b7b5": 0.01, "f7e6": 0.01, "d8e8": 0, "c7c5": 0.02, "f5e4": 0.79, "g8f6": 0.02, "f7f6": 0, "d7d5": 0.05, "g7g6": 0, "g8h6": 0 }, "confidence": 0.77 } }, "usage": { "input_tokens": 1729, "output_tokens": 330, "cost": 7.2618e-05 }, "provider": "TypeSafe" }, "elapsed_s": 1.902033142047003 }, { "stage": "review", "candidate": "e2e3", "request": { "model": "typesafe/jev-1.13", "state": { "before": { "fen": "rnbq1bnr/1ppppkpp/8/p4p2/3P4/2N2N2/PPP1PPPP/R1BQKB1R w KQ - 1 4", "side_to_move": "white", "pieces": { "a1": "white rook", "c1": "white bishop", "d1": "white queen", "e1": "white king", "f1": "white bishop", "h1": "white rook", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "e2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "c3": "white knight", "f3": "white knight", "d4": "white pawn", "a5": "black pawn", "f5": "black pawn", "b7": "black pawn", "c7": "black pawn", "d7": "black pawn", "e7": "black pawn", "f7": "black king", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "c8": "black bishop", "d8": "black queen", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false }, "candidate": { "uci": "e2e3", "san": "e3" }, "after": { "fen": "rnbq1bnr/1ppppkpp/8/p4p2/3P4/2N1PN2/PPP2PPP/R1BQKB1R b KQ - 0 4", "side_to_move": "black", "pieces": { "a1": "white rook", "c1": "white bishop", "d1": "white queen", "e1": "white king", "f1": "white bishop", "h1": "white rook", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "c3": "white knight", "e3": "white pawn", "f3": "white knight", "d4": "white pawn", "a5": "black pawn", "f5": "black pawn", "b7": "black pawn", "c7": "black pawn", "d7": "black pawn", "e7": "black pawn", "f7": "black king", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "c8": "black bishop", "d8": "black queen", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false } }, "questions": { "loses_material": { "type": "noul", "instructions": "After the candidate White move, can Black force a net material gain soon? Check legal captures, recaptures and attacks on ALL White pieces. A fair exchange is not a loss; merely being attacked is not enough. Assess from White perspective." }, "allows_mate": { "type": "noul", "instructions": "Can Black checkmate White on its very next move in the after position?" }, "quality": { "type": "score", "instructions": "Evaluate the candidate for White after Black responds strongly. Do not reward a check that sacrifices material without compensation.", "criteria": [ "Losing blunder", "Dubious or wasteful", "Playable", "Good", "Winning or excellent" ] }, "black_reply": { "type": "choice", "instructions": "Play Black in the AFTER position. Choose the strongest reply to punish White, especially hanging pieces or checkmate. Every offered move is legal.", "criteria": { "a5a4": "a4", "a8a6": "Ra6", "a8a7": "Ra7", "b7b5": "b5", "b7b6": "b6", "b8a6": "Na6", "b8c6": "Nc6", "c7c5": "c5", "c7c6": "c6", "d7d5": "d5", "d7d6": "d6", "d8e8": "Qe8", "e7e5": "e5", "e7e6": "e6", "f5f4": "f4", "f7e6": "Ke6", "f7e8": "Ke8", "f7f6": "Kf6", "f7g6": "Kg6", "g7g5": "g5", "g7g6": "g6", "g8f6": "Nf6", "g8h6": "Nh6", "h7h5": "h5", "h7h6": "h6" } } } }, "safety": null, "turn": 4, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "loses_material": { "type": "noul", "noul": 0.21 }, "allows_mate": { "type": "noul", "noul": 0.08 }, "quality": { "type": "score", "score": 1.78, "legend": { "0": "Losing blunder", "1": "Dubious or wasteful", "2": "Playable", "3": "Good", "4": "Winning or excellent" }, "probabilities": { "0": 0.06, "1": 0.28, "2": 0.49, "3": 0.16, "4": 0.01 }, "confidence": 0.52 }, "black_reply": { "type": "choice", "choice": "e7e5", "probabilities": { "c7c6": 0.01, "a5a4": 0.03, "a8a7": 0, "b8c6": 0.05, "a8a6": 0, "g7g5": 0.01, "c7c5": 0.07, "d8e8": 0.02, "d7d6": 0.01, "f7g6": 0.01, "h7h6": 0, "g7g6": 0, "b8a6": 0.01, "f7f6": 0.02, "g8f6": 0.17, "f5f4": 0.09, "h7h5": 0, "e7e6": 0.03, "f7e8": 0.02, "e7e5": 0.19, "b7b6": 0, "f7e6": 0.04, "g8h6": 0.01, "d7d5": 0.17, "b7b5": 0.04 }, "confidence": 0.14 } }, "usage": { "input_tokens": 1712, "output_tokens": 320, "cost": 7.1904e-05 }, "provider": "TypeSafe" }, "elapsed_s": 1.6844925929326564 }, { "stage": "selection", "candidate": null, "request": { "model": "typesafe/jev-1.13", "state": { "position": { "fen": "rnbq1bnr/1ppppkpp/8/p4p2/3P4/2N2N2/PPP1PPPP/R1BQKB1R w KQ - 1 4", "board": "8 r n b q . b n r\n7 . p p p p k p p\n6 . . . . . . . .\n5 p . . . . p . .\n4 . . . P . . . .\n3 . . N . . N . .\n2 P P P . P P P P\n1 R . B Q K B . R\n a b c d e f g h", "legend": "Uppercase = White, lowercase = Black. P pawn, N knight, B bishop, R rook, Q queen, K king; . empty.", "you_play": "White", "in_check": false, "history_uci": [ "g1f3", "a7a5", "b1c3", "f7f5", "d2d4", "e8f7" ], "history_san": [ "Nf3", "a5", "Nc3", "f5", "d4", "Kf7" ], "pieces": { "white": { "a1": "rook", "c1": "bishop", "d1": "queen", "e1": "king", "f1": "bishop", "h1": "rook", "a2": "pawn", "b2": "pawn", "c2": "pawn", "e2": "pawn", "f2": "pawn", "g2": "pawn", "h2": "pawn", "c3": "knight", "f3": "knight", "d4": "pawn" }, "black": { "a5": "pawn", "f5": "pawn", "b7": "pawn", "c7": "pawn", "d7": "pawn", "e7": "pawn", "f7": "king", "g7": "pawn", "h7": "pawn", "a8": "rook", "b8": "knight", "c8": "bishop", "d8": "queen", "f8": "bishop", "g8": "knight", "h8": "rook" } } }, "reviews": [ { "uci": "f3e5", "proposal_probability": 0.19999999999999998, "loss_probability": 0.41, "mate_probability": 0.08, "quality": 1.83, "black_reply": "f7e6", "after_model_reply": { "fen": "rnbq1bnr/1pppp1pp/4k3/p3Np2/3P4/2N5/PPP1PPPP/R1BQKB1R w KQ - 3 5", "side_to_move": "white", "pieces": { "a1": "white rook", "c1": "white bishop", "d1": "white queen", "e1": "white king", "f1": "white bishop", "h1": "white rook", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "e2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "c3": "white knight", "d4": "white pawn", "a5": "black pawn", "e5": "white knight", "f5": "black pawn", "e6": "black king", "b7": "black pawn", "c7": "black pawn", "d7": "black pawn", "e7": "black pawn", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "c8": "black bishop", "d8": "black queen", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false } }, { "uci": "e2e4", "proposal_probability": 0.1, "loss_probability": 0.21, "mate_probability": 0.06, "quality": 2.03, "black_reply": "f5e4", "after_model_reply": { "fen": "rnbq1bnr/1ppppkpp/8/p7/3Pp3/2N2N2/PPP2PPP/R1BQKB1R w KQ - 0 5", "side_to_move": "white", "pieces": { "a1": "white rook", "c1": "white bishop", "d1": "white queen", "e1": "white king", "f1": "white bishop", "h1": "white rook", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "c3": "white knight", "f3": "white knight", "d4": "white pawn", "e4": "black pawn", "a5": "black pawn", "b7": "black pawn", "c7": "black pawn", "d7": "black pawn", "e7": "black pawn", "f7": "black king", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "c8": "black bishop", "d8": "black queen", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false } }, { "uci": "e2e3", "proposal_probability": 0.08, "loss_probability": 0.21, "mate_probability": 0.08, "quality": 1.78, "black_reply": "e7e5", "after_model_reply": { "fen": "rnbq1bnr/1ppp1kpp/8/p3pp2/3P4/2N1PN2/PPP2PPP/R1BQKB1R w KQ - 0 5", "side_to_move": "white", "pieces": { "a1": "white rook", "c1": "white bishop", "d1": "white queen", "e1": "white king", "f1": "white bishop", "h1": "white rook", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "c3": "white knight", "e3": "white pawn", "f3": "white knight", "d4": "white pawn", "a5": "black pawn", "e5": "black pawn", "f5": "black pawn", "b7": "black pawn", "c7": "black pawn", "d7": "black pawn", "f7": "black king", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "c8": "black bishop", "d8": "black queen", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false } } ], "warning": "Reviews and Black replies are fallible predictions of the same Jev model, not verified engine evaluations." }, "questions": { "move": { "type": "choice", "instructions": "Choose the best White move from the reviewed candidates. Independently check each hypothetical Black reply, captures and recaptures. Prefer avoiding material loss, then useful progress and king safety. Reviews may be wrong. A high proposal probability does not prove a good move.", "criteria": { "f3e5": "knight f3 to e5; SAN Ne5+", "e2e4": "pawn e2 to e4; SAN e4", "e2e3": "pawn e2 to e3; SAN e3" } } } }, "safety": null, "turn": 4, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "move": { "type": "choice", "choice": "e2e3", "probabilities": { "e2e4": 0.29, "f3e5": 0.29, "e2e3": 0.42 }, "confidence": 0.14 } }, "usage": { "input_tokens": 2486, "output_tokens": 50, "cost": 0.000104412 }, "provider": "TypeSafe" }, "elapsed_s": 1.4673719389829785 }, { "stage": "proposal", "candidate": null, "request": { "model": "typesafe/jev-1.13", "state": { "fen": "rnbq1bnr/1p1ppkpp/2p5/p4p2/3P4/2N1PN2/PPP2PPP/R1BQKB1R w KQ - 0 5", "board": "8 r n b q . b n r\n7 . p . p p k p p\n6 . . p . . . . .\n5 p . . . . p . .\n4 . . . P . . . .\n3 . . N . P N . .\n2 P P P . . P P P\n1 R . B Q K B . R\n a b c d e f g h", "legend": "Uppercase = White, lowercase = Black. P pawn, N knight, B bishop, R rook, Q queen, K king; . empty.", "you_play": "White", "in_check": false, "history_uci": [ "g1f3", "a7a5", "b1c3", "f7f5", "d2d4", "e8f7", "e2e3", "c7c6" ], "history_san": [ "Nf3", "a5", "Nc3", "f5", "d4", "Kf7", "e3", "c6" ], "pieces": { "white": { "a1": "rook", "c1": "bishop", "d1": "queen", "e1": "king", "f1": "bishop", "h1": "rook", "a2": "pawn", "b2": "pawn", "c2": "pawn", "f2": "pawn", "g2": "pawn", "h2": "pawn", "c3": "knight", "e3": "pawn", "f3": "knight", "d4": "pawn" }, "black": { "a5": "pawn", "f5": "pawn", "c6": "pawn", "b7": "pawn", "d7": "pawn", "e7": "pawn", "f7": "king", "g7": "pawn", "h7": "pawn", "a8": "rook", "b8": "knight", "c8": "bishop", "d8": "queen", "f8": "bishop", "g8": "knight", "h8": "rook" } } }, "questions": { "move": { "type": "choice", "instructions": "Choose one legal White move. You alone evaluate the moves; their list is unranked. Use the explicit piece locations to check the destination and any lines opened by moving. First consider whether Black can capture your queen, rook or minor pieces after the move. Count both sides of an exchange: pawn=1, knight/bishop=3, rook=5, queen=9. Prefer keeping material unless you can establish a concrete profitable continuation. Giving check is NOT compensation for losing a piece. When no tactic works, develop or improve a safe piece. Protect your king and aim for checkmate. Read the history to avoid purposeless repeats when ahead; a draw can be useful when losing. Return one offered UCI move.", "criteria": { "a1b1": "rook a1 to b1; SAN Rb1", "a2a3": "pawn a2 to a3; SAN a3", "a2a4": "pawn a2 to a4; SAN a4", "b2b3": "pawn b2 to b3; SAN b3", "b2b4": "pawn b2 to b4; SAN b4", "c1d2": "bishop c1 to d2; SAN Bd2", "c3a4": "knight c3 to a4; SAN Na4", "c3b1": "knight c3 to b1; SAN Nb1", "c3b5": "knight c3 to b5; SAN Nb5", "c3d5": "knight c3 to d5; SAN Nd5", "c3e2": "knight c3 to e2; SAN Ne2", "c3e4": "knight c3 to e4; SAN Ne4", "d1d2": "queen d1 to d2; SAN Qd2", "d1d3": "queen d1 to d3; SAN Qd3", "d1e2": "queen d1 to e2; SAN Qe2", "d4d5": "pawn d4 to d5; SAN d5", "e1d2": "king e1 to d2; SAN Kd2", "e1e2": "king e1 to e2; SAN Ke2", "e3e4": "pawn e3 to e4; SAN e4", "f1a6": "bishop f1 to a6; SAN Ba6", "f1b5": "bishop f1 to b5; SAN Bb5", "f1c4": "bishop f1 to c4; SAN Bc4+", "f1d3": "bishop f1 to d3; SAN Bd3", "f1e2": "bishop f1 to e2; SAN Be2", "f3d2": "knight f3 to d2; SAN Nd2", "f3e5": "knight f3 to e5; SAN Ne5+", "f3g1": "knight f3 to g1; SAN Ng1", "f3g5": "knight f3 to g5; SAN Ng5+", "f3h4": "knight f3 to h4; SAN Nh4", "g2g3": "pawn g2 to g3; SAN g3", "g2g4": "pawn g2 to g4; SAN g4", "h1g1": "rook h1 to g1; SAN Rg1", "h2h3": "pawn h2 to h3; SAN h3", "h2h4": "pawn h2 to h4; SAN h4" } } } }, "safety": null, "turn": 5, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "move": { "type": "choice", "choice": "f3e5", "probabilities": { "f3g5": 0.06, "d1d3": 0.02, "b2b3": 0.01, "e3e4": 0.03, "d4d5": 0.04, "f1e2": 0.07, "c3d5": 0.04, "e1e2": 0.02, "c3b1": 0, "c3e2": 0.01, "f1c4": 0.14, "a2a4": 0.02, "f1a6": 0.01, "g2g4": 0.01, "c1d2": 0.04, "d1e2": 0.01, "c3b5": 0.02, "f1b5": 0.03, "f3e5": 0.19, "a2a3": 0.02, "a1b1": 0.01, "h1g1": 0.01, "f3d2": 0.01, "e1d2": 0.01, "h2h3": 0.01, "h2h4": 0.01, "b2b4": 0.01, "c3e4": 0.04, "f3h4": 0.01, "f3g1": 0, "c3a4": 0.01, "d1d2": 0.01, "f1d3": 0.05, "g2g3": 0.02 }, "confidence": 0.16 } }, "usage": { "input_tokens": 1896, "output_tokens": 360, "cost": 7.9632e-05 }, "provider": "TypeSafe" }, "elapsed_s": 1.4146331190131605 }, { "stage": "review", "candidate": "f3e5", "request": { "model": "typesafe/jev-1.13", "state": { "before": { "fen": "rnbq1bnr/1p1ppkpp/2p5/p4p2/3P4/2N1PN2/PPP2PPP/R1BQKB1R w KQ - 0 5", "side_to_move": "white", "pieces": { "a1": "white rook", "c1": "white bishop", "d1": "white queen", "e1": "white king", "f1": "white bishop", "h1": "white rook", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "c3": "white knight", "e3": "white pawn", "f3": "white knight", "d4": "white pawn", "a5": "black pawn", "f5": "black pawn", "c6": "black pawn", "b7": "black pawn", "d7": "black pawn", "e7": "black pawn", "f7": "black king", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "c8": "black bishop", "d8": "black queen", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false }, "candidate": { "uci": "f3e5", "san": "Ne5+" }, "after": { "fen": "rnbq1bnr/1p1ppkpp/2p5/p3Np2/3P4/2N1P3/PPP2PPP/R1BQKB1R b KQ - 1 5", "side_to_move": "black", "pieces": { "a1": "white rook", "c1": "white bishop", "d1": "white queen", "e1": "white king", "f1": "white bishop", "h1": "white rook", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "c3": "white knight", "e3": "white pawn", "d4": "white pawn", "a5": "black pawn", "e5": "white knight", "f5": "black pawn", "c6": "black pawn", "b7": "black pawn", "d7": "black pawn", "e7": "black pawn", "f7": "black king", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "c8": "black bishop", "d8": "black queen", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": true, "terminal": false } }, "questions": { "loses_material": { "type": "noul", "instructions": "After the candidate White move, can Black force a net material gain soon? Check legal captures, recaptures and attacks on ALL White pieces. A fair exchange is not a loss; merely being attacked is not enough. Assess from White perspective." }, "allows_mate": { "type": "noul", "instructions": "Can Black checkmate White on its very next move in the after position?" }, "quality": { "type": "score", "instructions": "Evaluate the candidate for White after Black responds strongly. Do not reward a check that sacrifices material without compensation.", "criteria": [ "Losing blunder", "Dubious or wasteful", "Playable", "Good", "Winning or excellent" ] }, "black_reply": { "type": "choice", "instructions": "Play Black in the AFTER position. Choose the strongest reply to punish White, especially hanging pieces or checkmate. Every offered move is legal.", "criteria": { "f7e6": "Ke6", "f7e8": "Ke8", "f7f6": "Kf6" } } } }, "safety": null, "turn": 5, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "loses_material": { "type": "noul", "noul": 0.42 }, "allows_mate": { "type": "noul", "noul": 0.09 }, "quality": { "type": "score", "score": 1.97, "legend": { "0": "Losing blunder", "1": "Dubious or wasteful", "2": "Playable", "3": "Good", "4": "Winning or excellent" }, "probabilities": { "0": 0.13, "1": 0.26, "2": 0.22, "3": 0.28, "4": 0.11 }, "confidence": 0 }, "black_reply": { "type": "choice", "choice": "f7e6", "probabilities": { "f7f6": 0.36, "f7e8": 0.25, "f7e6": 0.39 }, "confidence": 0.08 } }, "usage": { "input_tokens": 1364, "output_tokens": 100, "cost": 5.7288e-05 }, "provider": "TypeSafe" }, "elapsed_s": 1.3934746539453045 }, { "stage": "review", "candidate": "f1c4", "request": { "model": "typesafe/jev-1.13", "state": { "before": { "fen": "rnbq1bnr/1p1ppkpp/2p5/p4p2/3P4/2N1PN2/PPP2PPP/R1BQKB1R w KQ - 0 5", "side_to_move": "white", "pieces": { "a1": "white rook", "c1": "white bishop", "d1": "white queen", "e1": "white king", "f1": "white bishop", "h1": "white rook", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "c3": "white knight", "e3": "white pawn", "f3": "white knight", "d4": "white pawn", "a5": "black pawn", "f5": "black pawn", "c6": "black pawn", "b7": "black pawn", "d7": "black pawn", "e7": "black pawn", "f7": "black king", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "c8": "black bishop", "d8": "black queen", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false }, "candidate": { "uci": "f1c4", "san": "Bc4+" }, "after": { "fen": "rnbq1bnr/1p1ppkpp/2p5/p4p2/2BP4/2N1PN2/PPP2PPP/R1BQK2R b KQ - 1 5", "side_to_move": "black", "pieces": { "a1": "white rook", "c1": "white bishop", "d1": "white queen", "e1": "white king", "h1": "white rook", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "c3": "white knight", "e3": "white pawn", "f3": "white knight", "c4": "white bishop", "d4": "white pawn", "a5": "black pawn", "f5": "black pawn", "c6": "black pawn", "b7": "black pawn", "d7": "black pawn", "e7": "black pawn", "f7": "black king", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "c8": "black bishop", "d8": "black queen", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": true, "terminal": false } }, "questions": { "loses_material": { "type": "noul", "instructions": "After the candidate White move, can Black force a net material gain soon? Check legal captures, recaptures and attacks on ALL White pieces. A fair exchange is not a loss; merely being attacked is not enough. Assess from White perspective." }, "allows_mate": { "type": "noul", "instructions": "Can Black checkmate White on its very next move in the after position?" }, "quality": { "type": "score", "instructions": "Evaluate the candidate for White after Black responds strongly. Do not reward a check that sacrifices material without compensation.", "criteria": [ "Losing blunder", "Dubious or wasteful", "Playable", "Good", "Winning or excellent" ] }, "black_reply": { "type": "choice", "instructions": "Play Black in the AFTER position. Choose the strongest reply to punish White, especially hanging pieces or checkmate. Every offered move is legal.", "criteria": { "d7d5": "d5", "e7e6": "e6", "f7e8": "Ke8", "f7f6": "Kf6", "f7g6": "Kg6" } } } }, "safety": null, "turn": 5, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "loses_material": { "type": "noul", "noul": 0.33 }, "allows_mate": { "type": "noul", "noul": 0.09 }, "quality": { "type": "score", "score": 1.91, "legend": { "0": "Losing blunder", "1": "Dubious or wasteful", "2": "Playable", "3": "Good", "4": "Winning or excellent" }, "probabilities": { "0": 0.12, "1": 0.26, "2": 0.27, "3": 0.28, "4": 0.07 }, "confidence": 0 }, "black_reply": { "type": "choice", "choice": "d7d5", "probabilities": { "f7f6": 0.21, "f7g6": 0.18, "d7d5": 0.31, "f7e8": 0.17, "e7e6": 0.13 }, "confidence": 0.13 } }, "usage": { "input_tokens": 1396, "output_tokens": 120, "cost": 5.8632e-05 }, "provider": "TypeSafe" }, "elapsed_s": 1.5681644038995728 }, { "stage": "review", "candidate": "f1e2", "request": { "model": "typesafe/jev-1.13", "state": { "before": { "fen": "rnbq1bnr/1p1ppkpp/2p5/p4p2/3P4/2N1PN2/PPP2PPP/R1BQKB1R w KQ - 0 5", "side_to_move": "white", "pieces": { "a1": "white rook", "c1": "white bishop", "d1": "white queen", "e1": "white king", "f1": "white bishop", "h1": "white rook", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "c3": "white knight", "e3": "white pawn", "f3": "white knight", "d4": "white pawn", "a5": "black pawn", "f5": "black pawn", "c6": "black pawn", "b7": "black pawn", "d7": "black pawn", "e7": "black pawn", "f7": "black king", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "c8": "black bishop", "d8": "black queen", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false }, "candidate": { "uci": "f1e2", "san": "Be2" }, "after": { "fen": "rnbq1bnr/1p1ppkpp/2p5/p4p2/3P4/2N1PN2/PPP1BPPP/R1BQK2R b KQ - 1 5", "side_to_move": "black", "pieces": { "a1": "white rook", "c1": "white bishop", "d1": "white queen", "e1": "white king", "h1": "white rook", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "e2": "white bishop", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "c3": "white knight", "e3": "white pawn", "f3": "white knight", "d4": "white pawn", "a5": "black pawn", "f5": "black pawn", "c6": "black pawn", "b7": "black pawn", "d7": "black pawn", "e7": "black pawn", "f7": "black king", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "c8": "black bishop", "d8": "black queen", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false } }, "questions": { "loses_material": { "type": "noul", "instructions": "After the candidate White move, can Black force a net material gain soon? Check legal captures, recaptures and attacks on ALL White pieces. A fair exchange is not a loss; merely being attacked is not enough. Assess from White perspective." }, "allows_mate": { "type": "noul", "instructions": "Can Black checkmate White on its very next move in the after position?" }, "quality": { "type": "score", "instructions": "Evaluate the candidate for White after Black responds strongly. Do not reward a check that sacrifices material without compensation.", "criteria": [ "Losing blunder", "Dubious or wasteful", "Playable", "Good", "Winning or excellent" ] }, "black_reply": { "type": "choice", "instructions": "Play Black in the AFTER position. Choose the strongest reply to punish White, especially hanging pieces or checkmate. Every offered move is legal.", "criteria": { "a5a4": "a4", "a8a6": "Ra6", "a8a7": "Ra7", "b7b5": "b5", "b7b6": "b6", "b8a6": "Na6", "c6c5": "c5", "d7d5": "d5", "d7d6": "d6", "d8b6": "Qb6", "d8c7": "Qc7", "d8e8": "Qe8", "e7e5": "e5", "e7e6": "e6", "f5f4": "f4", "f7e6": "Ke6", "f7e8": "Ke8", "f7f6": "Kf6", "f7g6": "Kg6", "g7g5": "g5", "g7g6": "g6", "g8f6": "Nf6", "g8h6": "Nh6", "h7h5": "h5", "h7h6": "h6" } } } }, "safety": null, "turn": 5, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "loses_material": { "type": "noul", "noul": 0.2 }, "allows_mate": { "type": "noul", "noul": 0.08 }, "quality": { "type": "score", "score": 1.85, "legend": { "0": "Losing blunder", "1": "Dubious or wasteful", "2": "Playable", "3": "Good", "4": "Winning or excellent" }, "probabilities": { "0": 0.03, "1": 0.27, "2": 0.53, "3": 0.16, "4": 0.01 }, "confidence": 0.59 }, "black_reply": { "type": "choice", "choice": "d8b6", "probabilities": { "g7g5": 0.01, "b8a6": 0.02, "d8c7": 0.02, "g7g6": 0.01, "c6c5": 0.05, "f7e8": 0.05, "e7e5": 0.11, "f7g6": 0.01, "b7b6": 0.01, "f7e6": 0.05, "f5f4": 0.09, "d8e8": 0.04, "f7f6": 0.02, "a8a7": 0.01, "g8h6": 0.01, "a8a6": 0.01, "a5a4": 0.02, "e7e6": 0.02, "b7b5": 0.03, "h7h6": 0, "h7h5": 0, "d7d6": 0.02, "d7d5": 0.08, "g8f6": 0.1, "d8b6": 0.21 }, "confidence": 0.19 } }, "usage": { "input_tokens": 1719, "output_tokens": 320, "cost": 7.2198e-05 }, "provider": "TypeSafe" }, "elapsed_s": 1.3860223940573633 }, { "stage": "selection", "candidate": null, "request": { "model": "typesafe/jev-1.13", "state": { "position": { "fen": "rnbq1bnr/1p1ppkpp/2p5/p4p2/3P4/2N1PN2/PPP2PPP/R1BQKB1R w KQ - 0 5", "board": "8 r n b q . b n r\n7 . p . p p k p p\n6 . . p . . . . .\n5 p . . . . p . .\n4 . . . P . . . .\n3 . . N . P N . .\n2 P P P . . P P P\n1 R . B Q K B . R\n a b c d e f g h", "legend": "Uppercase = White, lowercase = Black. P pawn, N knight, B bishop, R rook, Q queen, K king; . empty.", "you_play": "White", "in_check": false, "history_uci": [ "g1f3", "a7a5", "b1c3", "f7f5", "d2d4", "e8f7", "e2e3", "c7c6" ], "history_san": [ "Nf3", "a5", "Nc3", "f5", "d4", "Kf7", "e3", "c6" ], "pieces": { "white": { "a1": "rook", "c1": "bishop", "d1": "queen", "e1": "king", "f1": "bishop", "h1": "rook", "a2": "pawn", "b2": "pawn", "c2": "pawn", "f2": "pawn", "g2": "pawn", "h2": "pawn", "c3": "knight", "e3": "pawn", "f3": "knight", "d4": "pawn" }, "black": { "a5": "pawn", "f5": "pawn", "c6": "pawn", "b7": "pawn", "d7": "pawn", "e7": "pawn", "f7": "king", "g7": "pawn", "h7": "pawn", "a8": "rook", "b8": "knight", "c8": "bishop", "d8": "queen", "f8": "bishop", "g8": "knight", "h8": "rook" } } }, "reviews": [ { "uci": "f3e5", "proposal_probability": 0.19, "loss_probability": 0.42, "mate_probability": 0.09, "quality": 1.97, "black_reply": "f7e6", "after_model_reply": { "fen": "rnbq1bnr/1p1pp1pp/2p1k3/p3Np2/3P4/2N1P3/PPP2PPP/R1BQKB1R w KQ - 2 6", "side_to_move": "white", "pieces": { "a1": "white rook", "c1": "white bishop", "d1": "white queen", "e1": "white king", "f1": "white bishop", "h1": "white rook", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "c3": "white knight", "e3": "white pawn", "d4": "white pawn", "a5": "black pawn", "e5": "white knight", "f5": "black pawn", "c6": "black pawn", "e6": "black king", "b7": "black pawn", "d7": "black pawn", "e7": "black pawn", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "c8": "black bishop", "d8": "black queen", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false } }, { "uci": "f1c4", "proposal_probability": 0.14, "loss_probability": 0.33, "mate_probability": 0.09, "quality": 1.91, "black_reply": "d7d5", "after_model_reply": { "fen": "rnbq1bnr/1p2pkpp/2p5/p2p1p2/2BP4/2N1PN2/PPP2PPP/R1BQK2R w KQ - 0 6", "side_to_move": "white", "pieces": { "a1": "white rook", "c1": "white bishop", "d1": "white queen", "e1": "white king", "h1": "white rook", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "c3": "white knight", "e3": "white pawn", "f3": "white knight", "c4": "white bishop", "d4": "white pawn", "a5": "black pawn", "d5": "black pawn", "f5": "black pawn", "c6": "black pawn", "b7": "black pawn", "e7": "black pawn", "f7": "black king", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "c8": "black bishop", "d8": "black queen", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false } }, { "uci": "f1e2", "proposal_probability": 0.07, "loss_probability": 0.2, "mate_probability": 0.08, "quality": 1.85, "black_reply": "d8b6", "after_model_reply": { "fen": "rnb2bnr/1p1ppkpp/1qp5/p4p2/3P4/2N1PN2/PPP1BPPP/R1BQK2R w KQ - 2 6", "side_to_move": "white", "pieces": { "a1": "white rook", "c1": "white bishop", "d1": "white queen", "e1": "white king", "h1": "white rook", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "e2": "white bishop", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "c3": "white knight", "e3": "white pawn", "f3": "white knight", "d4": "white pawn", "a5": "black pawn", "f5": "black pawn", "b6": "black queen", "c6": "black pawn", "b7": "black pawn", "d7": "black pawn", "e7": "black pawn", "f7": "black king", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "c8": "black bishop", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false } } ], "warning": "Reviews and Black replies are fallible predictions of the same Jev model, not verified engine evaluations." }, "questions": { "move": { "type": "choice", "instructions": "Choose the best White move from the reviewed candidates. Independently check each hypothetical Black reply, captures and recaptures. Prefer avoiding material loss, then useful progress and king safety. Reviews may be wrong. A high proposal probability does not prove a good move.", "criteria": { "f3e5": "knight f3 to e5; SAN Ne5+", "f1c4": "bishop f1 to c4; SAN Bc4+", "f1e2": "bishop f1 to e2; SAN Be2" } } } }, "safety": null, "turn": 5, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "move": { "type": "choice", "choice": "f1c4", "probabilities": { "f1c4": 0.42, "f3e5": 0.22, "f1e2": 0.36 }, "confidence": 0.14 } }, "usage": { "input_tokens": 2520, "output_tokens": 50, "cost": 0.00010584 }, "provider": "TypeSafe" }, "elapsed_s": 2.215613885084167 }, { "stage": "proposal", "candidate": null, "request": { "model": "typesafe/jev-1.13", "state": { "fen": "rnbq1bnr/1p2pkpp/2p5/p2p1p2/2BP4/2N1PN2/PPP2PPP/R1BQK2R w KQ - 0 6", "board": "8 r n b q . b n r\n7 . p . . p k p p\n6 . . p . . . . .\n5 p . . p . p . .\n4 . . B P . . . .\n3 . . N . P N . .\n2 P P P . . P P P\n1 R . B Q K . . R\n a b c d e f g h", "legend": "Uppercase = White, lowercase = Black. P pawn, N knight, B bishop, R rook, Q queen, K king; . empty.", "you_play": "White", "in_check": false, "history_uci": [ "g1f3", "a7a5", "b1c3", "f7f5", "d2d4", "e8f7", "e2e3", "c7c6", "f1c4", "d7d5" ], "history_san": [ "Nf3", "a5", "Nc3", "f5", "d4", "Kf7", "e3", "c6", "Bc4+", "d5" ], "pieces": { "white": { "a1": "rook", "c1": "bishop", "d1": "queen", "e1": "king", "h1": "rook", "a2": "pawn", "b2": "pawn", "c2": "pawn", "f2": "pawn", "g2": "pawn", "h2": "pawn", "c3": "knight", "e3": "pawn", "f3": "knight", "c4": "bishop", "d4": "pawn" }, "black": { "a5": "pawn", "d5": "pawn", "f5": "pawn", "c6": "pawn", "b7": "pawn", "e7": "pawn", "f7": "king", "g7": "pawn", "h7": "pawn", "a8": "rook", "b8": "knight", "c8": "bishop", "d8": "queen", "f8": "bishop", "g8": "knight", "h8": "rook" } } }, "questions": { "move": { "type": "choice", "instructions": "Choose one legal White move. You alone evaluate the moves; their list is unranked. Use the explicit piece locations to check the destination and any lines opened by moving. First consider whether Black can capture your queen, rook or minor pieces after the move. Count both sides of an exchange: pawn=1, knight/bishop=3, rook=5, queen=9. Prefer keeping material unless you can establish a concrete profitable continuation. Giving check is NOT compensation for losing a piece. When no tactic works, develop or improve a safe piece. Protect your king and aim for checkmate. Read the history to avoid purposeless repeats when ahead; a draw can be useful when losing. Return one offered UCI move.", "criteria": { "a1b1": "rook a1 to b1; SAN Rb1", "a2a3": "pawn a2 to a3; SAN a3", "a2a4": "pawn a2 to a4; SAN a4", "b2b3": "pawn b2 to b3; SAN b3", "b2b4": "pawn b2 to b4; SAN b4", "c1d2": "bishop c1 to d2; SAN Bd2", "c3a4": "knight c3 to a4; SAN Na4", "c3b1": "knight c3 to b1; SAN Nb1", "c3b5": "knight c3 to b5; SAN Nb5", "c3d5": "knight c3 to d5; captures pawn; SAN Nxd5", "c3e2": "knight c3 to e2; SAN Ne2", "c3e4": "knight c3 to e4; SAN Ne4", "c4a6": "bishop c4 to a6; SAN Ba6", "c4b3": "bishop c4 to b3; SAN Bb3", "c4b5": "bishop c4 to b5; SAN Bb5", "c4d3": "bishop c4 to d3; SAN Bd3", "c4d5": "bishop c4 to d5; captures pawn; SAN Bxd5+", "c4e2": "bishop c4 to e2; SAN Be2", "c4f1": "bishop c4 to f1; SAN Bf1", "d1d2": "queen d1 to d2; SAN Qd2", "d1d3": "queen d1 to d3; SAN Qd3", "d1e2": "queen d1 to e2; SAN Qe2", "e1d2": "king e1 to d2; SAN Kd2", "e1e2": "king e1 to e2; SAN Ke2", "e1f1": "king e1 to f1; SAN Kf1", "e1g1": "king e1 to g1; castling; SAN O-O", "e3e4": "pawn e3 to e4; SAN e4", "f3d2": "knight f3 to d2; SAN Nd2", "f3e5": "knight f3 to e5; SAN Ne5+", "f3g1": "knight f3 to g1; SAN Ng1", "f3g5": "knight f3 to g5; SAN Ng5+", "f3h4": "knight f3 to h4; SAN Nh4", "g2g3": "pawn g2 to g3; SAN g3", "g2g4": "pawn g2 to g4; SAN g4", "h1f1": "rook h1 to f1; SAN Rf1", "h1g1": "rook h1 to g1; SAN Rg1", "h2h3": "pawn h2 to h3; SAN h3", "h2h4": "pawn h2 to h4; SAN h4" } } } }, "safety": null, "turn": 6, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "move": { "type": "choice", "choice": "c4d5", "probabilities": { "f3g5": 0.04, "c4e2": 0.01, "d1d3": 0.01, "c4d3": 0.02, "b2b3": 0, "e3e4": 0.02, "c3d5": 0.11, "e1e2": 0.01, "e1g1": 0.23, "c3b1": 0, "c3e2": 0.01, "a2a4": 0.01, "c4f1": 0, "c4b5": 0.01, "g2g4": 0, "c1d2": 0.02, "c3b5": 0.01, "d1e2": 0.01, "c4b3": 0.01, "f3e5": 0.08, "e1f1": 0.01, "a2a3": 0.01, "h1g1": 0, "a1b1": 0, "e1d2": 0.01, "f3d2": 0, "h1f1": 0.01, "h2h3": 0.01, "h2h4": 0, "b2b4": 0.01, "f3g1": 0, "c4d5": 0.26, "f3h4": 0, "c3a4": 0.01, "c3e4": 0.03, "d1d2": 0.01, "g2g3": 0.01, "c4a6": 0.01 }, "confidence": 0.24 } }, "usage": { "input_tokens": 2032, "output_tokens": 400, "cost": 8.5344e-05 }, "provider": "TypeSafe" }, "elapsed_s": 1.7099284749710932 }, { "stage": "review", "candidate": "c4d5", "request": { "model": "typesafe/jev-1.13", "state": { "before": { "fen": "rnbq1bnr/1p2pkpp/2p5/p2p1p2/2BP4/2N1PN2/PPP2PPP/R1BQK2R w KQ - 0 6", "side_to_move": "white", "pieces": { "a1": "white rook", "c1": "white bishop", "d1": "white queen", "e1": "white king", "h1": "white rook", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "c3": "white knight", "e3": "white pawn", "f3": "white knight", "c4": "white bishop", "d4": "white pawn", "a5": "black pawn", "d5": "black pawn", "f5": "black pawn", "c6": "black pawn", "b7": "black pawn", "e7": "black pawn", "f7": "black king", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "c8": "black bishop", "d8": "black queen", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false }, "candidate": { "uci": "c4d5", "san": "Bxd5+" }, "after": { "fen": "rnbq1bnr/1p2pkpp/2p5/p2B1p2/3P4/2N1PN2/PPP2PPP/R1BQK2R b KQ - 0 6", "side_to_move": "black", "pieces": { "a1": "white rook", "c1": "white bishop", "d1": "white queen", "e1": "white king", "h1": "white rook", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "c3": "white knight", "e3": "white pawn", "f3": "white knight", "d4": "white pawn", "a5": "black pawn", "d5": "white bishop", "f5": "black pawn", "c6": "black pawn", "b7": "black pawn", "e7": "black pawn", "f7": "black king", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "c8": "black bishop", "d8": "black queen", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": true, "terminal": false } }, "questions": { "loses_material": { "type": "noul", "instructions": "After the candidate White move, can Black force a net material gain soon? Check legal captures, recaptures and attacks on ALL White pieces. A fair exchange is not a loss; merely being attacked is not enough. Assess from White perspective." }, "allows_mate": { "type": "noul", "instructions": "Can Black checkmate White on its very next move in the after position?" }, "quality": { "type": "score", "instructions": "Evaluate the candidate for White after Black responds strongly. Do not reward a check that sacrifices material without compensation.", "criteria": [ "Losing blunder", "Dubious or wasteful", "Playable", "Good", "Winning or excellent" ] }, "black_reply": { "type": "choice", "instructions": "Play Black in the AFTER position. Choose the strongest reply to punish White, especially hanging pieces or checkmate. Every offered move is legal.", "criteria": { "c6d5": "cxd5", "c8e6": "Be6", "d8d5": "Qxd5", "e7e6": "e6", "f7e8": "Ke8", "f7f6": "Kf6", "f7g6": "Kg6" } } } }, "safety": null, "turn": 6, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "loses_material": { "type": "noul", "noul": 0.48 }, "allows_mate": { "type": "noul", "noul": 0.09 }, "quality": { "type": "score", "score": 1.77, "legend": { "0": "Losing blunder", "1": "Dubious or wasteful", "2": "Playable", "3": "Good", "4": "Winning or excellent" }, "probabilities": { "0": 0.21, "1": 0.29, "2": 0.15, "3": 0.21, "4": 0.14 }, "confidence": 0 }, "black_reply": { "type": "choice", "choice": "c6d5", "probabilities": { "c8e6": 0.08, "c6d5": 0.37, "e7e6": 0.05, "f7e8": 0.04, "f7g6": 0.06, "d8d5": 0.33, "f7f6": 0.07 }, "confidence": 0.26 } }, "usage": { "input_tokens": 1423, "output_tokens": 140, "cost": 5.9766e-05 }, "provider": "TypeSafe" }, "elapsed_s": 1.7748395410599187 }, { "stage": "review", "candidate": "e1g1", "request": { "model": "typesafe/jev-1.13", "state": { "before": { "fen": "rnbq1bnr/1p2pkpp/2p5/p2p1p2/2BP4/2N1PN2/PPP2PPP/R1BQK2R w KQ - 0 6", "side_to_move": "white", "pieces": { "a1": "white rook", "c1": "white bishop", "d1": "white queen", "e1": "white king", "h1": "white rook", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "c3": "white knight", "e3": "white pawn", "f3": "white knight", "c4": "white bishop", "d4": "white pawn", "a5": "black pawn", "d5": "black pawn", "f5": "black pawn", "c6": "black pawn", "b7": "black pawn", "e7": "black pawn", "f7": "black king", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "c8": "black bishop", "d8": "black queen", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false }, "candidate": { "uci": "e1g1", "san": "O-O" }, "after": { "fen": "rnbq1bnr/1p2pkpp/2p5/p2p1p2/2BP4/2N1PN2/PPP2PPP/R1BQ1RK1 b - - 1 6", "side_to_move": "black", "pieces": { "a1": "white rook", "c1": "white bishop", "d1": "white queen", "f1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "c3": "white knight", "e3": "white pawn", "f3": "white knight", "c4": "white bishop", "d4": "white pawn", "a5": "black pawn", "d5": "black pawn", "f5": "black pawn", "c6": "black pawn", "b7": "black pawn", "e7": "black pawn", "f7": "black king", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "c8": "black bishop", "d8": "black queen", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false } }, "questions": { "loses_material": { "type": "noul", "instructions": "After the candidate White move, can Black force a net material gain soon? Check legal captures, recaptures and attacks on ALL White pieces. A fair exchange is not a loss; merely being attacked is not enough. Assess from White perspective." }, "allows_mate": { "type": "noul", "instructions": "Can Black checkmate White on its very next move in the after position?" }, "quality": { "type": "score", "instructions": "Evaluate the candidate for White after Black responds strongly. Do not reward a check that sacrifices material without compensation.", "criteria": [ "Losing blunder", "Dubious or wasteful", "Playable", "Good", "Winning or excellent" ] }, "black_reply": { "type": "choice", "instructions": "Play Black in the AFTER position. Choose the strongest reply to punish White, especially hanging pieces or checkmate. Every offered move is legal.", "criteria": { "a5a4": "a4", "a8a6": "Ra6", "a8a7": "Ra7", "b7b5": "b5", "b7b6": "b6", "b8a6": "Na6", "b8d7": "Nd7", "c6c5": "c5", "c8d7": "Bd7", "c8e6": "Be6", "d5c4": "dxc4", "d8b6": "Qb6", "d8c7": "Qc7", "d8d6": "Qd6", "d8d7": "Qd7", "d8e8": "Qe8", "e7e5": "e5", "e7e6": "e6", "f5f4": "f4", "f7e6": "Ke6", "f7e8": "Ke8", "f7f6": "Kf6", "f7g6": "Kg6", "g7g5": "g5", "g7g6": "g6", "g8f6": "Nf6", "g8h6": "Nh6", "h7h5": "h5", "h7h6": "h6" } } } }, "safety": null, "turn": 6, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "loses_material": { "type": "noul", "noul": 0.15 }, "allows_mate": { "type": "noul", "noul": 0.06 }, "quality": { "type": "score", "score": 2.49, "legend": { "0": "Losing blunder", "1": "Dubious or wasteful", "2": "Playable", "3": "Good", "4": "Winning or excellent" }, "probabilities": { "0": 0.02, "1": 0.04, "2": 0.38, "3": 0.54, "4": 0.02 }, "confidence": 0.54 }, "black_reply": { "type": "choice", "choice": "d5c4", "probabilities": { "b7b5": 0.02, "a8a7": 0, "f7e6": 0.01, "c8e6": 0.01, "h7h5": 0, "e7e6": 0.01, "c6c5": 0.01, "d5c4": 0.73, "d8b6": 0.06, "d8e8": 0.02, "b8d7": 0.01, "f7e8": 0.01, "h7h6": 0, "g8f6": 0.03, "g7g5": 0, "e7e5": 0.02, "d8d6": 0.01, "f7f6": 0, "a5a4": 0.01, "d8d7": 0, "f5f4": 0.02, "f7g6": 0.01, "g7g6": 0, "a8a6": 0, "g8h6": 0, "d8c7": 0, "c8d7": 0, "b8a6": 0.01, "b7b6": 0 }, "confidence": 0.71 } }, "usage": { "input_tokens": 1786, "output_tokens": 360, "cost": 7.5012e-05 }, "provider": "TypeSafe" }, "elapsed_s": 1.6793769520008937 }, { "stage": "review", "candidate": "c3d5", "request": { "model": "typesafe/jev-1.13", "state": { "before": { "fen": "rnbq1bnr/1p2pkpp/2p5/p2p1p2/2BP4/2N1PN2/PPP2PPP/R1BQK2R w KQ - 0 6", "side_to_move": "white", "pieces": { "a1": "white rook", "c1": "white bishop", "d1": "white queen", "e1": "white king", "h1": "white rook", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "c3": "white knight", "e3": "white pawn", "f3": "white knight", "c4": "white bishop", "d4": "white pawn", "a5": "black pawn", "d5": "black pawn", "f5": "black pawn", "c6": "black pawn", "b7": "black pawn", "e7": "black pawn", "f7": "black king", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "c8": "black bishop", "d8": "black queen", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false }, "candidate": { "uci": "c3d5", "san": "Nxd5" }, "after": { "fen": "rnbq1bnr/1p2pkpp/2p5/p2N1p2/2BP4/4PN2/PPP2PPP/R1BQK2R b KQ - 0 6", "side_to_move": "black", "pieces": { "a1": "white rook", "c1": "white bishop", "d1": "white queen", "e1": "white king", "h1": "white rook", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "e3": "white pawn", "f3": "white knight", "c4": "white bishop", "d4": "white pawn", "a5": "black pawn", "d5": "white knight", "f5": "black pawn", "c6": "black pawn", "b7": "black pawn", "e7": "black pawn", "f7": "black king", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "c8": "black bishop", "d8": "black queen", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false } }, "questions": { "loses_material": { "type": "noul", "instructions": "After the candidate White move, can Black force a net material gain soon? Check legal captures, recaptures and attacks on ALL White pieces. A fair exchange is not a loss; merely being attacked is not enough. Assess from White perspective." }, "allows_mate": { "type": "noul", "instructions": "Can Black checkmate White on its very next move in the after position?" }, "quality": { "type": "score", "instructions": "Evaluate the candidate for White after Black responds strongly. Do not reward a check that sacrifices material without compensation.", "criteria": [ "Losing blunder", "Dubious or wasteful", "Playable", "Good", "Winning or excellent" ] }, "black_reply": { "type": "choice", "instructions": "Play Black in the AFTER position. Choose the strongest reply to punish White, especially hanging pieces or checkmate. Every offered move is legal.", "criteria": { "a5a4": "a4", "a8a6": "Ra6", "a8a7": "Ra7", "b7b5": "b5", "b7b6": "b6", "b8a6": "Na6", "b8d7": "Nd7", "c6c5": "c5", "c6d5": "cxd5", "c8d7": "Bd7", "c8e6": "Be6", "d8b6": "Qb6", "d8c7": "Qc7", "d8d5": "Qxd5", "d8d6": "Qd6", "d8d7": "Qd7", "d8e8": "Qe8", "e7e5": "e5", "e7e6": "e6", "f5f4": "f4", "f7e6": "Ke6", "f7e8": "Ke8", "f7g6": "Kg6", "g7g5": "g5", "g7g6": "g6", "g8f6": "Nf6", "g8h6": "Nh6", "h7h5": "h5", "h7h6": "h6" } } } }, "safety": null, "turn": 6, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "loses_material": { "type": "noul", "noul": 0.5 }, "allows_mate": { "type": "noul", "noul": 0.07 }, "quality": { "type": "score", "score": 2.04, "legend": { "0": "Losing blunder", "1": "Dubious or wasteful", "2": "Playable", "3": "Good", "4": "Winning or excellent" }, "probabilities": { "0": 0.14, "1": 0.23, "2": 0.21, "3": 0.29, "4": 0.13 }, "confidence": 0 }, "black_reply": { "type": "choice", "choice": "d8d5", "probabilities": { "g8f6": 0.01, "a5a4": 0, "d8d7": 0.01, "f7g6": 0, "d8d6": 0.01, "f7e6": 0, "c6c5": 0.01, "c6d5": 0.21000000000000002, "c8d7": 0.01, "b8a6": 0, "a8a6": 0, "d8c7": 0.01, "c8e6": 0.01, "d8d5": 0.62, "b8d7": 0.02, "g7g5": 0, "g7g6": 0, "f5f4": 0, "f7e8": 0.01, "h7h6": 0, "e7e5": 0.01, "b7b6": 0, "b7b5": 0.01, "e7e6": 0, "h7h5": 0, "d8b6": 0.05, "g8h6": 0, "d8e8": 0, "a8a7": 0 }, "confidence": 0.6 } }, "usage": { "input_tokens": 1776, "output_tokens": 360, "cost": 7.4592e-05 }, "provider": "TypeSafe" }, "elapsed_s": 1.355067899916321 }, { "stage": "selection", "candidate": null, "request": { "model": "typesafe/jev-1.13", "state": { "position": { "fen": "rnbq1bnr/1p2pkpp/2p5/p2p1p2/2BP4/2N1PN2/PPP2PPP/R1BQK2R w KQ - 0 6", "board": "8 r n b q . b n r\n7 . p . . p k p p\n6 . . p . . . . .\n5 p . . p . p . .\n4 . . B P . . . .\n3 . . N . P N . .\n2 P P P . . P P P\n1 R . B Q K . . R\n a b c d e f g h", "legend": "Uppercase = White, lowercase = Black. P pawn, N knight, B bishop, R rook, Q queen, K king; . empty.", "you_play": "White", "in_check": false, "history_uci": [ "g1f3", "a7a5", "b1c3", "f7f5", "d2d4", "e8f7", "e2e3", "c7c6", "f1c4", "d7d5" ], "history_san": [ "Nf3", "a5", "Nc3", "f5", "d4", "Kf7", "e3", "c6", "Bc4+", "d5" ], "pieces": { "white": { "a1": "rook", "c1": "bishop", "d1": "queen", "e1": "king", "h1": "rook", "a2": "pawn", "b2": "pawn", "c2": "pawn", "f2": "pawn", "g2": "pawn", "h2": "pawn", "c3": "knight", "e3": "pawn", "f3": "knight", "c4": "bishop", "d4": "pawn" }, "black": { "a5": "pawn", "d5": "pawn", "f5": "pawn", "c6": "pawn", "b7": "pawn", "e7": "pawn", "f7": "king", "g7": "pawn", "h7": "pawn", "a8": "rook", "b8": "knight", "c8": "bishop", "d8": "queen", "f8": "bishop", "g8": "knight", "h8": "rook" } } }, "reviews": [ { "uci": "c4d5", "proposal_probability": 0.26, "loss_probability": 0.48, "mate_probability": 0.09, "quality": 1.77, "black_reply": "c6d5", "after_model_reply": { "fen": "rnbq1bnr/1p2pkpp/8/p2p1p2/3P4/2N1PN2/PPP2PPP/R1BQK2R w KQ - 0 7", "side_to_move": "white", "pieces": { "a1": "white rook", "c1": "white bishop", "d1": "white queen", "e1": "white king", "h1": "white rook", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "c3": "white knight", "e3": "white pawn", "f3": "white knight", "d4": "white pawn", "a5": "black pawn", "d5": "black pawn", "f5": "black pawn", "b7": "black pawn", "e7": "black pawn", "f7": "black king", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "c8": "black bishop", "d8": "black queen", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false } }, { "uci": "e1g1", "proposal_probability": 0.23, "loss_probability": 0.15, "mate_probability": 0.06, "quality": 2.49, "black_reply": "d5c4", "after_model_reply": { "fen": "rnbq1bnr/1p2pkpp/2p5/p4p2/2pP4/2N1PN2/PPP2PPP/R1BQ1RK1 w - - 0 7", "side_to_move": "white", "pieces": { "a1": "white rook", "c1": "white bishop", "d1": "white queen", "f1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "c3": "white knight", "e3": "white pawn", "f3": "white knight", "c4": "black pawn", "d4": "white pawn", "a5": "black pawn", "f5": "black pawn", "c6": "black pawn", "b7": "black pawn", "e7": "black pawn", "f7": "black king", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "c8": "black bishop", "d8": "black queen", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false } }, { "uci": "c3d5", "proposal_probability": 0.11, "loss_probability": 0.5, "mate_probability": 0.07, "quality": 2.04, "black_reply": "d8d5", "after_model_reply": { "fen": "rnb2bnr/1p2pkpp/2p5/p2q1p2/2BP4/4PN2/PPP2PPP/R1BQK2R w KQ - 0 7", "side_to_move": "white", "pieces": { "a1": "white rook", "c1": "white bishop", "d1": "white queen", "e1": "white king", "h1": "white rook", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "e3": "white pawn", "f3": "white knight", "c4": "white bishop", "d4": "white pawn", "a5": "black pawn", "d5": "black queen", "f5": "black pawn", "c6": "black pawn", "b7": "black pawn", "e7": "black pawn", "f7": "black king", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "c8": "black bishop", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false } } ], "warning": "Reviews and Black replies are fallible predictions of the same Jev model, not verified engine evaluations." }, "questions": { "move": { "type": "choice", "instructions": "Choose the best White move from the reviewed candidates. Independently check each hypothetical Black reply, captures and recaptures. Prefer avoiding material loss, then useful progress and king safety. Reviews may be wrong. A high proposal probability does not prove a good move.", "criteria": { "c4d5": "bishop c4 to d5; captures pawn; SAN Bxd5+", "e1g1": "king e1 to g1; castling; SAN O-O", "c3d5": "knight c3 to d5; captures pawn; SAN Nxd5" } } } }, "safety": null, "turn": 6, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "move": { "type": "choice", "choice": "e1g1", "probabilities": { "c4d5": 0.08, "e1g1": 0.87, "c3d5": 0.05 }, "confidence": 0.8 } }, "usage": { "input_tokens": 2498, "output_tokens": 50, "cost": 0.000104916 }, "provider": "TypeSafe" }, "elapsed_s": 1.4353600289905444 }, { "stage": "proposal", "candidate": null, "request": { "model": "typesafe/jev-1.13", "state": { "fen": "rnbq1bnr/1p2pkpp/2p5/p4p2/2pP4/2N1PN2/PPP2PPP/R1BQ1RK1 w - - 0 7", "board": "8 r n b q . b n r\n7 . p . . p k p p\n6 . . p . . . . .