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Given the chess position represented by the FEN string: 8/8/5n2/4PP1p/p5rk/P7/4B1RP/4R2K b - - 4 41, apply the following sequence of moves in UCI notation: h4g5, h2h4, g5f4, e2g4, f6e4, e1f1, f4e3, g4f3, e4c5, h1h2, e3d3, h2g1, d3e3. What is the FEN string of the resulting position after all these moves have been made?...
predict_fen_after_moves
fen_input
You are an exceptionally skilled Chess AI, designed to embody the combined strengths of a powerful playing engine, an insightful expert analyst, and a clear, instructive communicator. For every query, you MUST respond in the following JSON format: ```json { "thinking": "Your step-by-step reasoning process here.", ...
d3df8827aedfb161f030cdd03c1a81d407d5ad9f9cfe183b4168818d25ca913c
{ "data_origin": "game_history", "difficulty_range": null, "input_format": "fen_input", "num_moves_applied": 13, "puzzle_id": null, "rating": null, "themes": null, "verification_includes_top_n_moves": null }
{ "applied_moves_uci": [ "h4g5", "h2h4", "g5f4", "e2g4", "f6e4", "e1f1", "f4e3", "g4f3", "e4c5", "h1h2", "e3d3", "h2g1", "d3e3" ], "attacked_targets": null, "best_move_uci": null, "board_fen": null, "castling_fen": null, "en_passant_square": null, "eva...
List all legal moves for the piece on square g7 in the following position: Current Position State: - Pieces: White: King on g2; Queen on d2; Rooks on b1, e1; Bishop on b2; Knights on c3, f4; Pawns on a2, b3, c4, f2, g3, h3. Black: King on g8; Queen on d8; Rooks on b7, e6; Bishop on g7; Knights on e5, f6; Pawns on b5, ...
legal_move_generation
description_input
You are an exceptionally skilled Chess AI, designed to embody the combined strengths of a powerful playing engine, an insightful expert analyst, and a clear, instructive communicator. For every query, you MUST respond in the following JSON format: ```json { "thinking": "Your step-by-step reasoning process here.", ...
1d3af7c8846bb86f71adc85f9a438bfd7fbd6f2dbe02d9364d1d082d70e59011
{ "data_origin": null, "difficulty_range": null, "input_format": null, "num_moves_applied": null, "puzzle_id": null, "rating": null, "themes": null, "verification_includes_top_n_moves": null }
{ "applied_moves_uci": null, "attacked_targets": null, "best_move_uci": null, "board_fen": null, "castling_fen": null, "en_passant_square": null, "eval_category": null, "eval_cp": null, "eval_mate": null, "final_fen": null, "from_square": "g7", "initial_fen": null, "is_game_over": false, "ki...
What is the best move in the FEN string: r3k2r/pbpnqp1p/Bp1b1n2/3pN1p1/3P1P2/PP2P3/1BP1Q1PP/RN3K1R b kq - 2 12? Respond in JSON format with 'thinking' and 'answer' keys, putting the move in UCI format in the 'answer' field.
best_move
fen_input
You are an exceptionally skilled Chess AI, designed to embody the combined strengths of a powerful playing engine, an insightful expert analyst, and a clear, instructive communicator. For every query, you MUST respond in the following JSON format: ```json { "thinking": "Your step-by-step reasoning process here.", ...
4d3547fad4a636cd117648130cee2fa46f8c830432a02b0b120da585b2089f88
{ "data_origin": null, "difficulty_range": null, "input_format": null, "num_moves_applied": null, "puzzle_id": null, "rating": null, "themes": null, "verification_includes_top_n_moves": 5 }
{ "applied_moves_uci": null, "attacked_targets": null, "best_move_uci": "b7a6", "board_fen": null, "castling_fen": null, "en_passant_square": null, "eval_category": null, "eval_cp": null, "eval_mate": null, "final_fen": null, "from_square": null, "initial_fen": null, "is_game_over": null, "k...
Evaluate the chess position in the following position: Current Position State: - Pieces: White: King on e1; Queen on d1; Rooks on a1, h1; Bishops on c1, f1; Knights on b1, f3; Pawns on a2, b2, c4, d2, e3, f2, g3, h2. Black: King on e8; Queen on d8; Rooks on a8, h8; Bishops on c8, f8; Knights on b8, f6; Pawns on a6, b7...
evaluate_position
description_input
You are an exceptionally skilled Chess AI, designed to embody the combined strengths of a powerful playing engine, an insightful expert analyst, and a clear, instructive communicator. For every query, you MUST respond in the following JSON format: ```json { "thinking": "Your step-by-step reasoning process here.", ...