\n5 p . . . . p . .\n4 . . p P . . . .\n3 . . N . P N . .\n2 P P P . . P P P\n1 R . B Q . R K .\n a b c d e f g h", "legend": "Uppercase = White, lowercase = Black. P pawn, N knight, B bishop, R rook, Q queen, K king; . empty.", "you_play": "White", "in_check": false, "history_uci": [ "g1f3", "a7a5", "b1c3", "f7f5", "d2d4", "e8f7", "e2e3", "c7c6", "f1c4", "d7d5", "e1g1", "d5c4" ], "history_san": [ "Nf3", "a5", "Nc3", "f5", "d4", "Kf7", "e3", "c6", "Bc4+", "d5", "O-O", "dxc4" ], "pieces": { "white": { "a1": "rook", "c1": "bishop", "d1": "queen", "f1": "rook", "g1": "king", "a2": "pawn", "b2": "pawn", "c2": "pawn", "f2": "pawn", "g2": "pawn", "h2": "pawn", "c3": "knight", "e3": "pawn", "f3": "knight", "d4": "pawn" }, "black": { "c4": "pawn", "a5": "pawn", "f5": "pawn", "c6": "pawn", "b7": "pawn", "e7": "pawn", "f7": "king", "g7": "pawn", "h7": "pawn", "a8": "rook", "b8": "knight", "c8": "bishop", "d8": "queen", "f8": "bishop", "g8": "knight", "h8": "rook" } } }, "questions": { "move": { "type": "choice", "instructions": "Choose one legal White move. You alone evaluate the moves; their list is unranked. Use the explicit piece locations to check the destination and any lines opened by moving. First consider whether Black can capture your queen, rook or minor pieces after the move. Count both sides of an exchange: pawn=1, knight/bishop=3, rook=5, queen=9. Prefer keeping material unless you can establish a concrete profitable continuation. Giving check is NOT compensation for losing a piece. When no tactic works, develop or improve a safe piece. Protect your king and aim for checkmate. Read the history to avoid purposeless repeats when ahead; a draw can be useful when losing. Return one offered UCI move.", "criteria": { "a1b1": "rook a1 to b1; SAN Rb1", "a2a3": "pawn a2 to a3; SAN a3", "a2a4": "pawn a2 to a4; SAN a4", "b2b3": "pawn b2 to b3; SAN b3", "b2b4": "pawn b2 to b4; SAN b4", "c1d2": "bishop c1 to d2; SAN Bd2", "c3a4": "knight c3 to a4; SAN Na4", "c3b1": "knight c3 to b1; SAN Nb1", "c3b5": "knight c3 to b5; SAN Nb5", "c3d5": "knight c3 to d5; SAN Nd5", "c3e2": "knight c3 to e2; SAN Ne2", "c3e4": "knight c3 to e4; SAN Ne4", "d1d2": "queen d1 to d2; SAN Qd2", "d1d3": "queen d1 to d3; SAN Qd3", "d1e1": "queen d1 to e1; SAN Qe1", "d1e2": "queen d1 to e2; SAN Qe2", "d4d5": "pawn d4 to d5; SAN d5", "e3e4": "pawn e3 to e4; SAN e4", "f1e1": "rook f1 to e1; SAN Re1", "f3d2": "knight f3 to d2; SAN Nd2", "f3e1": "knight f3 to e1; SAN Ne1", "f3e5": "knight f3 to e5; SAN Ne5+", "f3g5": "knight f3 to g5; SAN Ng5+", "f3h4": "knight f3 to h4; SAN Nh4", "g1h1": "king g1 to h1; SAN Kh1", "g2g3": "pawn g2 to g3; SAN g3", "g2g4": "pawn g2 to g4; SAN g4", "h2h3": "pawn h2 to h3; SAN h3", "h2h4": "pawn h2 to h4; SAN h4" } } } }, "safety": null, "turn": 7, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "move": { "type": "choice", "choice": "f3e5", "probabilities": { "h2h4": 0, "f3g5": 0.08, "f3e5": 0.24000000000000002, "c3b5": 0.04, "b2b3": 0.03, "g2g3": 0.02, "f3d2": 0.02, "d4d5": 0.04, "a1b1": 0.01, "g1h1": 0.01, "c3e4": 0.07, "a2a4": 0.02, "f1e1": 0.02, "a2a3": 0.01, "d1e2": 0.04, "c3b1": 0, "d1d2": 0.02, "c3d5": 0.07, "c3a4": 0.03, "d1e1": 0.01, "f3e1": 0.01, "c1d2": 0.04, "c3e2": 0.02, "f3h4": 0.01, "h2h3": 0.01, "b2b4": 0.03, "g2g4": 0.01, "d1d3": 0.04, "e3e4": 0.05 }, "confidence": 0.2 } }, "usage": { "input_tokens": 1812, "output_tokens": 310, "cost": 7.6104e-05 }, "provider": "TypeSafe" }, "elapsed_s": 1.4248763549840078 }, { "stage": "review", "candidate": "f3e5", "request": { "model": "typesafe/jev-1.13", "state": { "before": { "fen": "rnbq1bnr/1p2pkpp/2p5/p4p2/2pP4/2N1PN2/PPP2PPP/R1BQ1RK1 w - - 0 7", "side_to_move": "white", "pieces": { "a1": "white rook", "c1": "white bishop", "d1": "white queen", "f1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "c3": "white knight", "e3": "white pawn", "f3": "white knight", "c4": "black pawn", "d4": "white pawn", "a5": "black pawn", "f5": "black pawn", "c6": "black pawn", "b7": "black pawn", "e7": "black pawn", "f7": "black king", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "c8": "black bishop", "d8": "black queen", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false }, "candidate": { "uci": "f3e5", "san": "Ne5+" }, "after": { "fen": "rnbq1bnr/1p2pkpp/2p5/p3Np2/2pP4/2N1P3/PPP2PPP/R1BQ1RK1 b - - 1 7", "side_to_move": "black", "pieces": { "a1": "white rook", "c1": "white bishop", "d1": "white queen", "f1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "c3": "white knight", "e3": "white pawn", "c4": "black pawn", "d4": "white pawn", "a5": "black pawn", "e5": "white knight", "f5": "black pawn", "c6": "black pawn", "b7": "black pawn", "e7": "black pawn", "f7": "black king", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "c8": "black bishop", "d8": "black queen", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": true, "terminal": false } }, "questions": { "loses_material": { "type": "noul", "instructions": "After the candidate White move, can Black force a net material gain soon? Check legal captures, recaptures and attacks on ALL White pieces. A fair exchange is not a loss; merely being attacked is not enough. Assess from White perspective." }, "allows_mate": { "type": "noul", "instructions": "Can Black checkmate White on its very next move in the after position?" }, "quality": { "type": "score", "instructions": "Evaluate the candidate for White after Black responds strongly. Do not reward a check that sacrifices material without compensation.", "criteria": [ "Losing blunder", "Dubious or wasteful", "Playable", "Good", "Winning or excellent" ] }, "black_reply": { "type": "choice", "instructions": "Play Black in the AFTER position. Choose the strongest reply to punish White, especially hanging pieces or checkmate. Every offered move is legal.", "criteria": { "f7e6": "Ke6", "f7e8": "Ke8", "f7f6": "Kf6" } } } }, "safety": null, "turn": 7, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "loses_material": { "type": "noul", "noul": 0.4 }, "allows_mate": { "type": "noul", "noul": 0.08 }, "quality": { "type": "score", "score": 1.91, "legend": { "0": "Losing blunder", "1": "Dubious or wasteful", "2": "Playable", "3": "Good", "4": "Winning or excellent" }, "probabilities": { "0": 0.14, "1": 0.27, "2": 0.22, "3": 0.27, "4": 0.1 }, "confidence": 0.01 }, "black_reply": { "type": "choice", "choice": "f7f6", "probabilities": { "f7f6": 0.38, "f7e6": 0.37, "f7e8": 0.25 }, "confidence": 0.07 } }, "usage": { "input_tokens": 1342, "output_tokens": 100, "cost": 5.6364e-05 }, "provider": "TypeSafe" }, "elapsed_s": 1.3866586670046672 }, { "stage": "review", "candidate": "f3g5", "request": { "model": "typesafe/jev-1.13", "state": { "before": { "fen": "rnbq1bnr/1p2pkpp/2p5/p4p2/2pP4/2N1PN2/PPP2PPP/R1BQ1RK1 w - - 0 7", "side_to_move": "white", "pieces": { "a1": "white rook", "c1": "white bishop", "d1": "white queen", "f1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "c3": "white knight", "e3": "white pawn", "f3": "white knight", "c4": "black pawn", "d4": "white pawn", "a5": "black pawn", "f5": "black pawn", "c6": "black pawn", "b7": "black pawn", "e7": "black pawn", "f7": "black king", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "c8": "black bishop", "d8": "black queen", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false }, "candidate": { "uci": "f3g5", "san": "Ng5+" }, "after": { "fen": "rnbq1bnr/1p2pkpp/2p5/p4pN1/2pP4/2N1P3/PPP2PPP/R1BQ1RK1 b - - 1 7", "side_to_move": "black", "pieces": { "a1": "white rook", "c1": "white bishop", "d1": "white queen", "f1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "c3": "white knight", "e3": "white pawn", "c4": "black pawn", "d4": "white pawn", "a5": "black pawn", "f5": "black pawn", "g5": "white knight", "c6": "black pawn", "b7": "black pawn", "e7": "black pawn", "f7": "black king", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "c8": "black bishop", "d8": "black queen", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": true, "terminal": false } }, "questions": { "loses_material": { "type": "noul", "instructions": "After the candidate White move, can Black force a net material gain soon? Check legal captures, recaptures and attacks on ALL White pieces. A fair exchange is not a loss; merely being attacked is not enough. Assess from White perspective." }, "allows_mate": { "type": "noul", "instructions": "Can Black checkmate White on its very next move in the after position?" }, "quality": { "type": "score", "instructions": "Evaluate the candidate for White after Black responds strongly. Do not reward a check that sacrifices material without compensation.", "criteria": [ "Losing blunder", "Dubious or wasteful", "Playable", "Good", "Winning or excellent" ] }, "black_reply": { "type": "choice", "instructions": "Play Black in the AFTER position. Choose the strongest reply to punish White, especially hanging pieces or checkmate. Every offered move is legal.", "criteria": { "f7e8": "Ke8", "f7f6": "Kf6", "f7g6": "Kg6" } } } }, "safety": null, "turn": 7, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "loses_material": { "type": "noul", "noul": 0.38 }, "allows_mate": { "type": "noul", "noul": 0.08 }, "quality": { "type": "score", "score": 1.68, "legend": { "0": "Losing blunder", "1": "Dubious or wasteful", "2": "Playable", "3": "Good", "4": "Winning or excellent" }, "probabilities": { "0": 0.17, "1": 0.34, "2": 0.21, "3": 0.21, "4": 0.07 }, "confidence": 0.16 }, "black_reply": { "type": "choice", "choice": "f7f6", "probabilities": { "f7g6": 0.37, "f7f6": 0.4, "f7e8": 0.23 }, "confidence": 0.1 } }, "usage": { "input_tokens": 1343, "output_tokens": 100, "cost": 5.6406e-05 }, "provider": "TypeSafe" }, "elapsed_s": 1.3988880929537117 }, { "stage": "review", "candidate": "c3d5", "request": { "model": "typesafe/jev-1.13", "state": { "before": { "fen": "rnbq1bnr/1p2pkpp/2p5/p4p2/2pP4/2N1PN2/PPP2PPP/R1BQ1RK1 w - - 0 7", "side_to_move": "white", "pieces": { "a1": "white rook", "c1": "white bishop", "d1": "white queen", "f1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "c3": "white knight", "e3": "white pawn", "f3": "white knight", "c4": "black pawn", "d4": "white pawn", "a5": "black pawn", "f5": "black pawn", "c6": "black pawn", "b7": "black pawn", "e7": "black pawn", "f7": "black king", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "c8": "black bishop", "d8": "black queen", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false }, "candidate": { "uci": "c3d5", "san": "Nd5" }, "after": { "fen": "rnbq1bnr/1p2pkpp/2p5/p2N1p2/2pP4/4PN2/PPP2PPP/R1BQ1RK1 b - - 1 7", "side_to_move": "black", "pieces": { "a1": "white rook", "c1": "white bishop", "d1": "white queen", "f1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "e3": "white pawn", "f3": "white knight", "c4": "black pawn", "d4": "white pawn", "a5": "black pawn", "d5": "white knight", "f5": "black pawn", "c6": "black pawn", "b7": "black pawn", "e7": "black pawn", "f7": "black king", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "c8": "black bishop", "d8": "black queen", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false } }, "questions": { "loses_material": { "type": "noul", "instructions": "After the candidate White move, can Black force a net material gain soon? Check legal captures, recaptures and attacks on ALL White pieces. A fair exchange is not a loss; merely being attacked is not enough. Assess from White perspective." }, "allows_mate": { "type": "noul", "instructions": "Can Black checkmate White on its very next move in the after position?" }, "quality": { "type": "score", "instructions": "Evaluate the candidate for White after Black responds strongly. Do not reward a check that sacrifices material without compensation.", "criteria": [ "Losing blunder", "Dubious or wasteful", "Playable", "Good", "Winning or excellent" ] }, "black_reply": { "type": "choice", "instructions": "Play Black in the AFTER position. Choose the strongest reply to punish White, especially hanging pieces or checkmate. Every offered move is legal.", "criteria": { "a5a4": "a4", "a8a6": "Ra6", "a8a7": "Ra7", "b7b5": "b5", "b7b6": "b6", "b8a6": "Na6", "b8d7": "Nd7", "c4c3": "c3", "c6c5": "c5", "c6d5": "cxd5", "c8d7": "Bd7", "c8e6": "Be6", "d8b6": "Qb6", "d8c7": "Qc7", "d8d5": "Qxd5", "d8d6": "Qd6", "d8d7": "Qd7", "d8e8": "Qe8", "e7e5": "e5", "e7e6": "e6", "f5f4": "f4", "f7e6": "Ke6", "f7e8": "Ke8", "f7g6": "Kg6", "g7g5": "g5", "g7g6": "g6", "g8f6": "Nf6", "g8h6": "Nh6", "h7h5": "h5", "h7h6": "h6" } } } }, "safety": null, "turn": 7, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "loses_material": { "type": "noul", "noul": 0.35 }, "allows_mate": { "type": "noul", "noul": 0.06 }, "quality": { "type": "score", "score": 2.01, "legend": { "0": "Losing blunder", "1": "Dubious or wasteful", "2": "Playable", "3": "Good", "4": "Winning or excellent" }, "probabilities": { "0": 0.12, "1": 0.22, "2": 0.26, "3": 0.33, "4": 0.07 }, "confidence": 0.06 }, "black_reply": { "type": "choice", "choice": "d8d5", "probabilities": { "c4c3": 0.02, "g8f6": 0.01, "h7h6": 0, "b7b6": 0, "d8b6": 0.04, "c8d7": 0.01, "f7g6": 0, "c6d5": 0.3, "b7b5": 0.01, "g7g6": 0, "g8h6": 0, "f7e8": 0, "e7e6": 0.01, "d8e8": 0, "c8e6": 0.01, "g7g5": 0, "b8a6": 0, "e7e5": 0.01, "d8c7": 0, "b8d7": 0.01, "a8a7": 0, "d8d6": 0.01, "h7h5": 0, "a8a6": 0, "d8d5": 0.51, "a5a4": 0, "d8d7": 0.01, "f7e6": 0.01, "c6c5": 0.03, "f5f4": 0 }, "confidence": 0.49 } }, "usage": { "input_tokens": 1779, "output_tokens": 370, "cost": 7.4718e-05 }, "provider": "TypeSafe" }, "elapsed_s": 1.5853621809510514 }, { "stage": "selection", "candidate": null, "request": { "model": "typesafe/jev-1.13", "state": { "position": { "fen": "rnbq1bnr/1p2pkpp/2p5/p4p2/2pP4/2N1PN2/PPP2PPP/R1BQ1RK1 w - - 0 7", "board": "8 r n b q . b n r\n7 . p . . p k p p\n6 . . p . . . . .\n5 p . . . . p . .\n4 . . p P . . . .\n3 . . N . P N . .\n2 P P P . . P P P\n1 R . B Q . R K .\n a b c d e f g h", "legend": "Uppercase = White, lowercase = Black. P pawn, N knight, B bishop, R rook, Q queen, K king; . empty.", "you_play": "White", "in_check": false, "history_uci": [ "g1f3", "a7a5", "b1c3", "f7f5", "d2d4", "e8f7", "e2e3", "c7c6", "f1c4", "d7d5", "e1g1", "d5c4" ], "history_san": [ "Nf3", "a5", "Nc3", "f5", "d4", "Kf7", "e3", "c6", "Bc4+", "d5", "O-O", "dxc4" ], "pieces": { "white": { "a1": "rook", "c1": "bishop", "d1": "queen", "f1": "rook", "g1": "king", "a2": "pawn", "b2": "pawn", "c2": "pawn", "f2": "pawn", "g2": "pawn", "h2": "pawn", "c3": "knight", "e3": "pawn", "f3": "knight", "d4": "pawn" }, "black": { "c4": "pawn", "a5": "pawn", "f5": "pawn", "c6": "pawn", "b7": "pawn", "e7": "pawn", "f7": "king", "g7": "pawn", "h7": "pawn", "a8": "rook", "b8": "knight", "c8": "bishop", "d8": "queen", "f8": "bishop", "g8": "knight", "h8": "rook" } } }, "reviews": [ { "uci": "f3e5", "proposal_probability": 0.24000000000000002, "loss_probability": 0.4, "mate_probability": 0.08, "quality": 1.91, "black_reply": "f7f6", "after_model_reply": { "fen": "rnbq1bnr/1p2p1pp/2p2k2/p3Np2/2pP4/2N1P3/PPP2PPP/R1BQ1RK1 w - - 2 8", "side_to_move": "white", "pieces": { "a1": "white rook", "c1": "white bishop", "d1": "white queen", "f1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "c3": "white knight", "e3": "white pawn", "c4": "black pawn", "d4": "white pawn", "a5": "black pawn", "e5": "white knight", "f5": "black pawn", "c6": "black pawn", "f6": "black king", "b7": "black pawn", "e7": "black pawn", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "c8": "black bishop", "d8": "black queen", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false } }, { "uci": "f3g5", "proposal_probability": 0.08, "loss_probability": 0.38, "mate_probability": 0.08, "quality": 1.68, "black_reply": "f7f6", "after_model_reply": { "fen": "rnbq1bnr/1p2p1pp/2p2k2/p4pN1/2pP4/2N1P3/PPP2PPP/R1BQ1RK1 w - - 2 8", "side_to_move": "white", "pieces": { "a1": "white rook", "c1": "white bishop", "d1": "white queen", "f1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "c3": "white knight", "e3": "white pawn", "c4": "black pawn", "d4": "white pawn", "a5": "black pawn", "f5": "black pawn", "g5": "white knight", "c6": "black pawn", "f6": "black king", "b7": "black pawn", "e7": "black pawn", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "c8": "black bishop", "d8": "black queen", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false } }, { "uci": "c3d5", "proposal_probability": 0.07, "loss_probability": 0.35, "mate_probability": 0.06, "quality": 2.01, "black_reply": "d8d5", "after_model_reply": { "fen": "rnb2bnr/1p2pkpp/2p5/p2q1p2/2pP4/4PN2/PPP2PPP/R1BQ1RK1 w - - 0 8", "side_to_move": "white", "pieces": { "a1": "white rook", "c1": "white bishop", "d1": "white queen", "f1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "e3": "white pawn", "f3": "white knight", "c4": "black pawn", "d4": "white pawn", "a5": "black pawn", "d5": "black queen", "f5": "black pawn", "c6": "black pawn", "b7": "black pawn", "e7": "black pawn", "f7": "black king", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "c8": "black bishop", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false } } ], "warning": "Reviews and Black replies are fallible predictions of the same Jev model, not verified engine evaluations." }, "questions": { "move": { "type": "choice", "instructions": "Choose the best White move from the reviewed candidates. Independently check each hypothetical Black reply, captures and recaptures. Prefer avoiding material loss, then useful progress and king safety. Reviews may be wrong. A high proposal probability does not prove a good move.", "criteria": { "f3e5": "knight f3 to e5; SAN Ne5+", "f3g5": "knight f3 to g5; SAN Ng5+", "c3d5": "knight c3 to d5; SAN Nd5" } } } }, "safety": null, "turn": 7, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "move": { "type": "choice", "choice": "f3e5", "probabilities": { "c3d5": 0.3, "f3e5": 0.51, "f3g5": 0.19 }, "confidence": 0.27 } }, "usage": { "input_tokens": 2535, "output_tokens": 50, "cost": 0.00010647 }, "provider": "TypeSafe" }, "elapsed_s": 1.6624234620248899 }, { "stage": "proposal", "candidate": null, "request": { "model": "typesafe/jev-1.13", "state": { "fen": "rnbq1bnr/1p2p1pp/2p2k2/p3Np2/2pP4/2N1P3/PPP2PPP/R1BQ1RK1 w - - 2 8", "board": "8 r n b q . b n r\n7 . p . . p . p p\n6 . . p . . k . .\n5 p . . . N p . .\n4 . . p P . . . .\n3 . . N . P . . .\n2 P P P . . P P P\n1 R . B Q . R K .\n a b c d e f g h", "legend": "Uppercase = White, lowercase = Black. P pawn, N knight, B bishop, R rook, Q queen, K king; . empty.", "you_play": "White", "in_check": false, "history_uci": [ "g1f3", "a7a5", "b1c3", "f7f5", "d2d4", "e8f7", "e2e3", "c7c6", "f1c4", "d7d5", "e1g1", "d5c4", "f3e5", "f7f6" ], "history_san": [ "Nf3", "a5", "Nc3", "f5", "d4", "Kf7", "e3", "c6", "Bc4+", "d5", "O-O", "dxc4", "Ne5+", "Kf6" ], "pieces": { "white": { "a1": "rook", "c1": "bishop", "d1": "queen", "f1": "rook", "g1": "king", "a2": "pawn", "b2": "pawn", "c2": "pawn", "f2": "pawn", "g2": "pawn", "h2": "pawn", "c3": "knight", "e3": "pawn", "d4": "pawn", "e5": "knight" }, "black": { "c4": "pawn", "a5": "pawn", "f5": "pawn", "c6": "pawn", "f6": "king", "b7": "pawn", "e7": "pawn", "g7": "pawn", "h7": "pawn", "a8": "rook", "b8": "knight", "c8": "bishop", "d8": "queen", "f8": "bishop", "g8": "knight", "h8": "rook" } } }, "questions": { "move": { "type": "choice", "instructions": "Choose one legal White move. You alone evaluate the moves; their list is unranked. Use the explicit piece locations to check the destination and any lines opened by moving. First consider whether Black can capture your queen, rook or minor pieces after the move. Count both sides of an exchange: pawn=1, knight/bishop=3, rook=5, queen=9. Prefer keeping material unless you can establish a concrete profitable continuation. Giving check is NOT compensation for losing a piece. When no tactic works, develop or improve a safe piece. Protect your king and aim for checkmate. Read the history to avoid purposeless repeats when ahead; a draw can be useful when losing. Return one offered UCI move.", "criteria": { "a1b1": "rook a1 to b1; SAN Rb1", "a2a3": "pawn a2 to a3; SAN a3", "a2a4": "pawn a2 to a4; SAN a4", "b2b3": "pawn b2 to b3; SAN b3", "b2b4": "pawn b2 to b4; SAN b4", "c1d2": "bishop c1 to d2; SAN Bd2", "c3a4": "knight c3 to a4; SAN Na4", "c3b1": "knight c3 to b1; SAN Nb1", "c3b5": "knight c3 to b5; SAN Nb5", "c3d5": "knight c3 to d5; SAN Nd5+", "c3e2": "knight c3 to e2; SAN Ne2", "c3e4": "knight c3 to e4; SAN Ne4+", "d1d2": "queen d1 to d2; SAN Qd2", "d1d3": "queen d1 to d3; SAN Qd3", "d1e1": "queen d1 to e1; SAN Qe1", "d1e2": "queen d1 to e2; SAN Qe2", "d1f3": "queen d1 to f3; SAN Qf3", "d1g4": "queen d1 to g4; SAN Qg4", "d1h5": "queen d1 to h5; SAN Qh5", "d4d5": "pawn d4 to d5; SAN d5", "e3e4": "pawn e3 to e4; SAN e4", "e5c4": "knight e5 to c4; captures pawn; SAN Nxc4", "e5c6": "knight e5 to c6; captures pawn; SAN Nxc6", "e5d3": "knight e5 to d3; SAN Nd3", "e5d7": "knight e5 to d7; SAN Nd7+", "e5f3": "knight e5 to f3; SAN Nf3", "e5f7": "knight e5 to f7; SAN Nf7", "e5g4": "knight e5 to g4; SAN Ng4+", "e5g6": "knight e5 to g6; SAN Ng6", "f1e1": "rook f1 to e1; SAN Re1", "f2f3": "pawn f2 to f3; SAN f3", "f2f4": "pawn f2 to f4; SAN f4", "g1h1": "king g1 to h1; SAN Kh1", "g2g3": "pawn g2 to g3; SAN g3", "g2g4": "pawn g2 to g4; SAN g4", "h2h3": "pawn h2 to h3; SAN h3", "h2h4": "pawn h2 to h4; SAN h4" } } } }, "safety": null, "turn": 8, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "move": { "type": "choice", "choice": "e5c4", "probabilities": { "c3e2": 0.01, "c1d2": 0.01, "f2f3": 0.01, "f2f4": 0, "d1f3": 0.01, "b2b3": 0.01, "c3b5": 0.01, "g1h1": 0.01, "e5c6": 0.08, "a2a3": 0.01, "b2b4": 0.01, "e5c4": 0.25, "e3e4": 0.02, "c3a4": 0.01, "e5g6": 0.01, "a2a4": 0.01, "g2g4": 0.01, "a1b1": 0.01, "d1g4": 0.02, "d1d3": 0.02, "c3b1": 0, "e5d3": 0.02, "c3d5": 0.06, "d1h5": 0.02, "g2g3": 0.01, "h2h4": 0, "h2h3": 0, "f1e1": 0.01, "e5d7": 0.08, "d1e1": 0, "d1e2": 0.02, "d1d2": 0.01, "e5g4": 0.06, "e5f3": 0.02, "c3e4": 0.09, "d4d5": 0.02, "e5f7": 0.05 }, "confidence": 0.24 } }, "usage": { "input_tokens": 2051, "output_tokens": 390, "cost": 8.6142e-05 }, "provider": "TypeSafe" }, "elapsed_s": 1.8032297340687364 }, { "stage": "review", "candidate": "e5c4", "request": { "model": "typesafe/jev-1.13", "state": { "before": { "fen": "rnbq1bnr/1p2p1pp/2p2k2/p3Np2/2pP4/2N1P3/PPP2PPP/R1BQ1RK1 w - - 2 8", "side_to_move": "white", "pieces": { "a1": "white rook", "c1": "white bishop", "d1": "white queen", "f1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "c3": "white knight", "e3": "white pawn", "c4": "black pawn", "d4": "white pawn", "a5": "black pawn", "e5": "white knight", "f5": "black pawn", "c6": "black pawn", "f6": "black king", "b7": "black pawn", "e7": "black pawn", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "c8": "black bishop", "d8": "black queen", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false }, "candidate": { "uci": "e5c4", "san": "Nxc4" }, "after": { "fen": "rnbq1bnr/1p2p1pp/2p2k2/p4p2/2NP4/2N1P3/PPP2PPP/R1BQ1RK1 b - - 0 8", "side_to_move": "black", "pieces": { "a1": "white rook", "c1": "white bishop", "d1": "white queen", "f1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "c3": "white knight", "e3": "white pawn", "c4": "white knight", "d4": "white pawn", "a5": "black pawn", "f5": "black pawn", "c6": "black pawn", "f6": "black king", "b7": "black pawn", "e7": "black pawn", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "c8": "black bishop", "d8": "black queen", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false } }, "questions": { "loses_material": { "type": "noul", "instructions": "After the candidate White move, can Black force a net material gain soon? Check legal captures, recaptures and attacks on ALL White pieces. A fair exchange is not a loss; merely being attacked is not enough. Assess from White perspective." }, "allows_mate": { "type": "noul", "instructions": "Can Black checkmate White on its very next move in the after position?" }, "quality": { "type": "score", "instructions": "Evaluate the candidate for White after Black responds strongly. Do not reward a check that sacrifices material without compensation.", "criteria": [ "Losing blunder", "Dubious or wasteful", "Playable", "Good", "Winning or excellent" ] }, "black_reply": { "type": "choice", "instructions": "Play Black in the AFTER position. Choose the strongest reply to punish White, especially hanging pieces or checkmate. Every offered move is legal.", "criteria": { "a5a4": "a4", "a8a6": "Ra6", "a8a7": "Ra7", "b7b5": "b5", "b7b6": "b6", "b8a6": "Na6", "b8d7": "Nd7", "c6c5": "c5", "c8d7": "Bd7", "c8e6": "Be6", "d8b6": "Qb6", "d8c7": "Qc7", "d8d4": "Qxd4", "d8d5": "Qd5", "d8d6": "Qd6", "d8d7": "Qd7", "d8e8": "Qe8", "e7e5": "e5", "e7e6": "e6", "f5f4": "f4", "f6e6": "Ke6", "f6f7": "Kf7", "f6g5": "Kg5", "f6g6": "Kg6", "g7g5": "g5", "g7g6": "g6", "g8h6": "Nh6", "h7h5": "h5", "h7h6": "h6" } } } }, "safety": null, "turn": 8, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "loses_material": { "type": "noul", "noul": 0.44 }, "allows_mate": { "type": "noul", "noul": 0.09 }, "quality": { "type": "score", "score": 2.31, "legend": { "0": "Losing blunder", "1": "Dubious or wasteful", "2": "Playable", "3": "Good", "4": "Winning or excellent" }, "probabilities": { "0": 0.1, "1": 0.18, "2": 0.19, "3": 0.38, "4": 0.15 }, "confidence": 0.18 }, "black_reply": { "type": "choice", "choice": "d8d4", "probabilities": { "a8a6": 0, "c8e6": 0.02, "f6f7": 0.01, "c8d7": 0.01, "b7b6": 0, "g7g6": 0, "d8c7": 0.01, "h7h5": 0, "d8b6": 0.1, "b8a6": 0.01, "a5a4": 0, "b7b5": 0.02, "e7e5": 0.01, "f6g6": 0.01, "c6c5": 0.03, "h7h6": 0, "d8d4": 0.62, "d8d5": 0.06, "g7g5": 0, "f6g5": 0.02, "b8d7": 0.02, "d8d7": 0.01, "d8d6": 0.01, "d8e8": 0, "a8a7": 0, "e7e6": 0, "f6e6": 0.01, "f5f4": 0.01, "g8h6": 0.01 }, "confidence": 0.6 } }, "usage": { "input_tokens": 1759, "output_tokens": 360, "cost": 7.3878e-05 }, "provider": "TypeSafe" }, "elapsed_s": 1.479120853007771 }, { "stage": "review", "candidate": "c3e4", "request": { "model": "typesafe/jev-1.13", "state": { "before": { "fen": "rnbq1bnr/1p2p1pp/2p2k2/p3Np2/2pP4/2N1P3/PPP2PPP/R1BQ1RK1 w - - 2 8", "side_to_move": "white", "pieces": { "a1": "white rook", "c1": "white bishop", "d1": "white queen", "f1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "c3": "white knight", "e3": "white pawn", "c4": "black pawn", "d4": "white pawn", "a5": "black pawn", "e5": "white knight", "f5": "black pawn", "c6": "black pawn", "f6": "black king", "b7": "black pawn", "e7": "black pawn", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "c8": "black bishop", "d8": "black queen", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false }, "candidate": { "uci": "c3e4", "san": "Ne4+" }, "after": { "fen": "rnbq1bnr/1p2p1pp/2p2k2/p3Np2/2pPN3/4P3/PPP2PPP/R1BQ1RK1 b - - 3 8", "side_to_move": "black", "pieces": { "a1": "white rook", "c1": "white bishop", "d1": "white queen", "f1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "e3": "white pawn", "c4": "black pawn", "d4": "white pawn", "e4": "white knight", "a5": "black pawn", "e5": "white knight", "f5": "black pawn", "c6": "black pawn", "f6": "black king", "b7": "black pawn", "e7": "black pawn", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "c8": "black bishop", "d8": "black queen", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": true, "terminal": false } }, "questions": { "loses_material": { "type": "noul", "instructions": "After the candidate White move, can Black force a net material gain soon? Check legal captures, recaptures and attacks on ALL White pieces. A fair exchange is not a loss; merely being attacked is not enough. Assess from White perspective." }, "allows_mate": { "type": "noul", "instructions": "Can Black checkmate White on its very next move in the after position?" }, "quality": { "type": "score", "instructions": "Evaluate the candidate for White after Black responds strongly. Do not reward a check that sacrifices material without compensation.", "criteria": [ "Losing blunder", "Dubious or wasteful", "Playable", "Good", "Winning or excellent" ] }, "black_reply": { "type": "choice", "instructions": "Play Black in the AFTER position. Choose the strongest reply to punish White, especially hanging pieces or checkmate. Every offered move is legal.", "criteria": { "f5e4": "fxe4", "f6e6": "Ke6" } } } }, "safety": null, "turn": 8, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "loses_material": { "type": "noul", "noul": 0.43 }, "allows_mate": { "type": "noul", "noul": 0.11 }, "quality": { "type": "score", "score": 1.81, "legend": { "0": "Losing blunder", "1": "Dubious or wasteful", "2": "Playable", "3": "Good", "4": "Winning or excellent" }, "probabilities": { "0": 0.16, "1": 0.29, "2": 0.21, "3": 0.24, "4": 0.1 }, "confidence": 0.05 }, "black_reply": { "type": "choice", "choice": "f5e4", "probabilities": { "f6e6": 0.18, "f5e4": 0.82 }, "confidence": 0.63 } }, "usage": { "input_tokens": 1330, "output_tokens": 90, "cost": 5.586e-05 }, "provider": "TypeSafe" }, "elapsed_s": 1.5681586670689285 }, { "stage": "review", "candidate": "e5c6", "request": { "model": "typesafe/jev-1.13", "state": { "before": { "fen": "rnbq1bnr/1p2p1pp/2p2k2/p3Np2/2pP4/2N1P3/PPP2PPP/R1BQ1RK1 w - - 2 8", "side_to_move": "white", "pieces": { "a1": "white rook", "c1": "white bishop", "d1": "white queen", "f1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "c3": "white knight", "e3": "white pawn", "c4": "black pawn", "d4": "white pawn", "a5": "black pawn", "e5": "white knight", "f5": "black pawn", "c6": "black pawn", "f6": "black king", "b7": "black pawn", "e7": "black pawn", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "c8": "black bishop", "d8": "black queen", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false }, "candidate": { "uci": "e5c6", "san": "Nxc6" }, "after": { "fen": "rnbq1bnr/1p2p1pp/2N2k2/p4p2/2pP4/2N1P3/PPP2PPP/R1BQ1RK1 b - - 0 8", "side_to_move": "black", "pieces": { "a1": "white rook", "c1": "white bishop", "d1": "white queen", "f1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "c3": "white knight", "e3": "white pawn", "c4": "black pawn", "d4": "white pawn", "a5": "black pawn", "f5": "black pawn", "c6": "white knight", "f6": "black king", "b7": "black pawn", "e7": "black pawn", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "c8": "black bishop", "d8": "black queen", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false } }, "questions": { "loses_material": { "type": "noul", "instructions": "After the candidate White move, can Black force a net material gain soon? Check legal captures, recaptures and attacks on ALL White pieces. A fair exchange is not a loss; merely being attacked is not enough. Assess from White perspective." }, "allows_mate": { "type": "noul", "instructions": "Can Black checkmate White on its very next move in the after position?" }, "quality": { "type": "score", "instructions": "Evaluate the candidate for White after Black responds strongly. Do not reward a check that sacrifices material without compensation.", "criteria": [ "Losing blunder", "Dubious or wasteful", "Playable", "Good", "Winning or excellent" ] }, "black_reply": { "type": "choice", "instructions": "Play Black in the AFTER position. Choose the strongest reply to punish White, especially hanging pieces or checkmate. Every offered move is legal.", "criteria": { "a5a4": "a4", "a8a6": "Ra6", "a8a7": "Ra7", "b7b5": "b5", "b7b6": "b6", "b7c6": "bxc6", "b8a6": "Na6", "b8c6": "Nxc6", "b8d7": "Nd7", "c8d7": "Bd7", "c8e6": "Be6", "d8b6": "Qb6", "d8c7": "Qc7", "d8d4": "Qxd4", "d8d5": "Qd5", "d8d6": "Qd6", "d8d7": "Qd7", "d8e8": "Qe8", "e7e5": "e5", "e7e6": "e6", "f5f4": "f4", "f6e6": "Ke6", "f6f7": "Kf7", "f6g5": "Kg5", "f6g6": "Kg6", "g7g5": "g5", "g7g6": "g6", "g8h6": "Nh6", "h7h5": "h5", "h7h6": "h6" } } } }, "safety": null, "turn": 8, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "loses_material": { "type": "noul", "noul": 0.52 }, "allows_mate": { "type": "noul", "noul": 0.09 }, "quality": { "type": "score", "score": 2.19, "legend": { "0": "Losing blunder", "1": "Dubious or wasteful", "2": "Playable", "3": "Good", "4": "Winning or excellent" }, "probabilities": { "0": 0.1, "1": 0.22, "2": 0.2, "3": 0.33, "4": 0.15 }, "confidence": 0.08 }, "black_reply": { "type": "choice", "choice": "d8d4", "probabilities": { "g8h6": 0, "f6f7": 0.01, "b8a6": 0.01, "f6g5": 0.01, "g7g5": 0, "h7h5": 0, "b8d7": 0.01, "a8a7": 0, "b7b6": 0.02, "d8e8": 0, "f6g6": 0.01, "b7c6": 0.21, "e7e6": 0.01, "d8b6": 0.04, "d8c7": 0.01, "d8d7": 0.01, "f6e6": 0.02, "c8d7": 0, "h7h6": 0, "d8d6": 0.01, "c8e6": 0.01, "b8c6": 0.19999999999999998, "b7b5": 0.01, "g7g6": 0, "d8d5": 0.03, "f5f4": 0, "a8a6": 0, "e7e5": 0.01, "a5a4": 0, "d8d4": 0.36 }, "confidence": 0.35 } }, "usage": { "input_tokens": 1778, "output_tokens": 370, "cost": 7.4676e-05 }, "provider": "TypeSafe" }, "elapsed_s": 1.966976908966899 }, { "stage": "selection", "candidate": null, "request": { "model": "typesafe/jev-1.13", "state": { "position": { "fen": "rnbq1bnr/1p2p1pp/2p2k2/p3Np2/2pP4/2N1P3/PPP2PPP/R1BQ1RK1 w - - 2 8", "board": "8 r n b q . b n r\n7 . p . . p . p p\n6 . . p . . k . .\n5 p . . . N p . .\n4 . . p P . . . .\n3 . . N . P . . .\n2 P P P . . P P P\n1 R . B Q . R K .\n a b c d e f g h", "legend": "Uppercase = White, lowercase = Black. P pawn, N knight, B bishop, R rook, Q queen, K king; . empty.", "you_play": "White", "in_check": false, "history_uci": [ "g1f3", "a7a5", "b1c3", "f7f5", "d2d4", "e8f7", "e2e3", "c7c6", "f1c4", "d7d5", "e1g1", "d5c4", "f3e5", "f7f6" ], "history_san": [ "Nf3", "a5", "Nc3", "f5", "d4", "Kf7", "e3", "c6", "Bc4+", "d5", "O-O", "dxc4", "Ne5+", "Kf6" ], "pieces": { "white": { "a1": "rook", "c1": "bishop", "d1": "queen", "f1": "rook", "g1": "king", "a2": "pawn", "b2": "pawn", "c2": "pawn", "f2": "pawn", "g2": "pawn", "h2": "pawn", "c3": "knight", "e3": "pawn", "d4": "pawn", "e5": "knight" }, "black": { "c4": "pawn", "a5": "pawn", "f5": "pawn", "c6": "pawn", "f6": "king", "b7": "pawn", "e7": "pawn", "g7": "pawn", "h7": "pawn", "a8": "rook", "b8": "knight", "c8": "bishop", "d8": "queen", "f8": "bishop", "g8": "knight", "h8": "rook" } } }, "reviews": [ { "uci": "e5c4", "proposal_probability": 0.25, "loss_probability": 0.44, "mate_probability": 0.09, "quality": 2.31, "black_reply": "d8d4", "after_model_reply": { "fen": "rnb2bnr/1p2p1pp/2p2k2/p4p2/2Nq4/2N1P3/PPP2PPP/R1BQ1RK1 w - - 0 9", "side_to_move": "white", "pieces": { "a1": "white rook", "c1": "white bishop", "d1": "white queen", "f1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "c3": "white knight", "e3": "white pawn", "c4": "white knight", "d4": "black queen", "a5": "black pawn", "f5": "black pawn", "c6": "black pawn", "f6": "black king", "b7": "black pawn", "e7": "black pawn", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "c8": "black bishop", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false } }, { "uci": "c3e4", "proposal_probability": 0.09, "loss_probability": 0.43, "mate_probability": 0.11, "quality": 1.81, "black_reply": "f5e4", "after_model_reply": { "fen": "rnbq1bnr/1p2p1pp/2p2k2/p3N3/2pPp3/4P3/PPP2PPP/R1BQ1RK1 w - - 0 9", "side_to_move": "white", "pieces": { "a1": "white rook", "c1": "white bishop", "d1": "white queen", "f1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "e3": "white pawn", "c4": "black pawn", "d4": "white pawn", "e4": "black pawn", "a5": "black pawn", "e5": "white knight", "c6": "black pawn", "f6": "black king", "b7": "black pawn", "e7": "black pawn", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "c8": "black bishop", "d8": "black queen", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false } }, { "uci": "e5c6", "proposal_probability": 0.08, "loss_probability": 0.52, "mate_probability": 0.09, "quality": 2.19, "black_reply": "d8d4", "after_model_reply": { "fen": "rnb2bnr/1p2p1pp/2N2k2/p4p2/2pq4/2N1P3/PPP2PPP/R1BQ1RK1 w - - 0 9", "side_to_move": "white", "pieces": { "a1": "white rook", "c1": "white bishop", "d1": "white queen", "f1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "c3": "white knight", "e3": "white pawn", "c4": "black pawn", "d4": "black queen", "a5": "black pawn", "f5": "black pawn", "c6": "white knight", "f6": "black king", "b7": "black pawn", "e7": "black pawn", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "c8": "black bishop", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false } } ], "warning": "Reviews and Black replies are fallible predictions of the same Jev model, not verified engine evaluations." }, "questions": { "move": { "type": "choice", "instructions": "Choose the best White move from the reviewed candidates. Independently check each hypothetical Black reply, captures and recaptures. Prefer avoiding material loss, then useful progress and king safety. Reviews may be wrong. A high proposal probability does not prove a good move.", "criteria": { "e5c4": "knight e5 to c4; captures pawn; SAN Nxc4", "c3e4": "knight c3 to e4; SAN Ne4+", "e5c6": "knight e5 to c6; captures pawn; SAN Nxc6" } } } }, "safety": null, "turn": 8, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "move": { "type": "choice", "choice": "e5c4", "probabilities": { "c3e4": 0.34, "e5c6": 0.22, "e5c4": 0.44 }, "confidence": 0.15 } }, "usage": { "input_tokens": 2516, "output_tokens": 50, "cost": 0.000105672 }, "provider": "TypeSafe" }, "elapsed_s": 1.5243374339770526 }, { "stage": "proposal", "candidate": null, "request": { "model": "typesafe/jev-1.13", "state": { "fen": "rn1q1bnr/1p2p1pp/2p1bk2/p4p2/2NP4/2N1P3/PPP2PPP/R1BQ1RK1 w - - 1 9", "board": "8 r n . q . b n r\n7 . p . . p . p p\n6 . . p . b k . .\n5 p . . . . p . .\n4 . . N P . . . .\n3 . . N . P . . .\n2 P P P . . P P P\n1 R . B Q . R K .\n a b c d e f g h", "legend": "Uppercase = White, lowercase = Black. P pawn, N knight, B bishop, R rook, Q queen, K king; . empty.", "you_play": "White", "in_check": false, "history_uci": [ "g1f3", "a7a5", "b1c3", "f7f5", "d2d4", "e8f7", "e2e3", "c7c6", "f1c4", "d7d5", "e1g1", "d5c4", "f3e5", "f7f6", "e5c4", "c8e6" ], "history_san": [ "Nf3", "a5", "Nc3", "f5", "d4", "Kf7", "e3", "c6", "Bc4+", "d5", "O-O", "dxc4", "Ne5+", "Kf6", "Nxc4", "Be6" ], "pieces": { "white": { "a1": "rook", "c1": "bishop", "d1": "queen", "f1": "rook", "g1": "king", "a2": "pawn", "b2": "pawn", "c2": "pawn", "f2": "pawn", "g2": "pawn", "h2": "pawn", "c3": "knight", "e3": "pawn", "c4": "knight", "d4": "pawn" }, "black": { "a5": "pawn", "f5": "pawn", "c6": "pawn", "e6": "bishop", "f6": "king", "b7": "pawn", "e7": "pawn", "g7": "pawn", "h7": "pawn", "a8": "rook", "b8": "knight", "d8": "queen", "f8": "bishop", "g8": "knight", "h8": "rook" } } }, "questions": { "move": { "type": "choice", "instructions": "Choose one legal White move. You alone evaluate the moves; their list is unranked. Use the explicit piece locations to check the destination and any lines opened by moving. First consider whether Black can capture your queen, rook or minor pieces after the move. Count both sides of an exchange: pawn=1, knight/bishop=3, rook=5, queen=9. Prefer keeping material unless you can establish a concrete profitable continuation. Giving check is NOT compensation for losing a piece. When no tactic works, develop or improve a safe piece. Protect your king and aim for checkmate. Read the history to avoid purposeless repeats when ahead; a draw can be useful when losing. Return one offered UCI move.", "criteria": { "a1b1": "rook a1 to b1; SAN Rb1", "a2a3": "pawn a2 to a3; SAN a3", "a2a4": "pawn a2 to a4; SAN a4", "b2b3": "pawn b2 to b3; SAN b3", "b2b4": "pawn b2 to b4; SAN b4", "c1d2": "bishop c1 to d2; SAN Bd2", "c3a4": "knight c3 to a4; SAN Na4", "c3b1": "knight c3 to b1; SAN Nb1", "c3b5": "knight c3 to b5; SAN Nb5", "c3d5": "knight c3 to d5; SAN Nd5+", "c3e2": "knight c3 to e2; SAN Ne2", "c3e4": "knight c3 to e4; SAN Ne4+", "c4a3": "knight c4 to a3; SAN Na3", "c4a5": "knight c4 to a5; captures pawn; SAN Nxa5", "c4b6": "knight c4 to b6; SAN Nb6", "c4d2": "knight c4 to d2; SAN Nd2", "c4d6": "knight c4 to d6; SAN Nd6", "c4e5": "knight c4 to e5; SAN Ne5", "d1d2": "queen d1 to d2; SAN Qd2", "d1d3": "queen d1 to d3; SAN Qd3", "d1e1": "queen d1 to e1; SAN Qe1", "d1e2": "queen d1 to e2; SAN Qe2", "d1f3": "queen d1 to f3; SAN Qf3", "d1g4": "queen d1 to g4; SAN Qg4", "d1h5": "queen d1 to h5; SAN Qh5", "d4d5": "pawn d4 to d5; SAN d5", "e3e4": "pawn e3 to e4; SAN e4", "f1e1": "rook f1 to e1; SAN Re1", "f2f3": "pawn f2 to f3; SAN f3", "f2f4": "pawn f2 to f4; SAN f4", "g1h1": "king g1 to h1; SAN Kh1", "g2g3": "pawn g2 to g3; SAN g3", "g2g4": "pawn g2 to g4; SAN g4", "h2h3": "pawn h2 to h3; SAN h3", "h2h4": "pawn h2 to h4; SAN h4" } } } }, "safety": null, "turn": 9, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "move": { "type": "choice", "choice": "c4a5", "probabilities": { "d1g4": 0.02, "g2g3": 0.01, "c3e4": 0.08, "a2a4": 0.01, "c3d5": 0.06, "c1d2": 0.03, "c4d2": 0.02, "a2a3": 0.01, "d4d5": 0.05, "d1d2": 0.01, "c3a4": 0.02, "c3b5": 0.02, "e3e4": 0.03, "b2b4": 0.01, "c4a5": 0.27999999999999997, "g2g4": 0, "c4a3": 0.01, "c3e2": 0.02, "a1b1": 0.01, "d1e1": 0.01, "f1e1": 0.02, "f2f3": 0, "c4e5": 0.05, "d1h5": 0.04, "c3b1": 0, "f2f4": 0.01, "h2h4": 0.01, "g1h1": 0.01, "d1f3": 0.01, "b2b3": 0.01, "h2h3": 0.01, "c4b6": 0.03, "d1d3": 0.03, "c4d6": 0.04, "d1e2": 0.02 }, "confidence": 0.27 } }, "usage": { "input_tokens": 2008, "output_tokens": 370, "cost": 8.4336e-05 }, "provider": "TypeSafe" }, "elapsed_s": 1.4462615799857304 }, { "stage": "review", "candidate": "c4a5", "request": { "model": "typesafe/jev-1.13", "state": { "before": { "fen": "rn1q1bnr/1p2p1pp/2p1bk2/p4p2/2NP4/2N1P3/PPP2PPP/R1BQ1RK1 w - - 1 9", "side_to_move": "white", "pieces": { "a1": "white rook", "c1": "white bishop", "d1": "white queen", "f1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "c3": "white knight", "e3": "white pawn", "c4": "white knight", "d4": "white pawn", "a5": "black pawn", "f5": "black pawn", "c6": "black pawn", "e6": "black bishop", "f6": "black king", "b7": "black pawn", "e7": "black pawn", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "d8": "black queen", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false }, "candidate": { "uci": "c4a5", "san": "Nxa5" }, "after": { "fen": "rn1q1bnr/1p2p1pp/2p1bk2/N4p2/3P4/2N1P3/PPP2PPP/R1BQ1RK1 b - - 0 9", "side_to_move": "black", "pieces": { "a1": "white rook", "c1": "white bishop", "d1": "white queen", "f1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "c3": "white knight", "e3": "white pawn", "d4": "white pawn", "a5": "white knight", "f5": "black pawn", "c6": "black pawn", "e6": "black bishop", "f6": "black king", "b7": "black pawn", "e7": "black pawn", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "d8": "black queen", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false } }, "questions": { "loses_material": { "type": "noul", "instructions": "After the candidate White move, can Black force a net material gain soon? Check legal captures, recaptures and attacks on ALL White pieces. A fair exchange is not a loss; merely being attacked is not enough. Assess from White perspective." }, "allows_mate": { "type": "noul", "instructions": "Can Black checkmate White on its very next move in the after position?" }, "quality": { "type": "score", "instructions": "Evaluate the candidate for White after Black responds strongly. Do not reward a check that sacrifices material without compensation.", "criteria": [ "Losing blunder", "Dubious or wasteful", "Playable", "Good", "Winning or excellent" ] }, "black_reply": { "type": "choice", "instructions": "Play Black in the AFTER position. Choose the strongest reply to punish White, especially hanging pieces or checkmate. Every offered move is legal.", "criteria": { "a8a5": "Rxa5", "a8a6": "Ra6", "a8a7": "Ra7", "b7b5": "b5", "b7b6": "b6", "b8a6": "Na6", "b8d7": "Nd7", "c6c5": "c5", "d8a5": "Qxa5", "d8b6": "Qb6", "d8c7": "Qc7", "d8c8": "Qc8", "d8d4": "Qxd4", "d8d5": "Qd5", "d8d6": "Qd6", "d8d7": "Qd7", "d8e8": "Qe8", "e6a2": "Bxa2", "e6b3": "Bb3", "e6c4": "Bc4", "e6c8": "Bc8", "e6d5": "Bd5", "e6d7": "Bd7", "e6f7": "Bf7", "f5f4": "f4", "f6f7": "Kf7", "f6g5": "Kg5", "f6g6": "Kg6", "g7g5": "g5", "g7g6": "g6", "g8h6": "Nh6", "h7h5": "h5", "h7h6": "h6" } } } }, "safety": null, "turn": 9, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "loses_material": { "type": "noul", "noul": 0.4 }, "allows_mate": { "type": "noul", "noul": 0.08 }, "quality": { "type": "score", "score": 2.23, "legend": { "0": "Losing blunder", "1": "Dubious or wasteful", "2": "Playable", "3": "Good", "4": "Winning or excellent" }, "probabilities": { "0": 0.1, "1": 0.2, "2": 0.21, "3": 0.35, "4": 0.14 }, "confidence": 0.13 }, "black_reply": { "type": "choice", "choice": "d8a5", "probabilities": { "e6f7": 0, "b8a6": 0.01, "b8d7": 0, "a8a7": 0, "e6b3": 0.03, "b7b6": 0, "d8d5": 0.01, "h7h6": 0, "d8b6": 0.01, "c6c5": 0, "d8a5": 0.5, "e6a2": 0.01, "e6c4": 0.01, "g7g5": 0, "d8d7": 0, "b7b5": 0, "h7h5": 0, "e6d5": 0.01, "e6c8": 0, "e6d7": 0, "d8c7": 0, "f6f7": 0, "d8d4": 0.09999999999999999, "d8d6": 0, "a8a6": 0, "g8h6": 0, "a8a5": 0.31, "d8e8": 0, "f6g6": 0, "f5f4": 0, "g7g6": 0, "f6g5": 0, "d8c8": 0 }, "confidence": 0.47 } }, "usage": { "input_tokens": 1806, "output_tokens": 400, "cost": 7.5852e-05 }, "provider": "TypeSafe" }, "elapsed_s": 1.6177710470510647 }, { "stage": "review", "candidate": "c3e4", "request": { "model": "typesafe/jev-1.13", "state": { "before": { "fen": "rn1q1bnr/1p2p1pp/2p1bk2/p4p2/2NP4/2N1P3/PPP2PPP/R1BQ1RK1 w - - 1 9", "side_to_move": "white", "pieces": { "a1": "white rook", "c1": "white bishop", "d1": "white queen", "f1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "c3": "white knight", "e3": "white pawn", "c4": "white knight", "d4": "white pawn", "a5": "black pawn", "f5": "black pawn", "c6": "black pawn", "e6": "black bishop", "f6": "black king", "b7": "black pawn", "e7": "black pawn", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "d8": "black queen", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false }, "candidate": { "uci": "c3e4", "san": "Ne4+" }, "after": { "fen": "rn1q1bnr/1p2p1pp/2p1bk2/p4p2/2NPN3/4P3/PPP2PPP/R1BQ1RK1 b - - 2 9", "side_to_move": "black", "pieces": { "a1": "white rook", "c1": "white bishop", "d1": "white queen", "f1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "e3": "white pawn", "c4": "white knight", "d4": "white pawn", "e4": "white knight", "a5": "black pawn", "f5": "black pawn", "c6": "black pawn", "e6": "black bishop", "f6": "black king", "b7": "black pawn", "e7": "black pawn", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "d8": "black queen", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": true, "terminal": false } }, "questions": { "loses_material": { "type": "noul", "instructions": "After the candidate White move, can Black force a net material gain soon? Check legal captures, recaptures and attacks on ALL White pieces. A fair exchange is not a loss; merely being attacked is not enough. Assess from White perspective." }, "allows_mate": { "type": "noul", "instructions": "Can Black checkmate White on its very next move in the after position?" }, "quality": { "type": "score", "instructions": "Evaluate the candidate for White after Black responds strongly. Do not reward a check that sacrifices material without compensation.", "criteria": [ "Losing blunder", "Dubious or wasteful", "Playable", "Good", "Winning or excellent" ] }, "black_reply": { "type": "choice", "instructions": "Play Black in the AFTER position. Choose the strongest reply to punish White, especially hanging pieces or checkmate. Every offered move is legal.", "criteria": { "f5e4": "fxe4", "f6f7": "Kf7", "f6g6": "Kg6" } } } }, "safety": null, "turn": 9, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "loses_material": { "type": "noul", "noul": 0.43 }, "allows_mate": { "type": "noul", "noul": 0.09 }, "quality": { "type": "score", "score": 1.84, "legend": { "0": "Losing blunder", "1": "Dubious or wasteful", "2": "Playable", "3": "Good", "4": "Winning or excellent" }, "probabilities": { "0": 0.15, "1": 0.3, "2": 0.2, "3": 0.26, "4": 0.09 }, "confidence": 0.06 }, "black_reply": { "type": "choice", "choice": "f5e4", "probabilities": { "f6f7": 0.07, "f6g6": 0.12, "f5e4": 0.81 }, "confidence": 0.71 } }, "usage": { "input_tokens": 1326, "output_tokens": 100, "cost": 5.5692e-05 }, "provider": "TypeSafe" }, "elapsed_s": 1.6665340140461922 }, { "stage": "review", "candidate": "c3d5", "request": { "model": "typesafe/jev-1.13", "state": { "before": { "fen": "rn1q1bnr/1p2p1pp/2p1bk2/p4p2/2NP4/2N1P3/PPP2PPP/R1BQ1RK1 w - - 1 9", "side_to_move": "white", "pieces": { "a1": "white rook", "c1": "white bishop", "d1": "white queen", "f1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "c3": "white knight", "e3": "white pawn", "c4": "white knight", "d4": "white pawn", "a5": "black pawn", "f5": "black pawn", "c6": "black pawn", "e6": "black bishop", "f6": "black king", "b7": "black pawn", "e7": "black pawn", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "d8": "black queen", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false }, "candidate": { "uci": "c3d5", "san": "Nd5+" }, "after": { "fen": "rn1q1bnr/1p2p1pp/2p1bk2/p2N1p2/2NP4/4P3/PPP2PPP/R1BQ1RK1 b - - 2 9", "side_to_move": "black", "pieces": { "a1": "white rook", "c1": "white bishop", "d1": "white queen", "f1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "e3": "white pawn", "c4": "white knight", "d4": "white pawn", "a5": "black pawn", "d5": "white knight", "f5": "black pawn", "c6": "black pawn", "e6": "black bishop", "f6": "black king", "b7": "black pawn", "e7": "black pawn", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "d8": "black queen", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": true, "terminal": false } }, "questions": { "loses_material": { "type": "noul", "instructions": "After the candidate White move, can Black force a net material gain soon? Check legal captures, recaptures and attacks on ALL White pieces. A fair exchange is not a loss; merely being attacked is not enough. Assess from White perspective." }, "allows_mate": { "type": "noul", "instructions": "Can Black checkmate White on its very next move in the after position?" }, "quality": { "type": "score", "instructions": "Evaluate the candidate for White after Black responds strongly. Do not reward a check that sacrifices material without compensation.", "criteria": [ "Losing blunder", "Dubious or wasteful", "Playable", "Good", "Winning or excellent" ] }, "black_reply": { "type": "choice", "instructions": "Play Black in the AFTER position. Choose the strongest reply to punish White, especially hanging pieces or checkmate. Every offered move is legal.", "criteria": { "c6d5": "cxd5", "d8d5": "Qxd5", "e6d5": "Bxd5", "f6f7": "Kf7", "f6g5": "Kg5", "f6g6": "Kg6" } } } }, "safety": null, "turn": 9, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "loses_material": { "type": "noul", "noul": 0.4 }, "allows_mate": { "type": "noul", "noul": 0.1 }, "quality": { "type": "score", "score": 1.97, "legend": { "0": "Losing blunder", "1": "Dubious or wasteful", "2": "Playable", "3": "Good", "4": "Winning or excellent" }, "probabilities": { "0": 0.14, "1": 0.25, "2": 0.22, "3": 0.27, "4": 0.12 }, "confidence": 0 }, "black_reply": { "type": "choice", "choice": "d8d5", "probabilities": { "e6d5": 0.21, "c6d5": 0.24, "f6g6": 0.08, "d8d5": 0.3, "f6f7": 0.06, "f6g5": 0.11 }, "confidence": 0.17 } }, "usage": { "input_tokens": 1377, "output_tokens": 130, "cost": 5.7834e-05 }, "provider": "TypeSafe" }, "elapsed_s": 1.3971385570475832 }, { "stage": "selection", "candidate": null, "request": { "model": "typesafe/jev-1.13", "state": { "position": { "fen": "rn1q1bnr/1p2p1pp/2p1bk2/p4p2/2NP4/2N1P3/PPP2PPP/R1BQ1RK1 w - - 1 9", "board": "8 r n . q . b n r\n7 . p . . p . p p\n6 . . p . b k . .\n5 p . . . . p . .\n4 . . N P . . . .\n3 . . N . P . . .\n2 P P P . . P P P\n1 R . B Q . R K .\n a b c d e f g h", "legend": "Uppercase = White, lowercase = Black. P pawn, N knight, B bishop, R rook, Q queen, K king; . empty.", "you_play": "White", "in_check": false, "history_uci": [ "g1f3", "a7a5", "b1c3", "f7f5", "d2d4", "e8f7", "e2e3", "c7c6", "f1c4", "d7d5", "e1g1", "d5c4", "f3e5", "f7f6", "e5c4", "c8e6" ], "history_san": [ "Nf3", "a5", "Nc3", "f5", "d4", "Kf7", "e3", "c6", "Bc4+", "d5", "O-O", "dxc4", "Ne5+", "Kf6", "Nxc4", "Be6" ], "pieces": { "white": { "a1": "rook", "c1": "bishop", "d1": "queen", "f1": "rook", "g1": "king", "a2": "pawn", "b2": "pawn", "c2": "pawn", "f2": "pawn", "g2": "pawn", "h2": "pawn", "c3": "knight", "e3": "pawn", "c4": "knight", "d4": "pawn" }, "black": { "a5": "pawn", "f5": "pawn", "c6": "pawn", "e6": "bishop", "f6": "king", "b7": "pawn", "e7": "pawn", "g7": "pawn", "h7": "pawn", "a8": "rook", "b8": "knight", "d8": "queen", "f8": "bishop", "g8": "knight", "h8": "rook" } } }, "reviews": [ { "uci": "c4a5", "proposal_probability": 0.27999999999999997, "loss_probability": 0.4, "mate_probability": 0.08, "quality": 2.23, "black_reply": "d8a5", "after_model_reply": { "fen": "rn3bnr/1p2p1pp/2p1bk2/q4p2/3P4/2N1P3/PPP2PPP/R1BQ1RK1 w - - 0 10", "side_to_move": "white", "pieces": { "a1": "white rook", "c1": "white bishop", "d1": "white queen", "f1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "c3": "white knight", "e3": "white pawn", "d4": "white pawn", "a5": "black queen", "f5": "black pawn", "c6": "black pawn", "e6": "black bishop", "f6": "black king", "b7": "black pawn", "e7": "black pawn", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false } }, { "uci": "c3e4", "proposal_probability": 0.08, "loss_probability": 0.43, "mate_probability": 0.09, "quality": 1.84, "black_reply": "f5e4", "after_model_reply": { "fen": "rn1q1bnr/1p2p1pp/2p1bk2/p7/2NPp3/4P3/PPP2PPP/R1BQ1RK1 w - - 0 10", "side_to_move": "white", "pieces": { "a1": "white rook", "c1": "white bishop", "d1": "white queen", "f1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "e3": "white pawn", "c4": "white knight", "d4": "white pawn", "e4": "black pawn", "a5": "black pawn", "c6": "black pawn", "e6": "black bishop", "f6": "black king", "b7": "black pawn", "e7": "black pawn", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "d8": "black queen", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false } }, { "uci": "c3d5", "proposal_probability": 0.06, "loss_probability": 0.4, "mate_probability": 0.1, "quality": 1.97, "black_reply": "d8d5", "after_model_reply": { "fen": "rn3bnr/1p2p1pp/2p1bk2/p2q1p2/2NP4/4P3/PPP2PPP/R1BQ1RK1 w - - 0 10", "side_to_move": "white", "pieces": { "a1": "white rook", "c1": "white bishop", "d1": "white queen", "f1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "e3": "white pawn", "c4": "white knight", "d4": "white pawn", "a5": "black pawn", "d5": "black queen", "f5": "black pawn", "c6": "black pawn", "e6": "black bishop", "f6": "black king", "b7": "black pawn", "e7": "black pawn", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false } } ], "warning": "Reviews and Black replies are fallible predictions of the same Jev model, not verified engine evaluations." }, "questions": { "move": { "type": "choice", "instructions": "Choose the best White move from the reviewed candidates. Independently check each hypothetical Black reply, captures and recaptures. Prefer avoiding material loss, then useful progress and king safety. Reviews may be wrong. A high proposal probability does not prove a good move.", "criteria": { "c4a5": "knight c4 to a5; captures pawn; SAN Nxa5", "c3e4": "knight c3 to e4; SAN Ne4+", "c3d5": "knight c3 to d5; SAN Nd5+" } } } }, "safety": null, "turn": 9, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "move": { "type": "choice", "choice": "c3d5", "probabilities": { "c3e4": 0.26, "c4a5": 0.3, "c3d5": 0.44 }, "confidence": 0.16 } }, "usage": { "input_tokens": 2517, "output_tokens": 50, "cost": 0.000105714 }, "provider": "TypeSafe" }, "elapsed_s": 1.5173505850834772 }, { "stage": "proposal", "candidate": null, "request": { "model": "typesafe/jev-1.13", "state": { "fen": "rn3bnr/1p2p1pp/2p1bk2/p2q1p2/2NP4/4P3/PPP2PPP/R1BQ1RK1 w - - 0 10", "board": "8 r n . . . b n r\n7 . p . . p . p p\n6 . . p . b k . .\n5 p . . q . p . .\n4 . . N P . . . .\n3 . . . . P . . .\n2 P P P . . P P P\n1 R . B Q . R K .\n a b c d e f g h", "legend": "Uppercase = White, lowercase = Black. P pawn, N knight, B bishop, R rook, Q queen, K king; . empty.", "you_play": "White", "in_check": false, "history_uci": [ "g1f3", "a7a5", "b1c3", "f7f5", "d2d4", "e8f7", "e2e3", "c7c6", "f1c4", "d7d5", "e1g1", "d5c4", "f3e5", "f7f6", "e5c4", "c8e6", "c3d5", "d8d5" ], "history_san": [ "Nf3", "a5", "Nc3", "f5", "d4", "Kf7", "e3", "c6", "Bc4+", "d5", "O-O", "dxc4", "Ne5+", "Kf6", "Nxc4", "Be6", "Nd5+", "Qxd5" ], "pieces": { "white": { "a1": "rook", "c1": "bishop", "d1": "queen", "f1": "rook", "g1": "king", "a2": "pawn", "b2": "pawn", "c2": "pawn", "f2": "pawn", "g2": "pawn", "h2": "pawn", "e3": "pawn", "c4": "knight", "d4": "pawn" }, "black": { "a5": "pawn", "d5": "queen", "f5": "pawn", "c6": "pawn", "e6": "bishop", "f6": "king", "b7": "pawn", "e7": "pawn", "g7": "pawn", "h7": "pawn", "a8": "rook", "b8": "knight", "f8": "bishop", "g8": "knight", "h8": "rook" } } }, "questions": { "move": { "type": "choice", "instructions": "Choose one legal White move. You alone evaluate the moves; their list is unranked. Use the explicit piece locations to check the destination and any lines opened by moving. First consider whether Black can capture your queen, rook or minor pieces after the move. Count both sides of an exchange: pawn=1, knight/bishop=3, rook=5, queen=9. Prefer keeping material unless you can establish a concrete profitable continuation. Giving check is NOT compensation for losing a piece. When no tactic works, develop or improve a safe piece. Protect your king and aim for checkmate. Read the history to avoid purposeless repeats when ahead; a draw can be useful when losing. Return one offered UCI move.", "criteria": { "a1b1": "rook a1 to b1; SAN Rb1", "a2a3": "pawn a2 to a3; SAN a3", "a2a4": "pawn a2 to a4; SAN a4", "b2b3": "pawn b2 to b3; SAN b3", "b2b4": "pawn b2 to b4; SAN b4", "c1d2": "bishop c1 to d2; SAN Bd2", "c2c3": "pawn c2 to c3; SAN c3", "c4a3": "knight c4 to a3; SAN Na3", "c4a5": "knight c4 to a5; captures pawn; SAN Nxa5", "c4b6": "knight c4 to b6; SAN Nb6", "c4d2": "knight c4 to d2; SAN Nd2", "c4d6": "knight c4 to d6; SAN Nd6", "c4e5": "knight c4 to e5; SAN Ne5", "d1d2": "queen d1 to d2; SAN Qd2", "d1d3": "queen d1 to d3; SAN Qd3", "d1e1": "queen d1 to e1; SAN Qe1", "d1e2": "queen d1 to e2; SAN Qe2", "d1f3": "queen d1 to f3; SAN Qf3", "d1g4": "queen d1 to g4; SAN Qg4", "d1h5": "queen d1 to h5; SAN Qh5", "e3e4": "pawn e3 to e4; SAN e4", "f1e1": "rook f1 to e1; SAN Re1", "f2f3": "pawn f2 to f3; SAN f3", "f2f4": "pawn f2 to f4; SAN f4", "g1h1": "king g1 to h1; SAN Kh1", "g2g3": "pawn g2 to g3; SAN g3", "g2g4": "pawn g2 to g4; SAN g4", "h2h3": "pawn h2 to h3; SAN h3", "h2h4": "pawn h2 to h4; SAN h4" } } } }, "safety": null, "turn": 10, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "move": { "type": "choice", "choice": "c4a5", "probabilities": { "c4a5": 0.48, "c1d2": 0.02, "c4b6": 0.02, "b2b3": 0.01, "c4d2": 0.02, "e3e4": 0.02, "c4a3": 0.01, "h2h4": 0, "d1e1": 0.01, "d1f3": 0.02, "c4e5": 0.04, "g1h1": 0.01, "c2c3": 0.02, "d1h5": 0.03, "h2h3": 0, "g2g4": 0, "d1d3": 0.04, "c4d6": 0.05, "f1e1": 0.03, "f2f3": 0.01, "g2g3": 0.01, "b2b4": 0.01, "d1d2": 0.02, "a2a4": 0.01, "a2a3": 0.01, "a1b1": 0.01, "d1g4": 0.060000000000000005, "d1e2": 0.02, "f2f4": 0.01 }, "confidence": 0.45 } }, "usage": { "input_tokens": 1871, "output_tokens": 310, "cost": 7.8582e-05 }, "provider": "TypeSafe" }, "elapsed_s": 1.3692868039943278 }, { "stage": "review", "candidate": "c4a5", "request": { "model": "typesafe/jev-1.13", "state": { "before": { "fen": "rn3bnr/1p2p1pp/2p1bk2/p2q1p2/2NP4/4P3/PPP2PPP/R1BQ1RK1 w - - 0 10", "side_to_move": "white", "pieces": { "a1": "white rook", "c1": "white bishop", "d1": "white queen", "f1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "e3": "white pawn", "c4": "white knight", "d4": "white pawn", "a5": "black pawn", "d5": "black queen", "f5": "black pawn", "c6": "black pawn", "e6": "black bishop", "f6": "black king", "b7": "black pawn", "e7": "black pawn", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false }, "candidate": { "uci": "c4a5", "san": "Nxa5" }, "after": { "fen": "rn3bnr/1p2p1pp/2p1bk2/N2q1p2/3P4/4P3/PPP2PPP/R1BQ1RK1 b - - 0 10", "side_to_move": "black", "pieces": { "a1": "white rook", "c1": "white bishop", "d1": "white queen", "f1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "e3": "white pawn", "d4": "white pawn", "a5": "white knight", "d5": "black queen", "f5": "black pawn", "c6": "black pawn", "e6": "black bishop", "f6": "black king", "b7": "black pawn", "e7": "black pawn", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false } }, "questions": { "loses_material": { "type": "noul", "instructions": "After the candidate White move, can Black force a net material gain soon? Check legal captures, recaptures and attacks on ALL White pieces. A fair exchange is not a loss; merely being attacked is not enough. Assess from White perspective." }, "allows_mate": { "type": "noul", "instructions": "Can Black checkmate White on its very next move in the after position?" }, "quality": { "type": "score", "instructions": "Evaluate the candidate for White after Black responds strongly. Do not reward a check that sacrifices material without compensation.", "criteria": [ "Losing blunder", "Dubious or wasteful", "Playable", "Good", "Winning or excellent" ] }, "black_reply": { "type": "choice", "instructions": "Play Black in the AFTER position. Choose the strongest reply to punish White, especially hanging pieces or checkmate. Every offered move is legal.", "criteria": { "a8a5": "Rxa5", "a8a6": "Ra6", "a8a7": "Ra7", "b7b5": "b5", "b7b6": "b6", "b8a6": "Na6", "b8d7": "Nd7", "c6c5": "c5", "d5a2": "Qxa2", "d5a5": "Qxa5", "d5b3": "Qb3", "d5b5": "Qb5", "d5c4": "Qc4", "d5c5": "Qc5", "d5d4": "Qxd4", "d5d6": "Qd6", "d5d7": "Qd7", "d5d8": "Qd8", "d5e4": "Qe4", "d5e5": "Qe5", "d5f3": "Qf3", "d5g2": "Qxg2+", "e6c8": "Bc8", "e6d7": "Bd7", "e6f7": "Bf7", "f5f4": "f4", "f6f7": "Kf7", "f6g5": "Kg5", "f6g6": "Kg6", "g7g5": "g5", "g7g6": "g6", "g8h6": "Nh6", "h7h5": "h5", "h7h6": "h6" } } } }, "safety": null, "turn": 10, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "loses_material": { "type": "noul", "noul": 0.47 }, "allows_mate": { "type": "noul", "noul": 0.09 }, "quality": { "type": "score", "score": 2.08, "legend": { "0": "Losing blunder", "1": "Dubious or wasteful", "2": "Playable", "3": "Good", "4": "Winning or excellent" }, "probabilities": { "0": 0.12, "1": 0.23, "2": 0.22, "3": 0.31, "4": 0.12 }, "confidence": 0.04 }, "black_reply": { "type": "choice", "choice": "d5a5", "probabilities": { "b8d7": 0, "d5b5": 0.01, "h7h5": 0, "e6f7": 0, "a8a7": 0, "d5f3": 0.01, "h7h6": 0, "b7b6": 0, "d5c4": 0.02, "g8h6": 0, "d5a5": 0.38, "e6c8": 0, "d5d4": 0.03, "a8a6": 0, "d5d7": 0, "d5c5": 0.01, "d5e4": 0.01, "b8a6": 0, "g7g5": 0, "f6g5": 0, "f5f4": 0, "f6g6": 0, "d5d8": 0, "d5b3": 0.01, "f6f7": 0, "d5e5": 0, "e6d7": 0, "d5d6": 0, "b7b5": 0, "g7g6": 0, "c6c5": 0, "d5g2": 0.15000000000000002, "a8a5": 0.34, "d5a2": 0.03 }, "confidence": 0.35 } }, "usage": { "input_tokens": 1806, "output_tokens": 410, "cost": 7.5852e-05 }, "provider": "TypeSafe" }, "elapsed_s": 1.3639071088982746 }, { "stage": "review", "candidate": "d1g4", "request": { "model": "typesafe/jev-1.13", "state": { "before": { "fen": "rn3bnr/1p2p1pp/2p1bk2/p2q1p2/2NP4/4P3/PPP2PPP/R1BQ1RK1 w - - 0 10", "side_to_move": "white", "pieces": { "a1": "white rook", "c1": "white bishop", "d1": "white queen", "f1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "e3": "white pawn", "c4": "white knight", "d4": "white pawn", "a5": "black pawn", "d5": "black queen", "f5": "black pawn", "c6": "black pawn", "e6": "black bishop", "f6": "black king", "b7": "black pawn", "e7": "black pawn", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false }, "candidate": { "uci": "d1g4", "san": "Qg4" }, "after": { "fen": "rn3bnr/1p2p1pp/2p1bk2/p2q1p2/2NP2Q1/4P3/PPP2PPP/R1B2RK1 b - - 1 10", "side_to_move": "black", "pieces": { "a1": "white rook", "c1": "white bishop", "f1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "e3": "white pawn", "c4": "white knight", "d4": "white pawn", "g4": "white queen", "a5": "black pawn", "d5": "black queen", "f5": "black pawn", "c6": "black pawn", "e6": "black bishop", "f6": "black king", "b7": "black pawn", "e7": "black pawn", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false } }, "questions": { "loses_material": { "type": "noul", "instructions": "After the candidate White move, can Black force a net material gain soon? Check legal captures, recaptures and attacks on ALL White pieces. A fair exchange is not a loss; merely being attacked is not enough. Assess from White perspective." }, "allows_mate": { "type": "noul", "instructions": "Can Black checkmate White on its very next move in the after position?" }, "quality": { "type": "score", "instructions": "Evaluate the candidate for White after Black responds strongly. Do not reward a check that sacrifices material without compensation.", "criteria": [ "Losing blunder", "Dubious or wasteful", "Playable", "Good", "Winning or excellent" ] }, "black_reply": { "type": "choice", "instructions": "Play Black in the AFTER position. Choose the strongest reply to punish White, especially hanging pieces or checkmate. Every offered move is legal.", "criteria": { "a5a4": "a4", "a8a6": "Ra6", "a8a7": "Ra7", "b7b5": "b5", "b7b6": "b6", "b8a6": "Na6", "b8d7": "Nd7", "c6c5": "c5", "d5b5": "Qb5", "d5c4": "Qxc4", "d5c5": "Qc5", "d5d4": "Qxd4", "d5d6": "Qd6", "d5d7": "Qd7", "d5d8": "Qd8", "d5e4": "Qe4", "d5e5": "Qe5", "d5f3": "Qf3", "d5g2": "Qxg2+", "e6c8": "Bc8", "e6d7": "Bd7", "e6f7": "Bf7", "f5f4": "f4", "f5g4": "fxg4", "f6f7": "Kf7", "g7g5": "g5", "g7g6": "g6", "g8h6": "Nh6", "h7h5": "h5", "h7h6": "h6" } } } }, "safety": null, "turn": 10, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "loses_material": { "type": "noul", "noul": 0.43 }, "allows_mate": { "type": "noul", "noul": 0.16 }, "quality": { "type": "score", "score": 1.5, "legend": { "0": "Losing blunder", "1": "Dubious or wasteful", "2": "Playable", "3": "Good", "4": "Winning or excellent" }, "probabilities": { "0": 0.16, "1": 0.41000000000000003, "2": 0.25, "3": 0.15, "4": 0.03 }, "confidence": 0.31 }, "black_reply": { "type": "choice", "choice": "f5g4", "probabilities": { "f6f7": 0, "d5e5": 0.01, "g7g6": 0.01, "d5d6": 0, "h7h6": 0, "d5c5": 0.01, "b8a6": 0, "a8a7": 0, "d5e4": 0.01, "f5g4": 0.59, "g7g5": 0.01, "g8h6": 0, "c6c5": 0, "a5a4": 0, "e6c8": 0, "b7b6": 0, "e6f7": 0, "d5d7": 0, "d5b5": 0.01, "d5d8": 0, "h7h5": 0, "a8a6": 0, "b7b5": 0, "e6d7": 0, "d5f3": 0.05, "d5c4": 0.14, "d5g2": 0.09, "b8d7": 0, "d5d4": 0.07, "f5f4": 0 }, "confidence": 0.56 } }, "usage": { "input_tokens": 1751, "output_tokens": 370, "cost": 7.3542e-05 }, "provider": "TypeSafe" }, "elapsed_s": 1.3889846849488094 }, { "stage": "review", "candidate": "c4d6", "request": { "model": "typesafe/jev-1.13", "state": { "before": { "fen": "rn3bnr/1p2p1pp/2p1bk2/p2q1p2/2NP4/4P3/PPP2PPP/R1BQ1RK1 w - - 0 10", "side_to_move": "white", "pieces": { "a1": "white rook", "c1": "white bishop", "d1": "white queen", "f1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "e3": "white pawn", "c4": "white knight", "d4": "white pawn", "a5": "black pawn", "d5": "black queen", "f5": "black pawn", "c6": "black pawn", "e6": "black bishop", "f6": "black king", "b7": "black pawn", "e7": "black pawn", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false }, "candidate": { "uci": "c4d6", "san": "Nd6" }, "after": { "fen": "rn3bnr/1p2p1pp/2pNbk2/p2q1p2/3P4/4P3/PPP2PPP/R1BQ1RK1 b - - 1 10", "side_to_move": "black", "pieces": { "a1": "white rook", "c1": "white bishop", "d1": "white queen", "f1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "e3": "white pawn", "d4": "white pawn", "a5": "black pawn", "d5": "black queen", "f5": "black pawn", "c6": "black pawn", "d6": "white knight", "e6": "black bishop", "f6": "black king", "b7": "black pawn", "e7": "black pawn", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false } }, "questions": { "loses_material": { "type": "noul", "instructions": "After the candidate White move, can Black force a net material gain soon? Check legal captures, recaptures and attacks on ALL White pieces. A fair exchange is not a loss; merely being attacked is not enough. Assess from White perspective." }, "allows_mate": { "type": "noul", "instructions": "Can Black checkmate White on its very next move in the after position?" }, "quality": { "type": "score", "instructions": "Evaluate the candidate for White after Black responds strongly. Do not reward a check that sacrifices material without compensation.", "criteria": [ "Losing blunder", "Dubious or wasteful", "Playable", "Good", "Winning or excellent" ] }, "black_reply": { "type": "choice", "instructions": "Play Black in the AFTER position. Choose the strongest reply to punish White, especially hanging pieces or checkmate. Every offered move is legal.", "criteria": { "a5a4": "a4", "a8a6": "Ra6", "a8a7": "Ra7", "b7b5": "b5", "b7b6": "b6", "b8a6": "Na6", "b8d7": "Nd7", "c6c5": "c5", "d5a2": "Qxa2", "d5b3": "Qb3", "d5b5": "Qb5", "d5c4": "Qc4", "d5c5": "Qc5", "d5d4": "Qxd4", "d5d6": "Qxd6", "d5e4": "Qe4", "d5e5": "Qe5", "d5f3": "Qf3", "d5g2": "Qxg2+", "e6c8": "Bc8", "e6d7": "Bd7", "e6f7": "Bf7", "e7d6": "exd6", "f5f4": "f4", "f6g5": "Kg5", "f6g6": "Kg6", "g7g5": "g5", "g7g6": "g6", "g8h6": "Nh6", "h7h5": "h5", "h7h6": "h6" } } } }, "safety": null, "turn": 10, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "loses_material": { "type": "noul", "noul": 0.52 }, "allows_mate": { "type": "noul", "noul": 0.14 }, "quality": { "type": "score", "score": 1.75, "legend": { "0": "Losing blunder", "1": "Dubious or wasteful", "2": "Playable", "3": "Good", "4": "Winning or excellent" }, "probabilities": { "0": 0.17, "1": 0.3, "2": 0.22, "3": 0.23, "4": 0.08 }, "confidence": 0.09 }, "black_reply": { "type": "choice", "choice": "d5d6", "probabilities": { "a8a6": 0, "d5d4": 0.08, "d5b5": 0.01, "b7b6": 0, "g7g6": 0, "h7h5": 0, "d5g2": 0.17, "d5c4": 0.01, "b8a6": 0, "a5a4": 0, "b7b5": 0, "e6c8": 0, "f6g6": 0, "c6c5": 0, "h7h6": 0, "d5e4": 0.01, "d5c5": 0.01, "e6d7": 0.01, "e6f7": 0, "g7g5": 0, "f6g5": 0, "e7d6": 0.17, "d5d6": 0.46, "d5e5": 0.01, "b8d7": 0.01, "d5f3": 0.02, "a8a7": 0, "d5a2": 0.02, "d5b3": 0, "f5f4": 0, "g8h6": 0 }, "confidence": 0.43 } }, "usage": { "input_tokens": 1763, "output_tokens": 380, "cost": 7.4046e-05 }, "provider": "TypeSafe" }, "elapsed_s": 1.3800410840194672 }, { "stage": "selection", "candidate": null, "request": { "model": "typesafe/jev-1.13", "state": { "position": { "fen": "rn3bnr/1p2p1pp/2p1bk2/p2q1p2/2NP4/4P3/PPP2PPP/R1BQ1RK1 w - - 0 10", "board": "8 r n . . . b n r\n7 . p . . p . p p\n6 . . p . b k . .\n5 p . . q . p . .\n4 . . N P . . . .\n3 . . . . P . . .\n2 P P P . . P P P\n1 R . B Q . R K .\n a b c d e f g h", "legend": "Uppercase = White, lowercase = Black. P pawn, N knight, B bishop, R rook, Q queen, K king; . empty.", "you_play": "White", "in_check": false, "history_uci": [ "g1f3", "a7a5", "b1c3", "f7f5", "d2d4", "e8f7", "e2e3", "c7c6", "f1c4", "d7d5", "e1g1", "d5c4", "f3e5", "f7f6", "e5c4", "c8e6", "c3d5", "d8d5" ], "history_san": [ "Nf3", "a5", "Nc3", "f5", "d4", "Kf7", "e3", "c6", "Bc4+", "d5", "O-O", "dxc4", "Ne5+", "Kf6", "Nxc4", "Be6", "Nd5+", "Qxd5" ], "pieces": { "white": { "a1": "rook", "c1": "bishop", "d1": "queen", "f1": "rook", "g1": "king", "a2": "pawn", "b2": "pawn", "c2": "pawn", "f2": "pawn", "g2": "pawn", "h2": "pawn", "e3": "pawn", "c4": "knight", "d4": "pawn" }, "black": { "a5": "pawn", "d5": "queen", "f5": "pawn", "c6": "pawn", "e6": "bishop", "f6": "king", "b7": "pawn", "e7": "pawn", "g7": "pawn", "h7": "pawn", "a8": "rook", "b8": "knight", "f8": "bishop", "g8": "knight", "h8": "rook" } } }, "reviews": [ { "uci": "c4a5", "proposal_probability": 0.48, "loss_probability": 0.47, "mate_probability": 0.09, "quality": 2.08, "black_reply": "d5a5", "after_model_reply": { "fen": "rn3bnr/1p2p1pp/2p1bk2/q4p2/3P4/4P3/PPP2PPP/R1BQ1RK1 w - - 0 11", "side_to_move": "white", "pieces": { "a1": "white rook", "c1": "white bishop", "d1": "white queen", "f1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "e3": "white pawn", "d4": "white pawn", "a5": "black queen", "f5": "black pawn", "c6": "black pawn", "e6": "black bishop", "f6": "black king", "b7": "black pawn", "e7": "black pawn", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false } }, { "uci": "d1g4", "proposal_probability": 0.060000000000000005, "loss_probability": 0.43, "mate_probability": 0.16, "quality": 1.5, "black_reply": "f5g4", "after_model_reply": { "fen": "rn3bnr/1p2p1pp/2p1bk2/p2q4/2NP2p1/4P3/PPP2PPP/R1B2RK1 w - - 0 11", "side_to_move": "white", "pieces": { "a1": "white rook", "c1": "white bishop", "f1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "e3": "white pawn", "c4": "white knight", "d4": "white pawn", "g4": "black pawn", "a5": "black pawn", "d5": "black queen", "c6": "black pawn", "e6": "black bishop", "f6": "black king", "b7": "black pawn", "e7": "black pawn", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false } }, { "uci": "c4d6", "proposal_probability": 0.05, "loss_probability": 0.52, "mate_probability": 0.14, "quality": 1.75, "black_reply": "d5d6", "after_model_reply": { "fen": "rn3bnr/1p2p1pp/2pqbk2/p4p2/3P4/4P3/PPP2PPP/R1BQ1RK1 w - - 0 11", "side_to_move": "white", "pieces": { "a1": "white rook", "c1": "white bishop", "d1": "white queen", "f1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "e3": "white pawn", "d4": "white pawn", "a5": "black pawn", "f5": "black pawn", "c6": "black pawn", "d6": "black queen", "e6": "black bishop", "f6": "black king", "b7": "black pawn", "e7": "black pawn", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false } } ], "warning": "Reviews and Black replies are fallible predictions of the same Jev model, not verified engine evaluations." }, "questions": { "move": { "type": "choice", "instructions": "Choose the best White move from the reviewed candidates. Independently check each hypothetical Black reply, captures and recaptures. Prefer avoiding material loss, then useful progress and king safety. Reviews may be wrong. A high proposal probability does not prove a good move.", "criteria": { "c4a5": "knight c4 to a5; captures pawn; SAN Nxa5", "d1g4": "queen d1 to g4; SAN Qg4", "c4d6": "knight c4 to d6; SAN Nd6" } } } }, "safety": null, "turn": 10, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "move": { "type": "choice", "choice": "c4a5", "probabilities": { "d1g4": 0.28, "c4d6": 0.26, "c4a5": 0.46 }, "confidence": 0.19 } }, "usage": { "input_tokens": 2499, "output_tokens": 50, "cost": 0.000104958 }, "provider": "TypeSafe" }, "elapsed_s": 1.3936399780213833 }, { "stage": "proposal", "candidate": null, "request": { "model": "typesafe/jev-1.13", "state": { "fen": "rn3bnr/1p2p1pp/2p1bk2/q4p2/3P4/4P3/PPP2PPP/R1BQ1RK1 w - - 0 11", "board": "8 r n . . . b n r\n7 . p . . p . p p\n6 . . p . b k . .\n5 q . . . . p . .\n4 . . . P . . . .\n3 . . . . P . . .\n2 P P P . . P P P\n1 R . B Q . R K .\n a b c d e f g h", "legend": "Uppercase = White, lowercase = Black. P pawn, N knight, B bishop, R rook, Q queen, K king; . empty.", "you_play": "White", "in_check": false, "history_uci": [ "g1f3", "a7a5", "b1c3", "f7f5", "d2d4", "e8f7", "e2e3", "c7c6", "f1c4", "d7d5", "e1g1", "d5c4", "f3e5", "f7f6", "e5c4", "c8e6", "c3d5", "d8d5", "c4a5", "d5a5" ], "history_san": [ "Nf3", "a5", "Nc3", "f5", "d4", "Kf7", "e3", "c6", "Bc4+", "d5", "O-O", "dxc4", "Ne5+", "Kf6", "Nxc4", "Be6", "Nd5+", "Qxd5", "Nxa5", "Qxa5" ], "pieces": { "white": { "a1": "rook", "c1": "bishop", "d1": "queen", "f1": "rook", "g1": "king", "a2": "pawn", "b2": "pawn", "c2": "pawn", "f2": "pawn", "g2": "pawn", "h2": "pawn", "e3": "pawn", "d4": "pawn" }, "black": { "a5": "queen", "f5": "pawn", "c6": "pawn", "e6": "bishop", "f6": "king", "b7": "pawn", "e7": "pawn", "g7": "pawn", "h7": "pawn", "a8": "rook", "b8": "knight", "f8": "bishop", "g8": "knight", "h8": "rook" } } }, "questions": { "move": { "type": "choice", "instructions": "Choose one legal White move. You alone evaluate the moves; their list is unranked. Use the explicit piece locations to check the destination and any lines opened by moving. First consider whether Black can capture your queen, rook or minor pieces after the move. Count both sides of an exchange: pawn=1, knight/bishop=3, rook=5, queen=9. Prefer keeping material unless you can establish a concrete profitable continuation. Giving check is NOT compensation for losing a piece. When no tactic works, develop or improve a safe piece. Protect your king and aim for checkmate. Read the history to avoid purposeless repeats when ahead; a draw can be useful when losing. Return one offered UCI move.", "criteria": { "a1b1": "rook a1 to b1; SAN Rb1", "a2a3": "pawn a2 to a3; SAN a3", "a2a4": "pawn a2 to a4; SAN a4", "b2b3": "pawn b2 to b3; SAN b3", "b2b4": "pawn b2 to b4; SAN b4", "c1d2": "bishop c1 to d2; SAN Bd2", "c2c3": "pawn c2 to c3; SAN c3", "c2c4": "pawn c2 to c4; SAN c4", "d1d2": "queen d1 to d2; SAN Qd2", "d1d3": "queen d1 to d3; SAN Qd3", "d1e1": "queen d1 to e1; SAN Qe1", "d1e2": "queen d1 to e2; SAN Qe2", "d1f3": "queen d1 to f3; SAN Qf3", "d1g4": "queen d1 to g4; SAN Qg4", "d1h5": "queen d1 to h5; SAN Qh5", "d4d5": "pawn d4 to d5; SAN d5", "e3e4": "pawn e3 to e4; SAN e4", "f1e1": "rook f1 to e1; SAN Re1", "f2f3": "pawn f2 to f3; SAN f3", "f2f4": "pawn f2 to f4; SAN f4", "g1h1": "king g1 to h1; SAN Kh1", "g2g3": "pawn g2 to g3; SAN g3", "g2g4": "pawn g2 to g4; SAN g4", "h2h3": "pawn h2 to h3; SAN h3", "h2h4": "pawn h2 to h4; SAN h4" } } } }, "safety": null, "turn": 11, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "move": { "type": "choice", "choice": "d4d5", "probabilities": { "g2g3": 0.02, "g2g4": 0.01, "d1g4": 0.05, "g1h1": 0.02, "h2h3": 0.01, "d1f3": 0.04, "a2a4": 0.06, "d1h5": 0.07, "a2a3": 0.04, "b2b4": 0.03, "b2b3": 0.03, "a1b1": 0.03, "f2f4": 0.02, "d1e1": 0.04, "h2h4": 0.01, "c2c4": 0.03, "c2c3": 0.04, "f1e1": 0.06, "d1d3": 0.06, "c1d2": 0.07, "d1e2": 0.05, "f2f3": 0.01, "d4d5": 0.09999999999999999, "e3e4": 0.05, "d1d2": 0.05 }, "confidence": 0.05 } }, "usage": { "input_tokens": 1770, "output_tokens": 270, "cost": 7.434e-05 }, "provider": "TypeSafe" }, "elapsed_s": 1.686252321000211 }, { "stage": "review", "candidate": "d4d5", "request": { "model": "typesafe/jev-1.13", "state": { "before": { "fen": "rn3bnr/1p2p1pp/2p1bk2/q4p2/3P4/4P3/PPP2PPP/R1BQ1RK1 w - - 0 11", "side_to_move": "white", "pieces": { "a1": "white rook", "c1": "white bishop", "d1": "white queen", "f1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "e3": "white pawn", "d4": "white pawn", "a5": "black queen", "f5": "black pawn", "c6": "black pawn", "e6": "black bishop", "f6": "black king", "b7": "black pawn", "e7": "black pawn", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false }, "candidate": { "uci": "d4d5", "san": "d5" }, "after": { "fen": "rn3bnr/1p2p1pp/2p1bk2/q2P1p2/8/4P3/PPP2PPP/R1BQ1RK1 b - - 0 11", "side_to_move": "black", "pieces": { "a1": "white rook", "c1": "white bishop", "d1": "white queen", "f1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "e3": "white pawn", "a5": "black queen", "d5": "white pawn", "f5": "black pawn", "c6": "black pawn", "e6": "black bishop", "f6": "black king", "b7": "black pawn", "e7": "black pawn", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false } }, "questions": { "loses_material": { "type": "noul", "instructions": "After the candidate White move, can Black force a net material gain soon? Check legal captures, recaptures and attacks on ALL White pieces. A fair exchange is not a loss; merely being attacked is not enough. Assess from White perspective." }, "allows_mate": { "type": "noul", "instructions": "Can Black checkmate White on its very next move in the after position?" }, "quality": { "type": "score", "instructions": "Evaluate the candidate for White after Black responds strongly. Do not reward a check that sacrifices material without compensation.", "criteria": [ "Losing blunder", "Dubious or wasteful", "Playable", "Good", "Winning or excellent" ] }, "black_reply": { "type": "choice", "instructions": "Play Black in the AFTER position. Choose the strongest reply to punish White, especially hanging pieces or checkmate. Every offered move is legal.", "criteria": { "a5a2": "Qxa2", "a5a3": "Qa3", "a5a4": "Qa4", "a5a6": "Qa6", "a5a7": "Qa7", "a5b4": "Qb4", "a5b5": "Qb5", "a5b6": "Qb6", "a5c3": "Qc3", "a5c5": "Qc5", "a5c7": "Qc7", "a5d2": "Qd2", "a5d5": "Qxd5", "a5d8": "Qd8", "a5e1": "Qe1", "a8a6": "Ra6", "a8a7": "Ra7", "b7b5": "b5", "b7b6": "b6", "b8a6": "Na6", "b8d7": "Nd7", "c6c5": "c5", "c6d5": "cxd5", "e6c8": "Bc8", "e6d5": "Bxd5", "e6d7": "Bd7", "e6f7": "Bf7", "f5f4": "f4", "f6e5": "Ke5", "f6f7": "Kf7", "f6g5": "Kg5", "f6g6": "Kg6", "g7g5": "g5", "g7g6": "g6", "g8h6": "Nh6", "h7h5": "h5", "h7h6": "h6" } } } }, "safety": null, "turn": 11, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "loses_material": { "type": "noul", "noul": 0.38 }, "allows_mate": { "type": "noul", "noul": 0.09 }, "quality": { "type": "score", "score": 1.86, "legend": { "0": "Losing blunder", "1": "Dubious or wasteful", "2": "Playable", "3": "Good", "4": "Winning or excellent" }, "probabilities": { "0": 0.11, "1": 0.27, "2": 0.31, "3": 0.27, "4": 0.04 }, "confidence": 0.3 }, "black_reply": { "type": "choice", "choice": "a5d5", "probabilities": { "a5c5": 0.01, "a5d8": 0.01, "a5d2": 0.02, "g7g5": 0, "e6d7": 0.01, "a8a6": 0, "f6f7": 0, "f6e5": 0.01, "c6d5": 0.21000000000000002, "a5a3": 0, "a5a2": 0.05, "b7b5": 0, "a5b6": 0, "b7b6": 0, "a5e1": 0.02, "a5a4": 0, "e6f7": 0, "h7h6": 0, "a5c3": 0.02, "b8d7": 0, "a5b5": 0, "b8a6": 0, "a5c7": 0, "a5a7": 0, "g8h6": 0, "f6g6": 0, "h7h5": 0, "e6c8": 0, "f6g5": 0, "a5a6": 0, "a8a7": 0, "a5d5": 0.42, "a5b4": 0.01, "g7g6": 0, "c6c5": 0.01, "f5f4": 0, "e6d5": 0.2 }, "confidence": 0.4 } }, "usage": { "input_tokens": 1814, "output_tokens": 440, "cost": 7.6188e-05 }, "provider": "TypeSafe" }, "elapsed_s": 1.4739442220889032 }, { "stage": "review", "candidate": "c1d2", "request": { "model": "typesafe/jev-1.13", "state": { "before": { "fen": "rn3bnr/1p2p1pp/2p1bk2/q4p2/3P4/4P3/PPP2PPP/R1BQ1RK1 w - - 0 11", "side_to_move": "white", "pieces": { "a1": "white rook", "c1": "white bishop", "d1": "white queen", "f1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "e3": "white pawn", "d4": "white pawn", "a5": "black queen", "f5": "black pawn", "c6": "black pawn", "e6": "black bishop", "f6": "black king", "b7": "black pawn", "e7": "black pawn", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false }, "candidate": { "uci": "c1d2", "san": "Bd2" }, "after": { "fen": "rn3bnr/1p2p1pp/2p1bk2/q4p2/3P4/4P3/PPPB1PPP/R2Q1RK1 b - - 1 11", "side_to_move": "black", "pieces": { "a1": "white rook", "d1": "white queen", "f1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "d2": "white bishop", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "e3": "white pawn", "d4": "white pawn", "a5": "black queen", "f5": "black pawn", "c6": "black pawn", "e6": "black bishop", "f6": "black king", "b7": "black pawn", "e7": "black pawn", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false } }, "questions": { "loses_material": { "type": "noul", "instructions": "After the candidate White move, can Black force a net material gain soon? Check legal captures, recaptures and attacks on ALL White pieces. A fair exchange is not a loss; merely being attacked is not enough. Assess from White perspective." }, "allows_mate": { "type": "noul", "instructions": "Can Black checkmate White on its very next move in the after position?" }, "quality": { "type": "score", "instructions": "Evaluate the candidate for White after Black responds strongly. Do not reward a check that sacrifices material without compensation.", "criteria": [ "Losing blunder", "Dubious or wasteful", "Playable", "Good", "Winning or excellent" ] }, "black_reply": { "type": "choice", "instructions": "Play Black in the AFTER position. Choose the strongest reply to punish White, especially hanging pieces or checkmate. Every offered move is legal.", "criteria": { "a5a2": "Qxa2", "a5a3": "Qa3", "a5a4": "Qa4", "a5a6": "Qa6", "a5a7": "Qa7", "a5b4": "Qb4", "a5b5": "Qb5", "a5b6": "Qb6", "a5c3": "Qc3", "a5c5": "Qc5", "a5c7": "Qc7", "a5d2": "Qxd2", "a5d5": "Qd5", "a5d8": "Qd8", "a5e5": "Qe5", "a8a6": "Ra6", "a8a7": "Ra7", "b7b5": "b5", "b7b6": "b6", "b8a6": "Na6", "b8d7": "Nd7", "c6c5": "c5", "e6a2": "Bxa2", "e6b3": "Bb3", "e6c4": "Bc4", "e6c8": "Bc8", "e6d5": "Bd5", "e6d7": "Bd7", "e6f7": "Bf7", "f5f4": "f4", "f6f7": "Kf7", "f6g5": "Kg5", "f6g6": "Kg6", "g7g5": "g5", "g7g6": "g6", "g8h6": "Nh6", "h7h5": "h5", "h7h6": "h6" } } } }, "safety": null, "turn": 11, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "loses_material": { "type": "noul", "noul": 0.29 }, "allows_mate": { "type": "noul", "noul": 0.12 }, "quality": { "type": "score", "score": 1.79, "legend": { "0": "Losing blunder", "1": "Dubious or wasteful", "2": "Playable", "3": "Good", "4": "Winning or excellent" }, "probabilities": { "0": 0.04, "1": 0.3, "2": 0.49, "3": 0.16, "4": 0.01 }, "confidence": 0.53 }, "black_reply": { "type": "choice", "choice": "a5d2", "probabilities": { "g8h6": 0, "e6d5": 0.01, "b8d7": 0, "e6a2": 0.05, "a8a7": 0, "f6g6": 0, "b8a6": 0, "a5a7": 0, "a5a6": 0, "e6d7": 0, "h7h6": 0, "a5c3": 0.02, "g7g5": 0, "a5d2": 0.8, "f6g5": 0, "a5b6": 0, "e6b3": 0.01, "a5a3": 0.01, "a5c7": 0, "a5a2": 0.02, "f6f7": 0, "b7b6": 0, "a5d5": 0.02, "e6f7": 0, "a5d8": 0, "a5a4": 0, "e6c8": 0, "g7g6": 0, "h7h5": 0, "a5e5": 0.01, "e6c4": 0.01, "b7b5": 0, "f5f4": 0, "a5b4": 0.01, "a8a6": 0, "a5c5": 0.01, "c6c5": 0, "a5b5": 0.01 }, "confidence": 0.78 } }, "usage": { "input_tokens": 1830, "output_tokens": 450, "cost": 7.686e-05 }, "provider": "TypeSafe" }, "elapsed_s": 1.4179088739911094 }, { "stage": "review", "candidate": "d1h5", "request": { "model": "typesafe/jev-1.13", "state": { "before": { "fen": "rn3bnr/1p2p1pp/2p1bk2/q4p2/3P4/4P3/PPP2PPP/R1BQ1RK1 w - - 0 11", "side_to_move": "white", "pieces": { "a1": "white rook", "c1": "white bishop", "d1": "white queen", "f1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "e3": "white pawn", "d4": "white pawn", "a5": "black queen", "f5": "black pawn", "c6": "black pawn", "e6": "black bishop", "f6": "black king", "b7": "black pawn", "e7": "black pawn", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false }, "candidate": { "uci": "d1h5", "san": "Qh5" }, "after": { "fen": "rn3bnr/1p2p1pp/2p1bk2/q4p1Q/3P4/4P3/PPP2PPP/R1B2RK1 b - - 1 11", "side_to_move": "black", "pieces": { "a1": "white rook", "c1": "white bishop", "f1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "e3": "white pawn", "d4": "white pawn", "a5": "black queen", "f5": "black pawn", "h5": "white queen", "c6": "black pawn", "e6": "black bishop", "f6": "black king", "b7": "black pawn", "e7": "black pawn", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false } }, "questions": { "loses_material": { "type": "noul", "instructions": "After the candidate White move, can Black force a net material gain soon? Check legal captures, recaptures and attacks on ALL White pieces. A fair exchange is not a loss; merely being attacked is not enough. Assess from White perspective." }, "allows_mate": { "type": "noul", "instructions": "Can Black checkmate White on its very next move in the after position?" }, "quality": { "type": "score", "instructions": "Evaluate the candidate for White after Black responds strongly. Do not reward a check that sacrifices material without compensation.", "criteria": [ "Losing blunder", "Dubious or wasteful", "Playable", "Good", "Winning or excellent" ] }, "black_reply": { "type": "choice", "instructions": "Play Black in the AFTER position. Choose the strongest reply to punish White, especially hanging pieces or checkmate. Every offered move is legal.", "criteria": { "a5a2": "Qxa2", "a5a3": "Qa3", "a5a4": "Qa4", "a5a6": "Qa6", "a5a7": "Qa7", "a5b4": "Qb4", "a5b5": "Qb5", "a5b6": "Qb6", "a5c3": "Qc3", "a5c5": "Qc5", "a5c7": "Qc7", "a5d2": "Qd2", "a5d5": "Qd5", "a5d8": "Qd8", "a5e1": "Qe1", "a5e5": "Qe5", "a8a6": "Ra6", "a8a7": "Ra7", "b7b5": "b5", "b7b6": "b6", "b8a6": "Na6", "b8d7": "Nd7", "c6c5": "c5", "e6a2": "Bxa2", "e6b3": "Bb3", "e6c4": "Bc4", "e6c8": "Bc8", "e6d5": "Bd5", "e6d7": "Bd7", "e6f7": "Bf7", "f5f4": "f4", "g7g5": "g5", "g7g6": "g6", "g8h6": "Nh6", "h7h6": "h6" } } } }, "safety": null, "turn": 11, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "loses_material": { "type": "noul", "noul": 0.41 }, "allows_mate": { "type": "noul", "noul": 0.18 }, "quality": { "type": "score", "score": 1.5, "legend": { "0": "Losing blunder", "1": "Dubious or wasteful", "2": "Playable", "3": "Good", "4": "Winning or excellent" }, "probabilities": { "0": 0.18, "1": 0.38, "2": 0.22, "3": 0.17, "4": 0.05 }, "confidence": 0.28 }, "black_reply": { "type": "choice", "choice": "a5a2", "probabilities": { "e6c8": 0.01, "a5a3": 0.01, "g7g6": 0.04, "e6d7": 0.01, "c6c5": 0.01, "e6a2": 0.06, "a5c7": 0.01, "a5d5": 0.06, "a5b6": 0.01, "b8a6": 0, "a5a2": 0.19, "a5b5": 0.01, "a5e1": 0.09, "a5e5": 0.07, "h7h6": 0.02, "e6c4": 0.04, "e6b3": 0.01, "f5f4": 0.03, "b7b5": 0.01, "a5c3": 0.06, "a5d2": 0.04, "a8a7": 0, "e6d5": 0.03, "a5a6": 0, "a5c5": 0.02, "a5a7": 0.01, "b8d7": 0.01, "e6f7": 0.01, "g7g5": 0.03, "a5b4": 0.01, "b7b6": 0, "a5d8": 0.02, "a5a4": 0.01, "g8h6": 0.06, "a8a6": 0 }, "confidence": 0.17 } }, "usage": { "input_tokens": 1783, "output_tokens": 420, "cost": 7.4886e-05 }, "provider": "TypeSafe" }, "elapsed_s": 1.7150927250040695 }, { "stage": "selection", "candidate": null, "request": { "model": "typesafe/jev-1.13", "state": { "position": { "fen": "rn3bnr/1p2p1pp/2p1bk2/q4p2/3P4/4P3/PPP2PPP/R1BQ1RK1 w - - 0 11", "board": "8 r n . . . b n r\n7 . p . . p . p p\n6 . . p . b k . .\n5 q . . . . p . .\n4 . . . P . . . .\n3 . . . . P . . .\n2 P P P . . P P P\n1 R . B Q . R K .\n a b c d e f g h", "legend": "Uppercase = White, lowercase = Black. P pawn, N knight, B bishop, R rook, Q queen, K king; . empty.", "you_play": "White", "in_check": false, "history_uci": [ "g1f3", "a7a5", "b1c3", "f7f5", "d2d4", "e8f7", "e2e3", "c7c6", "f1c4", "d7d5", "e1g1", "d5c4", "f3e5", "f7f6", "e5c4", "c8e6", "c3d5", "d8d5", "c4a5", "d5a5" ], "history_san": [ "Nf3", "a5", "Nc3", "f5", "d4", "Kf7", "e3", "c6", "Bc4+", "d5", "O-O", "dxc4", "Ne5+", "Kf6", "Nxc4", "Be6", "Nd5+", "Qxd5", "Nxa5", "Qxa5" ], "pieces": { "white": { "a1": "rook", "c1": "bishop", "d1": "queen", "f1": "rook", "g1": "king", "a2": "pawn", "b2": "pawn", "c2": "pawn", "f2": "pawn", "g2": "pawn", "h2": "pawn", "e3": "pawn", "d4": "pawn" }, "black": { "a5": "queen", "f5": "pawn", "c6": "pawn", "e6": "bishop", "f6": "king", "b7": "pawn", "e7": "pawn", "g7": "pawn", "h7": "pawn", "a8": "rook", "b8": "knight", "f8": "bishop", "g8": "knight", "h8": "rook" } } }, "reviews": [ { "uci": "d4d5", "proposal_probability": 0.09999999999999999, "loss_probability": 0.38, "mate_probability": 0.09, "quality": 1.86, "black_reply": "a5d5", "after_model_reply": { "fen": "rn3bnr/1p2p1pp/2p1bk2/3q1p2/8/4P3/PPP2PPP/R1BQ1RK1 w - - 0 12", "side_to_move": "white", "pieces": { "a1": "white rook", "c1": "white bishop", "d1": "white queen", "f1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "e3": "white pawn", "d5": "black queen", "f5": "black pawn", "c6": "black pawn", "e6": "black bishop", "f6": "black king", "b7": "black pawn", "e7": "black pawn", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false } }, { "uci": "c1d2", "proposal_probability": 0.07, "loss_probability": 0.29, "mate_probability": 0.12, "quality": 1.79, "black_reply": "a5d2", "after_model_reply": { "fen": "rn3bnr/1p2p1pp/2p1bk2/5p2/3P4/4P3/PPPq1PPP/R2Q1RK1 w - - 0 12", "side_to_move": "white", "pieces": { "a1": "white rook", "d1": "white queen", "f1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "d2": "black queen", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "e3": "white pawn", "d4": "white pawn", "f5": "black pawn", "c6": "black pawn", "e6": "black bishop", "f6": "black king", "b7": "black pawn", "e7": "black pawn", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false } }, { "uci": "d1h5", "proposal_probability": 0.07, "loss_probability": 0.41, "mate_probability": 0.18, "quality": 1.5, "black_reply": "a5a2", "after_model_reply": { "fen": "rn3bnr/1p2p1pp/2p1bk2/5p1Q/3P4/4P3/qPP2PPP/R1B2RK1 w - - 0 12", "side_to_move": "white", "pieces": { "a1": "white rook", "c1": "white bishop", "f1": "white rook", "g1": "white king", "a2": "black queen", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "e3": "white pawn", "d4": "white pawn", "f5": "black pawn", "h5": "white queen", "c6": "black pawn", "e6": "black bishop", "f6": "black king", "b7": "black pawn", "e7": "black pawn", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false } } ], "warning": "Reviews and Black replies are fallible predictions of the same Jev model, not verified engine evaluations." }, "questions": { "move": { "type": "choice", "instructions": "Choose the best White move from the reviewed candidates. Independently check each hypothetical Black reply, captures and recaptures. Prefer avoiding material loss, then useful progress and king safety. Reviews may be wrong. A high proposal probability does not prove a good move.", "criteria": { "d4d5": "pawn d4 to d5; SAN d5", "c1d2": "bishop c1 to d2; SAN Bd2", "d1h5": "queen d1 to h5; SAN Qh5" } } } }, "safety": null, "turn": 11, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "move": { "type": "choice", "choice": "c1d2", "probabilities": { "c1d2": 0.48, "d4d5": 0.33, "d1h5": 0.19 }, "confidence": 0.23 } }, "usage": { "input_tokens": 2448, "output_tokens": 50, "cost": 0.000102816 }, "provider": "TypeSafe" }, "elapsed_s": 1.320617288001813 }, { "stage": "proposal", "candidate": null, "request": { "model": "typesafe/jev-1.13", "state": { "fen": "rn1q1bnr/1p2p1pp/2p1bk2/5p2/3P4/4P3/PPPB1PPP/R2Q1RK1 w - - 2 12", "board": "8 r n . q . b n r\n7 . p . . p . p p\n6 . . p . b k . .\n5 . . . . . p . .\n4 . . . P . . . .\n3 . . . . P . . .\n2 P P P B . P P P\n1 R . . Q . R K .\n a b c d e f g h", "legend": "Uppercase = White, lowercase = Black. P pawn, N knight, B bishop, R rook, Q queen, K king; . empty.", "you_play": "White", "in_check": false, "history_uci": [ "g1f3", "a7a5", "b1c3", "f7f5", "d2d4", "e8f7", "e2e3", "c7c6", "f1c4", "d7d5", "e1g1", "d5c4", "f3e5", "f7f6", "e5c4", "c8e6", "c3d5", "d8d5", "c4a5", "d5a5", "c1d2", "a5d8" ], "history_san": [ "Nf3", "a5", "Nc3", "f5", "d4", "Kf7", "e3", "c6", "Bc4+", "d5", "O-O", "dxc4", "Ne5+", "Kf6", "Nxc4", "Be6", "Nd5+", "Qxd5", "Nxa5", "Qxa5", "Bd2", "Qd8" ], "pieces": { "white": { "a1": "rook", "d1": "queen", "f1": "rook", "g1": "king", "a2": "pawn", "b2": "pawn", "c2": "pawn", "d2": "bishop", "f2": "pawn", "g2": "pawn", "h2": "pawn", "e3": "pawn", "d4": "pawn" }, "black": { "f5": "pawn", "c6": "pawn", "e6": "bishop", "f6": "king", "b7": "pawn", "e7": "pawn", "g7": "pawn", "h7": "pawn", "a8": "rook", "b8": "knight", "d8": "queen", "f8": "bishop", "g8": "knight", "h8": "rook" } } }, "questions": { "move": { "type": "choice", "instructions": "Choose one legal White move. You alone evaluate the moves; their list is unranked. Use the explicit piece locations to check the destination and any lines opened by moving. First consider whether Black can capture your queen, rook or minor pieces after the move. Count both sides of an exchange: pawn=1, knight/bishop=3, rook=5, queen=9. Prefer keeping material unless you can establish a concrete profitable continuation. Giving check is NOT compensation for losing a piece. When no tactic works, develop or improve a safe piece. Protect your king and aim for checkmate. Read the history to avoid purposeless repeats when ahead; a draw can be useful when losing. Return one offered UCI move.", "criteria": { "a1b1": "rook a1 to b1; SAN Rb1", "a1c1": "rook a1 to c1; SAN Rc1", "a2a3": "pawn a2 to a3; SAN a3", "a2a4": "pawn a2 to a4; SAN a4", "b2b3": "pawn b2 to b3; SAN b3", "b2b4": "pawn b2 to b4; SAN b4", "c2c3": "pawn c2 to c3; SAN c3", "c2c4": "pawn c2 to c4; SAN c4", "d1b1": "queen d1 to b1; SAN Qb1", "d1c1": "queen d1 to c1; SAN Qc1", "d1e1": "queen d1 to e1; SAN Qe1", "d1e2": "queen d1 to e2; SAN Qe2", "d1f3": "queen d1 to f3; SAN Qf3", "d1g4": "queen d1 to g4; SAN Qg4", "d1h5": "queen d1 to h5; SAN Qh5", "d2a5": "bishop d2 to a5; SAN Ba5", "d2b4": "bishop d2 to b4; SAN Bb4", "d2c1": "bishop d2 to c1; SAN Bc1", "d2c3": "bishop d2 to c3; SAN Bc3", "d2e1": "bishop d2 to e1; SAN Be1", "d4d5": "pawn d4 to d5; SAN d5", "e3e4": "pawn e3 to e4; SAN e4", "f1e1": "rook f1 to e1; SAN Re1", "f2f3": "pawn f2 to f3; SAN f3", "f2f4": "pawn f2 to f4; SAN f4", "g1h1": "king g1 to h1; SAN Kh1", "g2g3": "pawn g2 to g3; SAN g3", "g2g4": "pawn g2 to g4; SAN g4", "h2h3": "pawn h2 to h3; SAN h3", "h2h4": "pawn h2 to h4; SAN h4" } } } }, "safety": null, "turn": 12, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "move": { "type": "choice", "choice": "d4d5", "probabilities": { "d1g4": 0.05, "g1h1": 0.02, "d2c1": 0.02, "d2b4": 0.05, "d2e1": 0.02, "d1f3": 0.03, "a2a3": 0.02, "b2b4": 0.02, "c2c4": 0.02, "a1c1": 0.06, "f1e1": 0.08, "d2c3": 0.07, "d1e2": 0.04, "f2f3": 0.01, "e3e4": 0.06, "d1b1": 0.02, "g2g3": 0.02, "g2g4": 0.01, "h2h3": 0.01, "a2a4": 0.02, "d1h5": 0.03, "b2b3": 0.02, "a1b1": 0.03, "c2c3": 0.04, "h2h4": 0.01, "d1c1": 0.02, "f2f4": 0.02, "d1e1": 0.03, "d4d5": 0.09999999999999999, "d2a5": 0.05 }, "confidence": 0.06 } }, "usage": { "input_tokens": 1921, "output_tokens": 320, "cost": 8.0682e-05 }, "provider": "TypeSafe" }, "elapsed_s": 1.7897102569695562 }, { "stage": "review", "candidate": "d4d5", "request": { "model": "typesafe/jev-1.13", "state": { "before": { "fen": "rn1q1bnr/1p2p1pp/2p1bk2/5p2/3P4/4P3/PPPB1PPP/R2Q1RK1 w - - 2 12", "side_to_move": "white", "pieces": { "a1": "white rook", "d1": "white queen", "f1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "d2": "white bishop", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "e3": "white pawn", "d4": "white pawn", "f5": "black pawn", "c6": "black pawn", "e6": "black bishop", "f6": "black king", "b7": "black pawn", "e7": "black pawn", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "d8": "black queen", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false }, "candidate": { "uci": "d4d5", "san": "d5" }, "after": { "fen": "rn1q1bnr/1p2p1pp/2p1bk2/3P1p2/8/4P3/PPPB1PPP/R2Q1RK1 b - - 0 12", "side_to_move": "black", "pieces": { "a1": "white rook", "d1": "white queen", "f1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "d2": "white bishop", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "e3": "white pawn", "d5": "white pawn", "f5": "black pawn", "c6": "black pawn", "e6": "black bishop", "f6": "black king", "b7": "black pawn", "e7": "black pawn", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "d8": "black queen", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false } }, "questions": { "loses_material": { "type": "noul", "instructions": "After the candidate White move, can Black force a net material gain soon? Check legal captures, recaptures and attacks on ALL White pieces. A fair exchange is not a loss; merely being attacked is not enough. Assess from White perspective." }, "allows_mate": { "type": "noul", "instructions": "Can Black checkmate White on its very next move in the after position?" }, "quality": { "type": "score", "instructions": "Evaluate the candidate for White after Black responds strongly. Do not reward a check that sacrifices material without compensation.", "criteria": [ "Losing blunder", "Dubious or wasteful", "Playable", "Good", "Winning or excellent" ] }, "black_reply": { "type": "choice", "instructions": "Play Black in the AFTER position. Choose the strongest reply to punish White, especially hanging pieces or checkmate. Every offered move is legal.", "criteria": { "a8a2": "Rxa2", "a8a3": "Ra3", "a8a4": "Ra4", "a8a5": "Ra5", "a8a6": "Ra6", "a8a7": "Ra7", "b7b5": "b5", "b7b6": "b6", "b8a6": "Na6", "b8d7": "Nd7", "c6c5": "c5", "c6d5": "cxd5", "d8a5": "Qa5", "d8b6": "Qb6", "d8c7": "Qc7", "d8c8": "Qc8", "d8d5": "Qxd5", "d8d6": "Qd6", "d8d7": "Qd7", "d8e8": "Qe8", "e6c8": "Bc8", "e6d5": "Bxd5", "e6d7": "Bd7", "e6f7": "Bf7", "f5f4": "f4", "f6e5": "Ke5", "f6f7": "Kf7", "f6g5": "Kg5", "f6g6": "Kg6", "g7g5": "g5", "g7g6": "g6", "g8h6": "Nh6", "h7h5": "h5", "h7h6": "h6" } } } }, "safety": null, "turn": 12, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "loses_material": { "type": "noul", "noul": 0.37 }, "allows_mate": { "type": "noul", "noul": 0.08 }, "quality": { "type": "score", "score": 1.85, "legend": { "0": "Losing blunder", "1": "Dubious or wasteful", "2": "Playable", "3": "Good", "4": "Winning or excellent" }, "probabilities": { "0": 0.09, "1": 0.29, "2": 0.33, "3": 0.26, "4": 0.03 }, "confidence": 0.34 }, "black_reply": { "type": "choice", "choice": "d8d5", "probabilities": { "e6d5": 0.26, "a8a2": 0.04, "f6g5": 0, "d8c8": 0, "g8h6": 0, "h7h5": 0, "d8c7": 0, "g7g5": 0, "a8a7": 0, "d8e8": 0, "b8d7": 0, "e6d7": 0, "b7b6": 0, "a8a4": 0.01, "f6f7": 0, "d8d5": 0.4, "b7b5": 0.01, "d8b6": 0.03, "f5f4": 0.01, "a8a3": 0, "c6d5": 0.19, "a8a6": 0, "d8a5": 0.02, "d8d6": 0.01, "g7g6": 0, "e6c8": 0, "c6c5": 0.01, "h7h6": 0, "e6f7": 0, "d8d7": 0, "f6e5": 0.01, "a8a5": 0, "f6g6": 0, "b8a6": 0 }, "confidence": 0.37 } }, "usage": { "input_tokens": 1770, "output_tokens": 410, "cost": 7.434e-05 }, "provider": "TypeSafe" }, "elapsed_s": 1.4341986329527572 }, { "stage": "review", "candidate": "f1e1", "request": { "model": "typesafe/jev-1.13", "state": { "before": { "fen": "rn1q1bnr/1p2p1pp/2p1bk2/5p2/3P4/4P3/PPPB1PPP/R2Q1RK1 w - - 2 12", "side_to_move": "white", "pieces": { "a1": "white rook", "d1": "white queen", "f1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "d2": "white bishop", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "e3": "white pawn", "d4": "white pawn", "f5": "black pawn", "c6": "black pawn", "e6": "black bishop", "f6": "black king", "b7": "black pawn", "e7": "black pawn", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "d8": "black queen", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false }, "candidate": { "uci": "f1e1", "san": "Re1" }, "after": { "fen": "rn1q1bnr/1p2p1pp/2p1bk2/5p2/3P4/4P3/PPPB1PPP/R2QR1K1 b - - 3 12", "side_to_move": "black", "pieces": { "a1": "white rook", "d1": "white queen", "e1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "d2": "white bishop", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "e3": "white pawn", "d4": "white pawn", "f5": "black pawn", "c6": "black pawn", "e6": "black bishop", "f6": "black king", "b7": "black pawn", "e7": "black pawn", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "d8": "black queen", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false } }, "questions": { "loses_material": { "type": "noul", "instructions": "After the candidate White move, can Black force a net material gain soon? Check legal captures, recaptures and attacks on ALL White pieces. A fair exchange is not a loss; merely being attacked is not enough. Assess from White perspective." }, "allows_mate": { "type": "noul", "instructions": "Can Black checkmate White on its very next move in the after position?" }, "quality": { "type": "score", "instructions": "Evaluate the candidate for White after Black responds strongly. Do not reward a check that sacrifices material without compensation.", "criteria": [ "Losing blunder", "Dubious or wasteful", "Playable", "Good", "Winning or excellent" ] }, "black_reply": { "type": "choice", "instructions": "Play Black in the AFTER position. Choose the strongest reply to punish White, especially hanging pieces or checkmate. Every offered move is legal.", "criteria": { "a8a2": "Rxa2", "a8a3": "Ra3", "a8a4": "Ra4", "a8a5": "Ra5", "a8a6": "Ra6", "a8a7": "Ra7", "b7b5": "b5", "b7b6": "b6", "b8a6": "Na6", "b8d7": "Nd7", "c6c5": "c5", "d8a5": "Qa5", "d8b6": "Qb6", "d8c7": "Qc7", "d8c8": "Qc8", "d8d4": "Qxd4", "d8d5": "Qd5", "d8d6": "Qd6", "d8d7": "Qd7", "d8e8": "Qe8", "e6a2": "Bxa2", "e6b3": "Bb3", "e6c4": "Bc4", "e6c8": "Bc8", "e6d5": "Bd5", "e6d7": "Bd7", "e6f7": "Bf7", "f5f4": "f4", "f6f7": "Kf7", "f6g5": "Kg5", "f6g6": "Kg6", "g7g5": "g5", "g7g6": "g6", "g8h6": "Nh6", "h7h5": "h5", "h7h6": "h6" } } } }, "safety": null, "turn": 12, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "loses_material": { "type": "noul", "noul": 0.27 }, "allows_mate": { "type": "noul", "noul": 0.11 }, "quality": { "type": "score", "score": 1.84, "legend": { "0": "Losing blunder", "1": "Dubious or wasteful", "2": "Playable", "3": "Good", "4": "Winning or excellent" }, "probabilities": { "0": 0.04, "1": 0.27, "2": 0.5, "3": 0.18, "4": 0.01 }, "confidence": 0.53 }, "black_reply": { "type": "choice", "choice": "d8d4", "probabilities": { "e6a2": 0.08, "h7h6": 0, "a8a6": 0, "a8a3": 0.01, "b8a6": 0, "d8d7": 0.01, "f5f4": 0.01, "a8a7": 0, "d8d4": 0.53, "b7b5": 0, "d8e8": 0.09, "d8d6": 0.01, "a8a5": 0, "g7g5": 0, "d8a5": 0.02, "g8h6": 0, "d8c8": 0.01, "c6c5": 0.01, "b8d7": 0.01, "e6d5": 0.02, "b7b6": 0, "f6f7": 0, "d8d5": 0.03, "a8a4": 0.01, "g7g6": 0, "f6g5": 0.01, "h7h5": 0, "a8a2": 0.05, "e6d7": 0.01, "e6c4": 0.03, "e6c8": 0, "d8c7": 0.01, "d8b6": 0.01, "e6f7": 0.01, "f6g6": 0, "e6b3": 0.02 }, "confidence": 0.51 } }, "usage": { "input_tokens": 1802, "output_tokens": 430, "cost": 7.5684e-05 }, "provider": "TypeSafe" }, "elapsed_s": 1.4349553129868582 }, { "stage": "review", "candidate": "d2c3", "request": { "model": "typesafe/jev-1.13", "state": { "before": { "fen": "rn1q1bnr/1p2p1pp/2p1bk2/5p2/3P4/4P3/PPPB1PPP/R2Q1RK1 w - - 2 12", "side_to_move": "white", "pieces": { "a1": "white rook", "d1": "white queen", "f1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "d2": "white bishop", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "e3": "white pawn", "d4": "white pawn", "f5": "black pawn", "c6": "black pawn", "e6": "black bishop", "f6": "black king", "b7": "black pawn", "e7": "black pawn", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "d8": "black queen", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false }, "candidate": { "uci": "d2c3", "san": "Bc3" }, "after": { "fen": "rn1q1bnr/1p2p1pp/2p1bk2/5p2/3P4/2B1P3/PPP2PPP/R2Q1RK1 b - - 3 12", "side_to_move": "black", "pieces": { "a1": "white rook", "d1": "white queen", "f1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "c3": "white bishop", "e3": "white pawn", "d4": "white pawn", "f5": "black pawn", "c6": "black pawn", "e6": "black bishop", "f6": "black king", "b7": "black pawn", "e7": "black pawn", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "d8": "black queen", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false } }, "questions": { "loses_material": { "type": "noul", "instructions": "After the candidate White move, can Black force a net material gain soon? Check legal captures, recaptures and attacks on ALL White pieces. A fair exchange is not a loss; merely being attacked is not enough. Assess from White perspective." }, "allows_mate": { "type": "noul", "instructions": "Can Black checkmate White on its very next move in the after position?" }, "quality": { "type": "score", "instructions": "Evaluate the candidate for White after Black responds strongly. Do not reward a check that sacrifices material without compensation.", "criteria": [ "Losing blunder", "Dubious or wasteful", "Playable", "Good", "Winning or excellent" ] }, "black_reply": { "type": "choice", "instructions": "Play Black in the AFTER position. Choose the strongest reply to punish White, especially hanging pieces or checkmate. Every offered move is legal.", "criteria": { "a8a2": "Rxa2", "a8a3": "Ra3", "a8a4": "Ra4", "a8a5": "Ra5", "a8a6": "Ra6", "a8a7": "Ra7", "b7b5": "b5", "b7b6": "b6", "b8a6": "Na6", "b8d7": "Nd7", "c6c5": "c5", "d8a5": "Qa5", "d8b6": "Qb6", "d8c7": "Qc7", "d8c8": "Qc8", "d8d4": "Qxd4", "d8d5": "Qd5", "d8d6": "Qd6", "d8d7": "Qd7", "d8e8": "Qe8", "e6a2": "Bxa2", "e6b3": "Bb3", "e6c4": "Bc4", "e6c8": "Bc8", "e6d5": "Bd5", "e6d7": "Bd7", "e6f7": "Bf7", "f5f4": "f4", "f6f7": "Kf7", "f6g5": "Kg5", "f6g6": "Kg6", "g7g5": "g5", "g7g6": "g6", "g8h6": "Nh6", "h7h5": "h5", "h7h6": "h6" } } } }, "safety": null, "turn": 12, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "loses_material": { "type": "noul", "noul": 0.29 }, "allows_mate": { "type": "noul", "noul": 0.07 }, "quality": { "type": "score", "score": 1.86, "legend": { "0": "Losing blunder", "1": "Dubious or wasteful", "2": "Playable", "3": "Good", "4": "Winning or excellent" }, "probabilities": { "0": 0.06, "1": 0.27, "2": 0.44, "3": 0.22, "4": 0.01 }, "confidence": 0.47 }, "black_reply": { "type": "choice", "choice": "d8d4", "probabilities": { "f6g5": 0.01, "e6f7": 0.01, "a8a2": 0.06, "e6c8": 0.01, "h7h6": 0, "a8a6": 0, "a8a5": 0, "e6d5": 0.04, "b8a6": 0, "d8a5": 0.03, "d8c8": 0, "a8a3": 0.02, "c6c5": 0.02, "b8d7": 0, "d8b6": 0.02, "d8d7": 0, "e6b3": 0.04, "f5f4": 0.01, "f6g6": 0, "d8e8": 0, "d8d4": 0.47000000000000003, "e6a2": 0.12, "f6f7": 0, "e6d7": 0.01, "a8a4": 0.01, "b7b5": 0.01, "g7g5": 0, "d8c7": 0.01, "a8a7": 0, "g7g6": 0, "h7h5": 0, "g8h6": 0, "d8d5": 0.02, "d8d6": 0.01, "e6c4": 0.06999999999999999, "b7b6": 0 }, "confidence": 0.44 } }, "usage": { "input_tokens": 1803, "output_tokens": 430, "cost": 7.5726e-05 }, "provider": "TypeSafe" }, "elapsed_s": 1.4662475429940969 }, { "stage": "selection", "candidate": null, "request": { "model": "typesafe/jev-1.13", "state": { "position": { "fen": "rn1q1bnr/1p2p1pp/2p1bk2/5p2/3P4/4P3/PPPB1PPP/R2Q1RK1 w - - 2 12", "board": "8 r n . q . b n r\n7 . p . . p . p p\n6 . . p . b k . .\n5 . . . . . p . .\n4 . . . P . . . .\n3 . . . . P . . .\n2 P P P B . P P P\n1 R . . Q . R K .\n a b c d e f g h", "legend": "Uppercase = White, lowercase = Black. P pawn, N knight, B bishop, R rook, Q queen, K king; . empty.", "you_play": "White", "in_check": false, "history_uci": [ "g1f3", "a7a5", "b1c3", "f7f5", "d2d4", "e8f7", "e2e3", "c7c6", "f1c4", "d7d5", "e1g1", "d5c4", "f3e5", "f7f6", "e5c4", "c8e6", "c3d5", "d8d5", "c4a5", "d5a5", "c1d2", "a5d8" ], "history_san": [ "Nf3", "a5", "Nc3", "f5", "d4", "Kf7", "e3", "c6", "Bc4+", "d5", "O-O", "dxc4", "Ne5+", "Kf6", "Nxc4", "Be6", "Nd5+", "Qxd5", "Nxa5", "Qxa5", "Bd2", "Qd8" ], "pieces": { "white": { "a1": "rook", "d1": "queen", "f1": "rook", "g1": "king", "a2": "pawn", "b2": "pawn", "c2": "pawn", "d2": "bishop", "f2": "pawn", "g2": "pawn", "h2": "pawn", "e3": "pawn", "d4": "pawn" }, "black": { "f5": "pawn", "c6": "pawn", "e6": "bishop", "f6": "king", "b7": "pawn", "e7": "pawn", "g7": "pawn", "h7": "pawn", "a8": "rook", "b8": "knight", "d8": "queen", "f8": "bishop", "g8": "knight", "h8": "rook" } } }, "reviews": [ { "uci": "d4d5", "proposal_probability": 0.09999999999999999, "loss_probability": 0.37, "mate_probability": 0.08, "quality": 1.85, "black_reply": "d8d5", "after_model_reply": { "fen": "rn3bnr/1p2p1pp/2p1bk2/3q1p2/8/4P3/PPPB1PPP/R2Q1RK1 w - - 0 13", "side_to_move": "white", "pieces": { "a1": "white rook", "d1": "white queen", "f1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "d2": "white bishop", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "e3": "white pawn", "d5": "black queen", "f5": "black pawn", "c6": "black pawn", "e6": "black bishop", "f6": "black king", "b7": "black pawn", "e7": "black pawn", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false } }, { "uci": "f1e1", "proposal_probability": 0.08, "loss_probability": 0.27, "mate_probability": 0.11, "quality": 1.84, "black_reply": "d8d4", "after_model_reply": { "fen": "rn3bnr/1p2p1pp/2p1bk2/5p2/3q4/4P3/PPPB1PPP/R2QR1K1 w - - 0 13", "side_to_move": "white", "pieces": { "a1": "white rook", "d1": "white queen", "e1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "d2": "white bishop", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "e3": "white pawn", "d4": "black queen", "f5": "black pawn", "c6": "black pawn", "e6": "black bishop", "f6": "black king", "b7": "black pawn", "e7": "black pawn", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false } }, { "uci": "d2c3", "proposal_probability": 0.07, "loss_probability": 0.29, "mate_probability": 0.07, "quality": 1.86, "black_reply": "d8d4", "after_model_reply": { "fen": "rn3bnr/1p2p1pp/2p1bk2/5p2/3q4/2B1P3/PPP2PPP/R2Q1RK1 w - - 0 13", "side_to_move": "white", "pieces": { "a1": "white rook", "d1": "white queen", "f1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "c3": "white bishop", "e3": "white pawn", "d4": "black queen", "f5": "black pawn", "c6": "black pawn", "e6": "black bishop", "f6": "black king", "b7": "black pawn", "e7": "black pawn", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false } } ], "warning": "Reviews and Black replies are fallible predictions of the same Jev model, not verified engine evaluations." }, "questions": { "move": { "type": "choice", "instructions": "Choose the best White move from the reviewed candidates. Independently check each hypothetical Black reply, captures and recaptures. Prefer avoiding material loss, then useful progress and king safety. Reviews may be wrong. A high proposal probability does not prove a good move.", "criteria": { "d4d5": "pawn d4 to d5; SAN d5", "f1e1": "rook f1 to e1; SAN Re1", "d2c3": "bishop d2 to c3; SAN Bc3" } } } }, "safety": null, "turn": 12, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "move": { "type": "choice", "choice": "f1e1", "probabilities": { "f1e1": 0.4, "d2c3": 0.38, "d4d5": 0.22 }, "confidence": 0.1 } }, "usage": { "input_tokens": 2480, "output_tokens": 50, "cost": 0.00010416 }, "provider": "TypeSafe" }, "elapsed_s": 1.6832560179755092 }, { "stage": "proposal", "candidate": null, "request": { "model": "typesafe/jev-1.13", "state": { "fen": "rn3bnr/1p2p1pp/2pqbk2/5p2/3P4/4P3/PPPB1PPP/R2QR1K1 w - - 4 13", "board": "8 r n . . . b n r\n7 . p . . p . p p\n6 . . p q b k . .\n5 . . . . . p . .\n4 . . . P . . . .\n3 . . . . P . . .\n2 P P P B . P P P\n1 R . . Q R . K .\n a b c d e f g h", "legend": "Uppercase = White, lowercase = Black. P pawn, N knight, B bishop, R rook, Q queen, K king; . empty.", "you_play": "White", "in_check": false, "history_uci": [ "g1f3", "a7a5", "b1c3", "f7f5", "d2d4", "e8f7", "e2e3", "c7c6", "f1c4", "d7d5", "e1g1", "d5c4", "f3e5", "f7f6", "e5c4", "c8e6", "c3d5", "d8d5", "c4a5", "d5a5", "c1d2", "a5d8", "f1e1", "d8d6" ], "history_san": [ "Nf3", "a5", "Nc3", "f5", "d4", "Kf7", "e3", "c6", "Bc4+", "d5", "O-O", "dxc4", "Ne5+", "Kf6", "Nxc4", "Be6", "Nd5+", "Qxd5", "Nxa5", "Qxa5", "Bd2", "Qd8", "Re1", "Qd6" ], "pieces": { "white": { "a1": "rook", "d1": "queen", "e1": "rook", "g1": "king", "a2": "pawn", "b2": "pawn", "c2": "pawn", "d2": "bishop", "f2": "pawn", "g2": "pawn", "h2": "pawn", "e3": "pawn", "d4": "pawn" }, "black": { "f5": "pawn", "c6": "pawn", "d6": "queen", "e6": "bishop", "f6": "king", "b7": "pawn", "e7": "pawn", "g7": "pawn", "h7": "pawn", "a8": "rook", "b8": "knight", "f8": "bishop", "g8": "knight", "h8": "rook" } } }, "questions": { "move": { "type": "choice", "instructions": "Choose one legal White move. You alone evaluate the moves; their list is unranked. Use the explicit piece locations to check the destination and any lines opened by moving. First consider whether Black can capture your queen, rook or minor pieces after the move. Count both sides of an exchange: pawn=1, knight/bishop=3, rook=5, queen=9. Prefer keeping material unless you can establish a concrete profitable continuation. Giving check is NOT compensation for losing a piece. When no tactic works, develop or improve a safe piece. Protect your king and aim for checkmate. Read the history to avoid purposeless repeats when ahead; a draw can be useful when losing. Return one offered UCI move.", "criteria": { "a1b1": "rook a1 to b1; SAN Rb1", "a1c1": "rook a1 to c1; SAN Rc1", "a2a3": "pawn a2 to a3; SAN a3", "a2a4": "pawn a2 to a4; SAN a4", "b2b3": "pawn b2 to b3; SAN b3", "b2b4": "pawn b2 to b4; SAN b4", "c2c3": "pawn c2 to c3; SAN c3", "c2c4": "pawn c2 to c4; SAN c4", "d1b1": "queen d1 to b1; SAN Qb1", "d1c1": "queen d1 to c1; SAN Qc1", "d1e2": "queen d1 to e2; SAN Qe2", "d1f3": "queen d1 to f3; SAN Qf3", "d1g4": "queen d1 to g4; SAN Qg4", "d1h5": "queen d1 to h5; SAN Qh5", "d2a5": "bishop d2 to a5; SAN Ba5", "d2b4": "bishop d2 to b4; SAN Bb4", "d2c1": "bishop d2 to c1; SAN Bc1", "d2c3": "bishop d2 to c3; SAN Bc3", "d4d5": "pawn d4 to d5; SAN d5", "e1e2": "rook e1 to e2; SAN Re2", "e1f1": "rook e1 to f1; SAN Rf1", "e3e4": "pawn e3 to e4; SAN e4", "f2f3": "pawn f2 to f3; SAN f3", "f2f4": "pawn f2 to f4; SAN f4", "g1f1": "king g1 to f1; SAN Kf1", "g1h1": "king g1 to h1; SAN Kh1", "g2g3": "pawn g2 to g3; SAN g3", "g2g4": "pawn g2 to g4; SAN g4", "h2h3": "pawn h2 to h3; SAN h3", "h2h4": "pawn h2 to h4; SAN h4" } } } }, "safety": null, "turn": 13, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "move": { "type": "choice", "choice": "d4d5", "probabilities": { "d1g4": 0.04, "d1b1": 0.02, "b2b3": 0.03, "e3e4": 0.08, "a1c1": 0.05, "d2c3": 0.08, "h2h4": 0.01, "d2c1": 0.01, "d2b4": 0.05, "d1f3": 0.03, "g1h1": 0.02, "e1f1": 0.04, "c2c3": 0.04, "d4d5": 0.09000000000000001, "d1h5": 0.04, "h2h3": 0.01, "g2g4": 0.01, "f2f3": 0.01, "g2g3": 0.03, "b2b4": 0.02, "d1c1": 0.02, "c2c4": 0.03, "a2a4": 0.02, "a2a3": 0.02, "g1f1": 0.03, "a1b1": 0.02, "d2a5": 0.04, "d1e2": 0.05, "f2f4": 0.02, "e1e2": 0.04 }, "confidence": 0.07 } }, "usage": { "input_tokens": 1945, "output_tokens": 320, "cost": 8.169e-05 }, "provider": "TypeSafe" }, "elapsed_s": 1.6609352000523359 }, { "stage": "review", "candidate": "d4d5", "request": { "model": "typesafe/jev-1.13", "state": { "before": { "fen": "rn3bnr/1p2p1pp/2pqbk2/5p2/3P4/4P3/PPPB1PPP/R2QR1K1 w - - 4 13", "side_to_move": "white", "pieces": { "a1": "white rook", "d1": "white queen", "e1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "d2": "white bishop", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "e3": "white pawn", "d4": "white pawn", "f5": "black pawn", "c6": "black pawn", "d6": "black queen", "e6": "black bishop", "f6": "black king", "b7": "black pawn", "e7": "black pawn", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false }, "candidate": { "uci": "d4d5", "san": "d5" }, "after": { "fen": "rn3bnr/1p2p1pp/2pqbk2/3P1p2/8/4P3/PPPB1PPP/R2QR1K1 b - - 0 13", "side_to_move": "black", "pieces": { "a1": "white rook", "d1": "white queen", "e1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "d2": "white bishop", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "e3": "white pawn", "d5": "white pawn", "f5": "black pawn", "c6": "black pawn", "d6": "black queen", "e6": "black bishop", "f6": "black king", "b7": "black pawn", "e7": "black pawn", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false } }, "questions": { "loses_material": { "type": "noul", "instructions": "After the candidate White move, can Black force a net material gain soon? Check legal captures, recaptures and attacks on ALL White pieces. A fair exchange is not a loss; merely being attacked is not enough. Assess from White perspective." }, "allows_mate": { "type": "noul", "instructions": "Can Black checkmate White on its very next move in the after position?" }, "quality": { "type": "score", "instructions": "Evaluate the candidate for White after Black responds strongly. Do not reward a check that sacrifices material without compensation.", "criteria": [ "Losing blunder", "Dubious or wasteful", "Playable", "Good", "Winning or excellent" ] }, "black_reply": { "type": "choice", "instructions": "Play Black in the AFTER position. Choose the strongest reply to punish White, especially hanging pieces or checkmate. Every offered move is legal.", "criteria": { "a8a2": "Rxa2", "a8a3": "Ra3", "a8a4": "Ra4", "a8a5": "Ra5", "a8a6": "Ra6", "a8a7": "Ra7", "b7b5": "b5", "b7b6": "b6", "b8a6": "Na6", "b8d7": "Nd7", "c6c5": "c5", "c6d5": "cxd5", "d6a3": "Qa3", "d6b4": "Qb4", "d6c5": "Qc5", "d6c7": "Qc7", "d6d5": "Qxd5", "d6d7": "Qd7", "d6d8": "Qd8", "d6e5": "Qe5", "d6f4": "Qf4", "d6g3": "Qg3", "d6h2": "Qxh2+", "e6c8": "Bc8", "e6d5": "Bxd5", "e6d7": "Bd7", "e6f7": "Bf7", "f5f4": "f4", "f6e5": "Ke5", "f6f7": "Kf7", "f6g5": "Kg5", "f6g6": "Kg6", "g7g5": "g5", "g7g6": "g6", "g8h6": "Nh6", "h7h5": "h5", "h7h6": "h6" } } } }, "safety": null, "turn": 13, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "loses_material": { "type": "noul", "noul": 0.44 }, "allows_mate": { "type": "noul", "noul": 0.13 }, "quality": { "type": "score", "score": 1.71, "legend": { "0": "Losing blunder", "1": "Dubious or wasteful", "2": "Playable", "3": "Good", "4": "Winning or excellent" }, "probabilities": { "0": 0.12, "1": 0.33, "2": 0.3, "3": 0.21, "4": 0.04 }, "confidence": 0.2 }, "black_reply": { "type": "choice", "choice": "d6d5", "probabilities": { "d6c5": 0.01, "d6g3": 0.05, "d6c7": 0, "a8a6": 0, "e6c8": 0, "a8a7": 0, "b8d7": 0, "d6f4": 0.03, "f6g5": 0, "e6d5": 0.16, "f6e5": 0, "d6e5": 0.01, "f5f4": 0, "a8a5": 0, "d6a3": 0.03, "f6g6": 0, "a8a2": 0.01, "b7b6": 0, "g8h6": 0, "c6c5": 0.01, "g7g5": 0, "h7h6": 0, "b7b5": 0.01, "d6d7": 0, "a8a3": 0, "e6f7": 0, "c6d5": 0.13, "a8a4": 0, "f6f7": 0, "b8a6": 0, "d6b4": 0.02, "g7g6": 0, "d6d5": 0.33, "d6d8": 0, "h7h5": 0, "d6h2": 0.2, "e6d7": 0 }, "confidence": 0.3 } }, "usage": { "input_tokens": 1815, "output_tokens": 440, "cost": 7.623e-05 }, "provider": "TypeSafe" }, "elapsed_s": 1.7004483229247853 }, { "stage": "review", "candidate": "d2c3", "request": { "model": "typesafe/jev-1.13", "state": { "before": { "fen": "rn3bnr/1p2p1pp/2pqbk2/5p2/3P4/4P3/PPPB1PPP/R2QR1K1 w - - 4 13", "side_to_move": "white", "pieces": { "a1": "white rook", "d1": "white queen", "e1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "d2": "white bishop", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "e3": "white pawn", "d4": "white pawn", "f5": "black pawn", "c6": "black pawn", "d6": "black queen", "e6": "black bishop", "f6": "black king", "b7": "black pawn", "e7": "black pawn", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false }, "candidate": { "uci": "d2c3", "san": "Bc3" }, "after": { "fen": "rn3bnr/1p2p1pp/2pqbk2/5p2/3P4/2B1P3/PPP2PPP/R2QR1K1 b - - 5 13", "side_to_move": "black", "pieces": { "a1": "white rook", "d1": "white queen", "e1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "c3": "white bishop", "e3": "white pawn", "d4": "white pawn", "f5": "black pawn", "c6": "black pawn", "d6": "black queen", "e6": "black bishop", "f6": "black king", "b7": "black pawn", "e7": "black pawn", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false } }, "questions": { "loses_material": { "type": "noul", "instructions": "After the candidate White move, can Black force a net material gain soon? Check legal captures, recaptures and attacks on ALL White pieces. A fair exchange is not a loss; merely being attacked is not enough. Assess from White perspective." }, "allows_mate": { "type": "noul", "instructions": "Can Black checkmate White on its very next move in the after position?" }, "quality": { "type": "score", "instructions": "Evaluate the candidate for White after Black responds strongly. Do not reward a check that sacrifices material without compensation.", "criteria": [ "Losing blunder", "Dubious or wasteful", "Playable", "Good", "Winning or excellent" ] }, "black_reply": { "type": "choice", "instructions": "Play Black in the AFTER position. Choose the strongest reply to punish White, especially hanging pieces or checkmate. Every offered move is legal.", "criteria": { "a8a2": "Rxa2", "a8a3": "Ra3", "a8a4": "Ra4", "a8a5": "Ra5", "a8a6": "Ra6", "a8a7": "Ra7", "b7b5": "b5", "b7b6": "b6", "b8a6": "Na6", "b8d7": "Nd7", "c6c5": "c5", "d6a3": "Qa3", "d6b4": "Qb4", "d6c5": "Qc5", "d6c7": "Qc7", "d6d4": "Qxd4", "d6d5": "Qd5", "d6d7": "Qd7", "d6d8": "Qd8", "d6e5": "Qe5", "d6f4": "Qf4", "d6g3": "Qg3", "d6h2": "Qxh2+", "e6a2": "Bxa2", "e6b3": "Bb3", "e6c4": "Bc4", "e6c8": "Bc8", "e6d5": "Bd5", "e6d7": "Bd7", "e6f7": "Bf7", "f5f4": "f4", "f6f7": "Kf7", "f6g5": "Kg5", "f6g6": "Kg6", "g7g5": "g5", "g7g6": "g6", "g8h6": "Nh6", "h7h5": "h5", "h7h6": "h6" } } } }, "safety": null, "turn": 13, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "loses_material": { "type": "noul", "noul": 0.34 }, "allows_mate": { "type": "noul", "noul": 0.11 }, "quality": { "type": "score", "score": 1.79, "legend": { "0": "Losing blunder", "1": "Dubious or wasteful", "2": "Playable", "3": "Good", "4": "Winning or excellent" }, "probabilities": { "0": 0.06, "1": 0.3, "2": 0.44, "3": 0.19, "4": 0.01 }, "confidence": 0.46 }, "black_reply": { "type": "choice", "choice": "d6d4", "probabilities": { "a8a5": 0, "f6g6": 0, "e6f7": 0, "d6c5": 0.04, "a8a7": 0, "e6b3": 0.03, "b8a6": 0, "e6c8": 0.01, "d6d4": 0.29000000000000004, "a8a2": 0.04, "e6a2": 0.04, "f6g5": 0, "d6e5": 0.02, "a8a4": 0, "e6c4": 0.04, "b7b6": 0, "e6d5": 0.01, "h7h5": 0, "h7h6": 0, "b7b5": 0.01, "d6c7": 0, "g7g5": 0, "g8h6": 0, "a8a3": 0.01, "d6a3": 0.060000000000000005, "c6c5": 0.01, "a8a6": 0, "f6f7": 0, "b8d7": 0.01, "d6d8": 0, "f5f4": 0.01, "e6d7": 0, "d6g3": 0.06999999999999999, "g7g6": 0, "d6f4": 0.03, "d6d5": 0.01, "d6d7": 0, "d6b4": 0.04, "d6h2": 0.21000000000000002 }, "confidence": 0.26 } }, "usage": { "input_tokens": 1848, "output_tokens": 460, "cost": 7.7616e-05 }, "provider": "TypeSafe" }, "elapsed_s": 1.3502973139984533 }, { "stage": "review", "candidate": "e3e4", "request": { "model": "typesafe/jev-1.13", "state": { "before": { "fen": "rn3bnr/1p2p1pp/2pqbk2/5p2/3P4/4P3/PPPB1PPP/R2QR1K1 w - - 4 13", "side_to_move": "white", "pieces": { "a1": "white rook", "d1": "white queen", "e1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "d2": "white bishop", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "e3": "white pawn", "d4": "white pawn", "f5": "black pawn", "c6": "black pawn", "d6": "black queen", "e6": "black bishop", "f6": "black king", "b7": "black pawn", "e7": "black pawn", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false }, "candidate": { "uci": "e3e4", "san": "e4" }, "after": { "fen": "rn3bnr/1p2p1pp/2pqbk2/5p2/3PP3/8/PPPB1PPP/R2QR1K1 b - - 0 13", "side_to_move": "black", "pieces": { "a1": "white rook", "d1": "white queen", "e1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "d2": "white bishop", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "d4": "white pawn", "e4": "white pawn", "f5": "black pawn", "c6": "black pawn", "d6": "black queen", "e6": "black bishop", "f6": "black king", "b7": "black pawn", "e7": "black pawn", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false } }, "questions": { "loses_material": { "type": "noul", "instructions": "After the candidate White move, can Black force a net material gain soon? Check legal captures, recaptures and attacks on ALL White pieces. A fair exchange is not a loss; merely being attacked is not enough. Assess from White perspective." }, "allows_mate": { "type": "noul", "instructions": "Can Black checkmate White on its very next move in the after position?" }, "quality": { "type": "score", "instructions": "Evaluate the candidate for White after Black responds strongly. Do not reward a check that sacrifices material without compensation.", "criteria": [ "Losing blunder", "Dubious or wasteful", "Playable", "Good", "Winning or excellent" ] }, "black_reply": { "type": "choice", "instructions": "Play Black in the AFTER position. Choose the strongest reply to punish White, especially hanging pieces or checkmate. Every offered move is legal.", "criteria": { "a8a2": "Rxa2", "a8a3": "Ra3", "a8a4": "Ra4", "a8a5": "Ra5", "a8a6": "Ra6", "a8a7": "Ra7", "b7b5": "b5", "b7b6": "b6", "b8a6": "Na6", "b8d7": "Nd7", "c6c5": "c5", "d6a3": "Qa3", "d6b4": "Qb4", "d6c5": "Qc5", "d6c7": "Qc7", "d6d4": "Qxd4", "d6d5": "Qd5", "d6d7": "Qd7", "d6d8": "Qd8", "d6e5": "Qe5", "d6f4": "Qf4", "d6g3": "Qg3", "d6h2": "Qxh2+", "e6a2": "Bxa2", "e6b3": "Bb3", "e6c4": "Bc4", "e6c8": "Bc8", "e6d5": "Bd5", "e6d7": "Bd7", "e6f7": "Bf7", "f5e4": "fxe4", "f5f4": "f4", "f6f7": "Kf7", "f6g6": "Kg6", "g7g5": "g5", "g7g6": "g6", "g8h6": "Nh6", "h7h5": "h5", "h7h6": "h6" } } } }, "safety": null, "turn": 13, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "loses_material": { "type": "noul", "noul": 0.36 }, "allows_mate": { "type": "noul", "noul": 0.09 }, "quality": { "type": "score", "score": 1.85, "legend": { "0": "Losing blunder", "1": "Dubious or wasteful", "2": "Playable", "3": "Good", "4": "Winning or excellent" }, "probabilities": { "0": 0.08, "1": 0.27, "2": 0.39, "3": 0.23, "4": 0.03 }, "confidence": 0.41 }, "black_reply": { "type": "choice", "choice": "f5e4", "probabilities": { "h7h6": 0, "c6c5": 0.01, "d6h2": 0.17, "b7b6": 0, "f6g6": 0, "e6f7": 0, "e6c4": 0.03, "d6d8": 0, "g7g6": 0, "d6g3": 0.060000000000000005, "g8h6": 0, "b7b5": 0, "f5e4": 0.42, "d6d5": 0.01, "e6a2": 0.02, "d6d7": 0, "d6f4": 0.01, "f6f7": 0, "a8a4": 0, "g7g5": 0, "e6b3": 0.01, "d6b4": 0.01, "b8a6": 0, "d6c7": 0, "b8d7": 0, "a8a7": 0, "e6d5": 0, "d6a3": 0.01, "h7h5": 0, "a8a2": 0.02, "a8a5": 0, "d6e5": 0.02, "e6d7": 0, "a8a6": 0, "e6c8": 0.01, "d6d4": 0.18000000000000002, "d6c5": 0.01, "a8a3": 0, "f5f4": 0 }, "confidence": 0.39 } }, "usage": { "input_tokens": 1846, "output_tokens": 460, "cost": 7.7532e-05 }, "provider": "TypeSafe" }, "elapsed_s": 1.7007860969752073 }, { "stage": "selection", "candidate": null, "request": { "model": "typesafe/jev-1.13", "state": { "position": { "fen": "rn3bnr/1p2p1pp/2pqbk2/5p2/3P4/4P3/PPPB1PPP/R2QR1K1 w - - 4 13", "board": "8 r n . . . b n r\n7 . p . . p . p p\n6 . . p q b k . .\n5 . . . . . p . .\n4 . . . P . . . .\n3 . . . . P . . .\n2 P P P B . P P P\n1 R . . Q R . K .\n a b c d e f g h", "legend": "Uppercase = White, lowercase = Black. P pawn, N knight, B bishop, R rook, Q queen, K king; . empty.", "you_play": "White", "in_check": false, "history_uci": [ "g1f3", "a7a5", "b1c3", "f7f5", "d2d4", "e8f7", "e2e3", "c7c6", "f1c4", "d7d5", "e1g1", "d5c4", "f3e5", "f7f6", "e5c4", "c8e6", "c3d5", "d8d5", "c4a5", "d5a5", "c1d2", "a5d8", "f1e1", "d8d6" ], "history_san": [ "Nf3", "a5", "Nc3", "f5", "d4", "Kf7", "e3", "c6", "Bc4+", "d5", "O-O", "dxc4", "Ne5+", "Kf6", "Nxc4", "Be6", "Nd5+", "Qxd5", "Nxa5", "Qxa5", "Bd2", "Qd8", "Re1", "Qd6" ], "pieces": { "white": { "a1": "rook", "d1": "queen", "e1": "rook", "g1": "king", "a2": "pawn", "b2": "pawn", "c2": "pawn", "d2": "bishop", "f2": "pawn", "g2": "pawn", "h2": "pawn", "e3": "pawn", "d4": "pawn" }, "black": { "f5": "pawn", "c6": "pawn", "d6": "queen", "e6": "bishop", "f6": "king", "b7": "pawn", "e7": "pawn", "g7": "pawn", "h7": "pawn", "a8": "rook", "b8": "knight", "f8": "bishop", "g8": "knight", "h8": "rook" } } }, "reviews": [ { "uci": "d4d5", "proposal_probability": 0.09000000000000001, "loss_probability": 0.44, "mate_probability": 0.13, "quality": 1.71, "black_reply": "d6d5", "after_model_reply": { "fen": "rn3bnr/1p2p1pp/2p1bk2/3q1p2/8/4P3/PPPB1PPP/R2QR1K1 w - - 0 14", "side_to_move": "white", "pieces": { "a1": "white rook", "d1": "white queen", "e1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "d2": "white bishop", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "e3": "white pawn", "d5": "black queen", "f5": "black pawn", "c6": "black pawn", "e6": "black bishop", "f6": "black king", "b7": "black pawn", "e7": "black pawn", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false } }, { "uci": "d2c3", "proposal_probability": 0.08, "loss_probability": 0.34, "mate_probability": 0.11, "quality": 1.79, "black_reply": "d6d4", "after_model_reply": { "fen": "rn3bnr/1p2p1pp/2p1bk2/5p2/3q4/2B1P3/PPP2PPP/R2QR1K1 w - - 0 14", "side_to_move": "white", "pieces": { "a1": "white rook", "d1": "white queen", "e1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "c3": "white bishop", "e3": "white pawn", "d4": "black queen", "f5": "black pawn", "c6": "black pawn", "e6": "black bishop", "f6": "black king", "b7": "black pawn", "e7": "black pawn", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false } }, { "uci": "e3e4", "proposal_probability": 0.08, "loss_probability": 0.36, "mate_probability": 0.09, "quality": 1.85, "black_reply": "f5e4", "after_model_reply": { "fen": "rn3bnr/1p2p1pp/2pqbk2/8/3Pp3/8/PPPB1PPP/R2QR1K1 w - - 0 14", "side_to_move": "white", "pieces": { "a1": "white rook", "d1": "white queen", "e1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "d2": "white bishop", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "d4": "white pawn", "e4": "black pawn", "c6": "black pawn", "d6": "black queen", "e6": "black bishop", "f6": "black king", "b7": "black pawn", "e7": "black pawn", "g7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false } } ], "warning": "Reviews and Black replies are fallible predictions of the same Jev model, not verified engine evaluations." }, "questions": { "move": { "type": "choice", "instructions": "Choose the best White move from the reviewed candidates. Independently check each hypothetical Black reply, captures and recaptures. Prefer avoiding material loss, then useful progress and king safety. Reviews may be wrong. A high proposal probability does not prove a good move.", "criteria": { "d4d5": "pawn d4 to d5; SAN d5", "d2c3": "bishop d2 to c3; SAN Bc3", "e3e4": "pawn e3 to e4; SAN e4" } } } }, "safety": null, "turn": 13, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "move": { "type": "choice", "choice": "d2c3", "probabilities": { "e3e4": 0.33, "d2c3": 0.5, "d4d5": 0.17 }, "confidence": 0.24 } }, "usage": { "input_tokens": 2497, "output_tokens": 50, "cost": 0.000104874 }, "provider": "TypeSafe" }, "elapsed_s": 1.384976560017094 }, { "stage": "proposal", "candidate": null, "request": { "model": "typesafe/jev-1.13", "state": { "fen": "rn3bnr/1p2p2p/2pqbkp1/5p2/3P4/2B1P3/PPP2PPP/R2QR1K1 w - - 0 14", "board": "8 r n . . . b n r\n7 . p . . p . . p\n6 . . p q b k p .\n5 . . . . . p . .\n4 . . . P . . . .\n3 . . B . P . . .\n2 P P P . . P P P\n1 R . . Q R . K .\n a b c d e f g h", "legend": "Uppercase = White, lowercase = Black. P pawn, N knight, B bishop, R rook, Q queen, K king; . empty.", "you_play": "White", "in_check": false, "history_uci": [ "g1f3", "a7a5", "b1c3", "f7f5", "d2d4", "e8f7", "e2e3", "c7c6", "f1c4", "d7d5", "e1g1", "d5c4", "f3e5", "f7f6", "e5c4", "c8e6", "c3d5", "d8d5", "c4a5", "d5a5", "c1d2", "a5d8", "f1e1", "d8d6", "d2c3", "g7g6" ], "history_san": [ "Nf3", "a5", "Nc3", "f5", "d4", "Kf7", "e3", "c6", "Bc4+", "d5", "O-O", "dxc4", "Ne5+", "Kf6", "Nxc4", "Be6", "Nd5+", "Qxd5", "Nxa5", "Qxa5", "Bd2", "Qd8", "Re1", "Qd6", "Bc3", "g6" ], "pieces": { "white": { "a1": "rook", "d1": "queen", "e1": "rook", "g1": "king", "a2": "pawn", "b2": "pawn", "c2": "pawn", "f2": "pawn", "g2": "pawn", "h2": "pawn", "c3": "bishop", "e3": "pawn", "d4": "pawn" }, "black": { "f5": "pawn", "c6": "pawn", "d6": "queen", "e6": "bishop", "f6": "king", "g6": "pawn", "b7": "pawn", "e7": "pawn", "h7": "pawn", "a8": "rook", "b8": "knight", "f8": "bishop", "g8": "knight", "h8": "rook" } } }, "questions": { "move": { "type": "choice", "instructions": "Choose one legal White move. You alone evaluate the moves; their list is unranked. Use the explicit piece locations to check the destination and any lines opened by moving. First consider whether Black can capture your queen, rook or minor pieces after the move. Count both sides of an exchange: pawn=1, knight/bishop=3, rook=5, queen=9. Prefer keeping material unless you can establish a concrete profitable continuation. Giving check is NOT compensation for losing a piece. When no tactic works, develop or improve a safe piece. Protect your king and aim for checkmate. Read the history to avoid purposeless repeats when ahead; a draw can be useful when losing. Return one offered UCI move.", "criteria": { "a1b1": "rook a1 to b1; SAN Rb1", "a1c1": "rook a1 to c1; SAN Rc1", "a2a3": "pawn a2 to a3; SAN a3", "a2a4": "pawn a2 to a4; SAN a4", "b2b3": "pawn b2 to b3; SAN b3", "b2b4": "pawn b2 to b4; SAN b4", "c3a5": "bishop c3 to a5; SAN Ba5", "c3b4": "bishop c3 to b4; SAN Bb4", "c3d2": "bishop c3 to d2; SAN Bd2", "d1b1": "queen d1 to b1; SAN Qb1", "d1c1": "queen d1 to c1; SAN Qc1", "d1d2": "queen d1 to d2; SAN Qd2", "d1d3": "queen d1 to d3; SAN Qd3", "d1e2": "queen d1 to e2; SAN Qe2", "d1f3": "queen d1 to f3; SAN Qf3", "d1g4": "queen d1 to g4; SAN Qg4", "d1h5": "queen d1 to h5; SAN Qh5", "d4d5": "pawn d4 to d5; SAN d5+", "e1e2": "rook e1 to e2; SAN Re2", "e1f1": "rook e1 to f1; SAN Rf1", "e3e4": "pawn e3 to e4; SAN e4", "f2f3": "pawn f2 to f3; SAN f3", "f2f4": "pawn f2 to f4; SAN f4", "g1f1": "king g1 to f1; SAN Kf1", "g1h1": "king g1 to h1; SAN Kh1", "g2g3": "pawn g2 to g3; SAN g3", "g2g4": "pawn g2 to g4; SAN g4", "h2h3": "pawn h2 to h3; SAN h3", "h2h4": "pawn h2 to h4; SAN h4" } } } }, "safety": null, "turn": 14, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "move": { "type": "choice", "choice": "d4d5", "probabilities": { "g2g3": 0.02, "a2a4": 0.03, "d1b1": 0.01, "a1c1": 0.04, "d4d5": 0.24, "a2a3": 0.02, "c3a5": 0.03, "d1d2": 0.03, "e3e4": 0.08, "b2b4": 0.02, "c3b4": 0.03, "d1c1": 0.02, "g2g4": 0.02, "c3d2": 0.03, "a1b1": 0.01, "e1e2": 0.03, "f2f3": 0.02, "d1h5": 0.04, "f2f4": 0.02, "h2h4": 0.01, "g1h1": 0.01, "g1f1": 0.02, "e1f1": 0.05, "b2b3": 0.02, "h2h3": 0.01, "d1f3": 0.03, "d1d3": 0.04, "d1g4": 0.05, "d1e2": 0.02 }, "confidence": 0.21 } }, "usage": { "input_tokens": 1948, "output_tokens": 310, "cost": 8.1816e-05 }, "provider": "TypeSafe" }, "elapsed_s": 1.6695984159596264 }, { "stage": "review", "candidate": "d4d5", "request": { "model": "typesafe/jev-1.13", "state": { "before": { "fen": "rn3bnr/1p2p2p/2pqbkp1/5p2/3P4/2B1P3/PPP2PPP/R2QR1K1 w - - 0 14", "side_to_move": "white", "pieces": { "a1": "white rook", "d1": "white queen", "e1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "c3": "white bishop", "e3": "white pawn", "d4": "white pawn", "f5": "black pawn", "c6": "black pawn", "d6": "black queen", "e6": "black bishop", "f6": "black king", "g6": "black pawn", "b7": "black pawn", "e7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false }, "candidate": { "uci": "d4d5", "san": "d5+" }, "after": { "fen": "rn3bnr/1p2p2p/2pqbkp1/3P1p2/8/2B1P3/PPP2PPP/R2QR1K1 b - - 0 14", "side_to_move": "black", "pieces": { "a1": "white rook", "d1": "white queen", "e1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "c3": "white bishop", "e3": "white pawn", "d5": "white pawn", "f5": "black pawn", "c6": "black pawn", "d6": "black queen", "e6": "black bishop", "f6": "black king", "g6": "black pawn", "b7": "black pawn", "e7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": true, "terminal": false } }, "questions": { "loses_material": { "type": "noul", "instructions": "After the candidate White move, can Black force a net material gain soon? Check legal captures, recaptures and attacks on ALL White pieces. A fair exchange is not a loss; merely being attacked is not enough. Assess from White perspective." }, "allows_mate": { "type": "noul", "instructions": "Can Black checkmate White on its very next move in the after position?" }, "quality": { "type": "score", "instructions": "Evaluate the candidate for White after Black responds strongly. Do not reward a check that sacrifices material without compensation.", "criteria": [ "Losing blunder", "Dubious or wasteful", "Playable", "Good", "Winning or excellent" ] }, "black_reply": { "type": "choice", "instructions": "Play Black in the AFTER position. Choose the strongest reply to punish White, especially hanging pieces or checkmate. Every offered move is legal.", "criteria": { "d6e5": "Qe5", "f6f7": "Kf7", "f6g5": "Kg5" } } } }, "safety": null, "turn": 14, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "loses_material": { "type": "noul", "noul": 0.45 }, "allows_mate": { "type": "noul", "noul": 0.12 }, "quality": { "type": "score", "score": 1.59, "legend": { "0": "Losing blunder", "1": "Dubious or wasteful", "2": "Playable", "3": "Good", "4": "Winning or excellent" }, "probabilities": { "0": 0.21, "1": 0.34, "2": 0.19, "3": 0.19, "4": 0.07 }, "confidence": 0.16 }, "black_reply": { "type": "choice", "choice": "d6e5", "probabilities": { "f6f7": 0.16, "d6e5": 0.62, "f6g5": 0.22 }, "confidence": 0.42 } }, "usage": { "input_tokens": 1265, "output_tokens": 100, "cost": 5.313e-05 }, "provider": "TypeSafe" }, "elapsed_s": 1.3775553359882906 }, { "stage": "review", "candidate": "e3e4", "request": { "model": "typesafe/jev-1.13", "state": { "before": { "fen": "rn3bnr/1p2p2p/2pqbkp1/5p2/3P4/2B1P3/PPP2PPP/R2QR1K1 w - - 0 14", "side_to_move": "white", "pieces": { "a1": "white rook", "d1": "white queen", "e1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "c3": "white bishop", "e3": "white pawn", "d4": "white pawn", "f5": "black pawn", "c6": "black pawn", "d6": "black queen", "e6": "black bishop", "f6": "black king", "g6": "black pawn", "b7": "black pawn", "e7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false }, "candidate": { "uci": "e3e4", "san": "e4" }, "after": { "fen": "rn3bnr/1p2p2p/2pqbkp1/5p2/3PP3/2B5/PPP2PPP/R2QR1K1 b - - 0 14", "side_to_move": "black", "pieces": { "a1": "white rook", "d1": "white queen", "e1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "c3": "white bishop", "d4": "white pawn", "e4": "white pawn", "f5": "black pawn", "c6": "black pawn", "d6": "black queen", "e6": "black bishop", "f6": "black king", "g6": "black pawn", "b7": "black pawn", "e7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false } }, "questions": { "loses_material": { "type": "noul", "instructions": "After the candidate White move, can Black force a net material gain soon? Check legal captures, recaptures and attacks on ALL White pieces. A fair exchange is not a loss; merely being attacked is not enough. Assess from White perspective." }, "allows_mate": { "type": "noul", "instructions": "Can Black checkmate White on its very next move in the after position?" }, "quality": { "type": "score", "instructions": "Evaluate the candidate for White after Black responds strongly. Do not reward a check that sacrifices material without compensation.", "criteria": [ "Losing blunder", "Dubious or wasteful", "Playable", "Good", "Winning or excellent" ] }, "black_reply": { "type": "choice", "instructions": "Play Black in the AFTER position. Choose the strongest reply to punish White, especially hanging pieces or checkmate. Every offered move is legal.", "criteria": { "a8a2": "Rxa2", "a8a3": "Ra3", "a8a4": "Ra4", "a8a5": "Ra5", "a8a6": "Ra6", "a8a7": "Ra7", "b7b5": "b5", "b7b6": "b6", "b8a6": "Na6", "b8d7": "Nd7", "c6c5": "c5", "d6a3": "Qa3", "d6b4": "Qb4", "d6c5": "Qc5", "d6c7": "Qc7", "d6d4": "Qxd4", "d6d5": "Qd5", "d6d7": "Qd7", "d6d8": "Qd8", "d6e5": "Qe5", "d6f4": "Qf4", "d6g3": "Qg3", "d6h2": "Qxh2+", "e6a2": "Bxa2", "e6b3": "Bb3", "e6c4": "Bc4", "e6c8": "Bc8", "e6d5": "Bd5", "e6d7": "Bd7", "e6f7": "Bf7", "f5e4": "fxe4", "f5f4": "f4", "f6f7": "Kf7", "f6g5": "Kg5", "f6g7": "Kg7", "f8g7": "Bg7", "f8h6": "Bh6", "g6g5": "g5", "g8h6": "Nh6", "h7h5": "h5", "h7h6": "h6" } } } }, "safety": null, "turn": 14, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "loses_material": { "type": "noul", "noul": 0.31 }, "allows_mate": { "type": "noul", "noul": 0.08 }, "quality": { "type": "score", "score": 1.88, "legend": { "0": "Losing blunder", "1": "Dubious or wasteful", "2": "Playable", "3": "Good", "4": "Winning or excellent" }, "probabilities": { "0": 0.07, "1": 0.27, "2": 0.39, "3": 0.25, "4": 0.02 }, "confidence": 0.41 }, "black_reply": { "type": "choice", "choice": "f5e4", "probabilities": { "b7b5": 0, "a8a7": 0, "e6d5": 0.01, "b7b6": 0, "e6c4": 0.03, "e6c8": 0.01, "a8a2": 0.02, "e6f7": 0, "f6g7": 0, "h7h5": 0, "f5e4": 0.39, "d6b4": 0.01, "c6c5": 0.01, "d6c5": 0.01, "f6f7": 0, "f6g5": 0, "d6a3": 0.02, "a8a5": 0, "d6f4": 0.01, "b8d7": 0, "d6d4": 0.21000000000000002, "a8a3": 0, "f8g7": 0, "d6e5": 0.02, "h7h6": 0, "e6b3": 0.01, "d6d8": 0, "d6d7": 0, "e6a2": 0.03, "f5f4": 0, "g8h6": 0, "a8a6": 0, "g6g5": 0.01, "d6d5": 0, "d6g3": 0.04, "e6d7": 0, "a8a4": 0, "d6c7": 0, "b8a6": 0, "d6h2": 0.16, "f8h6": 0 }, "confidence": 0.36 } }, "usage": { "input_tokens": 1882, "output_tokens": 480, "cost": 7.9044e-05 }, "provider": "TypeSafe" }, "elapsed_s": 1.6097841750597581 }, { "stage": "review", "candidate": "d1g4", "request": { "model": "typesafe/jev-1.13", "state": { "before": { "fen": "rn3bnr/1p2p2p/2pqbkp1/5p2/3P4/2B1P3/PPP2PPP/R2QR1K1 w - - 0 14", "side_to_move": "white", "pieces": { "a1": "white rook", "d1": "white queen", "e1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "c3": "white bishop", "e3": "white pawn", "d4": "white pawn", "f5": "black pawn", "c6": "black pawn", "d6": "black queen", "e6": "black bishop", "f6": "black king", "g6": "black pawn", "b7": "black pawn", "e7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false }, "candidate": { "uci": "d1g4", "san": "Qg4" }, "after": { "fen": "rn3bnr/1p2p2p/2pqbkp1/5p2/3P2Q1/2B1P3/PPP2PPP/R3R1K1 b - - 1 14", "side_to_move": "black", "pieces": { "a1": "white rook", "e1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "c3": "white bishop", "e3": "white pawn", "d4": "white pawn", "g4": "white queen", "f5": "black pawn", "c6": "black pawn", "d6": "black queen", "e6": "black bishop", "f6": "black king", "g6": "black pawn", "b7": "black pawn", "e7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false } }, "questions": { "loses_material": { "type": "noul", "instructions": "After the candidate White move, can Black force a net material gain soon? Check legal captures, recaptures and attacks on ALL White pieces. A fair exchange is not a loss; merely being attacked is not enough. Assess from White perspective." }, "allows_mate": { "type": "noul", "instructions": "Can Black checkmate White on its very next move in the after position?" }, "quality": { "type": "score", "instructions": "Evaluate the candidate for White after Black responds strongly. Do not reward a check that sacrifices material without compensation.", "criteria": [ "Losing blunder", "Dubious or wasteful", "Playable", "Good", "Winning or excellent" ] }, "black_reply": { "type": "choice", "instructions": "Play Black in the AFTER position. Choose the strongest reply to punish White, especially hanging pieces or checkmate. Every offered move is legal.", "criteria": { "a8a2": "Rxa2", "a8a3": "Ra3", "a8a4": "Ra4", "a8a5": "Ra5", "a8a6": "Ra6", "a8a7": "Ra7", "b7b5": "b5", "b7b6": "b6", "b8a6": "Na6", "b8d7": "Nd7", "c6c5": "c5", "d6a3": "Qa3", "d6b4": "Qb4", "d6c5": "Qc5", "d6c7": "Qc7", "d6d4": "Qxd4", "d6d5": "Qd5", "d6d7": "Qd7", "d6d8": "Qd8", "d6e5": "Qe5", "d6f4": "Qf4", "d6g3": "Qg3", "d6h2": "Qxh2+", "e6a2": "Bxa2", "e6b3": "Bb3", "e6c4": "Bc4", "e6c8": "Bc8", "e6d5": "Bd5", "e6d7": "Bd7", "e6f7": "Bf7", "f5f4": "f4", "f5g4": "fxg4", "f6f7": "Kf7", "f6g7": "Kg7", "f8g7": "Bg7", "f8h6": "Bh6", "g6g5": "g5", "g8h6": "Nh6", "h7h5": "h5", "h7h6": "h6" } } } }, "safety": null, "turn": 14, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "loses_material": { "type": "noul", "noul": 0.43 }, "allows_mate": { "type": "noul", "noul": 0.12 }, "quality": { "type": "score", "score": 1.57, "legend": { "0": "Losing blunder", "1": "Dubious or wasteful", "2": "Playable", "3": "Good", "4": "Winning or excellent" }, "probabilities": { "0": 0.15, "1": 0.38, "2": 0.25, "3": 0.18, "4": 0.04 }, "confidence": 0.27 }, "black_reply": { "type": "choice", "choice": "f5g4", "probabilities": { "e6c4": 0.01, "d6g3": 0.03, "e6d5": 0, "d6f4": 0.02, "a8a7": 0, "a8a2": 0.01, "d6d8": 0, "g8h6": 0.01, "g6g5": 0.01, "d6c7": 0, "d6a3": 0.01, "e6b3": 0, "b7b6": 0, "e6c8": 0, "d6d4": 0.04, "b7b5": 0, "h7h6": 0, "f5g4": 0.76, "a8a5": 0, "f8g7": 0, "f8h6": 0, "f6g7": 0, "b8a6": 0, "e6a2": 0.01, "c6c5": 0, "h7h5": 0, "f5f4": 0.01, "e6d7": 0, "a8a3": 0, "d6b4": 0.01, "a8a6": 0, "e6f7": 0, "a8a4": 0, "d6c5": 0.01, "d6e5": 0.01, "b8d7": 0, "d6d5": 0, "d6d7": 0, "f6f7": 0, "d6h2": 0.05 }, "confidence": 0.75 } }, "usage": { "input_tokens": 1870, "output_tokens": 470, "cost": 7.854e-05 }, "provider": "TypeSafe" }, "elapsed_s": 1.7345409190747887 }, { "stage": "selection", "candidate": null, "request": { "model": "typesafe/jev-1.13", "state": { "position": { "fen": "rn3bnr/1p2p2p/2pqbkp1/5p2/3P4/2B1P3/PPP2PPP/R2QR1K1 w - - 0 14", "board": "8 r n . . . b n r\n7 . p . . p . . p\n6 . . p q b k p .\n5 . . . . . p . .\n4 . . . P . . . .\n3 . . B . P . . .\n2 P P P . . P P P\n1 R . . Q R . K .\n a b c d e f g h", "legend": "Uppercase = White, lowercase = Black. P pawn, N knight, B bishop, R rook, Q queen, K king; . empty.", "you_play": "White", "in_check": false, "history_uci": [ "g1f3", "a7a5", "b1c3", "f7f5", "d2d4", "e8f7", "e2e3", "c7c6", "f1c4", "d7d5", "e1g1", "d5c4", "f3e5", "f7f6", "e5c4", "c8e6", "c3d5", "d8d5", "c4a5", "d5a5", "c1d2", "a5d8", "f1e1", "d8d6", "d2c3", "g7g6" ], "history_san": [ "Nf3", "a5", "Nc3", "f5", "d4", "Kf7", "e3", "c6", "Bc4+", "d5", "O-O", "dxc4", "Ne5+", "Kf6", "Nxc4", "Be6", "Nd5+", "Qxd5", "Nxa5", "Qxa5", "Bd2", "Qd8", "Re1", "Qd6", "Bc3", "g6" ], "pieces": { "white": { "a1": "rook", "d1": "queen", "e1": "rook", "g1": "king", "a2": "pawn", "b2": "pawn", "c2": "pawn", "f2": "pawn", "g2": "pawn", "h2": "pawn", "c3": "bishop", "e3": "pawn", "d4": "pawn" }, "black": { "f5": "pawn", "c6": "pawn", "d6": "queen", "e6": "bishop", "f6": "king", "g6": "pawn", "b7": "pawn", "e7": "pawn", "h7": "pawn", "a8": "rook", "b8": "knight", "f8": "bishop", "g8": "knight", "h8": "rook" } } }, "reviews": [ { "uci": "d4d5", "proposal_probability": 0.24, "loss_probability": 0.45, "mate_probability": 0.12, "quality": 1.59, "black_reply": "d6e5", "after_model_reply": { "fen": "rn3bnr/1p2p2p/2p1bkp1/3Pqp2/8/2B1P3/PPP2PPP/R2QR1K1 w - - 1 15", "side_to_move": "white", "pieces": { "a1": "white rook", "d1": "white queen", "e1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "c3": "white bishop", "e3": "white pawn", "d5": "white pawn", "e5": "black queen", "f5": "black pawn", "c6": "black pawn", "e6": "black bishop", "f6": "black king", "g6": "black pawn", "b7": "black pawn", "e7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false } }, { "uci": "e3e4", "proposal_probability": 0.08, "loss_probability": 0.31, "mate_probability": 0.08, "quality": 1.88, "black_reply": "f5e4", "after_model_reply": { "fen": "rn3bnr/1p2p2p/2pqbkp1/8/3Pp3/2B5/PPP2PPP/R2QR1K1 w - - 0 15", "side_to_move": "white", "pieces": { "a1": "white rook", "d1": "white queen", "e1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "c3": "white bishop", "d4": "white pawn", "e4": "black pawn", "c6": "black pawn", "d6": "black queen", "e6": "black bishop", "f6": "black king", "g6": "black pawn", "b7": "black pawn", "e7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false } }, { "uci": "d1g4", "proposal_probability": 0.05, "loss_probability": 0.43, "mate_probability": 0.12, "quality": 1.57, "black_reply": "f5g4", "after_model_reply": { "fen": "rn3bnr/1p2p2p/2pqbkp1/8/3P2p1/2B1P3/PPP2PPP/R3R1K1 w - - 0 15", "side_to_move": "white", "pieces": { "a1": "white rook", "e1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "c3": "white bishop", "e3": "white pawn", "d4": "white pawn", "g4": "black pawn", "c6": "black pawn", "d6": "black queen", "e6": "black bishop", "f6": "black king", "g6": "black pawn", "b7": "black pawn", "e7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false } } ], "warning": "Reviews and Black replies are fallible predictions of the same Jev model, not verified engine evaluations." }, "questions": { "move": { "type": "choice", "instructions": "Choose the best White move from the reviewed candidates. Independently check each hypothetical Black reply, captures and recaptures. Prefer avoiding material loss, then useful progress and king safety. Reviews may be wrong. A high proposal probability does not prove a good move.", "criteria": { "d4d5": "pawn d4 to d5; SAN d5+", "e3e4": "pawn e3 to e4; SAN e4", "d1g4": "queen d1 to g4; SAN Qg4" } } } }, "safety": null, "turn": 14, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "move": { "type": "choice", "choice": "e3e4", "probabilities": { "e3e4": 0.5, "d1g4": 0.14, "d4d5": 0.36 }, "confidence": 0.26 } }, "usage": { "input_tokens": 2522, "output_tokens": 50, "cost": 0.000105924 }, "provider": "TypeSafe" }, "elapsed_s": 1.3305245010415092 }, { "stage": "proposal", "candidate": null, "request": { "model": "typesafe/jev-1.13", "state": { "fen": "rn3bnr/1p2p2p/2pqbkp1/8/3Pp3/2B5/PPP2PPP/R2QR1K1 w - - 0 15", "board": "8 r n . . . b n r\n7 . p . . p . . p\n6 . . p q b k p .\n5 . . . . . . . .\n4 . . . P p . . .\n3 . . B . . . . .\n2 P P P . . P P P\n1 R . . Q R . K .\n a b c d e f g h", "legend": "Uppercase = White, lowercase = Black. P pawn, N knight, B bishop, R rook, Q queen, K king; . empty.", "you_play": "White", "in_check": false, "history_uci": [ "g1f3", "a7a5", "b1c3", "f7f5", "d2d4", "e8f7", "e2e3", "c7c6", "f1c4", "d7d5", "e1g1", "d5c4", "f3e5", "f7f6", "e5c4", "c8e6", "c3d5", "d8d5", "c4a5", "d5a5", "c1d2", "a5d8", "f1e1", "d8d6", "d2c3", "g7g6", "e3e4", "f5e4" ], "history_san": [ "Nf3", "a5", "Nc3", "f5", "d4", "Kf7", "e3", "c6", "Bc4+", "d5", "O-O", "dxc4", "Ne5+", "Kf6", "Nxc4", "Be6", "Nd5+", "Qxd5", "Nxa5", "Qxa5", "Bd2", "Qd8", "Re1", "Qd6", "Bc3", "g6", "e4", "fxe4" ], "pieces": { "white": { "a1": "rook", "d1": "queen", "e1": "rook", "g1": "king", "a2": "pawn", "b2": "pawn", "c2": "pawn", "f2": "pawn", "g2": "pawn", "h2": "pawn", "c3": "bishop", "d4": "pawn" }, "black": { "e4": "pawn", "c6": "pawn", "d6": "queen", "e6": "bishop", "f6": "king", "g6": "pawn", "b7": "pawn", "e7": "pawn", "h7": "pawn", "a8": "rook", "b8": "knight", "f8": "bishop", "g8": "knight", "h8": "rook" } } }, "questions": { "move": { "type": "choice", "instructions": "Choose one legal White move. You alone evaluate the moves; their list is unranked. Use the explicit piece locations to check the destination and any lines opened by moving. First consider whether Black can capture your queen, rook or minor pieces after the move. Count both sides of an exchange: pawn=1, knight/bishop=3, rook=5, queen=9. Prefer keeping material unless you can establish a concrete profitable continuation. Giving check is NOT compensation for losing a piece. When no tactic works, develop or improve a safe piece. Protect your king and aim for checkmate. Read the history to avoid purposeless repeats when ahead; a draw can be useful when losing. Return one offered UCI move.", "criteria": { "a1b1": "rook a1 to b1; SAN Rb1", "a1c1": "rook a1 to c1; SAN Rc1", "a2a3": "pawn a2 to a3; SAN a3", "a2a4": "pawn a2 to a4; SAN a4", "b2b3": "pawn b2 to b3; SAN b3", "b2b4": "pawn b2 to b4; SAN b4", "c3a5": "bishop c3 to a5; SAN Ba5", "c3b4": "bishop c3 to b4; SAN Bb4", "c3d2": "bishop c3 to d2; SAN Bd2", "d1b1": "queen d1 to b1; SAN Qb1", "d1c1": "queen d1 to c1; SAN Qc1", "d1d2": "queen d1 to d2; SAN Qd2", "d1d3": "queen d1 to d3; SAN Qd3", "d1e2": "queen d1 to e2; SAN Qe2", "d1f3": "queen d1 to f3; SAN Qf3+", "d1g4": "queen d1 to g4; SAN Qg4", "d1h5": "queen d1 to h5; SAN Qh5", "d4d5": "pawn d4 to d5; SAN d5+", "e1e2": "rook e1 to e2; SAN Re2", "e1e3": "rook e1 to e3; SAN Re3", "e1e4": "rook e1 to e4; captures pawn; SAN Rxe4", "e1f1": "rook e1 to f1; SAN Rf1", "f2f3": "pawn f2 to f3; SAN f3", "f2f4": "pawn f2 to f4; SAN f4", "g1f1": "king g1 to f1; SAN Kf1", "g1h1": "king g1 to h1; SAN Kh1", "g2g3": "pawn g2 to g3; SAN g3", "g2g4": "pawn g2 to g4; SAN g4", "h2h3": "pawn h2 to h3; SAN h3", "h2h4": "pawn h2 to h4; SAN h4" } } } }, "safety": null, "turn": 15, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "move": { "type": "choice", "choice": "e1e4", "probabilities": { "a1b1": 0.01, "e1f1": 0.02, "f2f3": 0.02, "g2g3": 0.01, "d1d3": 0.02, "d1c1": 0.01, "d1g4": 0.02, "g2g4": 0, "c3a5": 0.02, "e1e3": 0.03, "d1h5": 0.02, "a1c1": 0.01, "b2b4": 0.01, "b2b3": 0.01, "e1e4": 0.54, "d1f3": 0.04, "h2h3": 0, "d1e2": 0.02, "g1f1": 0.01, "d1b1": 0.01, "f2f4": 0.01, "d1d2": 0.01, "e1e2": 0.01, "g1h1": 0.01, "a2a3": 0.01, "h2h4": 0, "c3b4": 0.01, "a2a4": 0.01, "c3d2": 0.01, "d4d5": 0.09 }, "confidence": 0.52 } }, "usage": { "input_tokens": 1992, "output_tokens": 320, "cost": 8.3664e-05 }, "provider": "TypeSafe" }, "elapsed_s": 1.3757726260228083 }, { "stage": "review", "candidate": "e1e4", "request": { "model": "typesafe/jev-1.13", "state": { "before": { "fen": "rn3bnr/1p2p2p/2pqbkp1/8/3Pp3/2B5/PPP2PPP/R2QR1K1 w - - 0 15", "side_to_move": "white", "pieces": { "a1": "white rook", "d1": "white queen", "e1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "c3": "white bishop", "d4": "white pawn", "e4": "black pawn", "c6": "black pawn", "d6": "black queen", "e6": "black bishop", "f6": "black king", "g6": "black pawn", "b7": "black pawn", "e7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false }, "candidate": { "uci": "e1e4", "san": "Rxe4" }, "after": { "fen": "rn3bnr/1p2p2p/2pqbkp1/8/3PR3/2B5/PPP2PPP/R2Q2K1 b - - 0 15", "side_to_move": "black", "pieces": { "a1": "white rook", "d1": "white queen", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "c3": "white bishop", "d4": "white pawn", "e4": "white rook", "c6": "black pawn", "d6": "black queen", "e6": "black bishop", "f6": "black king", "g6": "black pawn", "b7": "black pawn", "e7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false } }, "questions": { "loses_material": { "type": "noul", "instructions": "After the candidate White move, can Black force a net material gain soon? Check legal captures, recaptures and attacks on ALL White pieces. A fair exchange is not a loss; merely being attacked is not enough. Assess from White perspective." }, "allows_mate": { "type": "noul", "instructions": "Can Black checkmate White on its very next move in the after position?" }, "quality": { "type": "score", "instructions": "Evaluate the candidate for White after Black responds strongly. Do not reward a check that sacrifices material without compensation.", "criteria": [ "Losing blunder", "Dubious or wasteful", "Playable", "Good", "Winning or excellent" ] }, "black_reply": { "type": "choice", "instructions": "Play Black in the AFTER position. Choose the strongest reply to punish White, especially hanging pieces or checkmate. Every offered move is legal.", "criteria": { "a8a2": "Rxa2", "a8a3": "Ra3", "a8a4": "Ra4", "a8a5": "Ra5", "a8a6": "Ra6", "a8a7": "Ra7", "b7b5": "b5", "b7b6": "b6", "b8a6": "Na6", "b8d7": "Nd7", "c6c5": "c5", "d6a3": "Qa3", "d6b4": "Qb4", "d6c5": "Qc5", "d6c7": "Qc7", "d6d4": "Qxd4", "d6d5": "Qd5", "d6d7": "Qd7", "d6d8": "Qd8", "d6e5": "Qe5", "d6f4": "Qf4", "d6g3": "Qg3", "d6h2": "Qxh2+", "e6a2": "Bxa2", "e6b3": "Bb3", "e6c4": "Bc4", "e6c8": "Bc8", "e6d5": "Bd5", "e6d7": "Bd7", "e6f5": "Bf5", "e6f7": "Bf7", "e6g4": "Bg4", "e6h3": "Bh3", "f6f5": "Kf5", "f6f7": "Kf7", "f6g5": "Kg5", "f6g7": "Kg7", "f8g7": "Bg7", "f8h6": "Bh6", "g6g5": "g5", "g8h6": "Nh6", "h7h5": "h5", "h7h6": "h6" } } } }, "safety": null, "turn": 15, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "loses_material": { "type": "noul", "noul": 0.49 }, "allows_mate": { "type": "noul", "noul": 0.11 }, "quality": { "type": "score", "score": 2.19, "legend": { "0": "Losing blunder", "1": "Dubious or wasteful", "2": "Playable", "3": "Good", "4": "Winning or excellent" }, "probabilities": { "0": 0.13, "1": 0.21, "2": 0.18, "3": 0.31, "4": 0.17 }, "confidence": 0.04 }, "black_reply": { "type": "choice", "choice": "d6h2", "probabilities": { "f6g7": 0, "d6c5": 0.02, "a8a7": 0, "d6c7": 0, "a8a6": 0, "f8h6": 0.01, "e6b3": 0.01, "b8d7": 0.01, "d6f4": 0.04, "d6g3": 0.06, "e6d5": 0.02, "d6d4": 0.23, "f6g5": 0.01, "f8g7": 0.01, "g6g5": 0, "e6f5": 0, "e6c8": 0.01, "d6e5": 0.06, "a8a5": 0, "e6h3": 0.01, "d6a3": 0.03, "a8a2": 0.02, "e6a2": 0.03, "g8h6": 0, "c6c5": 0.01, "e6c4": 0.03, "b7b6": 0, "b7b5": 0, "h7h6": 0.01, "f6f5": 0, "d6d7": 0, "a8a3": 0.01, "e6f7": 0, "a8a4": 0.01, "d6d8": 0.01, "b8a6": 0, "d6b4": 0.03, "e6g4": 0.01, "d6d5": 0.01, "f6f7": 0, "h7h5": 0, "d6h2": 0.29000000000000004, "e6d7": 0 }, "confidence": 0.26 } }, "usage": { "input_tokens": 1881, "output_tokens": 500, "cost": 7.9002e-05 }, "provider": "TypeSafe" }, "elapsed_s": 1.66523623210378 }, { "stage": "review", "candidate": "d4d5", "request": { "model": "typesafe/jev-1.13", "state": { "before": { "fen": "rn3bnr/1p2p2p/2pqbkp1/8/3Pp3/2B5/PPP2PPP/R2QR1K1 w - - 0 15", "side_to_move": "white", "pieces": { "a1": "white rook", "d1": "white queen", "e1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "c3": "white bishop", "d4": "white pawn", "e4": "black pawn", "c6": "black pawn", "d6": "black queen", "e6": "black bishop", "f6": "black king", "g6": "black pawn", "b7": "black pawn", "e7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false }, "candidate": { "uci": "d4d5", "san": "d5+" }, "after": { "fen": "rn3bnr/1p2p2p/2pqbkp1/3P4/4p3/2B5/PPP2PPP/R2QR1K1 b - - 0 15", "side_to_move": "black", "pieces": { "a1": "white rook", "d1": "white queen", "e1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "c3": "white bishop", "e4": "black pawn", "d5": "white pawn", "c6": "black pawn", "d6": "black queen", "e6": "black bishop", "f6": "black king", "g6": "black pawn", "b7": "black pawn", "e7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": true, "terminal": false } }, "questions": { "loses_material": { "type": "noul", "instructions": "After the candidate White move, can Black force a net material gain soon? Check legal captures, recaptures and attacks on ALL White pieces. A fair exchange is not a loss; merely being attacked is not enough. Assess from White perspective." }, "allows_mate": { "type": "noul", "instructions": "Can Black checkmate White on its very next move in the after position?" }, "quality": { "type": "score", "instructions": "Evaluate the candidate for White after Black responds strongly. Do not reward a check that sacrifices material without compensation.", "criteria": [ "Losing blunder", "Dubious or wasteful", "Playable", "Good", "Winning or excellent" ] }, "black_reply": { "type": "choice", "instructions": "Play Black in the AFTER position. Choose the strongest reply to punish White, especially hanging pieces or checkmate. Every offered move is legal.", "criteria": { "d6e5": "Qe5", "f6f5": "Kf5", "f6f7": "Kf7", "f6g5": "Kg5" } } } }, "safety": null, "turn": 15, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "loses_material": { "type": "noul", "noul": 0.42 }, "allows_mate": { "type": "noul", "noul": 0.12 }, "quality": { "type": "score", "score": 1.64, "legend": { "0": "Losing blunder", "1": "Dubious or wasteful", "2": "Playable", "3": "Good", "4": "Winning or excellent" }, "probabilities": { "0": 0.19, "1": 0.34, "2": 0.2, "3": 0.2, "4": 0.07 }, "confidence": 0.16 }, "black_reply": { "type": "choice", "choice": "d6e5", "probabilities": { "f6f5": 0.16, "f6g5": 0.15, "d6e5": 0.55, "f6f7": 0.14 }, "confidence": 0.4 } }, "usage": { "input_tokens": 1257, "output_tokens": 110, "cost": 5.2794e-05 }, "provider": "TypeSafe" }, "elapsed_s": 2.197242775000632 }, { "stage": "review", "candidate": "d1f3", "request": { "model": "typesafe/jev-1.13", "state": { "before": { "fen": "rn3bnr/1p2p2p/2pqbkp1/8/3Pp3/2B5/PPP2PPP/R2QR1K1 w - - 0 15", "side_to_move": "white", "pieces": { "a1": "white rook", "d1": "white queen", "e1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "c3": "white bishop", "d4": "white pawn", "e4": "black pawn", "c6": "black pawn", "d6": "black queen", "e6": "black bishop", "f6": "black king", "g6": "black pawn", "b7": "black pawn", "e7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false }, "candidate": { "uci": "d1f3", "san": "Qf3+" }, "after": { "fen": "rn3bnr/1p2p2p/2pqbkp1/8/3Pp3/2B2Q2/PPP2PPP/R3R1K1 b - - 1 15", "side_to_move": "black", "pieces": { "a1": "white rook", "e1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "c3": "white bishop", "f3": "white queen", "d4": "white pawn", "e4": "black pawn", "c6": "black pawn", "d6": "black queen", "e6": "black bishop", "f6": "black king", "g6": "black pawn", "b7": "black pawn", "e7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": true, "terminal": false } }, "questions": { "loses_material": { "type": "noul", "instructions": "After the candidate White move, can Black force a net material gain soon? Check legal captures, recaptures and attacks on ALL White pieces. A fair exchange is not a loss; merely being attacked is not enough. Assess from White perspective." }, "allows_mate": { "type": "noul", "instructions": "Can Black checkmate White on its very next move in the after position?" }, "quality": { "type": "score", "instructions": "Evaluate the candidate for White after Black responds strongly. Do not reward a check that sacrifices material without compensation.", "criteria": [ "Losing blunder", "Dubious or wasteful", "Playable", "Good", "Winning or excellent" ] }, "black_reply": { "type": "choice", "instructions": "Play Black in the AFTER position. Choose the strongest reply to punish White, especially hanging pieces or checkmate. Every offered move is legal.", "criteria": { "d6f4": "Qf4", "e4f3": "exf3", "e6f5": "Bf5", "f6g5": "Kg5", "f6g7": "Kg7" } } } }, "safety": null, "turn": 15, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "loses_material": { "type": "noul", "noul": 0.44 }, "allows_mate": { "type": "noul", "noul": 0.17 }, "quality": { "type": "score", "score": 1.76, "legend": { "0": "Losing blunder", "1": "Dubious or wasteful", "2": "Playable", "3": "Good", "4": "Winning or excellent" }, "probabilities": { "0": 0.16, "1": 0.32, "2": 0.22, "3": 0.21, "4": 0.09 }, "confidence": 0.1 }, "black_reply": { "type": "choice", "choice": "e4f3", "probabilities": { "e6f5": 0.06, "e4f3": 0.74, "d6f4": 0.13, "f6g5": 0.03, "f6g7": 0.04 }, "confidence": 0.68 } }, "usage": { "input_tokens": 1275, "output_tokens": 120, "cost": 5.355e-05 }, "provider": "TypeSafe" }, "elapsed_s": 1.5705937719903886 }, { "stage": "selection", "candidate": null, "request": { "model": "typesafe/jev-1.13", "state": { "position": { "fen": "rn3bnr/1p2p2p/2pqbkp1/8/3Pp3/2B5/PPP2PPP/R2QR1K1 w - - 0 15", "board": "8 r n . . . b n r\n7 . p . . p . . p\n6 . . p q b k p .\n5 . . . . . . . .\n4 . . . P p . . .\n3 . . B . . . . .\n2 P P P . . P P P\n1 R . . Q R . K .\n a b c d e f g h", "legend": "Uppercase = White, lowercase = Black. P pawn, N knight, B bishop, R rook, Q queen, K king; . empty.", "you_play": "White", "in_check": false, "history_uci": [ "g1f3", "a7a5", "b1c3", "f7f5", "d2d4", "e8f7", "e2e3", "c7c6", "f1c4", "d7d5", "e1g1", "d5c4", "f3e5", "f7f6", "e5c4", "c8e6", "c3d5", "d8d5", "c4a5", "d5a5", "c1d2", "a5d8", "f1e1", "d8d6", "d2c3", "g7g6", "e3e4", "f5e4" ], "history_san": [ "Nf3", "a5", "Nc3", "f5", "d4", "Kf7", "e3", "c6", "Bc4+", "d5", "O-O", "dxc4", "Ne5+", "Kf6", "Nxc4", "Be6", "Nd5+", "Qxd5", "Nxa5", "Qxa5", "Bd2", "Qd8", "Re1", "Qd6", "Bc3", "g6", "e4", "fxe4" ], "pieces": { "white": { "a1": "rook", "d1": "queen", "e1": "rook", "g1": "king", "a2": "pawn", "b2": "pawn", "c2": "pawn", "f2": "pawn", "g2": "pawn", "h2": "pawn", "c3": "bishop", "d4": "pawn" }, "black": { "e4": "pawn", "c6": "pawn", "d6": "queen", "e6": "bishop", "f6": "king", "g6": "pawn", "b7": "pawn", "e7": "pawn", "h7": "pawn", "a8": "rook", "b8": "knight", "f8": "bishop", "g8": "knight", "h8": "rook" } } }, "reviews": [ { "uci": "e1e4", "proposal_probability": 0.54, "loss_probability": 0.49, "mate_probability": 0.11, "quality": 2.19, "black_reply": "d6h2", "after_model_reply": { "fen": "rn3bnr/1p2p2p/2p1bkp1/8/3PR3/2B5/PPP2PPq/R2Q2K1 w - - 0 16", "side_to_move": "white", "pieces": { "a1": "white rook", "d1": "white queen", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "black queen", "c3": "white bishop", "d4": "white pawn", "e4": "white rook", "c6": "black pawn", "e6": "black bishop", "f6": "black king", "g6": "black pawn", "b7": "black pawn", "e7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": true, "terminal": false } }, { "uci": "d4d5", "proposal_probability": 0.09, "loss_probability": 0.42, "mate_probability": 0.12, "quality": 1.64, "black_reply": "d6e5", "after_model_reply": { "fen": "rn3bnr/1p2p2p/2p1bkp1/3Pq3/4p3/2B5/PPP2PPP/R2QR1K1 w - - 1 16", "side_to_move": "white", "pieces": { "a1": "white rook", "d1": "white queen", "e1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "c3": "white bishop", "e4": "black pawn", "d5": "white pawn", "e5": "black queen", "c6": "black pawn", "e6": "black bishop", "f6": "black king", "g6": "black pawn", "b7": "black pawn", "e7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false } }, { "uci": "d1f3", "proposal_probability": 0.04, "loss_probability": 0.44, "mate_probability": 0.17, "quality": 1.76, "black_reply": "e4f3", "after_model_reply": { "fen": "rn3bnr/1p2p2p/2pqbkp1/8/3P4/2B2p2/PPP2PPP/R3R1K1 w - - 0 16", "side_to_move": "white", "pieces": { "a1": "white rook", "e1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "c3": "white bishop", "f3": "black pawn", "d4": "white pawn", "c6": "black pawn", "d6": "black queen", "e6": "black bishop", "f6": "black king", "g6": "black pawn", "b7": "black pawn", "e7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false } } ], "warning": "Reviews and Black replies are fallible predictions of the same Jev model, not verified engine evaluations." }, "questions": { "move": { "type": "choice", "instructions": "Choose the best White move from the reviewed candidates. Independently check each hypothetical Black reply, captures and recaptures. Prefer avoiding material loss, then useful progress and king safety. Reviews may be wrong. A high proposal probability does not prove a good move.", "criteria": { "e1e4": "rook e1 to e4; captures pawn; SAN Rxe4", "d4d5": "pawn d4 to d5; SAN d5+", "d1f3": "queen d1 to f3; SAN Qf3+" } } } }, "safety": null, "turn": 15, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "move": { "type": "choice", "choice": "d4d5", "probabilities": { "d1f3": 0.19, "e1e4": 0.33, "d4d5": 0.48 }, "confidence": 0.21 } }, "usage": { "input_tokens": 2500, "output_tokens": 50, "cost": 0.000105 }, "provider": "TypeSafe" }, "elapsed_s": 1.6662699870066717 }, { "stage": "proposal", "candidate": null, "request": { "model": "typesafe/jev-1.13", "state": { "fen": "rn3bnr/1p2p2p/2pqb1p1/3P2k1/4p3/2B5/PPP2PPP/R2QR1K1 w - - 1 16", "board": "8 r n . . . b n r\n7 . p . . p . . p\n6 . . p q b . p .\n5 . . . P . . k .\n4 . . . . p . . .\n3 . . B . . . . .\n2 P P P . . P P P\n1 R . . Q R . K .\n a b c d e f g h", "legend": "Uppercase = White, lowercase = Black. P pawn, N knight, B bishop, R rook, Q queen, K king; . empty.", "you_play": "White", "in_check": false, "history_uci": [ "g1f3", "a7a5", "b1c3", "f7f5", "d2d4", "e8f7", "e2e3", "c7c6", "f1c4", "d7d5", "e1g1", "d5c4", "f3e5", "f7f6", "e5c4", "c8e6", "c3d5", "d8d5", "c4a5", "d5a5", "c1d2", "a5d8", "f1e1", "d8d6", "d2c3", "g7g6", "e3e4", "f5e4", "d4d5", "f6g5" ], "history_san": [ "Nf3", "a5", "Nc3", "f5", "d4", "Kf7", "e3", "c6", "Bc4+", "d5", "O-O", "dxc4", "Ne5+", "Kf6", "Nxc4", "Be6", "Nd5+", "Qxd5", "Nxa5", "Qxa5", "Bd2", "Qd8", "Re1", "Qd6", "Bc3", "g6", "e4", "fxe4", "d5+", "Kg5" ], "pieces": { "white": { "a1": "rook", "d1": "queen", "e1": "rook", "g1": "king", "a2": "pawn", "b2": "pawn", "c2": "pawn", "f2": "pawn", "g2": "pawn", "h2": "pawn", "c3": "bishop", "d5": "pawn" }, "black": { "e4": "pawn", "g5": "king", "c6": "pawn", "d6": "queen", "e6": "bishop", "g6": "pawn", "b7": "pawn", "e7": "pawn", "h7": "pawn", "a8": "rook", "b8": "knight", "f8": "bishop", "g8": "knight", "h8": "rook" } } }, "questions": { "move": { "type": "choice", "instructions": "Choose one legal White move. You alone evaluate the moves; their list is unranked. Use the explicit piece locations to check the destination and any lines opened by moving. First consider whether Black can capture your queen, rook or minor pieces after the move. Count both sides of an exchange: pawn=1, knight/bishop=3, rook=5, queen=9. Prefer keeping material unless you can establish a concrete profitable continuation. Giving check is NOT compensation for losing a piece. When no tactic works, develop or improve a safe piece. Protect your king and aim for checkmate. Read the history to avoid purposeless repeats when ahead; a draw can be useful when losing. Return one offered UCI move.", "criteria": { "a1b1": "rook a1 to b1; SAN Rb1", "a1c1": "rook a1 to c1; SAN Rc1", "a2a3": "pawn a2 to a3; SAN a3", "a2a4": "pawn a2 to a4; SAN a4", "b2b3": "pawn b2 to b3; SAN b3", "b2b4": "pawn b2 to b4; SAN b4", "c3a5": "bishop c3 to a5; SAN Ba5", "c3b4": "bishop c3 to b4; SAN Bb4", "c3d2": "bishop c3 to d2; SAN Bd2+", "c3d4": "bishop c3 to d4; SAN Bd4", "c3e5": "bishop c3 to e5; SAN Be5", "c3f6": "bishop c3 to f6; SAN Bf6+", "c3g7": "bishop c3 to g7; SAN Bg7", "c3h8": "bishop c3 to h8; captures rook; SAN Bxh8", "d1b1": "queen d1 to b1; SAN Qb1", "d1c1": "queen d1 to c1; SAN Qc1+", "d1d2": "queen d1 to d2; SAN Qd2+", "d1d3": "queen d1 to d3; SAN Qd3", "d1d4": "queen d1 to d4; SAN Qd4", "d1e2": "queen d1 to e2; SAN Qe2", "d1f3": "queen d1 to f3; SAN Qf3", "d1g4": "queen d1 to g4; SAN Qg4+", "d1h5": "queen d1 to h5; SAN Qh5+", "d5c6": "pawn d5 to c6; captures pawn; SAN dxc6", "d5e6": "pawn d5 to e6; captures bishop; SAN dxe6", "e1e2": "rook e1 to e2; SAN Re2", "e1e3": "rook e1 to e3; SAN Re3", "e1e4": "rook e1 to e4; captures pawn; SAN Rxe4", "e1f1": "rook e1 to f1; SAN Rf1", "f2f3": "pawn f2 to f3; SAN f3", "f2f4": "pawn f2 to f4; SAN f4+", "g1f1": "king g1 to f1; SAN Kf1", "g1h1": "king g1 to h1; SAN Kh1", "g2g3": "pawn g2 to g3; SAN g3", "g2g4": "pawn g2 to g4; SAN g4", "h2h3": "pawn h2 to h3; SAN h3", "h2h4": "pawn h2 to h4; SAN h4+" } } } }, "safety": null, "turn": 16, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "move": { "type": "choice", "choice": "e1e4", "probabilities": { "c3f6": 0.03, "c3b4": 0.01, "f2f3": 0.01, "f2f4": 0.03, "c3h8": 0.13, "b2b3": 0.01, "b2b4": 0.01, "d1d4": 0.01, "c3e5": 0.01, "a2a3": 0.01, "d1f3": 0.02, "c3g7": 0.01, "g1h1": 0.01, "a2a4": 0, "e1f1": 0.01, "g2g4": 0.01, "e1e2": 0.01, "a1b1": 0.01, "g1f1": 0.01, "d1d3": 0.01, "d1g4": 0.04, "h2h4": 0.02, "e1e3": 0.02, "d1c1": 0.02, "g2g3": 0.01, "h2h3": 0, "d1h5": 0.04, "d5c6": 0.06, "d1e2": 0.01, "c3d4": 0.01, "d1d2": 0.02, "d5e6": 0.15, "d1b1": 0, "a1c1": 0.01, "e1e4": 0.19, "c3d2": 0.03, "c3a5": 0.01 }, "confidence": 0.17 } }, "usage": { "input_tokens": 2210, "output_tokens": 390, "cost": 9.282e-05 }, "provider": "TypeSafe" }, "elapsed_s": 1.500458108028397 }, { "stage": "review", "candidate": "e1e4", "request": { "model": "typesafe/jev-1.13", "state": { "before": { "fen": "rn3bnr/1p2p2p/2pqb1p1/3P2k1/4p3/2B5/PPP2PPP/R2QR1K1 w - - 1 16", "side_to_move": "white", "pieces": { "a1": "white rook", "d1": "white queen", "e1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "c3": "white bishop", "e4": "black pawn", "d5": "white pawn", "g5": "black king", "c6": "black pawn", "d6": "black queen", "e6": "black bishop", "g6": "black pawn", "b7": "black pawn", "e7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false }, "candidate": { "uci": "e1e4", "san": "Rxe4" }, "after": { "fen": "rn3bnr/1p2p2p/2pqb1p1/3P2k1/4R3/2B5/PPP2PPP/R2Q2K1 b - - 0 16", "side_to_move": "black", "pieces": { "a1": "white rook", "d1": "white queen", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "c3": "white bishop", "e4": "white rook", "d5": "white pawn", "g5": "black king", "c6": "black pawn", "d6": "black queen", "e6": "black bishop", "g6": "black pawn", "b7": "black pawn", "e7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false } }, "questions": { "loses_material": { "type": "noul", "instructions": "After the candidate White move, can Black force a net material gain soon? Check legal captures, recaptures and attacks on ALL White pieces. A fair exchange is not a loss; merely being attacked is not enough. Assess from White perspective." }, "allows_mate": { "type": "noul", "instructions": "Can Black checkmate White on its very next move in the after position?" }, "quality": { "type": "score", "instructions": "Evaluate the candidate for White after Black responds strongly. Do not reward a check that sacrifices material without compensation.", "criteria": [ "Losing blunder", "Dubious or wasteful", "Playable", "Good", "Winning or excellent" ] }, "black_reply": { "type": "choice", "instructions": "Play Black in the AFTER position. Choose the strongest reply to punish White, especially hanging pieces or checkmate. Every offered move is legal.", "criteria": { "a8a2": "Rxa2", "a8a3": "Ra3", "a8a4": "Ra4", "a8a5": "Ra5", "a8a6": "Ra6", "a8a7": "Ra7", "b7b5": "b5", "b7b6": "b6", "b8a6": "Na6", "b8d7": "Nd7", "c6c5": "c5", "c6d5": "cxd5", "d6a3": "Qa3", "d6b4": "Qb4", "d6c5": "Qc5", "d6c7": "Qc7", "d6d5": "Qxd5", "d6d7": "Qd7", "d6d8": "Qd8", "d6e5": "Qe5", "d6f4": "Qf4", "d6g3": "Qg3", "d6h2": "Qxh2+", "e6c8": "Bc8", "e6d5": "Bxd5", "e6d7": "Bd7", "e6f5": "Bf5", "e6f7": "Bf7", "e6g4": "Bg4", "e6h3": "Bh3", "f8g7": "Bg7", "f8h6": "Bh6", "g5f5": "Kf5", "g5h6": "Kh6", "g8f6": "Nf6", "g8h6": "Nh6", "h7h5": "h5", "h7h6": "h6" } } } }, "safety": null, "turn": 16, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "loses_material": { "type": "noul", "noul": 0.51 }, "allows_mate": { "type": "noul", "noul": 0.18 }, "quality": { "type": "score", "score": 2.25, "legend": { "0": "Losing blunder", "1": "Dubious or wasteful", "2": "Playable", "3": "Good", "4": "Winning or excellent" }, "probabilities": { "0": 0.11, "1": 0.2, "2": 0.18, "3": 0.35, "4": 0.16 }, "confidence": 0.11 }, "black_reply": { "type": "choice", "choice": "d6h2", "probabilities": { "e6c8": 0, "g5f5": 0.01, "d6f4": 0.05, "h7h6": 0, "a8a5": 0.01, "f8g7": 0, "d6g3": 0.07, "d6h2": 0.24, "d6d5": 0.12, "a8a6": 0, "f8h6": 0, "e6f5": 0.01, "g8h6": 0, "e6f7": 0, "g8f6": 0.01, "g5h6": 0, "d6a3": 0.05, "d6c7": 0, "a8a4": 0.02, "e6g4": 0.02, "a8a3": 0.01, "c6c5": 0.01, "e6d7": 0, "h7h5": 0, "e6h3": 0.01, "b8a6": 0, "d6e5": 0.09, "c6d5": 0.07, "d6d8": 0.01, "b7b5": 0.01, "b7b6": 0, "d6b4": 0.05, "a8a2": 0.01, "d6d7": 0, "a8a7": 0, "d6c5": 0.02, "b8d7": 0.01, "e6d5": 0.09 }, "confidence": 0.22 } }, "usage": { "input_tokens": 1810, "output_tokens": 450, "cost": 7.602e-05 }, "provider": "TypeSafe" }, "elapsed_s": 1.4476814270019531 }, { "stage": "review", "candidate": "d5e6", "request": { "model": "typesafe/jev-1.13", "state": { "before": { "fen": "rn3bnr/1p2p2p/2pqb1p1/3P2k1/4p3/2B5/PPP2PPP/R2QR1K1 w - - 1 16", "side_to_move": "white", "pieces": { "a1": "white rook", "d1": "white queen", "e1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "c3": "white bishop", "e4": "black pawn", "d5": "white pawn", "g5": "black king", "c6": "black pawn", "d6": "black queen", "e6": "black bishop", "g6": "black pawn", "b7": "black pawn", "e7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false }, "candidate": { "uci": "d5e6", "san": "dxe6" }, "after": { "fen": "rn3bnr/1p2p2p/2pqP1p1/6k1/4p3/2B5/PPP2PPP/R2QR1K1 b - - 0 16", "side_to_move": "black", "pieces": { "a1": "white rook", "d1": "white queen", "e1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "c3": "white bishop", "e4": "black pawn", "g5": "black king", "c6": "black pawn", "d6": "black queen", "e6": "white pawn", "g6": "black pawn", "b7": "black pawn", "e7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false } }, "questions": { "loses_material": { "type": "noul", "instructions": "After the candidate White move, can Black force a net material gain soon? Check legal captures, recaptures and attacks on ALL White pieces. A fair exchange is not a loss; merely being attacked is not enough. Assess from White perspective." }, "allows_mate": { "type": "noul", "instructions": "Can Black checkmate White on its very next move in the after position?" }, "quality": { "type": "score", "instructions": "Evaluate the candidate for White after Black responds strongly. Do not reward a check that sacrifices material without compensation.", "criteria": [ "Losing blunder", "Dubious or wasteful", "Playable", "Good", "Winning or excellent" ] }, "black_reply": { "type": "choice", "instructions": "Play Black in the AFTER position. Choose the strongest reply to punish White, especially hanging pieces or checkmate. Every offered move is legal.", "criteria": { "a8a2": "Rxa2", "a8a3": "Ra3", "a8a4": "Ra4", "a8a5": "Ra5", "a8a6": "Ra6", "a8a7": "Ra7", "b7b5": "b5", "b7b6": "b6", "b8a6": "Na6", "b8d7": "Nd7", "c6c5": "c5", "d6a3": "Qa3", "d6b4": "Qb4", "d6c5": "Qc5", "d6c7": "Qc7", "d6d1": "Qxd1", "d6d2": "Qd2", "d6d3": "Qd3", "d6d4": "Qd4", "d6d5": "Qd5", "d6d7": "Qd7", "d6d8": "Qd8", "d6e5": "Qe5", "d6e6": "Qxe6", "d6f4": "Qf4", "d6g3": "Qg3", "d6h2": "Qxh2+", "e4e3": "e3", "f8g7": "Bg7", "f8h6": "Bh6", "g5f4": "Kf4", "g5f5": "Kf5", "g5h4": "Kh4", "g5h6": "Kh6", "g8f6": "Nf6", "g8h6": "Nh6", "h7h5": "h5", "h7h6": "h6" } } } }, "safety": null, "turn": 16, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "loses_material": { "type": "noul", "noul": 0.58 }, "allows_mate": { "type": "noul", "noul": 0.25 }, "quality": { "type": "score", "score": 2.08, "legend": { "0": "Losing blunder", "1": "Dubious or wasteful", "2": "Playable", "3": "Good", "4": "Winning or excellent" }, "probabilities": { "0": 0.14, "1": 0.25, "2": 0.18, "3": 0.26, "4": 0.17 }, "confidence": 0 }, "black_reply": { "type": "choice", "choice": "d6h2", "probabilities": { "a8a5": 0, "d6d1": 0.18000000000000002, "d6c5": 0, "a8a7": 0, "d6e6": 0.29000000000000004, "b8a6": 0, "g5h4": 0, "a8a2": 0.02, "d6d4": 0, "g5f4": 0.01, "d6e5": 0.01, "d6d2": 0, "a8a4": 0, "b7b6": 0, "h7h6": 0, "f8g7": 0, "h7h5": 0, "f8h6": 0, "b7b5": 0, "d6c7": 0, "g8h6": 0, "e4e3": 0, "a8a3": 0.01, "d6a3": 0.02, "c6c5": 0, "a8a6": 0, "b8d7": 0, "d6d8": 0, "g8f6": 0, "d6g3": 0.06999999999999999, "g5f5": 0, "d6f4": 0.03, "d6d5": 0.01, "d6d3": 0.01, "d6d7": 0, "d6b4": 0.01, "g5h6": 0, "d6h2": 0.32 }, "confidence": 0.29 } }, "usage": { "input_tokens": 1810, "output_tokens": 450, "cost": 7.602e-05 }, "provider": "TypeSafe" }, "elapsed_s": 1.494102177908644 }, { "stage": "review", "candidate": "c3h8", "request": { "model": "typesafe/jev-1.13", "state": { "before": { "fen": "rn3bnr/1p2p2p/2pqb1p1/3P2k1/4p3/2B5/PPP2PPP/R2QR1K1 w - - 1 16", "side_to_move": "white", "pieces": { "a1": "white rook", "d1": "white queen", "e1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "c3": "white bishop", "e4": "black pawn", "d5": "white pawn", "g5": "black king", "c6": "black pawn", "d6": "black queen", "e6": "black bishop", "g6": "black pawn", "b7": "black pawn", "e7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": false, "terminal": false }, "candidate": { "uci": "c3h8", "san": "Bxh8" }, "after": { "fen": "rn3bnB/1p2p2p/2pqb1p1/3P2k1/4p3/8/PPP2PPP/R2QR1K1 b - - 0 16", "side_to_move": "black", "pieces": { "a1": "white rook", "d1": "white queen", "e1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "e4": "black pawn", "d5": "white pawn", "g5": "black king", "c6": "black pawn", "d6": "black queen", "e6": "black bishop", "g6": "black pawn", "b7": "black pawn", "e7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "f8": "black bishop", "g8": "black knight", "h8": "white bishop" }, "in_check": false, "terminal": false } }, "questions": { "loses_material": { "type": "noul", "instructions": "After the candidate White move, can Black force a net material gain soon? Check legal captures, recaptures and attacks on ALL White pieces. A fair exchange is not a loss; merely being attacked is not enough. Assess from White perspective." }, "allows_mate": { "type": "noul", "instructions": "Can Black checkmate White on its very next move in the after position?" }, "quality": { "type": "score", "instructions": "Evaluate the candidate for White after Black responds strongly. Do not reward a check that sacrifices material without compensation.", "criteria": [ "Losing blunder", "Dubious or wasteful", "Playable", "Good", "Winning or excellent" ] }, "black_reply": { "type": "choice", "instructions": "Play Black in the AFTER position. Choose the strongest reply to punish White, especially hanging pieces or checkmate. Every offered move is legal.", "criteria": { "a8a2": "Rxa2", "a8a3": "Ra3", "a8a4": "Ra4", "a8a5": "Ra5", "a8a6": "Ra6", "a8a7": "Ra7", "b7b5": "b5", "b7b6": "b6", "b8a6": "Na6", "b8d7": "Nd7", "c6c5": "c5", "c6d5": "cxd5", "d6a3": "Qa3", "d6b4": "Qb4", "d6c5": "Qc5", "d6c7": "Qc7", "d6d5": "Qxd5", "d6d7": "Qd7", "d6d8": "Qd8", "d6e5": "Qe5", "d6f4": "Qf4", "d6g3": "Qg3", "d6h2": "Qxh2+", "e4e3": "e3", "e6c8": "Bc8", "e6d5": "Bxd5", "e6d7": "Bd7", "e6f5": "Bf5", "e6f7": "Bf7", "e6g4": "Bg4", "e6h3": "Bh3", "f8g7": "Bg7", "f8h6": "Bh6", "g5f4": "Kf4", "g5f5": "Kf5", "g5h4": "Kh4", "g5h6": "Kh6", "g8f6": "Nf6", "g8h6": "Nh6", "h7h5": "h5", "h7h6": "h6" } } } }, "safety": null, "turn": 16, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "loses_material": { "type": "noul", "noul": 0.52 }, "allows_mate": { "type": "noul", "noul": 0.28 }, "quality": { "type": "score", "score": 2.2, "legend": { "0": "Losing blunder", "1": "Dubious or wasteful", "2": "Playable", "3": "Good", "4": "Winning or excellent" }, "probabilities": { "0": 0.14, "1": 0.21, "2": 0.16, "3": 0.28, "4": 0.21 }, "confidence": 0 }, "black_reply": { "type": "choice", "choice": "d6h2", "probabilities": { "e6f7": 0.01, "e6d5": 0.1, "d6g3": 0.07, "b8a6": 0, "d6a3": 0.04, "e6f5": 0, "d6d7": 0.01, "e6h3": 0.03, "c6c5": 0, "g5f5": 0, "d6c7": 0, "c6d5": 0.06, "a8a5": 0, "d6d5": 0.16, "a8a7": 0, "a8a2": 0.02, "f8h6": 0.02, "e6g4": 0.01, "b7b5": 0, "e6c8": 0.01, "g8f6": 0.01, "d6d8": 0.09, "b7b6": 0, "g5f4": 0.01, "f8g7": 0.01, "d6c5": 0, "e6d7": 0, "a8a6": 0, "g8h6": 0.02, "d6e5": 0.01, "d6f4": 0.02, "b8d7": 0.01, "d6h2": 0.2, "d6b4": 0.01, "e4e3": 0.01, "g5h6": 0.02, "h7h5": 0, "g5h4": 0.01, "a8a4": 0.01, "a8a3": 0.01, "h7h6": 0.01 }, "confidence": 0.17 } }, "usage": { "input_tokens": 1856, "output_tokens": 480, "cost": 7.7952e-05 }, "provider": "TypeSafe" }, "elapsed_s": 2.0191186239244416 }, { "stage": "selection", "candidate": null, "request": { "model": "typesafe/jev-1.13", "state": { "position": { "fen": "rn3bnr/1p2p2p/2pqb1p1/3P2k1/4p3/2B5/PPP2PPP/R2QR1K1 w - - 1 16", "board": "8 r n . . . b n r\n7 . p . . p . . p\n6 . . p q b . p .\n5 . . . P . . k .\n4 . . . . p . . .\n3 . . B . . . . .\n2 P P P . . P P P\n1 R . . Q R . K .\n a b c d e f g h", "legend": "Uppercase = White, lowercase = Black. P pawn, N knight, B bishop, R rook, Q queen, K king; . empty.", "you_play": "White", "in_check": false, "history_uci": [ "g1f3", "a7a5", "b1c3", "f7f5", "d2d4", "e8f7", "e2e3", "c7c6", "f1c4", "d7d5", "e1g1", "d5c4", "f3e5", "f7f6", "e5c4", "c8e6", "c3d5", "d8d5", "c4a5", "d5a5", "c1d2", "a5d8", "f1e1", "d8d6", "d2c3", "g7g6", "e3e4", "f5e4", "d4d5", "f6g5" ], "history_san": [ "Nf3", "a5", "Nc3", "f5", "d4", "Kf7", "e3", "c6", "Bc4+", "d5", "O-O", "dxc4", "Ne5+", "Kf6", "Nxc4", "Be6", "Nd5+", "Qxd5", "Nxa5", "Qxa5", "Bd2", "Qd8", "Re1", "Qd6", "Bc3", "g6", "e4", "fxe4", "d5+", "Kg5" ], "pieces": { "white": { "a1": "rook", "d1": "queen", "e1": "rook", "g1": "king", "a2": "pawn", "b2": "pawn", "c2": "pawn", "f2": "pawn", "g2": "pawn", "h2": "pawn", "c3": "bishop", "d5": "pawn" }, "black": { "e4": "pawn", "g5": "king", "c6": "pawn", "d6": "queen", "e6": "bishop", "g6": "pawn", "b7": "pawn", "e7": "pawn", "h7": "pawn", "a8": "rook", "b8": "knight", "f8": "bishop", "g8": "knight", "h8": "rook" } } }, "reviews": [ { "uci": "e1e4", "proposal_probability": 0.19, "loss_probability": 0.51, "mate_probability": 0.18, "quality": 2.25, "black_reply": "d6h2", "after_model_reply": { "fen": "rn3bnr/1p2p2p/2p1b1p1/3P2k1/4R3/2B5/PPP2PPq/R2Q2K1 w - - 0 17", "side_to_move": "white", "pieces": { "a1": "white rook", "d1": "white queen", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "black queen", "c3": "white bishop", "e4": "white rook", "d5": "white pawn", "g5": "black king", "c6": "black pawn", "e6": "black bishop", "g6": "black pawn", "b7": "black pawn", "e7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": true, "terminal": false } }, { "uci": "d5e6", "proposal_probability": 0.15, "loss_probability": 0.58, "mate_probability": 0.25, "quality": 2.08, "black_reply": "d6h2", "after_model_reply": { "fen": "rn3bnr/1p2p2p/2p1P1p1/6k1/4p3/2B5/PPP2PPq/R2QR1K1 w - - 0 17", "side_to_move": "white", "pieces": { "a1": "white rook", "d1": "white queen", "e1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "black queen", "c3": "white bishop", "e4": "black pawn", "g5": "black king", "c6": "black pawn", "e6": "white pawn", "g6": "black pawn", "b7": "black pawn", "e7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "f8": "black bishop", "g8": "black knight", "h8": "black rook" }, "in_check": true, "terminal": false } }, { "uci": "c3h8", "proposal_probability": 0.13, "loss_probability": 0.52, "mate_probability": 0.28, "quality": 2.2, "black_reply": "d6h2", "after_model_reply": { "fen": "rn3bnB/1p2p2p/2p1b1p1/3P2k1/4p3/8/PPP2PPq/R2QR1K1 w - - 0 17", "side_to_move": "white", "pieces": { "a1": "white rook", "d1": "white queen", "e1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "black queen", "e4": "black pawn", "d5": "white pawn", "g5": "black king", "c6": "black pawn", "e6": "black bishop", "g6": "black pawn", "b7": "black pawn", "e7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "f8": "black bishop", "g8": "black knight", "h8": "white bishop" }, "in_check": true, "terminal": false } } ], "warning": "Reviews and Black replies are fallible predictions of the same Jev model, not verified engine evaluations." }, "questions": { "move": { "type": "choice", "instructions": "Choose the best White move from the reviewed candidates. Independently check each hypothetical Black reply, captures and recaptures. Prefer avoiding material loss, then useful progress and king safety. Reviews may be wrong. A high proposal probability does not prove a good move.", "criteria": { "e1e4": "rook e1 to e4; captures pawn; SAN Rxe4", "d5e6": "pawn d5 to e6; captures bishop; SAN dxe6", "c3h8": "bishop c3 to h8; captures rook; SAN Bxh8" } } } }, "safety": null, "turn": 16, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "move": { "type": "choice", "choice": "c3h8", "probabilities": { "e1e4": 0.3, "c3h8": 0.43, "d5e6": 0.27 }, "confidence": 0.14 } }, "usage": { "input_tokens": 2512, "output_tokens": 50, "cost": 0.000105504 }, "provider": "TypeSafe" }, "elapsed_s": 1.7604802089044824 }, { "stage": "proposal", "candidate": null, "request": { "model": "typesafe/jev-1.13", "state": { "fen": "rn3bnB/1p2p2p/3qb1p1/3p2k1/4p3/8/PPP2PPP/R2QR1K1 w - - 0 17", "board": "8 r n . . . b n B\n7 . p . . p . . p\n6 . . . q b . p .\n5 . . . p . . k .\n4 . . . . p . . .\n3 . . . . . . . .\n2 P P P . . P P P\n1 R . . Q R . K .\n a b c d e f g h", "legend": "Uppercase = White, lowercase = Black. P pawn, N knight, B bishop, R rook, Q queen, K king; . empty.", "you_play": "White", "in_check": false, "history_uci": [ "g1f3", "a7a5", "b1c3", "f7f5", "d2d4", "e8f7", "e2e3", "c7c6", "f1c4", "d7d5", "e1g1", "d5c4", "f3e5", "f7f6", "e5c4", "c8e6", "c3d5", "d8d5", "c4a5", "d5a5", "c1d2", "a5d8", "f1e1", "d8d6", "d2c3", "g7g6", "e3e4", "f5e4", "d4d5", "f6g5", "c3h8", "c6d5" ], "history_san": [ "Nf3", "a5", "Nc3", "f5", "d4", "Kf7", "e3", "c6", "Bc4+", "d5", "O-O", "dxc4", "Ne5+", "Kf6", "Nxc4", "Be6", "Nd5+", "Qxd5", "Nxa5", "Qxa5", "Bd2", "Qd8", "Re1", "Qd6", "Bc3", "g6", "e4", "fxe4", "d5+", "Kg5", "Bxh8", "cxd5" ], "pieces": { "white": { "a1": "rook", "d1": "queen", "e1": "rook", "g1": "king", "a2": "pawn", "b2": "pawn", "c2": "pawn", "f2": "pawn", "g2": "pawn", "h2": "pawn", "h8": "bishop" }, "black": { "e4": "pawn", "d5": "pawn", "g5": "king", "d6": "queen", "e6": "bishop", "g6": "pawn", "b7": "pawn", "e7": "pawn", "h7": "pawn", "a8": "rook", "b8": "knight", "f8": "bishop", "g8": "knight" } } }, "questions": { "move": { "type": "choice", "instructions": "Choose one legal White move. You alone evaluate the moves; their list is unranked. Use the explicit piece locations to check the destination and any lines opened by moving. First consider whether Black can capture your queen, rook or minor pieces after the move. Count both sides of an exchange: pawn=1, knight/bishop=3, rook=5, queen=9. Prefer keeping material unless you can establish a concrete profitable continuation. Giving check is NOT compensation for losing a piece. When no tactic works, develop or improve a safe piece. Protect your king and aim for checkmate. Read the history to avoid purposeless repeats when ahead; a draw can be useful when losing. Return one offered UCI move.", "criteria": { "a1b1": "rook a1 to b1; SAN Rb1", "a1c1": "rook a1 to c1; SAN Rc1", "a2a3": "pawn a2 to a3; SAN a3", "a2a4": "pawn a2 to a4; SAN a4", "b2b3": "pawn b2 to b3; SAN b3", "b2b4": "pawn b2 to b4; SAN b4", "c2c3": "pawn c2 to c3; SAN c3", "c2c4": "pawn c2 to c4; SAN c4", "d1b1": "queen d1 to b1; SAN Qb1", "d1c1": "queen d1 to c1; SAN Qc1+", "d1d2": "queen d1 to d2; SAN Qd2+", "d1d3": "queen d1 to d3; SAN Qd3", "d1d4": "queen d1 to d4; SAN Qd4", "d1d5": "queen d1 to d5; captures pawn; SAN Qxd5+", "d1e2": "queen d1 to e2; SAN Qe2", "d1f3": "queen d1 to f3; SAN Qf3", "d1g4": "queen d1 to g4; SAN Qg4+", "d1h5": "queen d1 to h5; SAN Qh5+", "e1e2": "rook e1 to e2; SAN Re2", "e1e3": "rook e1 to e3; SAN Re3", "e1e4": "rook e1 to e4; captures pawn; SAN Rxe4", "e1f1": "rook e1 to f1; SAN Rf1", "f2f3": "pawn f2 to f3; SAN f3", "f2f4": "pawn f2 to f4; SAN f4+", "g1f1": "king g1 to f1; SAN Kf1", "g1h1": "king g1 to h1; SAN Kh1", "g2g3": "pawn g2 to g3; SAN g3", "g2g4": "pawn g2 to g4; SAN g4", "h2h3": "pawn h2 to h3; SAN h3", "h2h4": "pawn h2 to h4; SAN h4+", "h8c3": "bishop h8 to c3; SAN Bc3", "h8d4": "bishop h8 to d4; SAN Bd4", "h8e5": "bishop h8 to e5; SAN Be5", "h8f6": "bishop h8 to f6; SAN Bf6+", "h8g7": "bishop h8 to g7; SAN Bg7" } } } }, "safety": null, "turn": 17, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "move": { "type": "choice", "choice": "d1d5", "probabilities": { "f2f4": 0.03, "d1d2": 0.03, "h8c3": 0.02, "a2a4": 0.01, "d1e2": 0.01, "d1d4": 0.01, "g2g4": 0.01, "e1f1": 0.01, "g1h1": 0.01, "d1c1": 0.02, "e1e2": 0, "h2h3": 0, "d1d5": 0.22, "g1f1": 0.01, "b2b3": 0.01, "d1h5": 0.09, "h8f6": 0.11, "h8g7": 0.03, "d1f3": 0.01, "h8d4": 0.01, "d1b1": 0, "h2h4": 0.02, "b2b4": 0, "d1d3": 0.01, "a1b1": 0.01, "e1e3": 0.01, "c2c3": 0.01, "d1g4": 0.07, "f2f3": 0, "a1c1": 0.01, "e1e4": 0.18, "a2a3": 0.01, "c2c4": 0, "h8e5": 0.01, "g2g3": 0.01 }, "confidence": 0.2 } }, "usage": { "input_tokens": 2158, "output_tokens": 370, "cost": 9.0636e-05 }, "provider": "TypeSafe" }, "elapsed_s": 1.4745964790927246 }, { "stage": "review", "candidate": "d1d5", "request": { "model": "typesafe/jev-1.13", "state": { "before": { "fen": "rn3bnB/1p2p2p/3qb1p1/3p2k1/4p3/8/PPP2PPP/R2QR1K1 w - - 0 17", "side_to_move": "white", "pieces": { "a1": "white rook", "d1": "white queen", "e1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "e4": "black pawn", "d5": "black pawn", "g5": "black king", "d6": "black queen", "e6": "black bishop", "g6": "black pawn", "b7": "black pawn", "e7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "f8": "black bishop", "g8": "black knight", "h8": "white bishop" }, "in_check": false, "terminal": false }, "candidate": { "uci": "d1d5", "san": "Qxd5+" }, "after": { "fen": "rn3bnB/1p2p2p/3qb1p1/3Q2k1/4p3/8/PPP2PPP/R3R1K1 b - - 0 17", "side_to_move": "black", "pieces": { "a1": "white rook", "e1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "e4": "black pawn", "d5": "white queen", "g5": "black king", "d6": "black queen", "e6": "black bishop", "g6": "black pawn", "b7": "black pawn", "e7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "f8": "black bishop", "g8": "black knight", "h8": "white bishop" }, "in_check": true, "terminal": false } }, "questions": { "loses_material": { "type": "noul", "instructions": "After the candidate White move, can Black force a net material gain soon? Check legal captures, recaptures and attacks on ALL White pieces. A fair exchange is not a loss; merely being attacked is not enough. Assess from White perspective." }, "allows_mate": { "type": "noul", "instructions": "Can Black checkmate White on its very next move in the after position?" }, "quality": { "type": "score", "instructions": "Evaluate the candidate for White after Black responds strongly. Do not reward a check that sacrifices material without compensation.", "criteria": [ "Losing blunder", "Dubious or wasteful", "Playable", "Good", "Winning or excellent" ] }, "black_reply": { "type": "choice", "instructions": "Play Black in the AFTER position. Choose the strongest reply to punish White, especially hanging pieces or checkmate. Every offered move is legal.", "criteria": { "d6d5": "Qxd5", "d6e5": "Qe5", "e6d5": "Bxd5", "e6f5": "Bf5", "g5f4": "Kf4", "g5g4": "Kg4", "g5h4": "Kh4", "g5h6": "Kh6" } } } }, "safety": null, "turn": 17, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "loses_material": { "type": "noul", "noul": 0.53 }, "allows_mate": { "type": "noul", "noul": 0.22 }, "quality": { "type": "score", "score": 1.81, "legend": { "0": "Losing blunder", "1": "Dubious or wasteful", "2": "Playable", "3": "Good", "4": "Winning or excellent" }, "probabilities": { "0": 0.22, "1": 0.26, "2": 0.15, "3": 0.21, "4": 0.16 }, "confidence": 0 }, "black_reply": { "type": "choice", "choice": "d6d5", "probabilities": { "g5h6": 0.01, "d6e5": 0.06, "d6d5": 0.62, "g5f4": 0.05, "e6d5": 0.19999999999999998, "g5h4": 0.02, "e6f5": 0.02, "g5g4": 0.02 }, "confidence": 0.57 } }, "usage": { "input_tokens": 1273, "output_tokens": 150, "cost": 5.3466e-05 }, "provider": "TypeSafe" }, "elapsed_s": 1.4159135179361328 }, { "stage": "review", "candidate": "e1e4", "request": { "model": "typesafe/jev-1.13", "state": { "before": { "fen": "rn3bnB/1p2p2p/3qb1p1/3p2k1/4p3/8/PPP2PPP/R2QR1K1 w - - 0 17", "side_to_move": "white", "pieces": { "a1": "white rook", "d1": "white queen", "e1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "e4": "black pawn", "d5": "black pawn", "g5": "black king", "d6": "black queen", "e6": "black bishop", "g6": "black pawn", "b7": "black pawn", "e7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "f8": "black bishop", "g8": "black knight", "h8": "white bishop" }, "in_check": false, "terminal": false }, "candidate": { "uci": "e1e4", "san": "Rxe4" }, "after": { "fen": "rn3bnB/1p2p2p/3qb1p1/3p2k1/4R3/8/PPP2PPP/R2Q2K1 b - - 0 17", "side_to_move": "black", "pieces": { "a1": "white rook", "d1": "white queen", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "e4": "white rook", "d5": "black pawn", "g5": "black king", "d6": "black queen", "e6": "black bishop", "g6": "black pawn", "b7": "black pawn", "e7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "f8": "black bishop", "g8": "black knight", "h8": "white bishop" }, "in_check": false, "terminal": false } }, "questions": { "loses_material": { "type": "noul", "instructions": "After the candidate White move, can Black force a net material gain soon? Check legal captures, recaptures and attacks on ALL White pieces. A fair exchange is not a loss; merely being attacked is not enough. Assess from White perspective." }, "allows_mate": { "type": "noul", "instructions": "Can Black checkmate White on its very next move in the after position?" }, "quality": { "type": "score", "instructions": "Evaluate the candidate for White after Black responds strongly. Do not reward a check that sacrifices material without compensation.", "criteria": [ "Losing blunder", "Dubious or wasteful", "Playable", "Good", "Winning or excellent" ] }, "black_reply": { "type": "choice", "instructions": "Play Black in the AFTER position. Choose the strongest reply to punish White, especially hanging pieces or checkmate. Every offered move is legal.", "criteria": { "a8a2": "Rxa2", "a8a3": "Ra3", "a8a4": "Ra4", "a8a5": "Ra5", "a8a6": "Ra6", "a8a7": "Ra7", "b7b5": "b5", "b7b6": "b6", "b8a6": "Na6", "b8c6": "Nc6", "b8d7": "Nd7", "d5d4": "d4", "d5e4": "dxe4", "d6a3": "Qa3", "d6a6": "Qa6", "d6b4": "Qb4", "d6b6": "Qb6", "d6c5": "Qc5", "d6c6": "Qc6", "d6c7": "Qc7", "d6d7": "Qd7", "d6d8": "Qd8", "d6e5": "Qe5", "d6f4": "Qf4", "d6g3": "Qg3", "d6h2": "Qxh2+", "e6c8": "Bc8", "e6d7": "Bd7", "e6f5": "Bf5", "e6f7": "Bf7", "e6g4": "Bg4", "e6h3": "Bh3", "f8g7": "Bg7", "f8h6": "Bh6", "g5f5": "Kf5", "g5h6": "Kh6", "g8f6": "Nf6", "g8h6": "Nh6", "h7h5": "h5", "h7h6": "h6" } } } }, "safety": null, "turn": 17, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "loses_material": { "type": "noul", "noul": 0.49 }, "allows_mate": { "type": "noul", "noul": 0.17 }, "quality": { "type": "score", "score": 2.17, "legend": { "0": "Losing blunder", "1": "Dubious or wasteful", "2": "Playable", "3": "Good", "4": "Winning or excellent" }, "probabilities": { "0": 0.11, "1": 0.22, "2": 0.2, "3": 0.34, "4": 0.13 }, "confidence": 0.09 }, "black_reply": { "type": "choice", "choice": "d6h2", "probabilities": { "a8a6": 0, "d5d4": 0.01, "e6g4": 0.01, "d6d8": 0, "a8a4": 0.01, "d6h2": 0.39, "d6c7": 0, "b7b6": 0, "d6e5": 0.04, "h7h5": 0, "d6f4": 0.03, "b8a6": 0, "d6c5": 0.01, "b7b5": 0, "e6f5": 0, "e6c8": 0, "d6b6": 0, "d5e4": 0.38, "h7h6": 0, "f8g7": 0, "e6f7": 0, "b8c6": 0.01, "d6g3": 0.05, "d6b4": 0.01, "g5f5": 0, "e6h3": 0, "d6a6": 0, "e6d7": 0, "a8a5": 0, "a8a2": 0.02, "d6d7": 0, "d6a3": 0.02, "f8h6": 0, "b8d7": 0.01, "a8a7": 0, "d6c6": 0, "g8f6": 0, "g5h6": 0, "a8a3": 0, "g8h6": 0 }, "confidence": 0.37 } }, "usage": { "input_tokens": 1793, "output_tokens": 470, "cost": 7.5306e-05 }, "provider": "TypeSafe" }, "elapsed_s": 2.106209193007089 }, { "stage": "review", "candidate": "h8f6", "request": { "model": "typesafe/jev-1.13", "state": { "before": { "fen": "rn3bnB/1p2p2p/3qb1p1/3p2k1/4p3/8/PPP2PPP/R2QR1K1 w - - 0 17", "side_to_move": "white", "pieces": { "a1": "white rook", "d1": "white queen", "e1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "e4": "black pawn", "d5": "black pawn", "g5": "black king", "d6": "black queen", "e6": "black bishop", "g6": "black pawn", "b7": "black pawn", "e7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "f8": "black bishop", "g8": "black knight", "h8": "white bishop" }, "in_check": false, "terminal": false }, "candidate": { "uci": "h8f6", "san": "Bf6+" }, "after": { "fen": "rn3bn1/1p2p2p/3qbBp1/3p2k1/4p3/8/PPP2PPP/R2QR1K1 b - - 1 17", "side_to_move": "black", "pieces": { "a1": "white rook", "d1": "white queen", "e1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "e4": "black pawn", "d5": "black pawn", "g5": "black king", "d6": "black queen", "e6": "black bishop", "f6": "white bishop", "g6": "black pawn", "b7": "black pawn", "e7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "f8": "black bishop", "g8": "black knight" }, "in_check": true, "terminal": false } }, "questions": { "loses_material": { "type": "noul", "instructions": "After the candidate White move, can Black force a net material gain soon? Check legal captures, recaptures and attacks on ALL White pieces. A fair exchange is not a loss; merely being attacked is not enough. Assess from White perspective." }, "allows_mate": { "type": "noul", "instructions": "Can Black checkmate White on its very next move in the after position?" }, "quality": { "type": "score", "instructions": "Evaluate the candidate for White after Black responds strongly. Do not reward a check that sacrifices material without compensation.", "criteria": [ "Losing blunder", "Dubious or wasteful", "Playable", "Good", "Winning or excellent" ] }, "black_reply": { "type": "choice", "instructions": "Play Black in the AFTER position. Choose the strongest reply to punish White, especially hanging pieces or checkmate. Every offered move is legal.", "criteria": { "e7f6": "exf6", "g5f4": "Kf4", "g5f5": "Kf5", "g5f6": "Kxf6", "g5h6": "Kh6", "g8f6": "Nxf6" } } } }, "safety": null, "turn": 17, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "loses_material": { "type": "noul", "noul": 0.49 }, "allows_mate": { "type": "noul", "noul": 0.26 }, "quality": { "type": "score", "score": 1.76, "legend": { "0": "Losing blunder", "1": "Dubious or wasteful", "2": "Playable", "3": "Good", "4": "Winning or excellent" }, "probabilities": { "0": 0.21, "1": 0.28, "2": 0.18, "3": 0.21, "4": 0.12 }, "confidence": 0.03 }, "black_reply": { "type": "choice", "choice": "g5f6", "probabilities": { "g5f6": 0.34, "g8f6": 0.24, "e7f6": 0.26, "g5h6": 0.04, "g5f4": 0.08, "g5f5": 0.04 }, "confidence": 0.2 } }, "usage": { "input_tokens": 1250, "output_tokens": 130, "cost": 5.25e-05 }, "provider": "TypeSafe" }, "elapsed_s": 1.5460466600488871 }, { "stage": "selection", "candidate": null, "request": { "model": "typesafe/jev-1.13", "state": { "position": { "fen": "rn3bnB/1p2p2p/3qb1p1/3p2k1/4p3/8/PPP2PPP/R2QR1K1 w - - 0 17", "board": "8 r n . . . b n B\n7 . p . . p . . p\n6 . . . q b . p .\n5 . . . p . . k .\n4 . . . . p . . .\n3 . . . . . . . .\n2 P P P . . P P P\n1 R . . Q R . K .\n a b c d e f g h", "legend": "Uppercase = White, lowercase = Black. P pawn, N knight, B bishop, R rook, Q queen, K king; . empty.", "you_play": "White", "in_check": false, "history_uci": [ "g1f3", "a7a5", "b1c3", "f7f5", "d2d4", "e8f7", "e2e3", "c7c6", "f1c4", "d7d5", "e1g1", "d5c4", "f3e5", "f7f6", "e5c4", "c8e6", "c3d5", "d8d5", "c4a5", "d5a5", "c1d2", "a5d8", "f1e1", "d8d6", "d2c3", "g7g6", "e3e4", "f5e4", "d4d5", "f6g5", "c3h8", "c6d5" ], "history_san": [ "Nf3", "a5", "Nc3", "f5", "d4", "Kf7", "e3", "c6", "Bc4+", "d5", "O-O", "dxc4", "Ne5+", "Kf6", "Nxc4", "Be6", "Nd5+", "Qxd5", "Nxa5", "Qxa5", "Bd2", "Qd8", "Re1", "Qd6", "Bc3", "g6", "e4", "fxe4", "d5+", "Kg5", "Bxh8", "cxd5" ], "pieces": { "white": { "a1": "rook", "d1": "queen", "e1": "rook", "g1": "king", "a2": "pawn", "b2": "pawn", "c2": "pawn", "f2": "pawn", "g2": "pawn", "h2": "pawn", "h8": "bishop" }, "black": { "e4": "pawn", "d5": "pawn", "g5": "king", "d6": "queen", "e6": "bishop", "g6": "pawn", "b7": "pawn", "e7": "pawn", "h7": "pawn", "a8": "rook", "b8": "knight", "f8": "bishop", "g8": "knight" } } }, "reviews": [ { "uci": "d1d5", "proposal_probability": 0.22, "loss_probability": 0.53, "mate_probability": 0.22, "quality": 1.81, "black_reply": "d6d5", "after_model_reply": { "fen": "rn3bnB/1p2p2p/4b1p1/3q2k1/4p3/8/PPP2PPP/R3R1K1 w - - 0 18", "side_to_move": "white", "pieces": { "a1": "white rook", "e1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "e4": "black pawn", "d5": "black queen", "g5": "black king", "e6": "black bishop", "g6": "black pawn", "b7": "black pawn", "e7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "f8": "black bishop", "g8": "black knight", "h8": "white bishop" }, "in_check": false, "terminal": false } }, { "uci": "e1e4", "proposal_probability": 0.18, "loss_probability": 0.49, "mate_probability": 0.17, "quality": 2.17, "black_reply": "d6h2", "after_model_reply": { "fen": "rn3bnB/1p2p2p/4b1p1/3p2k1/4R3/8/PPP2PPq/R2Q2K1 w - - 0 18", "side_to_move": "white", "pieces": { "a1": "white rook", "d1": "white queen", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "black queen", "e4": "white rook", "d5": "black pawn", "g5": "black king", "e6": "black bishop", "g6": "black pawn", "b7": "black pawn", "e7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "f8": "black bishop", "g8": "black knight", "h8": "white bishop" }, "in_check": true, "terminal": false } }, { "uci": "h8f6", "proposal_probability": 0.11, "loss_probability": 0.49, "mate_probability": 0.26, "quality": 1.76, "black_reply": "g5f6", "after_model_reply": { "fen": "rn3bn1/1p2p2p/3qbkp1/3p4/4p3/8/PPP2PPP/R2QR1K1 w - - 0 18", "side_to_move": "white", "pieces": { "a1": "white rook", "d1": "white queen", "e1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "e4": "black pawn", "d5": "black pawn", "d6": "black queen", "e6": "black bishop", "f6": "black king", "g6": "black pawn", "b7": "black pawn", "e7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "f8": "black bishop", "g8": "black knight" }, "in_check": false, "terminal": false } } ], "warning": "Reviews and Black replies are fallible predictions of the same Jev model, not verified engine evaluations." }, "questions": { "move": { "type": "choice", "instructions": "Choose the best White move from the reviewed candidates. Independently check each hypothetical Black reply, captures and recaptures. Prefer avoiding material loss, then useful progress and king safety. Reviews may be wrong. A high proposal probability does not prove a good move.", "criteria": { "d1d5": "queen d1 to d5; captures pawn; SAN Qxd5+", "e1e4": "rook e1 to e4; captures pawn; SAN Rxe4", "h8f6": "bishop h8 to f6; SAN Bf6+" } } } }, "safety": null, "turn": 17, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "move": { "type": "choice", "choice": "e1e4", "probabilities": { "e1e4": 0.41, "d1d5": 0.29, "h8f6": 0.3 }, "confidence": 0.11 } }, "usage": { "input_tokens": 2450, "output_tokens": 50, "cost": 0.0001029 }, "provider": "TypeSafe" }, "elapsed_s": 1.4193979050032794 }, { "stage": "proposal", "candidate": null, "request": { "model": "typesafe/jev-1.13", "state": { "fen": "rn3bnB/1p1bp2p/3q2p1/3p2k1/4R3/8/PPP2PPP/R2Q2K1 w - - 1 18", "board": "8 r n . . . b n B\n7 . p . b p . . p\n6 . . . q . . p .\n5 . . . p . . k .\n4 . . . . R . . .\n3 . . . . . . . .\n2 P P P . . P P P\n1 R . . Q . . K .\n a b c d e f g h", "legend": "Uppercase = White, lowercase = Black. P pawn, N knight, B bishop, R rook, Q queen, K king; . empty.", "you_play": "White", "in_check": false, "history_uci": [ "g1f3", "a7a5", "b1c3", "f7f5", "d2d4", "e8f7", "e2e3", "c7c6", "f1c4", "d7d5", "e1g1", "d5c4", "f3e5", "f7f6", "e5c4", "c8e6", "c3d5", "d8d5", "c4a5", "d5a5", "c1d2", "a5d8", "f1e1", "d8d6", "d2c3", "g7g6", "e3e4", "f5e4", "d4d5", "f6g5", "c3h8", "c6d5", "e1e4", "e6d7" ], "history_san": [ "Nf3", "a5", "Nc3", "f5", "d4", "Kf7", "e3", "c6", "Bc4+", "d5", "O-O", "dxc4", "Ne5+", "Kf6", "Nxc4", "Be6", "Nd5+", "Qxd5", "Nxa5", "Qxa5", "Bd2", "Qd8", "Re1", "Qd6", "Bc3", "g6", "e4", "fxe4", "d5+", "Kg5", "Bxh8", "cxd5", "Rxe4", "Bd7" ], "pieces": { "white": { "a1": "rook", "d1": "queen", "g1": "king", "a2": "pawn", "b2": "pawn", "c2": "pawn", "f2": "pawn", "g2": "pawn", "h2": "pawn", "e4": "rook", "h8": "bishop" }, "black": { "d5": "pawn", "g5": "king", "d6": "queen", "g6": "pawn", "b7": "pawn", "d7": "bishop", "e7": "pawn", "h7": "pawn", "a8": "rook", "b8": "knight", "f8": "bishop", "g8": "knight" } } }, "questions": { "move": { "type": "choice", "instructions": "Choose one legal White move. You alone evaluate the moves; their list is unranked. Use the explicit piece locations to check the destination and any lines opened by moving. First consider whether Black can capture your queen, rook or minor pieces after the move. Count both sides of an exchange: pawn=1, knight/bishop=3, rook=5, queen=9. Prefer keeping material unless you can establish a concrete profitable continuation. Giving check is NOT compensation for losing a piece. When no tactic works, develop or improve a safe piece. Protect your king and aim for checkmate. Read the history to avoid purposeless repeats when ahead; a draw can be useful when losing. Return one offered UCI move.", "criteria": { "a1b1": "rook a1 to b1; SAN Rb1", "a1c1": "rook a1 to c1; SAN Rc1", "a2a3": "pawn a2 to a3; SAN a3", "a2a4": "pawn a2 to a4; SAN a4", "b2b3": "pawn b2 to b3; SAN b3", "b2b4": "pawn b2 to b4; SAN b4", "c2c3": "pawn c2 to c3; SAN c3", "c2c4": "pawn c2 to c4; SAN c4", "d1b1": "queen d1 to b1; SAN Qb1", "d1c1": "queen d1 to c1; SAN Qc1+", "d1d2": "queen d1 to d2; SAN Qd2+", "d1d3": "queen d1 to d3; SAN Qd3", "d1d4": "queen d1 to d4; SAN Qd4", "d1d5": "queen d1 to d5; captures pawn; SAN Qxd5+", "d1e1": "queen d1 to e1; SAN Qe1", "d1e2": "queen d1 to e2; SAN Qe2", "d1f1": "queen d1 to f1; SAN Qf1", "d1f3": "queen d1 to f3; SAN Qf3", "d1g4": "queen d1 to g4; SAN Qg4+", "d1h5": "queen d1 to h5; SAN Qh5+", "e4a4": "rook e4 to a4; SAN Ra4", "e4b4": "rook e4 to b4; SAN Rb4", "e4c4": "rook e4 to c4; SAN Rc4", "e4d4": "rook e4 to d4; SAN Rd4", "e4e1": "rook e4 to e1; SAN Re1", "e4e2": "rook e4 to e2; SAN Re2", "e4e3": "rook e4 to e3; SAN Re3", "e4e5": "rook e4 to e5; SAN Re5+", "e4e6": "rook e4 to e6; SAN Re6", "e4e7": "rook e4 to e7; captures pawn; SAN Rxe7", "e4f4": "rook e4 to f4; SAN Rf4", "e4g4": "rook e4 to g4; SAN Rg4+", "e4h4": "rook e4 to h4; SAN Rh4", "f2f3": "pawn f2 to f3; SAN f3", "f2f4": "pawn f2 to f4; SAN f4+", "g1f1": "king g1 to f1; SAN Kf1", "g1h1": "king g1 to h1; SAN Kh1", "g2g3": "pawn g2 to g3; SAN g3", "g2g4": "pawn g2 to g4; SAN g4", "h2h3": "pawn h2 to h3; SAN h3", "h2h4": "pawn h2 to h4; SAN h4+", "h8c3": "bishop h8 to c3; SAN Bc3", "h8d4": "bishop h8 to d4; SAN Bd4", "h8e5": "bishop h8 to e5; SAN Be5", "h8f6": "bishop h8 to f6; SAN Bf6+", "h8g7": "bishop h8 to g7; SAN Bg7" } } } }, "safety": null, "turn": 18, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "move": { "type": "choice", "choice": "d1d5", "probabilities": { "e4e3": 0.01, "d1g4": 0.04, "g1h1": 0.01, "d1f3": 0.01, "e4g4": 0.07, "a2a3": 0.01, "b2b4": 0, "e4f4": 0.01, "c2c4": 0, "e4e6": 0.01, "e4e5": 0.03, "a1c1": 0.01, "d1e2": 0, "f2f3": 0, "h8d4": 0.02, "d1d2": 0.03, "d1f1": 0.01, "d1b1": 0, "e4e1": 0.01, "g2g3": 0.01, "g2g4": 0, "d1d4": 0.01, "g1f1": 0.01, "h2h3": 0, "d1d3": 0.01, "a2a4": 0, "d1h5": 0.04, "h8e5": 0.02, "b2b3": 0.01, "h8g7": 0.02, "a1b1": 0.01, "f2f4": 0.01, "h2h4": 0.02, "e4c4": 0.01, "d1e1": 0.01, "d1d5": 0.23, "h8c3": 0.01, "d1c1": 0.02, "e4e2": 0, "e4b4": 0.01, "c2c3": 0.01, "e4h4": 0.01, "e4d4": 0.01, "e4a4": 0.01, "e4e7": 0.09999999999999999, "h8f6": 0.12 }, "confidence": 0.2 } }, "usage": { "input_tokens": 2453, "output_tokens": 480, "cost": 0.000103026 }, "provider": "TypeSafe" }, "elapsed_s": 1.9458462519105524 }, { "stage": "review", "candidate": "d1d5", "request": { "model": "typesafe/jev-1.13", "state": { "before": { "fen": "rn3bnB/1p1bp2p/3q2p1/3p2k1/4R3/8/PPP2PPP/R2Q2K1 w - - 1 18", "side_to_move": "white", "pieces": { "a1": "white rook", "d1": "white queen", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "e4": "white rook", "d5": "black pawn", "g5": "black king", "d6": "black queen", "g6": "black pawn", "b7": "black pawn", "d7": "black bishop", "e7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "f8": "black bishop", "g8": "black knight", "h8": "white bishop" }, "in_check": false, "terminal": false }, "candidate": { "uci": "d1d5", "san": "Qxd5+" }, "after": { "fen": "rn3bnB/1p1bp2p/3q2p1/3Q2k1/4R3/8/PPP2PPP/R5K1 b - - 0 18", "side_to_move": "black", "pieces": { "a1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "e4": "white rook", "d5": "white queen", "g5": "black king", "d6": "black queen", "g6": "black pawn", "b7": "black pawn", "d7": "black bishop", "e7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "f8": "black bishop", "g8": "black knight", "h8": "white bishop" }, "in_check": true, "terminal": false } }, "questions": { "loses_material": { "type": "noul", "instructions": "After the candidate White move, can Black force a net material gain soon? Check legal captures, recaptures and attacks on ALL White pieces. A fair exchange is not a loss; merely being attacked is not enough. Assess from White perspective." }, "allows_mate": { "type": "noul", "instructions": "Can Black checkmate White on its very next move in the after position?" }, "quality": { "type": "score", "instructions": "Evaluate the candidate for White after Black responds strongly. Do not reward a check that sacrifices material without compensation.", "criteria": [ "Losing blunder", "Dubious or wasteful", "Playable", "Good", "Winning or excellent" ] }, "black_reply": { "type": "choice", "instructions": "Play Black in the AFTER position. Choose the strongest reply to punish White, especially hanging pieces or checkmate. Every offered move is legal.", "criteria": { "d6d5": "Qxd5", "d6e5": "Qe5", "d7f5": "Bf5", "e7e5": "e5", "g5h6": "Kh6" } } } }, "safety": null, "turn": 18, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "loses_material": { "type": "noul", "noul": 0.51 }, "allows_mate": { "type": "noul", "noul": 0.27 }, "quality": { "type": "score", "score": 1.93, "legend": { "0": "Losing blunder", "1": "Dubious or wasteful", "2": "Playable", "3": "Good", "4": "Winning or excellent" }, "probabilities": { "0": 0.23, "1": 0.22, "2": 0.14, "3": 0.22, "4": 0.19 }, "confidence": 0 }, "black_reply": { "type": "choice", "choice": "d6d5", "probabilities": { "d7f5": 0.05, "d6d5": 0.83, "g5h6": 0.02, "d6e5": 0.09, "e7e5": 0.01 }, "confidence": 0.79 } }, "usage": { "input_tokens": 1201, "output_tokens": 120, "cost": 5.0442e-05 }, "provider": "TypeSafe" }, "elapsed_s": 1.6040710540255532 }, { "stage": "review", "candidate": "h8f6", "request": { "model": "typesafe/jev-1.13", "state": { "before": { "fen": "rn3bnB/1p1bp2p/3q2p1/3p2k1/4R3/8/PPP2PPP/R2Q2K1 w - - 1 18", "side_to_move": "white", "pieces": { "a1": "white rook", "d1": "white queen", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "e4": "white rook", "d5": "black pawn", "g5": "black king", "d6": "black queen", "g6": "black pawn", "b7": "black pawn", "d7": "black bishop", "e7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "f8": "black bishop", "g8": "black knight", "h8": "white bishop" }, "in_check": false, "terminal": false }, "candidate": { "uci": "h8f6", "san": "Bf6+" }, "after": { "fen": "rn3bn1/1p1bp2p/3q1Bp1/3p2k1/4R3/8/PPP2PPP/R2Q2K1 b - - 2 18", "side_to_move": "black", "pieces": { "a1": "white rook", "d1": "white queen", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "e4": "white rook", "d5": "black pawn", "g5": "black king", "d6": "black queen", "f6": "white bishop", "g6": "black pawn", "b7": "black pawn", "d7": "black bishop", "e7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "f8": "black bishop", "g8": "black knight" }, "in_check": true, "terminal": false } }, "questions": { "loses_material": { "type": "noul", "instructions": "After the candidate White move, can Black force a net material gain soon? Check legal captures, recaptures and attacks on ALL White pieces. A fair exchange is not a loss; merely being attacked is not enough. Assess from White perspective." }, "allows_mate": { "type": "noul", "instructions": "Can Black checkmate White on its very next move in the after position?" }, "quality": { "type": "score", "instructions": "Evaluate the candidate for White after Black responds strongly. Do not reward a check that sacrifices material without compensation.", "criteria": [ "Losing blunder", "Dubious or wasteful", "Playable", "Good", "Winning or excellent" ] }, "black_reply": { "type": "choice", "instructions": "Play Black in the AFTER position. Choose the strongest reply to punish White, especially hanging pieces or checkmate. Every offered move is legal.", "criteria": { "d6f6": "Qxf6", "e7f6": "exf6", "g5f5": "Kf5", "g5f6": "Kxf6", "g5h6": "Kh6", "g8f6": "Nxf6" } } } }, "safety": null, "turn": 18, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "loses_material": { "type": "noul", "noul": 0.49 }, "allows_mate": { "type": "noul", "noul": 0.28 }, "quality": { "type": "score", "score": 1.72, "legend": { "0": "Losing blunder", "1": "Dubious or wasteful", "2": "Playable", "3": "Good", "4": "Winning or excellent" }, "probabilities": { "0": 0.23, "1": 0.28, "2": 0.16, "3": 0.2, "4": 0.13 }, "confidence": 0.02 }, "black_reply": { "type": "choice", "choice": "d6f6", "probabilities": { "g5f6": 0.22, "d6f6": 0.47, "g5f5": 0.05, "g8f6": 0.1, "g5h6": 0.04, "e7f6": 0.12 }, "confidence": 0.37 } }, "usage": { "input_tokens": 1231, "output_tokens": 130, "cost": 5.1702e-05 }, "provider": "TypeSafe" }, "elapsed_s": 1.3486257329350337 }, { "stage": "review", "candidate": "e4e7", "request": { "model": "typesafe/jev-1.13", "state": { "before": { "fen": "rn3bnB/1p1bp2p/3q2p1/3p2k1/4R3/8/PPP2PPP/R2Q2K1 w - - 1 18", "side_to_move": "white", "pieces": { "a1": "white rook", "d1": "white queen", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "e4": "white rook", "d5": "black pawn", "g5": "black king", "d6": "black queen", "g6": "black pawn", "b7": "black pawn", "d7": "black bishop", "e7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "f8": "black bishop", "g8": "black knight", "h8": "white bishop" }, "in_check": false, "terminal": false }, "candidate": { "uci": "e4e7", "san": "Rxe7" }, "after": { "fen": "rn3bnB/1p1bR2p/3q2p1/3p2k1/8/8/PPP2PPP/R2Q2K1 b - - 0 18", "side_to_move": "black", "pieces": { "a1": "white rook", "d1": "white queen", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "d5": "black pawn", "g5": "black king", "d6": "black queen", "g6": "black pawn", "b7": "black pawn", "d7": "black bishop", "e7": "white rook", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "f8": "black bishop", "g8": "black knight", "h8": "white bishop" }, "in_check": false, "terminal": false } }, "questions": { "loses_material": { "type": "noul", "instructions": "After the candidate White move, can Black force a net material gain soon? Check legal captures, recaptures and attacks on ALL White pieces. A fair exchange is not a loss; merely being attacked is not enough. Assess from White perspective." }, "allows_mate": { "type": "noul", "instructions": "Can Black checkmate White on its very next move in the after position?" }, "quality": { "type": "score", "instructions": "Evaluate the candidate for White after Black responds strongly. Do not reward a check that sacrifices material without compensation.", "criteria": [ "Losing blunder", "Dubious or wasteful", "Playable", "Good", "Winning or excellent" ] }, "black_reply": { "type": "choice", "instructions": "Play Black in the AFTER position. Choose the strongest reply to punish White, especially hanging pieces or checkmate. Every offered move is legal.", "criteria": { "a8a2": "Rxa2", "a8a3": "Ra3", "a8a4": "Ra4", "a8a5": "Ra5", "a8a6": "Ra6", "a8a7": "Ra7", "b7b5": "b5", "b7b6": "b6", "b8a6": "Na6", "b8c6": "Nc6", "d5d4": "d4", "d6a3": "Qa3", "d6a6": "Qa6", "d6b4": "Qb4", "d6b6": "Qb6", "d6c5": "Qc5", "d6c6": "Qc6", "d6c7": "Qc7", "d6e5": "Qe5", "d6e6": "Qe6", "d6e7": "Qxe7", "d6f4": "Qf4", "d6f6": "Qf6", "d6g3": "Qg3", "d6h2": "Qxh2+", "d7a4": "Ba4", "d7b5": "Bb5", "d7c6": "Bc6", "d7c8": "Bc8", "d7e6": "Be6", "d7e8": "Be8", "d7f5": "Bf5", "d7g4": "Bg4", "d7h3": "Bh3", "f8e7": "Bxe7", "f8g7": "Bg7", "f8h6": "Bh6", "g5f4": "Kf4", "g5f5": "Kf5", "g5h4": "Kh4", "g5h6": "Kh6", "g8e7": "Nxe7", "g8f6": "Nf6", "g8h6": "Nh6", "h7h5": "h5", "h7h6": "h6" } } } }, "safety": null, "turn": 18, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "loses_material": { "type": "noul", "noul": 0.51 }, "allows_mate": { "type": "noul", "noul": 0.18 }, "quality": { "type": "score", "score": 2.22, "legend": { "0": "Losing blunder", "1": "Dubious or wasteful", "2": "Playable", "3": "Good", "4": "Winning or excellent" }, "probabilities": { "0": 0.13, "1": 0.2, "2": 0.18, "3": 0.31, "4": 0.18 }, "confidence": 0.05 }, "black_reply": { "type": "choice", "choice": "d6e7", "probabilities": { "g8h6": 0, "b8a6": 0, "d6f6": 0, "d6c6": 0, "g5f5": 0, "f8h6": 0, "d7g4": 0, "a8a5": 0, "d7b5": 0, "h7h5": 0, "a8a2": 0, "a8a7": 0.01, "d6g3": 0.03, "b7b6": 0, "d7c8": 0, "g8e7": 0.05, "d6e6": 0.01, "d7e6": 0, "g8f6": 0, "d6f4": 0, "g5h6": 0, "d7h3": 0, "d6a3": 0.01, "h7h6": 0, "g5f4": 0, "a8a4": 0, "d5d4": 0, "b8c6": 0, "d6b4": 0, "f8e7": 0.15000000000000002, "d6e7": 0.54, "b7b5": 0, "d6a6": 0, "d6h2": 0.17, "f8g7": 0, "d6b6": 0, "d7f5": 0, "d7a4": 0, "d6e5": 0.01, "d6c5": 0, "a8a6": 0, "a8a3": 0, "d7c6": 0, "d7e8": 0, "d6c7": 0.01, "g5h4": 0 }, "confidence": 0.52 } }, "usage": { "input_tokens": 1870, "output_tokens": 530, "cost": 7.854e-05 }, "provider": "TypeSafe" }, "elapsed_s": 1.5210180740104988 }, { "stage": "selection", "candidate": null, "request": { "model": "typesafe/jev-1.13", "state": { "position": { "fen": "rn3bnB/1p1bp2p/3q2p1/3p2k1/4R3/8/PPP2PPP/R2Q2K1 w - - 1 18", "board": "8 r n . . . b n B\n7 . p . b p . . p\n6 . . . q . . p .\n5 . . . p . . k .\n4 . . . . R . . .\n3 . . . . . . . .\n2 P P P . . P P P\n1 R . . Q . . K .\n a b c d e f g h", "legend": "Uppercase = White, lowercase = Black. P pawn, N knight, B bishop, R rook, Q queen, K king; . empty.", "you_play": "White", "in_check": false, "history_uci": [ "g1f3", "a7a5", "b1c3", "f7f5", "d2d4", "e8f7", "e2e3", "c7c6", "f1c4", "d7d5", "e1g1", "d5c4", "f3e5", "f7f6", "e5c4", "c8e6", "c3d5", "d8d5", "c4a5", "d5a5", "c1d2", "a5d8", "f1e1", "d8d6", "d2c3", "g7g6", "e3e4", "f5e4", "d4d5", "f6g5", "c3h8", "c6d5", "e1e4", "e6d7" ], "history_san": [ "Nf3", "a5", "Nc3", "f5", "d4", "Kf7", "e3", "c6", "Bc4+", "d5", "O-O", "dxc4", "Ne5+", "Kf6", "Nxc4", "Be6", "Nd5+", "Qxd5", "Nxa5", "Qxa5", "Bd2", "Qd8", "Re1", "Qd6", "Bc3", "g6", "e4", "fxe4", "d5+", "Kg5", "Bxh8", "cxd5", "Rxe4", "Bd7" ], "pieces": { "white": { "a1": "rook", "d1": "queen", "g1": "king", "a2": "pawn", "b2": "pawn", "c2": "pawn", "f2": "pawn", "g2": "pawn", "h2": "pawn", "e4": "rook", "h8": "bishop" }, "black": { "d5": "pawn", "g5": "king", "d6": "queen", "g6": "pawn", "b7": "pawn", "d7": "bishop", "e7": "pawn", "h7": "pawn", "a8": "rook", "b8": "knight", "f8": "bishop", "g8": "knight" } } }, "reviews": [ { "uci": "d1d5", "proposal_probability": 0.23, "loss_probability": 0.51, "mate_probability": 0.27, "quality": 1.93, "black_reply": "d6d5", "after_model_reply": { "fen": "rn3bnB/1p1bp2p/6p1/3q2k1/4R3/8/PPP2PPP/R5K1 w - - 0 19", "side_to_move": "white", "pieces": { "a1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "e4": "white rook", "d5": "black queen", "g5": "black king", "g6": "black pawn", "b7": "black pawn", "d7": "black bishop", "e7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "f8": "black bishop", "g8": "black knight", "h8": "white bishop" }, "in_check": false, "terminal": false } }, { "uci": "h8f6", "proposal_probability": 0.12, "loss_probability": 0.49, "mate_probability": 0.28, "quality": 1.72, "black_reply": "d6f6", "after_model_reply": { "fen": "rn3bn1/1p1bp2p/5qp1/3p2k1/4R3/8/PPP2PPP/R2Q2K1 w - - 0 19", "side_to_move": "white", "pieces": { "a1": "white rook", "d1": "white queen", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "e4": "white rook", "d5": "black pawn", "g5": "black king", "f6": "black queen", "g6": "black pawn", "b7": "black pawn", "d7": "black bishop", "e7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "f8": "black bishop", "g8": "black knight" }, "in_check": false, "terminal": false } }, { "uci": "e4e7", "proposal_probability": 0.09999999999999999, "loss_probability": 0.51, "mate_probability": 0.18, "quality": 2.22, "black_reply": "d6e7", "after_model_reply": { "fen": "rn3bnB/1p1bq2p/6p1/3p2k1/8/8/PPP2PPP/R2Q2K1 w - - 0 19", "side_to_move": "white", "pieces": { "a1": "white rook", "d1": "white queen", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "d5": "black pawn", "g5": "black king", "g6": "black pawn", "b7": "black pawn", "d7": "black bishop", "e7": "black queen", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "f8": "black bishop", "g8": "black knight", "h8": "white bishop" }, "in_check": false, "terminal": false } } ], "warning": "Reviews and Black replies are fallible predictions of the same Jev model, not verified engine evaluations." }, "questions": { "move": { "type": "choice", "instructions": "Choose the best White move from the reviewed candidates. Independently check each hypothetical Black reply, captures and recaptures. Prefer avoiding material loss, then useful progress and king safety. Reviews may be wrong. A high proposal probability does not prove a good move.", "criteria": { "d1d5": "queen d1 to d5; captures pawn; SAN Qxd5+", "h8f6": "bishop h8 to f6; SAN Bf6+", "e4e7": "rook e4 to e7; captures pawn; SAN Rxe7" } } } }, "safety": null, "turn": 18, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "move": { "type": "choice", "choice": "h8f6", "probabilities": { "e4e7": 0.35, "h8f6": 0.36, "d1d5": 0.29 }, "confidence": 0.05 } }, "usage": { "input_tokens": 2443, "output_tokens": 50, "cost": 0.000102606 }, "provider": "TypeSafe" }, "elapsed_s": 1.7686688270187005 }, { "stage": "proposal", "candidate": null, "request": { "model": "typesafe/jev-1.13", "state": { "fen": "rn3bn1/1p1bp2p/3q1kp1/3p4/4R3/8/PPP2PPP/R2Q2K1 w - - 0 19", "board": "8 r n . . . b n .\n7 . p . b p . . p\n6 . . . q . k p .\n5 . . . p . . . .\n4 . . . . R . . .\n3 . . . . . . . .\n2 P P P . . P P P\n1 R . . Q . . K .\n a b c d e f g h", "legend": "Uppercase = White, lowercase = Black. P pawn, N knight, B bishop, R rook, Q queen, K king; . empty.", "you_play": "White", "in_check": false, "history_uci": [ "g1f3", "a7a5", "b1c3", "f7f5", "d2d4", "e8f7", "e2e3", "c7c6", "f1c4", "d7d5", "e1g1", "d5c4", "f3e5", "f7f6", "e5c4", "c8e6", "c3d5", "d8d5", "c4a5", "d5a5", "c1d2", "a5d8", "f1e1", "d8d6", "d2c3", "g7g6", "e3e4", "f5e4", "d4d5", "f6g5", "c3h8", "c6d5", "e1e4", "e6d7", "h8f6", "g5f6" ], "history_san": [ "Nf3", "a5", "Nc3", "f5", "d4", "Kf7", "e3", "c6", "Bc4+", "d5", "O-O", "dxc4", "Ne5+", "Kf6", "Nxc4", "Be6", "Nd5+", "Qxd5", "Nxa5", "Qxa5", "Bd2", "Qd8", "Re1", "Qd6", "Bc3", "g6", "e4", "fxe4", "d5+", "Kg5", "Bxh8", "cxd5", "Rxe4", "Bd7", "Bf6+", "Kxf6" ], "pieces": { "white": { "a1": "rook", "d1": "queen", "g1": "king", "a2": "pawn", "b2": "pawn", "c2": "pawn", "f2": "pawn", "g2": "pawn", "h2": "pawn", "e4": "rook" }, "black": { "d5": "pawn", "d6": "queen", "f6": "king", "g6": "pawn", "b7": "pawn", "d7": "bishop", "e7": "pawn", "h7": "pawn", "a8": "rook", "b8": "knight", "f8": "bishop", "g8": "knight" } } }, "questions": { "move": { "type": "choice", "instructions": "Choose one legal White move. You alone evaluate the moves; their list is unranked. Use the explicit piece locations to check the destination and any lines opened by moving. First consider whether Black can capture your queen, rook or minor pieces after the move. Count both sides of an exchange: pawn=1, knight/bishop=3, rook=5, queen=9. Prefer keeping material unless you can establish a concrete profitable continuation. Giving check is NOT compensation for losing a piece. When no tactic works, develop or improve a safe piece. Protect your king and aim for checkmate. Read the history to avoid purposeless repeats when ahead; a draw can be useful when losing. Return one offered UCI move.", "criteria": { "a1b1": "rook a1 to b1; SAN Rb1", "a1c1": "rook a1 to c1; SAN Rc1", "a2a3": "pawn a2 to a3; SAN a3", "a2a4": "pawn a2 to a4; SAN a4", "b2b3": "pawn b2 to b3; SAN b3", "b2b4": "pawn b2 to b4; SAN b4", "c2c3": "pawn c2 to c3; SAN c3", "c2c4": "pawn c2 to c4; SAN c4", "d1b1": "queen d1 to b1; SAN Qb1", "d1c1": "queen d1 to c1; SAN Qc1", "d1d2": "queen d1 to d2; SAN Qd2", "d1d3": "queen d1 to d3; SAN Qd3", "d1d4": "queen d1 to d4; SAN Qd4+", "d1d5": "queen d1 to d5; captures pawn; SAN Qxd5", "d1e1": "queen d1 to e1; SAN Qe1", "d1e2": "queen d1 to e2; SAN Qe2", "d1f1": "queen d1 to f1; SAN Qf1", "d1f3": "queen d1 to f3; SAN Qf3+", "d1g4": "queen d1 to g4; SAN Qg4", "d1h5": "queen d1 to h5; SAN Qh5", "e4a4": "rook e4 to a4; SAN Ra4", "e4b4": "rook e4 to b4; SAN Rb4", "e4c4": "rook e4 to c4; SAN Rc4", "e4d4": "rook e4 to d4; SAN Rd4", "e4e1": "rook e4 to e1; SAN Re1", "e4e2": "rook e4 to e2; SAN Re2", "e4e3": "rook e4 to e3; SAN Re3", "e4e5": "rook e4 to e5; SAN Re5", "e4e6": "rook e4 to e6; SAN Re6+", "e4e7": "rook e4 to e7; captures pawn; SAN Rxe7", "e4f4": "rook e4 to f4; SAN Rf4+", "e4g4": "rook e4 to g4; SAN Rg4", "e4h4": "rook e4 to h4; SAN Rh4", "f2f3": "pawn f2 to f3; SAN f3", "f2f4": "pawn f2 to f4; SAN f4", "g1f1": "king g1 to f1; SAN Kf1", "g1h1": "king g1 to h1; SAN Kh1", "g2g3": "pawn g2 to g3; SAN g3", "g2g4": "pawn g2 to g4; SAN g4", "h2h3": "pawn h2 to h3; SAN h3", "h2h4": "pawn h2 to h4; SAN h4" } } } }, "safety": null, "turn": 19, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "move": { "type": "choice", "choice": "d1d5", "probabilities": { "f2f3": 0.01, "e4d4": 0.01, "e4c4": 0.01, "a1c1": 0.01, "d1b1": 0.01, "d1g4": 0.03, "e4e2": 0.01, "d1h5": 0.02, "e4e7": 0.1, "a1b1": 0.01, "c2c3": 0.02, "f2f4": 0, "e4g4": 0.01, "c2c4": 0.01, "a2a3": 0.01, "a2a4": 0, "h2h3": 0, "d1f1": 0.01, "e4e1": 0.02, "d1d4": 0.05, "b2b3": 0.01, "d1e2": 0.01, "d1d3": 0.02, "e4e3": 0.01, "d1d2": 0.02, "e4h4": 0.02, "d1c1": 0.01, "e4a4": 0.01, "d1e1": 0.02, "e4e5": 0.01, "e4e6": 0.07, "e4b4": 0.01, "e4f4": 0.07, "d1d5": 0.25, "h2h4": 0, "g1h1": 0.02, "g1f1": 0.03, "d1f3": 0.05, "b2b4": 0, "g2g3": 0.01, "g2g4": 0 }, "confidence": 0.23 } }, "usage": { "input_tokens": 2340, "output_tokens": 430, "cost": 9.828e-05 }, "provider": "TypeSafe" }, "elapsed_s": 1.384368659928441 }, { "stage": "review", "candidate": "d1d5", "request": { "model": "typesafe/jev-1.13", "state": { "before": { "fen": "rn3bn1/1p1bp2p/3q1kp1/3p4/4R3/8/PPP2PPP/R2Q2K1 w - - 0 19", "side_to_move": "white", "pieces": { "a1": "white rook", "d1": "white queen", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "e4": "white rook", "d5": "black pawn", "d6": "black queen", "f6": "black king", "g6": "black pawn", "b7": "black pawn", "d7": "black bishop", "e7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "f8": "black bishop", "g8": "black knight" }, "in_check": false, "terminal": false }, "candidate": { "uci": "d1d5", "san": "Qxd5" }, "after": { "fen": "rn3bn1/1p1bp2p/3q1kp1/3Q4/4R3/8/PPP2PPP/R5K1 b - - 0 19", "side_to_move": "black", "pieces": { "a1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "e4": "white rook", "d5": "white queen", "d6": "black queen", "f6": "black king", "g6": "black pawn", "b7": "black pawn", "d7": "black bishop", "e7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "f8": "black bishop", "g8": "black knight" }, "in_check": false, "terminal": false } }, "questions": { "loses_material": { "type": "noul", "instructions": "After the candidate White move, can Black force a net material gain soon? Check legal captures, recaptures and attacks on ALL White pieces. A fair exchange is not a loss; merely being attacked is not enough. Assess from White perspective." }, "allows_mate": { "type": "noul", "instructions": "Can Black checkmate White on its very next move in the after position?" }, "quality": { "type": "score", "instructions": "Evaluate the candidate for White after Black responds strongly. Do not reward a check that sacrifices material without compensation.", "criteria": [ "Losing blunder", "Dubious or wasteful", "Playable", "Good", "Winning or excellent" ] }, "black_reply": { "type": "choice", "instructions": "Play Black in the AFTER position. Choose the strongest reply to punish White, especially hanging pieces or checkmate. Every offered move is legal.", "criteria": { "a8a2": "Rxa2", "a8a3": "Ra3", "a8a4": "Ra4", "a8a5": "Ra5", "a8a6": "Ra6", "a8a7": "Ra7", "b7b5": "b5", "b7b6": "b6", "b8a6": "Na6", "b8c6": "Nc6", "d6a3": "Qa3", "d6a6": "Qa6", "d6b4": "Qb4", "d6b6": "Qb6", "d6c5": "Qc5", "d6c6": "Qc6", "d6c7": "Qc7", "d6d5": "Qxd5", "d6e5": "Qe5", "d6e6": "Qe6", "d6f4": "Qf4", "d6g3": "Qg3", "d6h2": "Qxh2+", "d7a4": "Ba4", "d7b5": "Bb5", "d7c6": "Bc6", "d7c8": "Bc8", "d7e6": "Be6", "d7e8": "Be8", "d7f5": "Bf5", "d7g4": "Bg4", "d7h3": "Bh3", "e7e5": "e5", "e7e6": "e6", "f6g7": "Kg7", "f8g7": "Bg7", "f8h6": "Bh6", "g6g5": "g5", "g8h6": "Nh6", "h7h5": "h5", "h7h6": "h6" } } } }, "safety": null, "turn": 19, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "loses_material": { "type": "noul", "noul": 0.54 }, "allows_mate": { "type": "noul", "noul": 0.18 }, "quality": { "type": "score", "score": 1.99, "legend": { "0": "Losing blunder", "1": "Dubious or wasteful", "2": "Playable", "3": "Good", "4": "Winning or excellent" }, "probabilities": { "0": 0.2, "1": 0.22, "2": 0.16, "3": 0.24, "4": 0.18 }, "confidence": 0 }, "black_reply": { "type": "choice", "choice": "d6d5", "probabilities": { "d6c5": 0.01, "d7f5": 0.01, "d6f4": 0.04, "e7e5": 0, "e7e6": 0, "d7c6": 0, "d6d5": 0.65, "h7h5": 0, "d6e6": 0, "a8a4": 0.01, "d6c7": 0, "f8h6": 0, "b7b5": 0, "d7g4": 0, "a8a2": 0.01, "f8g7": 0, "d6b6": 0, "a8a7": 0, "a8a3": 0, "d7e8": 0, "a8a6": 0, "d6a3": 0.02, "f6g7": 0, "d6h2": 0.14, "d6c6": 0, "b8a6": 0, "b8c6": 0.01, "d7e6": 0, "d6b4": 0.01, "d7a4": 0, "g8h6": 0, "d6g3": 0.02, "g6g5": 0, "d7c8": 0, "d6a6": 0, "d6e5": 0.05, "d7b5": 0, "b7b6": 0, "d7h3": 0, "h7h6": 0, "a8a5": 0.01 }, "confidence": 0.63 } }, "usage": { "input_tokens": 1759, "output_tokens": 480, "cost": 7.3878e-05 }, "provider": "TypeSafe" }, "elapsed_s": 1.3520496860146523 }, { "stage": "review", "candidate": "e4e7", "request": { "model": "typesafe/jev-1.13", "state": { "before": { "fen": "rn3bn1/1p1bp2p/3q1kp1/3p4/4R3/8/PPP2PPP/R2Q2K1 w - - 0 19", "side_to_move": "white", "pieces": { "a1": "white rook", "d1": "white queen", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "e4": "white rook", "d5": "black pawn", "d6": "black queen", "f6": "black king", "g6": "black pawn", "b7": "black pawn", "d7": "black bishop", "e7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "f8": "black bishop", "g8": "black knight" }, "in_check": false, "terminal": false }, "candidate": { "uci": "e4e7", "san": "Rxe7" }, "after": { "fen": "rn3bn1/1p1bR2p/3q1kp1/3p4/8/8/PPP2PPP/R2Q2K1 b - - 0 19", "side_to_move": "black", "pieces": { "a1": "white rook", "d1": "white queen", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "d5": "black pawn", "d6": "black queen", "f6": "black king", "g6": "black pawn", "b7": "black pawn", "d7": "black bishop", "e7": "white rook", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "f8": "black bishop", "g8": "black knight" }, "in_check": false, "terminal": false } }, "questions": { "loses_material": { "type": "noul", "instructions": "After the candidate White move, can Black force a net material gain soon? Check legal captures, recaptures and attacks on ALL White pieces. A fair exchange is not a loss; merely being attacked is not enough. Assess from White perspective." }, "allows_mate": { "type": "noul", "instructions": "Can Black checkmate White on its very next move in the after position?" }, "quality": { "type": "score", "instructions": "Evaluate the candidate for White after Black responds strongly. Do not reward a check that sacrifices material without compensation.", "criteria": [ "Losing blunder", "Dubious or wasteful", "Playable", "Good", "Winning or excellent" ] }, "black_reply": { "type": "choice", "instructions": "Play Black in the AFTER position. Choose the strongest reply to punish White, especially hanging pieces or checkmate. Every offered move is legal.", "criteria": { "a8a2": "Rxa2", "a8a3": "Ra3", "a8a4": "Ra4", "a8a5": "Ra5", "a8a6": "Ra6", "a8a7": "Ra7", "b7b5": "b5", "b7b6": "b6", "b8a6": "Na6", "b8c6": "Nc6", "d5d4": "d4", "d6a3": "Qa3", "d6a6": "Qa6", "d6b4": "Qb4", "d6b6": "Qb6", "d6c5": "Qc5", "d6c6": "Qc6", "d6c7": "Qc7", "d6e5": "Qe5", "d6e6": "Qe6", "d6e7": "Qxe7", "d6f4": "Qf4", "d6g3": "Qg3", "d6h2": "Qxh2+", "d7a4": "Ba4", "d7b5": "Bb5", "d7c6": "Bc6", "d7c8": "Bc8", "d7e6": "Be6", "d7e8": "Be8", "d7f5": "Bf5", "d7g4": "Bg4", "d7h3": "Bh3", "f6e7": "Kxe7", "f6f5": "Kf5", "f6g5": "Kg5", "f8e7": "Bxe7", "f8g7": "Bg7", "f8h6": "Bh6", "g6g5": "g5", "g8e7": "Nxe7", "g8h6": "Nh6", "h7h5": "h5", "h7h6": "h6" } } } }, "safety": null, "turn": 19, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "loses_material": { "type": "noul", "noul": 0.52 }, "allows_mate": { "type": "noul", "noul": 0.17 }, "quality": { "type": "score", "score": 2.19, "legend": { "0": "Losing blunder", "1": "Dubious or wasteful", "2": "Playable", "3": "Good", "4": "Winning or excellent" }, "probabilities": { "0": 0.12, "1": 0.23, "2": 0.17, "3": 0.31, "4": 0.17 }, "confidence": 0.03 }, "black_reply": { "type": "choice", "choice": "d6e7", "probabilities": { "d7b5": 0, "d7c8": 0, "d6c5": 0, "a8a2": 0.01, "b8c6": 0, "b7b5": 0, "d7h3": 0, "d5d4": 0, "d7g4": 0, "f6e7": 0.23, "d6g3": 0.02, "f6f5": 0, "d7c6": 0, "d6a6": 0, "d6h2": 0.13, "d6b6": 0, "f8h6": 0, "g8h6": 0, "d6b4": 0.01, "a8a6": 0, "d7e6": 0, "d6e6": 0, "f8g7": 0, "f6g5": 0, "d6a3": 0.01, "h7h6": 0, "d6c6": 0, "f8e7": 0.08, "a8a7": 0, "d6c7": 0.01, "d6e5": 0.01, "b8a6": 0, "a8a5": 0, "d7e8": 0, "d7a4": 0, "a8a4": 0, "b7b6": 0, "a8a3": 0, "d6f4": 0.01, "g6g5": 0, "d6e7": 0.42, "d7f5": 0, "h7h5": 0, "g8e7": 0.060000000000000005 }, "confidence": 0.4 } }, "usage": { "input_tokens": 1812, "output_tokens": 510, "cost": 7.6104e-05 }, "provider": "TypeSafe" }, "elapsed_s": 1.805929196998477 }, { "stage": "review", "candidate": "e4e6", "request": { "model": "typesafe/jev-1.13", "state": { "before": { "fen": "rn3bn1/1p1bp2p/3q1kp1/3p4/4R3/8/PPP2PPP/R2Q2K1 w - - 0 19", "side_to_move": "white", "pieces": { "a1": "white rook", "d1": "white queen", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "e4": "white rook", "d5": "black pawn", "d6": "black queen", "f6": "black king", "g6": "black pawn", "b7": "black pawn", "d7": "black bishop", "e7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "f8": "black bishop", "g8": "black knight" }, "in_check": false, "terminal": false }, "candidate": { "uci": "e4e6", "san": "Re6+" }, "after": { "fen": "rn3bn1/1p1bp2p/3qRkp1/3p4/8/8/PPP2PPP/R2Q2K1 b - - 1 19", "side_to_move": "black", "pieces": { "a1": "white rook", "d1": "white queen", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "d5": "black pawn", "d6": "black queen", "e6": "white rook", "f6": "black king", "g6": "black pawn", "b7": "black pawn", "d7": "black bishop", "e7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "f8": "black bishop", "g8": "black knight" }, "in_check": true, "terminal": false } }, "questions": { "loses_material": { "type": "noul", "instructions": "After the candidate White move, can Black force a net material gain soon? Check legal captures, recaptures and attacks on ALL White pieces. A fair exchange is not a loss; merely being attacked is not enough. Assess from White perspective." }, "allows_mate": { "type": "noul", "instructions": "Can Black checkmate White on its very next move in the after position?" }, "quality": { "type": "score", "instructions": "Evaluate the candidate for White after Black responds strongly. Do not reward a check that sacrifices material without compensation.", "criteria": [ "Losing blunder", "Dubious or wasteful", "Playable", "Good", "Winning or excellent" ] }, "black_reply": { "type": "choice", "instructions": "Play Black in the AFTER position. Choose the strongest reply to punish White, especially hanging pieces or checkmate. Every offered move is legal.", "criteria": { "d6e6": "Qxe6", "d7e6": "Bxe6", "f6e6": "Kxe6", "f6f5": "Kf5", "f6f7": "Kf7", "f6g5": "Kg5", "f6g7": "Kg7" } } } }, "safety": null, "turn": 19, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "loses_material": { "type": "noul", "noul": 0.48 }, "allows_mate": { "type": "noul", "noul": 0.19 }, "quality": { "type": "score", "score": 1.81, "legend": { "0": "Losing blunder", "1": "Dubious or wasteful", "2": "Playable", "3": "Good", "4": "Winning or excellent" }, "probabilities": { "0": 0.22, "1": 0.26, "2": 0.16, "3": 0.21, "4": 0.15 }, "confidence": 0 }, "black_reply": { "type": "choice", "choice": "d6e6", "probabilities": { "f6e6": 0.18, "d6e6": 0.44, "f6g5": 0.03, "f6f7": 0.04, "d7e6": 0.21, "f6f5": 0.04, "f6g7": 0.06 }, "confidence": 0.36 } }, "usage": { "input_tokens": 1220, "output_tokens": 140, "cost": 5.124e-05 }, "provider": "TypeSafe" }, "elapsed_s": 1.4062555659329519 }, { "stage": "selection", "candidate": null, "request": { "model": "typesafe/jev-1.13", "state": { "position": { "fen": "rn3bn1/1p1bp2p/3q1kp1/3p4/4R3/8/PPP2PPP/R2Q2K1 w - - 0 19", "board": "8 r n . . . b n .\n7 . p . b p . . p\n6 . . . q . k p .\n5 . . . p . . . .\n4 . . . . R . . .\n3 . . . . . . . .\n2 P P P . . P P P\n1 R . . Q . . K .\n a b c d e f g h", "legend": "Uppercase = White, lowercase = Black. P pawn, N knight, B bishop, R rook, Q queen, K king; . empty.", "you_play": "White", "in_check": false, "history_uci": [ "g1f3", "a7a5", "b1c3", "f7f5", "d2d4", "e8f7", "e2e3", "c7c6", "f1c4", "d7d5", "e1g1", "d5c4", "f3e5", "f7f6", "e5c4", "c8e6", "c3d5", "d8d5", "c4a5", "d5a5", "c1d2", "a5d8", "f1e1", "d8d6", "d2c3", "g7g6", "e3e4", "f5e4", "d4d5", "f6g5", "c3h8", "c6d5", "e1e4", "e6d7", "h8f6", "g5f6" ], "history_san": [ "Nf3", "a5", "Nc3", "f5", "d4", "Kf7", "e3", "c6", "Bc4+", "d5", "O-O", "dxc4", "Ne5+", "Kf6", "Nxc4", "Be6", "Nd5+", "Qxd5", "Nxa5", "Qxa5", "Bd2", "Qd8", "Re1", "Qd6", "Bc3", "g6", "e4", "fxe4", "d5+", "Kg5", "Bxh8", "cxd5", "Rxe4", "Bd7", "Bf6+", "Kxf6" ], "pieces": { "white": { "a1": "rook", "d1": "queen", "g1": "king", "a2": "pawn", "b2": "pawn", "c2": "pawn", "f2": "pawn", "g2": "pawn", "h2": "pawn", "e4": "rook" }, "black": { "d5": "pawn", "d6": "queen", "f6": "king", "g6": "pawn", "b7": "pawn", "d7": "bishop", "e7": "pawn", "h7": "pawn", "a8": "rook", "b8": "knight", "f8": "bishop", "g8": "knight" } } }, "reviews": [ { "uci": "d1d5", "proposal_probability": 0.25, "loss_probability": 0.54, "mate_probability": 0.18, "quality": 1.99, "black_reply": "d6d5", "after_model_reply": { "fen": "rn3bn1/1p1bp2p/5kp1/3q4/4R3/8/PPP2PPP/R5K1 w - - 0 20", "side_to_move": "white", "pieces": { "a1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "e4": "white rook", "d5": "black queen", "f6": "black king", "g6": "black pawn", "b7": "black pawn", "d7": "black bishop", "e7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "f8": "black bishop", "g8": "black knight" }, "in_check": false, "terminal": false } }, { "uci": "e4e7", "proposal_probability": 0.1, "loss_probability": 0.52, "mate_probability": 0.17, "quality": 2.19, "black_reply": "d6e7", "after_model_reply": { "fen": "rn3bn1/1p1bq2p/5kp1/3p4/8/8/PPP2PPP/R2Q2K1 w - - 0 20", "side_to_move": "white", "pieces": { "a1": "white rook", "d1": "white queen", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "d5": "black pawn", "f6": "black king", "g6": "black pawn", "b7": "black pawn", "d7": "black bishop", "e7": "black queen", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "f8": "black bishop", "g8": "black knight" }, "in_check": false, "terminal": false } }, { "uci": "e4e6", "proposal_probability": 0.07, "loss_probability": 0.48, "mate_probability": 0.19, "quality": 1.81, "black_reply": "d6e6", "after_model_reply": { "fen": "rn3bn1/1p1bp2p/4qkp1/3p4/8/8/PPP2PPP/R2Q2K1 w - - 0 20", "side_to_move": "white", "pieces": { "a1": "white rook", "d1": "white queen", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "d5": "black pawn", "e6": "black queen", "f6": "black king", "g6": "black pawn", "b7": "black pawn", "d7": "black bishop", "e7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "f8": "black bishop", "g8": "black knight" }, "in_check": false, "terminal": false } } ], "warning": "Reviews and Black replies are fallible predictions of the same Jev model, not verified engine evaluations." }, "questions": { "move": { "type": "choice", "instructions": "Choose the best White move from the reviewed candidates. Independently check each hypothetical Black reply, captures and recaptures. Prefer avoiding material loss, then useful progress and king safety. Reviews may be wrong. A high proposal probability does not prove a good move.", "criteria": { "d1d5": "queen d1 to d5; captures pawn; SAN Qxd5", "e4e7": "rook e4 to e7; captures pawn; SAN Rxe7", "e4e6": "rook e4 to e6; SAN Re6+" } } } }, "safety": null, "turn": 19, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "move": { "type": "choice", "choice": "e4e7", "probabilities": { "e4e6": 0.26, "e4e7": 0.53, "d1d5": 0.21 }, "confidence": 0.3 } }, "usage": { "input_tokens": 2403, "output_tokens": 50, "cost": 0.000100926 }, "provider": "TypeSafe" }, "elapsed_s": 1.745764616993256 }, { "stage": "proposal", "candidate": null, "request": { "model": "typesafe/jev-1.13", "state": { "fen": "rn4n1/1p1bb2p/3q1kp1/3p4/8/8/PPP2PPP/R2Q2K1 w - - 0 20", "board": "8 r n . . . . n .\n7 . p . b b . . p\n6 . . . q . k p .\n5 . . . p . . . .\n4 . . . . . . . .\n3 . . . . . . . .\n2 P P P . . P P P\n1 R . . Q . . K .\n a b c d e f g h", "legend": "Uppercase = White, lowercase = Black. P pawn, N knight, B bishop, R rook, Q queen, K king; . empty.", "you_play": "White", "in_check": false, "history_uci": [ "g1f3", "a7a5", "b1c3", "f7f5", "d2d4", "e8f7", "e2e3", "c7c6", "f1c4", "d7d5", "e1g1", "d5c4", "f3e5", "f7f6", "e5c4", "c8e6", "c3d5", "d8d5", "c4a5", "d5a5", "c1d2", "a5d8", "f1e1", "d8d6", "d2c3", "g7g6", "e3e4", "f5e4", "d4d5", "f6g5", "c3h8", "c6d5", "e1e4", "e6d7", "h8f6", "g5f6", "e4e7", "f8e7" ], "history_san": [ "Nf3", "a5", "Nc3", "f5", "d4", "Kf7", "e3", "c6", "Bc4+", "d5", "O-O", "dxc4", "Ne5+", "Kf6", "Nxc4", "Be6", "Nd5+", "Qxd5", "Nxa5", "Qxa5", "Bd2", "Qd8", "Re1", "Qd6", "Bc3", "g6", "e4", "fxe4", "d5+", "Kg5", "Bxh8", "cxd5", "Rxe4", "Bd7", "Bf6+", "Kxf6", "Rxe7", "Bxe7" ], "pieces": { "white": { "a1": "rook", "d1": "queen", "g1": "king", "a2": "pawn", "b2": "pawn", "c2": "pawn", "f2": "pawn", "g2": "pawn", "h2": "pawn" }, "black": { "d5": "pawn", "d6": "queen", "f6": "king", "g6": "pawn", "b7": "pawn", "d7": "bishop", "e7": "bishop", "h7": "pawn", "a8": "rook", "b8": "knight", "g8": "knight" } } }, "questions": { "move": { "type": "choice", "instructions": "Choose one legal White move. You alone evaluate the moves; their list is unranked. Use the explicit piece locations to check the destination and any lines opened by moving. First consider whether Black can capture your queen, rook or minor pieces after the move. Count both sides of an exchange: pawn=1, knight/bishop=3, rook=5, queen=9. Prefer keeping material unless you can establish a concrete profitable continuation. Giving check is NOT compensation for losing a piece. When no tactic works, develop or improve a safe piece. Protect your king and aim for checkmate. Read the history to avoid purposeless repeats when ahead; a draw can be useful when losing. Return one offered UCI move.", "criteria": { "a1b1": "rook a1 to b1; SAN Rb1", "a1c1": "rook a1 to c1; SAN Rc1", "a2a3": "pawn a2 to a3; SAN a3", "a2a4": "pawn a2 to a4; SAN a4", "b2b3": "pawn b2 to b3; SAN b3", "b2b4": "pawn b2 to b4; SAN b4", "c2c3": "pawn c2 to c3; SAN c3", "c2c4": "pawn c2 to c4; SAN c4", "d1b1": "queen d1 to b1; SAN Qb1", "d1c1": "queen d1 to c1; SAN Qc1", "d1d2": "queen d1 to d2; SAN Qd2", "d1d3": "queen d1 to d3; SAN Qd3", "d1d4": "queen d1 to d4; SAN Qd4+", "d1d5": "queen d1 to d5; captures pawn; SAN Qxd5", "d1e1": "queen d1 to e1; SAN Qe1", "d1e2": "queen d1 to e2; SAN Qe2", "d1f1": "queen d1 to f1; SAN Qf1", "d1f3": "queen d1 to f3; SAN Qf3+", "d1g4": "queen d1 to g4; SAN Qg4", "d1h5": "queen d1 to h5; SAN Qh5", "f2f3": "pawn f2 to f3; SAN f3", "f2f4": "pawn f2 to f4; SAN f4", "g1f1": "king g1 to f1; SAN Kf1", "g1h1": "king g1 to h1; SAN Kh1", "g2g3": "pawn g2 to g3; SAN g3", "g2g4": "pawn g2 to g4; SAN g4", "h2h3": "pawn h2 to h3; SAN h3", "h2h4": "pawn h2 to h4; SAN h4" } } } }, "safety": null, "turn": 20, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "move": { "type": "choice", "choice": "d1d5", "probabilities": { "d1h5": 0.02, "c2c4": 0.01, "b2b3": 0.01, "d1d2": 0.04, "a2a4": 0.01, "d1c1": 0.01, "g2g4": 0.01, "d1f3": 0.08, "a1b1": 0.02, "d1e2": 0.01, "a1c1": 0.02, "g1f1": 0.04, "h2h4": 0, "h2h3": 0.01, "d1d3": 0.02, "g1h1": 0.02, "d1f1": 0.01, "d1e1": 0.03, "d1g4": 0.03, "d1d4": 0.07, "f2f3": 0.01, "d1b1": 0.01, "f2f4": 0.01, "g2g3": 0.01, "c2c3": 0.02, "b2b4": 0.01, "a2a3": 0.01, "d1d5": 0.45 }, "confidence": 0.44 } }, "usage": { "input_tokens": 2011, "output_tokens": 300, "cost": 8.4462e-05 }, "provider": "TypeSafe" }, "elapsed_s": 1.4457167339278385 }, { "stage": "review", "candidate": "d1d5", "request": { "model": "typesafe/jev-1.13", "state": { "before": { "fen": "rn4n1/1p1bb2p/3q1kp1/3p4/8/8/PPP2PPP/R2Q2K1 w - - 0 20", "side_to_move": "white", "pieces": { "a1": "white rook", "d1": "white queen", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "d5": "black pawn", "d6": "black queen", "f6": "black king", "g6": "black pawn", "b7": "black pawn", "d7": "black bishop", "e7": "black bishop", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "g8": "black knight" }, "in_check": false, "terminal": false }, "candidate": { "uci": "d1d5", "san": "Qxd5" }, "after": { "fen": "rn4n1/1p1bb2p/3q1kp1/3Q4/8/8/PPP2PPP/R5K1 b - - 0 20", "side_to_move": "black", "pieces": { "a1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "d5": "white queen", "d6": "black queen", "f6": "black king", "g6": "black pawn", "b7": "black pawn", "d7": "black bishop", "e7": "black bishop", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "g8": "black knight" }, "in_check": false, "terminal": false } }, "questions": { "loses_material": { "type": "noul", "instructions": "After the candidate White move, can Black force a net material gain soon? Check legal captures, recaptures and attacks on ALL White pieces. A fair exchange is not a loss; merely being attacked is not enough. Assess from White perspective." }, "allows_mate": { "type": "noul", "instructions": "Can Black checkmate White on its very next move in the after position?" }, "quality": { "type": "score", "instructions": "Evaluate the candidate for White after Black responds strongly. Do not reward a check that sacrifices material without compensation.", "criteria": [ "Losing blunder", "Dubious or wasteful", "Playable", "Good", "Winning or excellent" ] }, "black_reply": { "type": "choice", "instructions": "Play Black in the AFTER position. Choose the strongest reply to punish White, especially hanging pieces or checkmate. Every offered move is legal.", "criteria": { "a8a2": "Rxa2", "a8a3": "Ra3", "a8a4": "Ra4", "a8a5": "Ra5", "a8a6": "Ra6", "a8a7": "Ra7", "b7b5": "b5", "b7b6": "b6", "b8a6": "Na6", "b8c6": "Nc6", "d6a3": "Qa3", "d6a6": "Qa6", "d6b4": "Qb4", "d6b6": "Qb6", "d6c5": "Qc5", "d6c6": "Qc6", "d6c7": "Qc7", "d6d5": "Qxd5", "d6e5": "Qe5", "d6e6": "Qe6", "d6f4": "Qf4", "d6g3": "Qg3", "d6h2": "Qxh2+", "d7a4": "Ba4", "d7b5": "Bb5", "d7c6": "Bc6", "d7c8": "Bc8", "d7e6": "Be6", "d7e8": "Be8", "d7f5": "Bf5", "d7g4": "Bg4", "d7h3": "Bh3", "e7d8": "Bd8", "e7f8": "Bf8", "f6g7": "Kg7", "g6g5": "g5", "g8h6": "Nh6", "h7h5": "h5", "h7h6": "h6" } } } }, "safety": null, "turn": 20, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "loses_material": { "type": "noul", "noul": 0.52 }, "allows_mate": { "type": "noul", "noul": 0.23 }, "quality": { "type": "score", "score": 1.96, "legend": { "0": "Losing blunder", "1": "Dubious or wasteful", "2": "Playable", "3": "Good", "4": "Winning or excellent" }, "probabilities": { "0": 0.2, "1": 0.23, "2": 0.15, "3": 0.25, "4": 0.17 }, "confidence": 0 }, "black_reply": { "type": "choice", "choice": "d6d5", "probabilities": { "d6g3": 0.03, "d7e8": 0, "d6f4": 0.01, "a8a7": 0, "g6g5": 0, "a8a2": 0.03, "e7d8": 0, "g8h6": 0, "d6b6": 0, "d6a3": 0.01, "d7a4": 0, "d7c6": 0.02, "d6c7": 0, "b7b6": 0, "d7e6": 0, "b7b5": 0, "h7h6": 0, "a8a5": 0.01, "f6g7": 0, "b8a6": 0, "d7c8": 0, "d6e6": 0, "d7b5": 0, "d7f5": 0, "h7h5": 0, "d6c6": 0, "d7h3": 0, "d7g4": 0, "d6b4": 0, "e7f8": 0, "a8a3": 0, "d6e5": 0.01, "d6d5": 0.77, "a8a4": 0, "d6c5": 0.01, "d6a6": 0, "a8a6": 0, "b8c6": 0.01, "d6h2": 0.08 }, "confidence": 0.75 } }, "usage": { "input_tokens": 1682, "output_tokens": 460, "cost": 7.0644e-05 }, "provider": "TypeSafe" }, "elapsed_s": 1.4593232220504433 }, { "stage": "review", "candidate": "d1f3", "request": { "model": "typesafe/jev-1.13", "state": { "before": { "fen": "rn4n1/1p1bb2p/3q1kp1/3p4/8/8/PPP2PPP/R2Q2K1 w - - 0 20", "side_to_move": "white", "pieces": { "a1": "white rook", "d1": "white queen", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "d5": "black pawn", "d6": "black queen", "f6": "black king", "g6": "black pawn", "b7": "black pawn", "d7": "black bishop", "e7": "black bishop", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "g8": "black knight" }, "in_check": false, "terminal": false }, "candidate": { "uci": "d1f3", "san": "Qf3+" }, "after": { "fen": "rn4n1/1p1bb2p/3q1kp1/3p4/8/5Q2/PPP2PPP/R5K1 b - - 1 20", "side_to_move": "black", "pieces": { "a1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "f3": "white queen", "d5": "black pawn", "d6": "black queen", "f6": "black king", "g6": "black pawn", "b7": "black pawn", "d7": "black bishop", "e7": "black bishop", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "g8": "black knight" }, "in_check": true, "terminal": false } }, "questions": { "loses_material": { "type": "noul", "instructions": "After the candidate White move, can Black force a net material gain soon? Check legal captures, recaptures and attacks on ALL White pieces. A fair exchange is not a loss; merely being attacked is not enough. Assess from White perspective." }, "allows_mate": { "type": "noul", "instructions": "Can Black checkmate White on its very next move in the after position?" }, "quality": { "type": "score", "instructions": "Evaluate the candidate for White after Black responds strongly. Do not reward a check that sacrifices material without compensation.", "criteria": [ "Losing blunder", "Dubious or wasteful", "Playable", "Good", "Winning or excellent" ] }, "black_reply": { "type": "choice", "instructions": "Play Black in the AFTER position. Choose the strongest reply to punish White, especially hanging pieces or checkmate. Every offered move is legal.", "criteria": { "d6f4": "Qf4", "d7f5": "Bf5", "f6e5": "Ke5", "f6e6": "Ke6", "f6g5": "Kg5", "f6g7": "Kg7" } } } }, "safety": null, "turn": 20, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "loses_material": { "type": "noul", "noul": 0.48 }, "allows_mate": { "type": "noul", "noul": 0.27 }, "quality": { "type": "score", "score": 1.53, "legend": { "0": "Losing blunder", "1": "Dubious or wasteful", "2": "Playable", "3": "Good", "4": "Winning or excellent" }, "probabilities": { "0": 0.23, "1": 0.33, "2": 0.2, "3": 0.16, "4": 0.08 }, "confidence": 0.18 }, "black_reply": { "type": "choice", "choice": "d6f4", "probabilities": { "f6g5": 0.1, "f6e5": 0.08, "f6e6": 0.08, "f6g7": 0.08, "d6f4": 0.45, "d7f5": 0.21 }, "confidence": 0.34 } }, "usage": { "input_tokens": 1158, "output_tokens": 130, "cost": 4.8636e-05 }, "provider": "TypeSafe" }, "elapsed_s": 2.0381366219371557 }, { "stage": "review", "candidate": "d1d4", "request": { "model": "typesafe/jev-1.13", "state": { "before": { "fen": "rn4n1/1p1bb2p/3q1kp1/3p4/8/8/PPP2PPP/R2Q2K1 w - - 0 20", "side_to_move": "white", "pieces": { "a1": "white rook", "d1": "white queen", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "d5": "black pawn", "d6": "black queen", "f6": "black king", "g6": "black pawn", "b7": "black pawn", "d7": "black bishop", "e7": "black bishop", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "g8": "black knight" }, "in_check": false, "terminal": false }, "candidate": { "uci": "d1d4", "san": "Qd4+" }, "after": { "fen": "rn4n1/1p1bb2p/3q1kp1/3p4/3Q4/8/PPP2PPP/R5K1 b - - 1 20", "side_to_move": "black", "pieces": { "a1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "d4": "white queen", "d5": "black pawn", "d6": "black queen", "f6": "black king", "g6": "black pawn", "b7": "black pawn", "d7": "black bishop", "e7": "black bishop", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "g8": "black knight" }, "in_check": true, "terminal": false } }, "questions": { "loses_material": { "type": "noul", "instructions": "After the candidate White move, can Black force a net material gain soon? Check legal captures, recaptures and attacks on ALL White pieces. A fair exchange is not a loss; merely being attacked is not enough. Assess from White perspective." }, "allows_mate": { "type": "noul", "instructions": "Can Black checkmate White on its very next move in the after position?" }, "quality": { "type": "score", "instructions": "Evaluate the candidate for White after Black responds strongly. Do not reward a check that sacrifices material without compensation.", "criteria": [ "Losing blunder", "Dubious or wasteful", "Playable", "Good", "Winning or excellent" ] }, "black_reply": { "type": "choice", "instructions": "Play Black in the AFTER position. Choose the strongest reply to punish White, especially hanging pieces or checkmate. Every offered move is legal.", "criteria": { "d6e5": "Qe5", "f6e6": "Ke6", "f6f5": "Kf5", "f6f7": "Kf7", "f6g5": "Kg5" } } } }, "safety": null, "turn": 20, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "loses_material": { "type": "noul", "noul": 0.47 }, "allows_mate": { "type": "noul", "noul": 0.21 }, "quality": { "type": "score", "score": 1.55, "legend": { "0": "Losing blunder", "1": "Dubious or wasteful", "2": "Playable", "3": "Good", "4": "Winning or excellent" }, "probabilities": { "0": 0.25, "1": 0.31, "2": 0.17, "3": 0.17, "4": 0.1 }, "confidence": 0.12 }, "black_reply": { "type": "choice", "choice": "d6e5", "probabilities": { "f6f5": 0.14, "f6e6": 0.16, "f6f7": 0.1, "d6e5": 0.39, "f6g5": 0.21 }, "confidence": 0.24 } }, "usage": { "input_tokens": 1143, "output_tokens": 120, "cost": 4.8006e-05 }, "provider": "TypeSafe" }, "elapsed_s": 1.4090028699720278 }, { "stage": "selection", "candidate": null, "request": { "model": "typesafe/jev-1.13", "state": { "position": { "fen": "rn4n1/1p1bb2p/3q1kp1/3p4/8/8/PPP2PPP/R2Q2K1 w - - 0 20", "board": "8 r n . . . . n .\n7 . p . b b . . p\n6 . . . q . k p .\n5 . . . p . . . .\n4 . . . . . . . .\n3 . . . . . . . .\n2 P P P . . P P P\n1 R . . Q . . K .\n a b c d e f g h", "legend": "Uppercase = White, lowercase = Black. P pawn, N knight, B bishop, R rook, Q queen, K king; . empty.", "you_play": "White", "in_check": false, "history_uci": [ "g1f3", "a7a5", "b1c3", "f7f5", "d2d4", "e8f7", "e2e3", "c7c6", "f1c4", "d7d5", "e1g1", "d5c4", "f3e5", "f7f6", "e5c4", "c8e6", "c3d5", "d8d5", "c4a5", "d5a5", "c1d2", "a5d8", "f1e1", "d8d6", "d2c3", "g7g6", "e3e4", "f5e4", "d4d5", "f6g5", "c3h8", "c6d5", "e1e4", "e6d7", "h8f6", "g5f6", "e4e7", "f8e7" ], "history_san": [ "Nf3", "a5", "Nc3", "f5", "d4", "Kf7", "e3", "c6", "Bc4+", "d5", "O-O", "dxc4", "Ne5+", "Kf6", "Nxc4", "Be6", "Nd5+", "Qxd5", "Nxa5", "Qxa5", "Bd2", "Qd8", "Re1", "Qd6", "Bc3", "g6", "e4", "fxe4", "d5+", "Kg5", "Bxh8", "cxd5", "Rxe4", "Bd7", "Bf6+", "Kxf6", "Rxe7", "Bxe7" ], "pieces": { "white": { "a1": "rook", "d1": "queen", "g1": "king", "a2": "pawn", "b2": "pawn", "c2": "pawn", "f2": "pawn", "g2": "pawn", "h2": "pawn" }, "black": { "d5": "pawn", "d6": "queen", "f6": "king", "g6": "pawn", "b7": "pawn", "d7": "bishop", "e7": "bishop", "h7": "pawn", "a8": "rook", "b8": "knight", "g8": "knight" } } }, "reviews": [ { "uci": "d1d5", "proposal_probability": 0.45, "loss_probability": 0.52, "mate_probability": 0.23, "quality": 1.96, "black_reply": "d6d5", "after_model_reply": { "fen": "rn4n1/1p1bb2p/5kp1/3q4/8/8/PPP2PPP/R5K1 w - - 0 21", "side_to_move": "white", "pieces": { "a1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "d5": "black queen", "f6": "black king", "g6": "black pawn", "b7": "black pawn", "d7": "black bishop", "e7": "black bishop", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "g8": "black knight" }, "in_check": false, "terminal": false } }, { "uci": "d1f3", "proposal_probability": 0.08, "loss_probability": 0.48, "mate_probability": 0.27, "quality": 1.53, "black_reply": "d6f4", "after_model_reply": { "fen": "rn4n1/1p1bb2p/5kp1/3p4/5q2/5Q2/PPP2PPP/R5K1 w - - 2 21", "side_to_move": "white", "pieces": { "a1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "f3": "white queen", "f4": "black queen", "d5": "black pawn", "f6": "black king", "g6": "black pawn", "b7": "black pawn", "d7": "black bishop", "e7": "black bishop", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "g8": "black knight" }, "in_check": false, "terminal": false } }, { "uci": "d1d4", "proposal_probability": 0.07, "loss_probability": 0.47, "mate_probability": 0.21, "quality": 1.55, "black_reply": "d6e5", "after_model_reply": { "fen": "rn4n1/1p1bb2p/5kp1/3pq3/3Q4/8/PPP2PPP/R5K1 w - - 2 21", "side_to_move": "white", "pieces": { "a1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "d4": "white queen", "d5": "black pawn", "e5": "black queen", "f6": "black king", "g6": "black pawn", "b7": "black pawn", "d7": "black bishop", "e7": "black bishop", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "g8": "black knight" }, "in_check": false, "terminal": false } } ], "warning": "Reviews and Black replies are fallible predictions of the same Jev model, not verified engine evaluations." }, "questions": { "move": { "type": "choice", "instructions": "Choose the best White move from the reviewed candidates. Independently check each hypothetical Black reply, captures and recaptures. Prefer avoiding material loss, then useful progress and king safety. Reviews may be wrong. A high proposal probability does not prove a good move.", "criteria": { "d1d5": "queen d1 to d5; captures pawn; SAN Qxd5", "d1f3": "queen d1 to f3; SAN Qf3+", "d1d4": "queen d1 to d4; SAN Qd4+" } } } }, "safety": null, "turn": 20, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "move": { "type": "choice", "choice": "d1d5", "probabilities": { "d1d5": 0.35, "d1d4": 0.35, "d1f3": 0.3 }, "confidence": 0.03 } }, "usage": { "input_tokens": 2373, "output_tokens": 50, "cost": 9.9666e-05 }, "provider": "TypeSafe" }, "elapsed_s": 1.3472525069955736 }, { "stage": "proposal", "candidate": null, "request": { "model": "typesafe/jev-1.13", "state": { "fen": "rn4n1/1p1bb2p/5kp1/3q4/8/8/PPP2PPP/R5K1 w - - 0 21", "board": "8 r n . . . . n .\n7 . p . b b . . p\n6 . . . . . k p .\n5 . . . q . . . .\n4 . . . . . . . .\n3 . . . . . . . .\n2 P P P . . P P P\n1 R . . . . . K .\n a b c d e f g h", "legend": "Uppercase = White, lowercase = Black. P pawn, N knight, B bishop, R rook, Q queen, K king; . empty.", "you_play": "White", "in_check": false, "history_uci": [ "g1f3", "a7a5", "b1c3", "f7f5", "d2d4", "e8f7", "e2e3", "c7c6", "f1c4", "d7d5", "e1g1", "d5c4", "f3e5", "f7f6", "e5c4", "c8e6", "c3d5", "d8d5", "c4a5", "d5a5", "c1d2", "a5d8", "f1e1", "d8d6", "d2c3", "g7g6", "e3e4", "f5e4", "d4d5", "f6g5", "c3h8", "c6d5", "e1e4", "e6d7", "h8f6", "g5f6", "e4e7", "f8e7", "d1d5", "d6d5" ], "history_san": [ "Nf3", "a5", "Nc3", "f5", "d4", "Kf7", "e3", "c6", "Bc4+", "d5", "O-O", "dxc4", "Ne5+", "Kf6", "Nxc4", "Be6", "Nd5+", "Qxd5", "Nxa5", "Qxa5", "Bd2", "Qd8", "Re1", "Qd6", "Bc3", "g6", "e4", "fxe4", "d5+", "Kg5", "Bxh8", "cxd5", "Rxe4", "Bd7", "Bf6+", "Kxf6", "Rxe7", "Bxe7", "Qxd5", "Qxd5" ], "pieces": { "white": { "a1": "rook", "g1": "king", "a2": "pawn", "b2": "pawn", "c2": "pawn", "f2": "pawn", "g2": "pawn", "h2": "pawn" }, "black": { "d5": "queen", "f6": "king", "g6": "pawn", "b7": "pawn", "d7": "bishop", "e7": "bishop", "h7": "pawn", "a8": "rook", "b8": "knight", "g8": "knight" } } }, "questions": { "move": { "type": "choice", "instructions": "Choose one legal White move. You alone evaluate the moves; their list is unranked. Use the explicit piece locations to check the destination and any lines opened by moving. First consider whether Black can capture your queen, rook or minor pieces after the move. Count both sides of an exchange: pawn=1, knight/bishop=3, rook=5, queen=9. Prefer keeping material unless you can establish a concrete profitable continuation. Giving check is NOT compensation for losing a piece. When no tactic works, develop or improve a safe piece. Protect your king and aim for checkmate. Read the history to avoid purposeless repeats when ahead; a draw can be useful when losing. Return one offered UCI move.", "criteria": { "a1b1": "rook a1 to b1; SAN Rb1", "a1c1": "rook a1 to c1; SAN Rc1", "a1d1": "rook a1 to d1; SAN Rd1", "a1e1": "rook a1 to e1; SAN Re1", "a1f1": "rook a1 to f1; SAN Rf1", "a2a3": "pawn a2 to a3; SAN a3", "a2a4": "pawn a2 to a4; SAN a4", "b2b3": "pawn b2 to b3; SAN b3", "b2b4": "pawn b2 to b4; SAN b4", "c2c3": "pawn c2 to c3; SAN c3", "c2c4": "pawn c2 to c4; SAN c4", "f2f3": "pawn f2 to f3; SAN f3", "f2f4": "pawn f2 to f4; SAN f4", "g1f1": "king g1 to f1; SAN Kf1", "g1h1": "king g1 to h1; SAN Kh1", "g2g3": "pawn g2 to g3; SAN g3", "g2g4": "pawn g2 to g4; SAN g4", "h2h3": "pawn h2 to h3; SAN h3", "h2h4": "pawn h2 to h4; SAN h4" } } } }, "safety": null, "turn": 21, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "move": { "type": "choice", "choice": "a1d1", "probabilities": { "h2h4": 0.01, "c2c3": 0.06, "a1c1": 0.06, "a1f1": 0.08, "b2b3": 0.04, "c2c4": 0.05, "f2f3": 0.03, "g2g3": 0.03, "f2f4": 0.02, "a1b1": 0.06, "g1h1": 0.06, "b2b4": 0.02, "a2a4": 0.04, "h2h3": 0.02, "a2a3": 0.06, "g2g4": 0.01, "g1f1": 0.12, "a1d1": 0.12, "a1e1": 0.11 }, "confidence": 0.06 } }, "usage": { "input_tokens": 1786, "output_tokens": 210, "cost": 7.5012e-05 }, "provider": "TypeSafe" }, "elapsed_s": 1.3606463270261884 }, { "stage": "review", "candidate": "a1d1", "request": { "model": "typesafe/jev-1.13", "state": { "before": { "fen": "rn4n1/1p1bb2p/5kp1/3q4/8/8/PPP2PPP/R5K1 w - - 0 21", "side_to_move": "white", "pieces": { "a1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "d5": "black queen", "f6": "black king", "g6": "black pawn", "b7": "black pawn", "d7": "black bishop", "e7": "black bishop", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "g8": "black knight" }, "in_check": false, "terminal": false }, "candidate": { "uci": "a1d1", "san": "Rd1" }, "after": { "fen": "rn4n1/1p1bb2p/5kp1/3q4/8/8/PPP2PPP/3R2K1 b - - 1 21", "side_to_move": "black", "pieces": { "d1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "d5": "black queen", "f6": "black king", "g6": "black pawn", "b7": "black pawn", "d7": "black bishop", "e7": "black bishop", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "g8": "black knight" }, "in_check": false, "terminal": false } }, "questions": { "loses_material": { "type": "noul", "instructions": "After the candidate White move, can Black force a net material gain soon? Check legal captures, recaptures and attacks on ALL White pieces. A fair exchange is not a loss; merely being attacked is not enough. Assess from White perspective." }, "allows_mate": { "type": "noul", "instructions": "Can Black checkmate White on its very next move in the after position?" }, "quality": { "type": "score", "instructions": "Evaluate the candidate for White after Black responds strongly. Do not reward a check that sacrifices material without compensation.", "criteria": [ "Losing blunder", "Dubious or wasteful", "Playable", "Good", "Winning or excellent" ] }, "black_reply": { "type": "choice", "instructions": "Play Black in the AFTER position. Choose the strongest reply to punish White, especially hanging pieces or checkmate. Every offered move is legal.", "criteria": { "a8a2": "Rxa2", "a8a3": "Ra3", "a8a4": "Ra4", "a8a5": "Ra5", "a8a6": "Ra6", "a8a7": "Ra7", "b7b5": "b5", "b7b6": "b6", "b8a6": "Na6", "b8c6": "Nc6", "d5a2": "Qxa2", "d5a5": "Qa5", "d5b3": "Qb3", "d5b5": "Qb5", "d5c4": "Qc4", "d5c5": "Qc5", "d5c6": "Qc6", "d5d1": "Qxd1#", "d5d2": "Qd2", "d5d3": "Qd3", "d5d4": "Qd4", "d5d6": "Qd6", "d5e4": "Qe4", "d5e5": "Qe5", "d5e6": "Qe6", "d5f3": "Qf3", "d5f5": "Qf5", "d5f7": "Qf7", "d5g2": "Qxg2+", "d5g5": "Qg5", "d5h5": "Qh5", "d7a4": "Ba4", "d7b5": "Bb5", "d7c6": "Bc6", "d7c8": "Bc8", "d7e6": "Be6", "d7e8": "Be8", "d7f5": "Bf5", "d7g4": "Bg4", "d7h3": "Bh3", "e7a3": "Ba3", "e7b4": "Bb4", "e7c5": "Bc5", "e7d6": "Bd6", "e7d8": "Bd8", "e7f8": "Bf8", "f6e5": "Ke5", "f6e6": "Ke6", "f6f5": "Kf5", "f6f7": "Kf7", "f6g5": "Kg5", "f6g7": "Kg7", "g6g5": "g5", "g8h6": "Nh6", "h7h5": "h5", "h7h6": "h6" } } } }, "safety": null, "turn": 21, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "loses_material": { "type": "noul", "noul": 0.53 }, "allows_mate": { "type": "noul", "noul": 0.41 }, "quality": { "type": "score", "score": 1.49, "legend": { "0": "Losing blunder", "1": "Dubious or wasteful", "2": "Playable", "3": "Good", "4": "Winning or excellent" }, "probabilities": { "0": 0.19, "1": 0.38, "2": 0.24, "3": 0.15, "4": 0.04 }, "confidence": 0.28 }, "black_reply": { "type": "choice", "choice": "d5d1", "probabilities": { "d7c6": 0, "d7f5": 0, "d5f7": 0, "d5f3": 0, "d5d3": 0, "f6g5": 0, "a8a2": 0, "e7d8": 0, "f6f5": 0, "f6f7": 0, "f6e6": 0, "d5f5": 0, "d5a5": 0, "d5b5": 0, "d5a2": 0, "g6g5": 0, "d7g4": 0, "a8a3": 0, "d5h5": 0, "a8a5": 0, "a8a7": 0, "d5d4": 0, "e7d6": 0, "d7h3": 0, "a8a6": 0, "d7c8": 0, "e7b4": 0, "f6e5": 0, "f6g7": 0, "b7b6": 0, "d7a4": 0, "b7b5": 0, "e7a3": 0, "d5c6": 0, "d5g2": 0.02, "d7e8": 0, "d7b5": 0, "d5e6": 0, "b8a6": 0, "d5b3": 0, "d5d2": 0, "e7c5": 0, "g8h6": 0, "a8a4": 0, "d5d6": 0, "h7h5": 0, "d5e5": 0, "d5c5": 0, "d5c4": 0, "d5g5": 0, "d7e6": 0, "h7h6": 0, "e7f8": 0, "b8c6": 0, "d5d1": 0.98, "d5e4": 0 }, "confidence": 0.97 } }, "usage": { "input_tokens": 1932, "output_tokens": 630, "cost": 8.1144e-05 }, "provider": "TypeSafe" }, "elapsed_s": 1.8294556009350345 }, { "stage": "review", "candidate": "g1f1", "request": { "model": "typesafe/jev-1.13", "state": { "before": { "fen": "rn4n1/1p1bb2p/5kp1/3q4/8/8/PPP2PPP/R5K1 w - - 0 21", "side_to_move": "white", "pieces": { "a1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "d5": "black queen", "f6": "black king", "g6": "black pawn", "b7": "black pawn", "d7": "black bishop", "e7": "black bishop", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "g8": "black knight" }, "in_check": false, "terminal": false }, "candidate": { "uci": "g1f1", "san": "Kf1" }, "after": { "fen": "rn4n1/1p1bb2p/5kp1/3q4/8/8/PPP2PPP/R4K2 b - - 1 21", "side_to_move": "black", "pieces": { "a1": "white rook", "f1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "d5": "black queen", "f6": "black king", "g6": "black pawn", "b7": "black pawn", "d7": "black bishop", "e7": "black bishop", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "g8": "black knight" }, "in_check": false, "terminal": false } }, "questions": { "loses_material": { "type": "noul", "instructions": "After the candidate White move, can Black force a net material gain soon? Check legal captures, recaptures and attacks on ALL White pieces. A fair exchange is not a loss; merely being attacked is not enough. Assess from White perspective." }, "allows_mate": { "type": "noul", "instructions": "Can Black checkmate White on its very next move in the after position?" }, "quality": { "type": "score", "instructions": "Evaluate the candidate for White after Black responds strongly. Do not reward a check that sacrifices material without compensation.", "criteria": [ "Losing blunder", "Dubious or wasteful", "Playable", "Good", "Winning or excellent" ] }, "black_reply": { "type": "choice", "instructions": "Play Black in the AFTER position. Choose the strongest reply to punish White, especially hanging pieces or checkmate. Every offered move is legal.", "criteria": { "a8a2": "Rxa2", "a8a3": "Ra3", "a8a4": "Ra4", "a8a5": "Ra5", "a8a6": "Ra6", "a8a7": "Ra7", "b7b5": "b5", "b7b6": "b6", "b8a6": "Na6", "b8c6": "Nc6", "d5a2": "Qxa2", "d5a5": "Qa5", "d5b3": "Qb3", "d5b5": "Qb5+", "d5c4": "Qc4+", "d5c5": "Qc5", "d5c6": "Qc6", "d5d1": "Qd1+", "d5d2": "Qd2", "d5d3": "Qd3+", "d5d4": "Qd4", "d5d6": "Qd6", "d5e4": "Qe4", "d5e5": "Qe5", "d5e6": "Qe6", "d5f3": "Qf3", "d5f5": "Qf5", "d5f7": "Qf7", "d5g2": "Qxg2+", "d5g5": "Qg5", "d5h5": "Qh5", "d7a4": "Ba4", "d7b5": "Bb5+", "d7c6": "Bc6", "d7c8": "Bc8", "d7e6": "Be6", "d7e8": "Be8", "d7f5": "Bf5", "d7g4": "Bg4", "d7h3": "Bh3", "e7a3": "Ba3", "e7b4": "Bb4", "e7c5": "Bc5", "e7d6": "Bd6", "e7d8": "Bd8", "e7f8": "Bf8", "f6e5": "Ke5", "f6e6": "Ke6", "f6f5": "Kf5", "f6f7": "Kf7", "f6g5": "Kg5", "f6g7": "Kg7", "g6g5": "g5", "g8h6": "Nh6", "h7h5": "h5", "h7h6": "h6" } } } }, "safety": null, "turn": 21, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "loses_material": { "type": "noul", "noul": 0.48 }, "allows_mate": { "type": "noul", "noul": 0.35 }, "quality": { "type": "score", "score": 1.37, "legend": { "0": "Losing blunder", "1": "Dubious or wasteful", "2": "Playable", "3": "Good", "4": "Winning or excellent" }, "probabilities": { "0": 0.13, "1": 0.47000000000000003, "2": 0.31, "3": 0.08, "4": 0.01 }, "confidence": 0.47 }, "black_reply": { "type": "choice", "choice": "d5g2", "probabilities": { "d5f7": 0.01, "d5e5": 0, "d5a5": 0.01, "d5d6": 0, "h7h6": 0, "d5d2": 0.03, "d5d1": 0.21000000000000002, "e7b4": 0, "e7a3": 0, "d5c5": 0, "b8a6": 0, "d7g4": 0, "g6g5": 0, "a8a7": 0, "d7a4": 0, "f6g7": 0, "d5e4": 0.01, "d5f3": 0.04, "b8c6": 0, "d7h3": 0, "d5c6": 0, "d7f5": 0, "g8h6": 0, "a8a2": 0.09999999999999999, "d5g5": 0, "d5d3": 0.04, "e7c5": 0, "d5e6": 0.01, "a8a5": 0, "e7d8": 0, "b7b6": 0, "d7e8": 0, "d5b5": 0.04, "h7h5": 0, "d7e6": 0, "a8a6": 0, "d7c6": 0, "b7b5": 0, "e7f8": 0, "d5b3": 0.01, "a8a3": 0.01, "d7c8": 0, "d5h5": 0.02, "d5a2": 0.18000000000000002, "a8a4": 0, "d7b5": 0.02, "d5c4": 0.02, "d5g2": 0.22, "f6g5": 0, "d5f5": 0.01, "e7d6": 0, "f6f5": 0, "d5d4": 0, "f6e6": 0, "f6e5": 0, "f6f7": 0 }, "confidence": 0.2 } }, "usage": { "input_tokens": 1935, "output_tokens": 630, "cost": 8.127e-05 }, "provider": "TypeSafe" }, "elapsed_s": 1.4660012179519981 }, { "stage": "review", "candidate": "a1e1", "request": { "model": "typesafe/jev-1.13", "state": { "before": { "fen": "rn4n1/1p1bb2p/5kp1/3q4/8/8/PPP2PPP/R5K1 w - - 0 21", "side_to_move": "white", "pieces": { "a1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "d5": "black queen", "f6": "black king", "g6": "black pawn", "b7": "black pawn", "d7": "black bishop", "e7": "black bishop", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "g8": "black knight" }, "in_check": false, "terminal": false }, "candidate": { "uci": "a1e1", "san": "Re1" }, "after": { "fen": "rn4n1/1p1bb2p/5kp1/3q4/8/8/PPP2PPP/4R1K1 b - - 1 21", "side_to_move": "black", "pieces": { "e1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "d5": "black queen", "f6": "black king", "g6": "black pawn", "b7": "black pawn", "d7": "black bishop", "e7": "black bishop", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "g8": "black knight" }, "in_check": false, "terminal": false } }, "questions": { "loses_material": { "type": "noul", "instructions": "After the candidate White move, can Black force a net material gain soon? Check legal captures, recaptures and attacks on ALL White pieces. A fair exchange is not a loss; merely being attacked is not enough. Assess from White perspective." }, "allows_mate": { "type": "noul", "instructions": "Can Black checkmate White on its very next move in the after position?" }, "quality": { "type": "score", "instructions": "Evaluate the candidate for White after Black responds strongly. Do not reward a check that sacrifices material without compensation.", "criteria": [ "Losing blunder", "Dubious or wasteful", "Playable", "Good", "Winning or excellent" ] }, "black_reply": { "type": "choice", "instructions": "Play Black in the AFTER position. Choose the strongest reply to punish White, especially hanging pieces or checkmate. Every offered move is legal.", "criteria": { "a8a2": "Rxa2", "a8a3": "Ra3", "a8a4": "Ra4", "a8a5": "Ra5", "a8a6": "Ra6", "a8a7": "Ra7", "b7b5": "b5", "b7b6": "b6", "b8a6": "Na6", "b8c6": "Nc6", "d5a2": "Qxa2", "d5a5": "Qa5", "d5b3": "Qb3", "d5b5": "Qb5", "d5c4": "Qc4", "d5c5": "Qc5", "d5c6": "Qc6", "d5d1": "Qd1", "d5d2": "Qd2", "d5d3": "Qd3", "d5d4": "Qd4", "d5d6": "Qd6", "d5e4": "Qe4", "d5e5": "Qe5", "d5e6": "Qe6", "d5f3": "Qf3", "d5f5": "Qf5", "d5f7": "Qf7", "d5g2": "Qxg2+", "d5g5": "Qg5", "d5h5": "Qh5", "d7a4": "Ba4", "d7b5": "Bb5", "d7c6": "Bc6", "d7c8": "Bc8", "d7e6": "Be6", "d7e8": "Be8", "d7f5": "Bf5", "d7g4": "Bg4", "d7h3": "Bh3", "e7a3": "Ba3", "e7b4": "Bb4", "e7c5": "Bc5", "e7d6": "Bd6", "e7d8": "Bd8", "e7f8": "Bf8", "f6f5": "Kf5", "f6f7": "Kf7", "f6g5": "Kg5", "f6g7": "Kg7", "g6g5": "g5", "g8h6": "Nh6", "h7h5": "h5", "h7h6": "h6" } } } }, "safety": null, "turn": 21, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "loses_material": { "type": "noul", "noul": 0.49 }, "allows_mate": { "type": "noul", "noul": 0.36 }, "quality": { "type": "score", "score": 1.51, "legend": { "0": "Losing blunder", "1": "Dubious or wasteful", "2": "Playable", "3": "Good", "4": "Winning or excellent" }, "probabilities": { "0": 0.14, "1": 0.39999999999999997, "2": 0.29, "3": 0.14, "4": 0.03 }, "confidence": 0.35 }, "black_reply": { "type": "choice", "choice": "d5g2", "probabilities": { "f6f7": 0, "d5e4": 0.02, "d7f5": 0, "e7c5": 0, "d5h5": 0.01, "d7c6": 0, "e7d6": 0, "h7h5": 0, "a8a5": 0, "h7h6": 0, "a8a4": 0, "d5e5": 0.01, "f6f5": 0, "d5c4": 0, "d5f7": 0.01, "b7b5": 0, "d5f3": 0.04, "d5g2": 0.41000000000000003, "a8a2": 0.09, "d7g4": 0, "a8a7": 0, "a8a3": 0, "d5d6": 0, "d7e8": 0, "a8a6": 0, "f6g5": 0.01, "f6g7": 0, "d5g5": 0.01, "e7a3": 0, "e7b4": 0, "d5c6": 0, "d5f5": 0.01, "b8a6": 0, "d5d2": 0.02, "b8c6": 0.01, "d7a4": 0, "d5a5": 0.01, "d7e6": 0, "d5c5": 0, "g8h6": 0, "d5b5": 0.01, "d5b3": 0.01, "d5a2": 0.16, "d5e6": 0.02, "d5d4": 0.01, "g6g5": 0, "d7c8": 0, "d5d1": 0.11, "b7b6": 0, "e7d8": 0, "d7b5": 0, "d7h3": 0, "d5d3": 0.01, "e7f8": 0 }, "confidence": 0.38 } }, "usage": { "input_tokens": 1899, "output_tokens": 610, "cost": 7.9758e-05 }, "provider": "TypeSafe" }, "elapsed_s": 1.7652231199899688 }, { "stage": "selection", "candidate": null, "request": { "model": "typesafe/jev-1.13", "state": { "position": { "fen": "rn4n1/1p1bb2p/5kp1/3q4/8/8/PPP2PPP/R5K1 w - - 0 21", "board": "8 r n . . . . n .\n7 . p . b b . . p\n6 . . . . . k p .\n5 . . . q . . . .\n4 . . . . . . . .\n3 . . . . . . . .\n2 P P P . . P P P\n1 R . . . . . K .\n a b c d e f g h", "legend": "Uppercase = White, lowercase = Black. P pawn, N knight, B bishop, R rook, Q queen, K king; . empty.", "you_play": "White", "in_check": false, "history_uci": [ "g1f3", "a7a5", "b1c3", "f7f5", "d2d4", "e8f7", "e2e3", "c7c6", "f1c4", "d7d5", "e1g1", "d5c4", "f3e5", "f7f6", "e5c4", "c8e6", "c3d5", "d8d5", "c4a5", "d5a5", "c1d2", "a5d8", "f1e1", "d8d6", "d2c3", "g7g6", "e3e4", "f5e4", "d4d5", "f6g5", "c3h8", "c6d5", "e1e4", "e6d7", "h8f6", "g5f6", "e4e7", "f8e7", "d1d5", "d6d5" ], "history_san": [ "Nf3", "a5", "Nc3", "f5", "d4", "Kf7", "e3", "c6", "Bc4+", "d5", "O-O", "dxc4", "Ne5+", "Kf6", "Nxc4", "Be6", "Nd5+", "Qxd5", "Nxa5", "Qxa5", "Bd2", "Qd8", "Re1", "Qd6", "Bc3", "g6", "e4", "fxe4", "d5+", "Kg5", "Bxh8", "cxd5", "Rxe4", "Bd7", "Bf6+", "Kxf6", "Rxe7", "Bxe7", "Qxd5", "Qxd5" ], "pieces": { "white": { "a1": "rook", "g1": "king", "a2": "pawn", "b2": "pawn", "c2": "pawn", "f2": "pawn", "g2": "pawn", "h2": "pawn" }, "black": { "d5": "queen", "f6": "king", "g6": "pawn", "b7": "pawn", "d7": "bishop", "e7": "bishop", "h7": "pawn", "a8": "rook", "b8": "knight", "g8": "knight" } } }, "reviews": [ { "uci": "a1d1", "proposal_probability": 0.12, "loss_probability": 0.53, "mate_probability": 0.41, "quality": 1.49, "black_reply": "d5d1", "after_model_reply": { "fen": "rn4n1/1p1bb2p/5kp1/8/8/8/PPP2PPP/3q2K1 w - - 0 22", "side_to_move": "white", "pieces": { "d1": "black queen", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "f6": "black king", "g6": "black pawn", "b7": "black pawn", "d7": "black bishop", "e7": "black bishop", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "g8": "black knight" }, "in_check": true, "terminal": true } }, { "uci": "g1f1", "proposal_probability": 0.12, "loss_probability": 0.48, "mate_probability": 0.35, "quality": 1.37, "black_reply": "d5g2", "after_model_reply": { "fen": "rn4n1/1p1bb2p/5kp1/8/8/8/PPP2PqP/R4K2 w - - 0 22", "side_to_move": "white", "pieces": { "a1": "white rook", "f1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "black queen", "h2": "white pawn", "f6": "black king", "g6": "black pawn", "b7": "black pawn", "d7": "black bishop", "e7": "black bishop", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "g8": "black knight" }, "in_check": true, "terminal": false } }, { "uci": "a1e1", "proposal_probability": 0.11, "loss_probability": 0.49, "mate_probability": 0.36, "quality": 1.51, "black_reply": "d5g2", "after_model_reply": { "fen": "rn4n1/1p1bb2p/5kp1/8/8/8/PPP2PqP/4R1K1 w - - 0 22", "side_to_move": "white", "pieces": { "e1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "black queen", "h2": "white pawn", "f6": "black king", "g6": "black pawn", "b7": "black pawn", "d7": "black bishop", "e7": "black bishop", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "g8": "black knight" }, "in_check": true, "terminal": false } } ], "warning": "Reviews and Black replies are fallible predictions of the same Jev model, not verified engine evaluations." }, "questions": { "move": { "type": "choice", "instructions": "Choose the best White move from the reviewed candidates. Independently check each hypothetical Black reply, captures and recaptures. Prefer avoiding material loss, then useful progress and king safety. Reviews may be wrong. A high proposal probability does not prove a good move.", "criteria": { "a1d1": "rook a1 to d1; SAN Rd1", "g1f1": "king g1 to f1; SAN Kf1", "a1e1": "rook a1 to e1; SAN Re1" } } } }, "safety": null, "turn": 21, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "move": { "type": "choice", "choice": "a1e1", "probabilities": { "a1e1": 0.49, "g1f1": 0.41, "a1d1": 0.1 }, "confidence": 0.24 } }, "usage": { "input_tokens": 2297, "output_tokens": 50, "cost": 9.6474e-05 }, "provider": "TypeSafe" }, "elapsed_s": 1.5153407900361344 }, { "stage": "proposal", "candidate": null, "request": { "model": "typesafe/jev-1.13", "state": { "fen": "rn4n1/1p1b3p/3b1kp1/3q4/8/8/PPP2PPP/4R1K1 w - - 2 22", "board": "8 r n . . . . n .\n7 . p . b . . . p\n6 . . . b . k p .\n5 . . . q . . . .\n4 . . . . . . . .\n3 . . . . . . . .\n2 P P P . . P P P\n1 . . . . R . K .\n a b c d e f g h", "legend": "Uppercase = White, lowercase = Black. P pawn, N knight, B bishop, R rook, Q queen, K king; . empty.", "you_play": "White", "in_check": false, "history_uci": [ "g1f3", "a7a5", "b1c3", "f7f5", "d2d4", "e8f7", "e2e3", "c7c6", "f1c4", "d7d5", "e1g1", "d5c4", "f3e5", "f7f6", "e5c4", "c8e6", "c3d5", "d8d5", "c4a5", "d5a5", "c1d2", "a5d8", "f1e1", "d8d6", "d2c3", "g7g6", "e3e4", "f5e4", "d4d5", "f6g5", "c3h8", "c6d5", "e1e4", "e6d7", "h8f6", "g5f6", "e4e7", "f8e7", "d1d5", "d6d5", "a1e1", "e7d6" ], "history_san": [ "Nf3", "a5", "Nc3", "f5", "d4", "Kf7", "e3", "c6", "Bc4+", "d5", "O-O", "dxc4", "Ne5+", "Kf6", "Nxc4", "Be6", "Nd5+", "Qxd5", "Nxa5", "Qxa5", "Bd2", "Qd8", "Re1", "Qd6", "Bc3", "g6", "e4", "fxe4", "d5+", "Kg5", "Bxh8", "cxd5", "Rxe4", "Bd7", "Bf6+", "Kxf6", "Rxe7", "Bxe7", "Qxd5", "Qxd5", "Re1", "Bd6" ], "pieces": { "white": { "e1": "rook", "g1": "king", "a2": "pawn", "b2": "pawn", "c2": "pawn", "f2": "pawn", "g2": "pawn", "h2": "pawn" }, "black": { "d5": "queen", "d6": "bishop", "f6": "king", "g6": "pawn", "b7": "pawn", "d7": "bishop", "h7": "pawn", "a8": "rook", "b8": "knight", "g8": "knight" } } }, "questions": { "move": { "type": "choice", "instructions": "Choose one legal White move. You alone evaluate the moves; their list is unranked. Use the explicit piece locations to check the destination and any lines opened by moving. First consider whether Black can capture your queen, rook or minor pieces after the move. Count both sides of an exchange: pawn=1, knight/bishop=3, rook=5, queen=9. Prefer keeping material unless you can establish a concrete profitable continuation. Giving check is NOT compensation for losing a piece. When no tactic works, develop or improve a safe piece. Protect your king and aim for checkmate. Read the history to avoid purposeless repeats when ahead; a draw can be useful when losing. Return one offered UCI move.", "criteria": { "a2a3": "pawn a2 to a3; SAN a3", "a2a4": "pawn a2 to a4; SAN a4", "b2b3": "pawn b2 to b3; SAN b3", "b2b4": "pawn b2 to b4; SAN b4", "c2c3": "pawn c2 to c3; SAN c3", "c2c4": "pawn c2 to c4; SAN c4", "e1a1": "rook e1 to a1; SAN Ra1", "e1b1": "rook e1 to b1; SAN Rb1", "e1c1": "rook e1 to c1; SAN Rc1", "e1d1": "rook e1 to d1; SAN Rd1", "e1e2": "rook e1 to e2; SAN Re2", "e1e3": "rook e1 to e3; SAN Re3", "e1e4": "rook e1 to e4; SAN Re4", "e1e5": "rook e1 to e5; SAN Re5", "e1e6": "rook e1 to e6; SAN Re6+", "e1e7": "rook e1 to e7; SAN Re7", "e1e8": "rook e1 to e8; SAN Re8", "e1f1": "rook e1 to f1; SAN Rf1", "f2f3": "pawn f2 to f3; SAN f3", "f2f4": "pawn f2 to f4; SAN f4", "g1f1": "king g1 to f1; SAN Kf1", "g1h1": "king g1 to h1; SAN Kh1", "g2g3": "pawn g2 to g3; SAN g3", "g2g4": "pawn g2 to g4; SAN g4", "h2h3": "pawn h2 to h3; SAN h3", "h2h4": "pawn h2 to h4; SAN h4" } } } }, "safety": null, "turn": 22, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "move": { "type": "choice", "choice": "e1e6", "probabilities": { "g2g4": 0.01, "g2g3": 0.02, "f2f4": 0.01, "c2c4": 0.02, "b2b3": 0.02, "e1e6": 0.13, "c2c3": 0.02, "e1e8": 0.07, "e1c1": 0.04, "a2a3": 0.02, "g1h1": 0.03, "e1e2": 0.04, "e1f1": 0.06, "e1e5": 0.04, "e1d1": 0.11, "e1e3": 0.03, "h2h3": 0.01, "h2h4": 0.01, "b2b4": 0.01, "e1a1": 0.07, "e1b1": 0.04, "a2a4": 0.02, "g1f1": 0.07, "e1e7": 0.05, "e1e4": 0.04, "f2f3": 0.01 }, "confidence": 0.1 } }, "usage": { "input_tokens": 1990, "output_tokens": 280, "cost": 8.358e-05 }, "provider": "TypeSafe" }, "elapsed_s": 1.5875045880675316 }, { "stage": "review", "candidate": "e1e6", "request": { "model": "typesafe/jev-1.13", "state": { "before": { "fen": "rn4n1/1p1b3p/3b1kp1/3q4/8/8/PPP2PPP/4R1K1 w - - 2 22", "side_to_move": "white", "pieces": { "e1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "d5": "black queen", "d6": "black bishop", "f6": "black king", "g6": "black pawn", "b7": "black pawn", "d7": "black bishop", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "g8": "black knight" }, "in_check": false, "terminal": false }, "candidate": { "uci": "e1e6", "san": "Re6+" }, "after": { "fen": "rn4n1/1p1b3p/3bRkp1/3q4/8/8/PPP2PPP/6K1 b - - 3 22", "side_to_move": "black", "pieces": { "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "d5": "black queen", "d6": "black bishop", "e6": "white rook", "f6": "black king", "g6": "black pawn", "b7": "black pawn", "d7": "black bishop", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "g8": "black knight" }, "in_check": true, "terminal": false } }, "questions": { "loses_material": { "type": "noul", "instructions": "After the candidate White move, can Black force a net material gain soon? Check legal captures, recaptures and attacks on ALL White pieces. A fair exchange is not a loss; merely being attacked is not enough. Assess from White perspective." }, "allows_mate": { "type": "noul", "instructions": "Can Black checkmate White on its very next move in the after position?" }, "quality": { "type": "score", "instructions": "Evaluate the candidate for White after Black responds strongly. Do not reward a check that sacrifices material without compensation.", "criteria": [ "Losing blunder", "Dubious or wasteful", "Playable", "Good", "Winning or excellent" ] }, "black_reply": { "type": "choice", "instructions": "Play Black in the AFTER position. Choose the strongest reply to punish White, especially hanging pieces or checkmate. Every offered move is legal.", "criteria": { "d5e6": "Qxe6", "d7e6": "Bxe6", "f6e6": "Kxe6", "f6f5": "Kf5", "f6f7": "Kf7", "f6g5": "Kg5", "f6g7": "Kg7" } } } }, "safety": null, "turn": 22, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "loses_material": { "type": "noul", "noul": 0.55 }, "allows_mate": { "type": "noul", "noul": 0.33 }, "quality": { "type": "score", "score": 1.51, "legend": { "0": "Losing blunder", "1": "Dubious or wasteful", "2": "Playable", "3": "Good", "4": "Winning or excellent" }, "probabilities": { "0": 0.31, "1": 0.26, "2": 0.15, "3": 0.18, "4": 0.1 }, "confidence": 0 }, "black_reply": { "type": "choice", "choice": "d5e6", "probabilities": { "f6f7": 0.03, "f6f5": 0.03, "f6g7": 0.06, "d7e6": 0.17, "f6e6": 0.15, "f6g5": 0.03, "d5e6": 0.53 }, "confidence": 0.44 } }, "usage": { "input_tokens": 1134, "output_tokens": 140, "cost": 4.7628e-05 }, "provider": "TypeSafe" }, "elapsed_s": 1.736673380015418 }, { "stage": "review", "candidate": "e1d1", "request": { "model": "typesafe/jev-1.13", "state": { "before": { "fen": "rn4n1/1p1b3p/3b1kp1/3q4/8/8/PPP2PPP/4R1K1 w - - 2 22", "side_to_move": "white", "pieces": { "e1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "d5": "black queen", "d6": "black bishop", "f6": "black king", "g6": "black pawn", "b7": "black pawn", "d7": "black bishop", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "g8": "black knight" }, "in_check": false, "terminal": false }, "candidate": { "uci": "e1d1", "san": "Rd1" }, "after": { "fen": "rn4n1/1p1b3p/3b1kp1/3q4/8/8/PPP2PPP/3R2K1 b - - 3 22", "side_to_move": "black", "pieces": { "d1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "d5": "black queen", "d6": "black bishop", "f6": "black king", "g6": "black pawn", "b7": "black pawn", "d7": "black bishop", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "g8": "black knight" }, "in_check": false, "terminal": false } }, "questions": { "loses_material": { "type": "noul", "instructions": "After the candidate White move, can Black force a net material gain soon? Check legal captures, recaptures and attacks on ALL White pieces. A fair exchange is not a loss; merely being attacked is not enough. Assess from White perspective." }, "allows_mate": { "type": "noul", "instructions": "Can Black checkmate White on its very next move in the after position?" }, "quality": { "type": "score", "instructions": "Evaluate the candidate for White after Black responds strongly. Do not reward a check that sacrifices material without compensation.", "criteria": [ "Losing blunder", "Dubious or wasteful", "Playable", "Good", "Winning or excellent" ] }, "black_reply": { "type": "choice", "instructions": "Play Black in the AFTER position. Choose the strongest reply to punish White, especially hanging pieces or checkmate. Every offered move is legal.", "criteria": { "a8a2": "Rxa2", "a8a3": "Ra3", "a8a4": "Ra4", "a8a5": "Ra5", "a8a6": "Ra6", "a8a7": "Ra7", "b7b5": "b5", "b7b6": "b6", "b8a6": "Na6", "b8c6": "Nc6", "d5a2": "Qxa2", "d5a5": "Qa5", "d5b3": "Qb3", "d5b5": "Qb5", "d5c4": "Qc4", "d5c5": "Qc5", "d5c6": "Qc6", "d5d1": "Qxd1#", "d5d2": "Qd2", "d5d3": "Qd3", "d5d4": "Qd4", "d5e4": "Qe4", "d5e5": "Qe5", "d5e6": "Qe6", "d5f3": "Qf3", "d5f5": "Qf5", "d5f7": "Qf7", "d5g2": "Qxg2+", "d5g5": "Qg5", "d5h5": "Qh5", "d6a3": "Ba3", "d6b4": "Bb4", "d6c5": "Bc5", "d6c7": "Bc7", "d6e5": "Be5", "d6e7": "Be7", "d6f4": "Bf4", "d6f8": "Bf8", "d6g3": "Bg3", "d6h2": "Bxh2+", "d7a4": "Ba4", "d7b5": "Bb5", "d7c6": "Bc6", "d7c8": "Bc8", "d7e6": "Be6", "d7e8": "Be8", "d7f5": "Bf5", "d7g4": "Bg4", "d7h3": "Bh3", "f6e5": "Ke5", "f6e6": "Ke6", "f6e7": "Ke7", "f6f5": "Kf5", "f6f7": "Kf7", "f6g5": "Kg5", "f6g7": "Kg7", "g6g5": "g5", "g8e7": "Ne7", "g8h6": "Nh6", "h7h5": "h5", "h7h6": "h6" } } } }, "safety": null, "turn": 22, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "loses_material": { "type": "noul", "noul": 0.56 }, "allows_mate": { "type": "noul", "noul": 0.42 }, "quality": { "type": "score", "score": 1.3, "legend": { "0": "Losing blunder", "1": "Dubious or wasteful", "2": "Playable", "3": "Good", "4": "Winning or excellent" }, "probabilities": { "0": 0.23, "1": 0.41000000000000003, "2": 0.22, "3": 0.11, "4": 0.03 }, "confidence": 0.36 }, "black_reply": { "type": "choice", "choice": "d5d1", "probabilities": { "d5h5": 0, "g8e7": 0, "d6b4": 0, "d6g3": 0, "d6h2": 0, "d7f5": 0, "f6e5": 0, "a8a6": 0, "d7b5": 0, "d6e5": 0, "d5a5": 0, "b8c6": 0, "d5c4": 0, "f6f7": 0, "d5f3": 0, "d6c5": 0, "b8a6": 0, "a8a7": 0, "d5a2": 0, "d7e6": 0, "d5f5": 0, "d5e5": 0, "d6a3": 0, "d6f4": 0, "d5d2": 0, "d7c8": 0, "b7b5": 0, "d7c6": 0, "a8a5": 0, "d5d1": 0.96, "d5b5": 0, "d5g5": 0, "d5b3": 0, "f6g5": 0, "d6c7": 0, "f6e7": 0, "a8a4": 0, "d5d3": 0, "f6g7": 0, "d5d4": 0, "d7e8": 0, "g8h6": 0, "d7g4": 0, "a8a3": 0, "h7h5": 0.01, "d5e6": 0, "b7b6": 0, "f6e6": 0, "d5c6": 0, "h7h6": 0.01, "d7h3": 0, "d5f7": 0, "d7a4": 0, "d5c5": 0, "d6f8": 0, "d5g2": 0.02, "f6f5": 0, "d5e4": 0, "d6e7": 0, "g6g5": 0, "a8a2": 0 }, "confidence": 0.95 } }, "usage": { "input_tokens": 2020, "output_tokens": 680, "cost": 8.484e-05 }, "provider": "TypeSafe" }, "elapsed_s": 1.3878238749457523 }, { "stage": "review", "candidate": "e1a1", "request": { "model": "typesafe/jev-1.13", "state": { "before": { "fen": "rn4n1/1p1b3p/3b1kp1/3q4/8/8/PPP2PPP/4R1K1 w - - 2 22", "side_to_move": "white", "pieces": { "e1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "d5": "black queen", "d6": "black bishop", "f6": "black king", "g6": "black pawn", "b7": "black pawn", "d7": "black bishop", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "g8": "black knight" }, "in_check": false, "terminal": false }, "candidate": { "uci": "e1a1", "san": "Ra1" }, "after": { "fen": "rn4n1/1p1b3p/3b1kp1/3q4/8/8/PPP2PPP/R5K1 b - - 3 22", "side_to_move": "black", "pieces": { "a1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "d5": "black queen", "d6": "black bishop", "f6": "black king", "g6": "black pawn", "b7": "black pawn", "d7": "black bishop", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "g8": "black knight" }, "in_check": false, "terminal": false } }, "questions": { "loses_material": { "type": "noul", "instructions": "After the candidate White move, can Black force a net material gain soon? Check legal captures, recaptures and attacks on ALL White pieces. A fair exchange is not a loss; merely being attacked is not enough. Assess from White perspective." }, "allows_mate": { "type": "noul", "instructions": "Can Black checkmate White on its very next move in the after position?" }, "quality": { "type": "score", "instructions": "Evaluate the candidate for White after Black responds strongly. Do not reward a check that sacrifices material without compensation.", "criteria": [ "Losing blunder", "Dubious or wasteful", "Playable", "Good", "Winning or excellent" ] }, "black_reply": { "type": "choice", "instructions": "Play Black in the AFTER position. Choose the strongest reply to punish White, especially hanging pieces or checkmate. Every offered move is legal.", "criteria": { "a8a2": "Rxa2", "a8a3": "Ra3", "a8a4": "Ra4", "a8a5": "Ra5", "a8a6": "Ra6", "a8a7": "Ra7", "b7b5": "b5", "b7b6": "b6", "b8a6": "Na6", "b8c6": "Nc6", "d5a2": "Qxa2", "d5a5": "Qa5", "d5b3": "Qb3", "d5b5": "Qb5", "d5c4": "Qc4", "d5c5": "Qc5", "d5c6": "Qc6", "d5d1": "Qd1+", "d5d2": "Qd2", "d5d3": "Qd3", "d5d4": "Qd4", "d5e4": "Qe4", "d5e5": "Qe5", "d5e6": "Qe6", "d5f3": "Qf3", "d5f5": "Qf5", "d5f7": "Qf7", "d5g2": "Qxg2+", "d5g5": "Qg5", "d5h5": "Qh5", "d6a3": "Ba3", "d6b4": "Bb4", "d6c5": "Bc5", "d6c7": "Bc7", "d6e5": "Be5", "d6e7": "Be7", "d6f4": "Bf4", "d6f8": "Bf8", "d6g3": "Bg3", "d6h2": "Bxh2+", "d7a4": "Ba4", "d7b5": "Bb5", "d7c6": "Bc6", "d7c8": "Bc8", "d7e6": "Be6", "d7e8": "Be8", "d7f5": "Bf5", "d7g4": "Bg4", "d7h3": "Bh3", "f6e5": "Ke5", "f6e6": "Ke6", "f6e7": "Ke7", "f6f5": "Kf5", "f6f7": "Kf7", "f6g5": "Kg5", "f6g7": "Kg7", "g6g5": "g5", "g8e7": "Ne7", "g8h6": "Nh6", "h7h5": "h5", "h7h6": "h6" } } } }, "safety": null, "turn": 22, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "loses_material": { "type": "noul", "noul": 0.46 }, "allows_mate": { "type": "noul", "noul": 0.3 }, "quality": { "type": "score", "score": 1.36, "legend": { "0": "Losing blunder", "1": "Dubious or wasteful", "2": "Playable", "3": "Good", "4": "Winning or excellent" }, "probabilities": { "0": 0.15, "1": 0.5, "2": 0.21, "3": 0.11, "4": 0.03 }, "confidence": 0.45 }, "black_reply": { "type": "choice", "choice": "d5g2", "probabilities": { "g8e7": 0, "d5h5": 0, "d6b4": 0, "d6g3": 0.02, "d6h2": 0.06999999999999999, "d7f5": 0, "f6e5": 0, "a8a6": 0, "d7b5": 0, "d6e5": 0, "d5c4": 0, "b8c6": 0, "f6f7": 0, "d5a5": 0.01, "d5f3": 0.02, "d6c5": 0, "b8a6": 0, "a8a7": 0, "d5a2": 0.17, "d7e6": 0, "d5f5": 0, "d5e5": 0, "d5d2": 0.01, "d6f4": 0, "d7c8": 0, "d6a3": 0.02, "b7b5": 0, "d7c6": 0, "a8a5": 0, "d5d1": 0.08, "d6c7": 0, "d5g5": 0, "d5b3": 0.01, "f6g5": 0, "d5b5": 0, "f6e7": 0, "a8a4": 0.01, "d5d3": 0, "f6g7": 0, "d5d4": 0, "d7e8": 0, "d7g4": 0, "g8h6": 0, "b7b6": 0, "a8a3": 0, "d5e6": 0, "h7h5": 0, "f6e6": 0, "d5c6": 0, "h7h6": 0, "d7h3": 0, "d5f7": 0, "d5c5": 0, "d7a4": 0, "d6f8": 0, "d5g2": 0.47000000000000003, "f6f5": 0, "g6g5": 0, "d6e7": 0, "d5e4": 0, "a8a2": 0.09999999999999999 }, "confidence": 0.45 } }, "usage": { "input_tokens": 2018, "output_tokens": 680, "cost": 8.4756e-05 }, "provider": "TypeSafe" }, "elapsed_s": 1.3800246861064807 }, { "stage": "selection", "candidate": null, "request": { "model": "typesafe/jev-1.13", "state": { "position": { "fen": "rn4n1/1p1b3p/3b1kp1/3q4/8/8/PPP2PPP/4R1K1 w - - 2 22", "board": "8 r n . . . . n .\n7 . p . b . . . p\n6 . . . b . k p .\n5 . . . q . . . .\n4 . . . . . . . .\n3 . . . . . . . .\n2 P P P . . P P P\n1 . . . . R . K .\n a b c d e f g h", "legend": "Uppercase = White, lowercase = Black. P pawn, N knight, B bishop, R rook, Q queen, K king; . empty.", "you_play": "White", "in_check": false, "history_uci": [ "g1f3", "a7a5", "b1c3", "f7f5", "d2d4", "e8f7", "e2e3", "c7c6", "f1c4", "d7d5", "e1g1", "d5c4", "f3e5", "f7f6", "e5c4", "c8e6", "c3d5", "d8d5", "c4a5", "d5a5", "c1d2", "a5d8", "f1e1", "d8d6", "d2c3", "g7g6", "e3e4", "f5e4", "d4d5", "f6g5", "c3h8", "c6d5", "e1e4", "e6d7", "h8f6", "g5f6", "e4e7", "f8e7", "d1d5", "d6d5", "a1e1", "e7d6" ], "history_san": [ "Nf3", "a5", "Nc3", "f5", "d4", "Kf7", "e3", "c6", "Bc4+", "d5", "O-O", "dxc4", "Ne5+", "Kf6", "Nxc4", "Be6", "Nd5+", "Qxd5", "Nxa5", "Qxa5", "Bd2", "Qd8", "Re1", "Qd6", "Bc3", "g6", "e4", "fxe4", "d5+", "Kg5", "Bxh8", "cxd5", "Rxe4", "Bd7", "Bf6+", "Kxf6", "Rxe7", "Bxe7", "Qxd5", "Qxd5", "Re1", "Bd6" ], "pieces": { "white": { "e1": "rook", "g1": "king", "a2": "pawn", "b2": "pawn", "c2": "pawn", "f2": "pawn", "g2": "pawn", "h2": "pawn" }, "black": { "d5": "queen", "d6": "bishop", "f6": "king", "g6": "pawn", "b7": "pawn", "d7": "bishop", "h7": "pawn", "a8": "rook", "b8": "knight", "g8": "knight" } } }, "reviews": [ { "uci": "e1e6", "proposal_probability": 0.13, "loss_probability": 0.55, "mate_probability": 0.33, "quality": 1.51, "black_reply": "d5e6", "after_model_reply": { "fen": "rn4n1/1p1b3p/3bqkp1/8/8/8/PPP2PPP/6K1 w - - 0 23", "side_to_move": "white", "pieces": { "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "d6": "black bishop", "e6": "black queen", "f6": "black king", "g6": "black pawn", "b7": "black pawn", "d7": "black bishop", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "g8": "black knight" }, "in_check": false, "terminal": false } }, { "uci": "e1d1", "proposal_probability": 0.11, "loss_probability": 0.56, "mate_probability": 0.42, "quality": 1.3, "black_reply": "d5d1", "after_model_reply": { "fen": "rn4n1/1p1b3p/3b1kp1/8/8/8/PPP2PPP/3q2K1 w - - 0 23", "side_to_move": "white", "pieces": { "d1": "black queen", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "d6": "black bishop", "f6": "black king", "g6": "black pawn", "b7": "black pawn", "d7": "black bishop", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "g8": "black knight" }, "in_check": true, "terminal": true } }, { "uci": "e1a1", "proposal_probability": 0.07, "loss_probability": 0.46, "mate_probability": 0.3, "quality": 1.36, "black_reply": "d5g2", "after_model_reply": { "fen": "rn4n1/1p1b3p/3b1kp1/8/8/8/PPP2PqP/R5K1 w - - 0 23", "side_to_move": "white", "pieces": { "a1": "white rook", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "black queen", "h2": "white pawn", "d6": "black bishop", "f6": "black king", "g6": "black pawn", "b7": "black pawn", "d7": "black bishop", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "g8": "black knight" }, "in_check": true, "terminal": false } } ], "warning": "Reviews and Black replies are fallible predictions of the same Jev model, not verified engine evaluations." }, "questions": { "move": { "type": "choice", "instructions": "Choose the best White move from the reviewed candidates. Independently check each hypothetical Black reply, captures and recaptures. Prefer avoiding material loss, then useful progress and king safety. Reviews may be wrong. A high proposal probability does not prove a good move.", "criteria": { "e1e6": "rook e1 to e6; SAN Re6+", "e1d1": "rook e1 to d1; SAN Rd1", "e1a1": "rook e1 to a1; SAN Ra1" } } } }, "safety": null, "turn": 22, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "move": { "type": "choice", "choice": "e1e6", "probabilities": { "e1e6": 0.57, "e1d1": 0.04, "e1a1": 0.39 }, "confidence": 0.36 } }, "usage": { "input_tokens": 2325, "output_tokens": 50, "cost": 9.765e-05 }, "provider": "TypeSafe" }, "elapsed_s": 1.4282912299968302 }, { "stage": "proposal", "candidate": null, "request": { "model": "typesafe/jev-1.13", "state": { "fen": "rn4n1/1p5p/3bbkp1/3q4/8/8/PPP2PPP/6K1 w - - 0 23", "board": "8 r n . . . . n .\n7 . p . . . . . p\n6 . . . b b k p .\n5 . . . q . . . .\n4 . . . . . . . .\n3 . . . . . . . .\n2 P P P . . P P P\n1 . . . . . . K .\n a b c d e f g h", "legend": "Uppercase = White, lowercase = Black. P pawn, N knight, B bishop, R rook, Q queen, K king; . empty.", "you_play": "White", "in_check": false, "history_uci": [ "g1f3", "a7a5", "b1c3", "f7f5", "d2d4", "e8f7", "e2e3", "c7c6", "f1c4", "d7d5", "e1g1", "d5c4", "f3e5", "f7f6", "e5c4", "c8e6", "c3d5", "d8d5", "c4a5", "d5a5", "c1d2", "a5d8", "f1e1", "d8d6", "d2c3", "g7g6", "e3e4", "f5e4", "d4d5", "f6g5", "c3h8", "c6d5", "e1e4", "e6d7", "h8f6", "g5f6", "e4e7", "f8e7", "d1d5", "d6d5", "a1e1", "e7d6", "e1e6", "d7e6" ], "history_san": [ "Nf3", "a5", "Nc3", "f5", "d4", "Kf7", "e3", "c6", "Bc4+", "d5", "O-O", "dxc4", "Ne5+", "Kf6", "Nxc4", "Be6", "Nd5+", "Qxd5", "Nxa5", "Qxa5", "Bd2", "Qd8", "Re1", "Qd6", "Bc3", "g6", "e4", "fxe4", "d5+", "Kg5", "Bxh8", "cxd5", "Rxe4", "Bd7", "Bf6+", "Kxf6", "Rxe7", "Bxe7", "Qxd5", "Qxd5", "Re1", "Bd6", "Re6+", "Bxe6" ], "pieces": { "white": { "g1": "king", "a2": "pawn", "b2": "pawn", "c2": "pawn", "f2": "pawn", "g2": "pawn", "h2": "pawn" }, "black": { "d5": "queen", "d6": "bishop", "e6": "bishop", "f6": "king", "g6": "pawn", "b7": "pawn", "h7": "pawn", "a8": "rook", "b8": "knight", "g8": "knight" } } }, "questions": { "move": { "type": "choice", "instructions": "Choose one legal White move. You alone evaluate the moves; their list is unranked. Use the explicit piece locations to check the destination and any lines opened by moving. First consider whether Black can capture your queen, rook or minor pieces after the move. Count both sides of an exchange: pawn=1, knight/bishop=3, rook=5, queen=9. Prefer keeping material unless you can establish a concrete profitable continuation. Giving check is NOT compensation for losing a piece. When no tactic works, develop or improve a safe piece. Protect your king and aim for checkmate. Read the history to avoid purposeless repeats when ahead; a draw can be useful when losing. Return one offered UCI move.", "criteria": { "a2a3": "pawn a2 to a3; SAN a3", "a2a4": "pawn a2 to a4; SAN a4", "b2b3": "pawn b2 to b3; SAN b3", "b2b4": "pawn b2 to b4; SAN b4", "c2c3": "pawn c2 to c3; SAN c3", "c2c4": "pawn c2 to c4; SAN c4", "f2f3": "pawn f2 to f3; SAN f3", "f2f4": "pawn f2 to f4; SAN f4", "g1f1": "king g1 to f1; SAN Kf1", "g1h1": "king g1 to h1; SAN Kh1", "g2g3": "pawn g2 to g3; SAN g3", "g2g4": "pawn g2 to g4; SAN g4", "h2h3": "pawn h2 to h3; SAN h3", "h2h4": "pawn h2 to h4; SAN h4" } } } }, "safety": null, "turn": 23, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "move": { "type": "choice", "choice": "g1f1", "probabilities": { "h2h4": 0.02, "h2h3": 0.04, "c2c4": 0.07, "a2a4": 0.05, "g2g3": 0.07, "a2a3": 0.08, "f2f4": 0.03, "g1h1": 0.12000000000000001, "g2g4": 0.04, "b2b4": 0.04, "f2f3": 0.05, "b2b3": 0.07, "c2c3": 0.09000000000000001, "g1f1": 0.22999999999999998 }, "confidence": 0.18 } }, "usage": { "input_tokens": 1698, "output_tokens": 160, "cost": 7.1316e-05 }, "provider": "TypeSafe" }, "elapsed_s": 1.6564311829861253 }, { "stage": "review", "candidate": "g1f1", "request": { "model": "typesafe/jev-1.13", "state": { "before": { "fen": "rn4n1/1p5p/3bbkp1/3q4/8/8/PPP2PPP/6K1 w - - 0 23", "side_to_move": "white", "pieces": { "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "d5": "black queen", "d6": "black bishop", "e6": "black bishop", "f6": "black king", "g6": "black pawn", "b7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "g8": "black knight" }, "in_check": false, "terminal": false }, "candidate": { "uci": "g1f1", "san": "Kf1" }, "after": { "fen": "rn4n1/1p5p/3bbkp1/3q4/8/8/PPP2PPP/5K2 b - - 1 23", "side_to_move": "black", "pieces": { "f1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "d5": "black queen", "d6": "black bishop", "e6": "black bishop", "f6": "black king", "g6": "black pawn", "b7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "g8": "black knight" }, "in_check": false, "terminal": false } }, "questions": { "loses_material": { "type": "noul", "instructions": "After the candidate White move, can Black force a net material gain soon? Check legal captures, recaptures and attacks on ALL White pieces. A fair exchange is not a loss; merely being attacked is not enough. Assess from White perspective." }, "allows_mate": { "type": "noul", "instructions": "Can Black checkmate White on its very next move in the after position?" }, "quality": { "type": "score", "instructions": "Evaluate the candidate for White after Black responds strongly. Do not reward a check that sacrifices material without compensation.", "criteria": [ "Losing blunder", "Dubious or wasteful", "Playable", "Good", "Winning or excellent" ] }, "black_reply": { "type": "choice", "instructions": "Play Black in the AFTER position. Choose the strongest reply to punish White, especially hanging pieces or checkmate. Every offered move is legal.", "criteria": { "a8a2": "Rxa2", "a8a3": "Ra3", "a8a4": "Ra4", "a8a5": "Ra5", "a8a6": "Ra6", "a8a7": "Ra7", "b7b5": "b5", "b7b6": "b6", "b8a6": "Na6", "b8c6": "Nc6", "b8d7": "Nd7", "d5a2": "Qxa2", "d5a5": "Qa5", "d5b3": "Qb3", "d5b5": "Qb5+", "d5c4": "Qc4+", "d5c5": "Qc5", "d5c6": "Qc6", "d5d1": "Qd1#", "d5d2": "Qd2", "d5d3": "Qd3+", "d5d4": "Qd4", "d5e4": "Qe4", "d5e5": "Qe5", "d5f3": "Qf3", "d5f5": "Qf5", "d5g2": "Qxg2+", "d5g5": "Qg5", "d5h5": "Qh5", "d6a3": "Ba3", "d6b4": "Bb4", "d6c5": "Bc5", "d6c7": "Bc7", "d6e5": "Be5", "d6e7": "Be7", "d6f4": "Bf4", "d6f8": "Bf8", "d6g3": "Bg3", "d6h2": "Bxh2", "e6c8": "Bc8", "e6d7": "Bd7", "e6f5": "Bf5", "e6f7": "Bf7", "e6g4": "Bg4", "e6h3": "Bh3", "f6e5": "Ke5", "f6e7": "Ke7", "f6f5": "Kf5", "f6f7": "Kf7", "f6g5": "Kg5", "f6g7": "Kg7", "g6g5": "g5", "g8e7": "Ne7", "g8h6": "Nh6", "h7h5": "h5", "h7h6": "h6" } } } }, "safety": null, "turn": 23, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "loses_material": { "type": "noul", "noul": 0.49 }, "allows_mate": { "type": "noul", "noul": 0.43 }, "quality": { "type": "score", "score": 1.33, "legend": { "0": "Losing blunder", "1": "Dubious or wasteful", "2": "Playable", "3": "Good", "4": "Winning or excellent" }, "probabilities": { "0": 0.14, "1": 0.48, "2": 0.31, "3": 0.06, "4": 0.01 }, "confidence": 0.5 }, "black_reply": { "type": "choice", "choice": "d5d1", "probabilities": { "f6f7": 0, "d5e5": 0, "d5a5": 0, "d6e5": 0, "h7h6": 0, "d5d2": 0, "d5d1": 0.89, "f6e5": 0, "e6h3": 0, "b8a6": 0, "d5c5": 0, "g6g5": 0, "a8a7": 0, "d5e4": 0, "d6c7": 0, "b8c6": 0, "d6f8": 0, "d6f4": 0, "d5c6": 0, "f6e7": 0, "g8h6": 0, "a8a2": 0.01, "d5g5": 0, "d5d3": 0, "a8a5": 0, "d6e7": 0, "d6g3": 0, "e6c8": 0, "d6h2": 0, "g8e7": 0, "b7b6": 0, "d5b5": 0, "e6f7": 0, "d6c5": 0, "d6a3": 0, "h7h5": 0, "a8a6": 0, "d6b4": 0, "b7b5": 0, "d5h5": 0, "d5b3": 0, "a8a3": 0, "e6d7": 0, "d5a2": 0.01, "a8a4": 0, "d5f3": 0.03, "f6g7": 0, "d5g2": 0.04, "f6g5": 0, "d5f5": 0, "d5c4": 0.02, "f6f5": 0, "d5d4": 0, "e6f5": 0, "b8d7": 0, "e6g4": 0 }, "confidence": 0.88 } }, "usage": { "input_tokens": 1910, "output_tokens": 630, "cost": 8.022e-05 }, "provider": "TypeSafe" }, "elapsed_s": 1.67149686999619 }, { "stage": "review", "candidate": "g1h1", "request": { "model": "typesafe/jev-1.13", "state": { "before": { "fen": "rn4n1/1p5p/3bbkp1/3q4/8/8/PPP2PPP/6K1 w - - 0 23", "side_to_move": "white", "pieces": { "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "d5": "black queen", "d6": "black bishop", "e6": "black bishop", "f6": "black king", "g6": "black pawn", "b7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "g8": "black knight" }, "in_check": false, "terminal": false }, "candidate": { "uci": "g1h1", "san": "Kh1" }, "after": { "fen": "rn4n1/1p5p/3bbkp1/3q4/8/8/PPP2PPP/7K b - - 1 23", "side_to_move": "black", "pieces": { "h1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "d5": "black queen", "d6": "black bishop", "e6": "black bishop", "f6": "black king", "g6": "black pawn", "b7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "g8": "black knight" }, "in_check": false, "terminal": false } }, "questions": { "loses_material": { "type": "noul", "instructions": "After the candidate White move, can Black force a net material gain soon? Check legal captures, recaptures and attacks on ALL White pieces. A fair exchange is not a loss; merely being attacked is not enough. Assess from White perspective." }, "allows_mate": { "type": "noul", "instructions": "Can Black checkmate White on its very next move in the after position?" }, "quality": { "type": "score", "instructions": "Evaluate the candidate for White after Black responds strongly. Do not reward a check that sacrifices material without compensation.", "criteria": [ "Losing blunder", "Dubious or wasteful", "Playable", "Good", "Winning or excellent" ] }, "black_reply": { "type": "choice", "instructions": "Play Black in the AFTER position. Choose the strongest reply to punish White, especially hanging pieces or checkmate. Every offered move is legal.", "criteria": { "a8a2": "Rxa2", "a8a3": "Ra3", "a8a4": "Ra4", "a8a5": "Ra5", "a8a6": "Ra6", "a8a7": "Ra7", "b7b5": "b5", "b7b6": "b6", "b8a6": "Na6", "b8c6": "Nc6", "b8d7": "Nd7", "d5a2": "Qxa2", "d5a5": "Qa5", "d5b3": "Qb3", "d5b5": "Qb5", "d5c4": "Qc4", "d5c5": "Qc5", "d5c6": "Qc6", "d5d1": "Qd1#", "d5d2": "Qd2", "d5d3": "Qd3", "d5d4": "Qd4", "d5e4": "Qe4", "d5e5": "Qe5", "d5f3": "Qf3", "d5f5": "Qf5", "d5g2": "Qxg2+", "d5g5": "Qg5", "d5h5": "Qh5", "d6a3": "Ba3", "d6b4": "Bb4", "d6c5": "Bc5", "d6c7": "Bc7", "d6e5": "Be5", "d6e7": "Be7", "d6f4": "Bf4", "d6f8": "Bf8", "d6g3": "Bg3", "d6h2": "Bxh2", "e6c8": "Bc8", "e6d7": "Bd7", "e6f5": "Bf5", "e6f7": "Bf7", "e6g4": "Bg4", "e6h3": "Bh3", "f6e5": "Ke5", "f6e7": "Ke7", "f6f5": "Kf5", "f6f7": "Kf7", "f6g5": "Kg5", "f6g7": "Kg7", "g6g5": "g5", "g8e7": "Ne7", "g8h6": "Nh6", "h7h5": "h5", "h7h6": "h6" } } } }, "safety": null, "turn": 23, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "loses_material": { "type": "noul", "noul": 0.44 }, "allows_mate": { "type": "noul", "noul": 0.44 }, "quality": { "type": "score", "score": 1.18, "legend": { "0": "Losing blunder", "1": "Dubious or wasteful", "2": "Playable", "3": "Good", "4": "Winning or excellent" }, "probabilities": { "0": 0.13, "1": 0.61, "2": 0.22, "3": 0.03, "4": 0.01 }, "confidence": 0.63 }, "black_reply": { "type": "choice", "choice": "d5d1", "probabilities": { "a8a6": 0, "d5d1": 0.83, "d6e7": 0, "d5b5": 0, "g8h6": 0, "d6f8": 0, "d6c7": 0, "b7b6": 0, "f6g7": 0, "f6f7": 0, "h7h5": 0, "d6f4": 0, "f6e5": 0, "d5d3": 0, "d5c4": 0, "d5a2": 0.03, "d5d4": 0, "d5d2": 0, "b8a6": 0, "d5g2": 0.060000000000000005, "d5f5": 0, "b7b5": 0, "d6c5": 0, "e6g4": 0, "d5g5": 0.01, "e6f5": 0, "f6f5": 0, "e6c8": 0, "f6e7": 0, "h7h6": 0, "d5e4": 0, "g6g5": 0, "b8c6": 0, "e6f7": 0, "e6d7": 0, "e6h3": 0, "g8e7": 0, "d5a5": 0, "d6g3": 0, "d6b4": 0, "f6g5": 0, "a8a2": 0.03, "d5e5": 0, "a8a5": 0, "d5c5": 0, "b8d7": 0, "d5c6": 0, "d6a3": 0, "d5f3": 0.01, "a8a7": 0, "d5h5": 0, "d6e5": 0, "d5b3": 0, "d6h2": 0.03, "a8a3": 0, "a8a4": 0 }, "confidence": 0.81 } }, "usage": { "input_tokens": 1905, "output_tokens": 630, "cost": 8.001e-05 }, "provider": "TypeSafe" }, "elapsed_s": 1.441197001026012 }, { "stage": "review", "candidate": "c2c3", "request": { "model": "typesafe/jev-1.13", "state": { "before": { "fen": "rn4n1/1p5p/3bbkp1/3q4/8/8/PPP2PPP/6K1 w - - 0 23", "side_to_move": "white", "pieces": { "g1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "d5": "black queen", "d6": "black bishop", "e6": "black bishop", "f6": "black king", "g6": "black pawn", "b7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "g8": "black knight" }, "in_check": false, "terminal": false }, "candidate": { "uci": "c2c3", "san": "c3" }, "after": { "fen": "rn4n1/1p5p/3bbkp1/3q4/8/2P5/PP3PPP/6K1 b - - 0 23", "side_to_move": "black", "pieces": { "g1": "white king", "a2": "white pawn", "b2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "c3": "white pawn", "d5": "black queen", "d6": "black bishop", "e6": "black bishop", "f6": "black king", "g6": "black pawn", "b7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "g8": "black knight" }, "in_check": false, "terminal": false } }, "questions": { "loses_material": { "type": "noul", "instructions": "After the candidate White move, can Black force a net material gain soon? Check legal captures, recaptures and attacks on ALL White pieces. A fair exchange is not a loss; merely being attacked is not enough. Assess from White perspective." }, "allows_mate": { "type": "noul", "instructions": "Can Black checkmate White on its very next move in the after position?" }, "quality": { "type": "score", "instructions": "Evaluate the candidate for White after Black responds strongly. Do not reward a check that sacrifices material without compensation.", "criteria": [ "Losing blunder", "Dubious or wasteful", "Playable", "Good", "Winning or excellent" ] }, "black_reply": { "type": "choice", "instructions": "Play Black in the AFTER position. Choose the strongest reply to punish White, especially hanging pieces or checkmate. Every offered move is legal.", "criteria": { "a8a2": "Rxa2", "a8a3": "Ra3", "a8a4": "Ra4", "a8a5": "Ra5", "a8a6": "Ra6", "a8a7": "Ra7", "b7b5": "b5", "b7b6": "b6", "b8a6": "Na6", "b8c6": "Nc6", "b8d7": "Nd7", "d5a2": "Qxa2", "d5a5": "Qa5", "d5b3": "Qb3", "d5b5": "Qb5", "d5c4": "Qc4", "d5c5": "Qc5", "d5c6": "Qc6", "d5d1": "Qd1#", "d5d2": "Qd2", "d5d3": "Qd3", "d5d4": "Qd4", "d5e4": "Qe4", "d5e5": "Qe5", "d5f3": "Qf3", "d5f5": "Qf5", "d5g2": "Qxg2+", "d5g5": "Qg5", "d5h5": "Qh5", "d6a3": "Ba3", "d6b4": "Bb4", "d6c5": "Bc5", "d6c7": "Bc7", "d6e5": "Be5", "d6e7": "Be7", "d6f4": "Bf4", "d6f8": "Bf8", "d6g3": "Bg3", "d6h2": "Bxh2+", "e6c8": "Bc8", "e6d7": "Bd7", "e6f5": "Bf5", "e6f7": "Bf7", "e6g4": "Bg4", "e6h3": "Bh3", "f6e5": "Ke5", "f6e7": "Ke7", "f6f5": "Kf5", "f6f7": "Kf7", "f6g5": "Kg5", "f6g7": "Kg7", "g6g5": "g5", "g8e7": "Ne7", "g8h6": "Nh6", "h7h5": "h5", "h7h6": "h6" } } } }, "safety": null, "turn": 23, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "loses_material": { "type": "noul", "noul": 0.4 }, "allows_mate": { "type": "noul", "noul": 0.28 }, "quality": { "type": "score", "score": 1.45, "legend": { "0": "Losing blunder", "1": "Dubious or wasteful", "2": "Playable", "3": "Good", "4": "Winning or excellent" }, "probabilities": { "0": 0.07, "1": 0.5, "2": 0.35, "3": 0.07, "4": 0.01 }, "confidence": 0.5 }, "black_reply": { "type": "choice", "choice": "d5d1", "probabilities": { "d6h2": 0.01, "a8a5": 0, "d5f3": 0.01, "e6f7": 0, "d6c5": 0, "d5b3": 0.01, "a8a7": 0, "d5a2": 0.03, "g8e7": 0, "b8a6": 0, "e6c8": 0, "a8a2": 0.02, "d5e4": 0, "b8c6": 0, "a8a4": 0, "d6e5": 0, "f6g5": 0, "d6e7": 0, "b7b6": 0, "h7h6": 0, "d5d2": 0, "h7h5": 0, "d5d3": 0, "d6f8": 0, "d5c6": 0.01, "d5g5": 0, "b7b5": 0, "f6e5": 0, "d5a5": 0, "d6c7": 0, "f6f5": 0, "d5f5": 0, "g8h6": 0, "d5d1": 0.8200000000000001, "d5g2": 0.060000000000000005, "g6g5": 0, "e6f5": 0, "a8a3": 0.01, "e6g4": 0, "d6a3": 0, "d5c5": 0, "d5c4": 0.01, "a8a6": 0, "f6f7": 0, "b8d7": 0, "d6g3": 0, "d5d4": 0, "e6d7": 0, "e6h3": 0, "d5b5": 0, "d6f4": 0, "f6g7": 0, "d5h5": 0, "d6b4": 0, "f6e7": 0, "d5e5": 0 }, "confidence": 0.8 } }, "usage": { "input_tokens": 1909, "output_tokens": 630, "cost": 8.0178e-05 }, "provider": "TypeSafe" }, "elapsed_s": 1.6822794489562511 }, { "stage": "selection", "candidate": null, "request": { "model": "typesafe/jev-1.13", "state": { "position": { "fen": "rn4n1/1p5p/3bbkp1/3q4/8/8/PPP2PPP/6K1 w - - 0 23", "board": "8 r n . . . . n .\n7 . p . . . . . p\n6 . . . b b k p .\n5 . . . q . . . .\n4 . . . . . . . .\n3 . . . . . . . .\n2 P P P . . P P P\n1 . . . . . . K .\n a b c d e f g h", "legend": "Uppercase = White, lowercase = Black. P pawn, N knight, B bishop, R rook, Q queen, K king; . empty.", "you_play": "White", "in_check": false, "history_uci": [ "g1f3", "a7a5", "b1c3", "f7f5", "d2d4", "e8f7", "e2e3", "c7c6", "f1c4", "d7d5", "e1g1", "d5c4", "f3e5", "f7f6", "e5c4", "c8e6", "c3d5", "d8d5", "c4a5", "d5a5", "c1d2", "a5d8", "f1e1", "d8d6", "d2c3", "g7g6", "e3e4", "f5e4", "d4d5", "f6g5", "c3h8", "c6d5", "e1e4", "e6d7", "h8f6", "g5f6", "e4e7", "f8e7", "d1d5", "d6d5", "a1e1", "e7d6", "e1e6", "d7e6" ], "history_san": [ "Nf3", "a5", "Nc3", "f5", "d4", "Kf7", "e3", "c6", "Bc4+", "d5", "O-O", "dxc4", "Ne5+", "Kf6", "Nxc4", "Be6", "Nd5+", "Qxd5", "Nxa5", "Qxa5", "Bd2", "Qd8", "Re1", "Qd6", "Bc3", "g6", "e4", "fxe4", "d5+", "Kg5", "Bxh8", "cxd5", "Rxe4", "Bd7", "Bf6+", "Kxf6", "Rxe7", "Bxe7", "Qxd5", "Qxd5", "Re1", "Bd6", "Re6+", "Bxe6" ], "pieces": { "white": { "g1": "king", "a2": "pawn", "b2": "pawn", "c2": "pawn", "f2": "pawn", "g2": "pawn", "h2": "pawn" }, "black": { "d5": "queen", "d6": "bishop", "e6": "bishop", "f6": "king", "g6": "pawn", "b7": "pawn", "h7": "pawn", "a8": "rook", "b8": "knight", "g8": "knight" } } }, "reviews": [ { "uci": "g1f1", "proposal_probability": 0.22999999999999998, "loss_probability": 0.49, "mate_probability": 0.43, "quality": 1.33, "black_reply": "d5d1", "after_model_reply": { "fen": "rn4n1/1p5p/3bbkp1/8/8/8/PPP2PPP/3q1K2 w - - 2 24", "side_to_move": "white", "pieces": { "d1": "black queen", "f1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "d6": "black bishop", "e6": "black bishop", "f6": "black king", "g6": "black pawn", "b7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "g8": "black knight" }, "in_check": true, "terminal": true } }, { "uci": "g1h1", "proposal_probability": 0.12000000000000001, "loss_probability": 0.44, "mate_probability": 0.44, "quality": 1.18, "black_reply": "d5d1", "after_model_reply": { "fen": "rn4n1/1p5p/3bbkp1/8/8/8/PPP2PPP/3q3K w - - 2 24", "side_to_move": "white", "pieces": { "d1": "black queen", "h1": "white king", "a2": "white pawn", "b2": "white pawn", "c2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "d6": "black bishop", "e6": "black bishop", "f6": "black king", "g6": "black pawn", "b7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "g8": "black knight" }, "in_check": true, "terminal": true } }, { "uci": "c2c3", "proposal_probability": 0.09000000000000001, "loss_probability": 0.4, "mate_probability": 0.28, "quality": 1.45, "black_reply": "d5d1", "after_model_reply": { "fen": "rn4n1/1p5p/3bbkp1/8/8/2P5/PP3PPP/3q2K1 w - - 1 24", "side_to_move": "white", "pieces": { "d1": "black queen", "g1": "white king", "a2": "white pawn", "b2": "white pawn", "f2": "white pawn", "g2": "white pawn", "h2": "white pawn", "c3": "white pawn", "d6": "black bishop", "e6": "black bishop", "f6": "black king", "g6": "black pawn", "b7": "black pawn", "h7": "black pawn", "a8": "black rook", "b8": "black knight", "g8": "black knight" }, "in_check": true, "terminal": true } } ], "warning": "Reviews and Black replies are fallible predictions of the same Jev model, not verified engine evaluations." }, "questions": { "move": { "type": "choice", "instructions": "Choose the best White move from the reviewed candidates. Independently check each hypothetical Black reply, captures and recaptures. Prefer avoiding material loss, then useful progress and king safety. Reviews may be wrong. A high proposal probability does not prove a good move.", "criteria": { "g1f1": "king g1 to f1; SAN Kf1", "g1h1": "king g1 to h1; SAN Kh1", "c2c3": "pawn c2 to c3; SAN c3" } } } }, "safety": null, "turn": 23, "response": { "model": "typesafe/jev-1.13-20260917", "answers": { "move": { "type": "choice", "choice": "c2c3", "probabilities": { "g1h1": 0.26, "c2c3": 0.55, "g1f1": 0.19 }, "confidence": 0.32 } }, "usage": { "input_tokens": 2372, "output_tokens": 50, "cost": 9.9624e-05 }, "provider": "TypeSafe" }, "elapsed_s": 1.988620089017786 } ] }