34d608c9ee859883a116247e9157fa1e86aeacfb484ba9dd7c29226883515928
{ "data_origin": null, "difficulty_range": null, "input_format": null, "num_moves_applied": null, "puzzle_id": null, "rating": null, "themes": null, "verification_includes_top_n_moves": null }
{ "applied_moves_uci": null, "attacked_targets": null, "best_move_uci": null, "board_fen": null, "castling_fen": null, "en_passant_square": null, "eval_category": "equal", "eval_cp": 23, "eval_mate": null, "final_fen": null, "from_square": null, "initial_fen": null, "is_game_over": null, "ki...
What is the best move in the FEN string: 4r1k1/1p3pp1/r5b1/p1p1p2p/7P/B3P3/7K/b7 w - - 0 47? Respond in JSON format with 'thinking' and 'answer' keys, putting the move in UCI format in the 'answer' field.
best_move
fen_input
You are an exceptionally skilled Chess AI, designed to embody the combined strengths of a powerful playing engine, an insightful expert analyst, and a clear, instructive communicator. For every query, you MUST respond in the following JSON format: ```json { "thinking": "Your step-by-step reasoning process here.", ...
c434e67d8669ee9daeb0aac377679da17ee5d53db3fe864f18e256274e46775c
{ "data_origin": null, "difficulty_range": null, "input_format": null, "num_moves_applied": null, "puzzle_id": null, "rating": null, "themes": null, "verification_includes_top_n_moves": 5 }
{ "applied_moves_uci": null, "attacked_targets": null, "best_move_uci": "h2g2", "board_fen": null, "castling_fen": null, "en_passant_square": null, "eval_category": null, "eval_cp": null, "eval_mate": null, "final_fen": null, "from_square": null, "initial_fen": null, "is_game_over": null, "k...
Describe the position of the FEN string: rnbqk2r/1pp2ppp/p3pn2/3p4/3P1b2/2P1P2P/PP1N1PP1/R2QKBNR w KQkq - 0 7. Respond in JSON format with 'thinking' and 'answer' keys, putting the summary details as a structured object in the 'answer' field.
position_summary
fen_input
You are an exceptionally skilled Chess AI, designed to embody the combined strengths of a powerful playing engine, an insightful expert analyst, and a clear, instructive communicator. For every query, you MUST respond in the following JSON format: ```json { "thinking": "Your step-by-step reasoning process here.", ...
54279f49127baf11821573a4266a909699150e1678d583226905e604541da418
{ "data_origin": null, "difficulty_range": null, "input_format": null, "num_moves_applied": null, "puzzle_id": null, "rating": null, "themes": null, "verification_includes_top_n_moves": null }
{ "applied_moves_uci": null, "attacked_targets": null, "best_move_uci": null, "board_fen": "rnbqk2r/1pp2ppp/p3pn2/3p4/3P1b2/2P1P2P/PP1N1PP1/R2QKBNR w KQkq - 0 7", "castling_fen": "KQkq", "en_passant_square": "-", "eval_category": null, "eval_cp": null, "eval_mate": null, "final_fen": null, "from_s...
What is the best move in the following position: Current Position State: - Pieces: White: King on e2; Rooks on h1, h5; Knight on e4; Pawns on c2, c4, d3, f3, g3. Black: King on f7; Rooks on e7, g6; Knight on a5; Pawns on a6, b7, e5, f6. - Turn: It is Black's turn to move. - Castling Rights: No castling rights remain. ...
best_move
description_input
You are an exceptionally skilled Chess AI, designed to embody the combined strengths of a powerful playing engine, an insightful expert analyst, and a clear, instructive communicator. For every query, you MUST respond in the following JSON format: ```json { "thinking": "Your step-by-step reasoning process here.", ...
486cf110141f01ef8adef9b2b8b57f37ae56f7232a750a25c75ab4b190cca3af
{ "data_origin": null, "difficulty_range": null, "input_format": null, "num_moves_applied": null, "puzzle_id": null, "rating": null, "themes": null, "verification_includes_top_n_moves": 5 }
{ "applied_moves_uci": null, "attacked_targets": null, "best_move_uci": "a5c6", "board_fen": null, "castling_fen": null, "en_passant_square": null, "eval_category": null, "eval_cp": null, "eval_mate": null, "final_fen": null, "from_square": null, "initial_fen": null, "is_game_over": null, "k...
What is the best move in the FEN string: r1q1kb1r/1pp1n1p1/4bpn1/P2pp3/2P4p/3P1NP1/PRQNPPBP/2B2RK1 b kq - 1 15? Respond in JSON format with 'thinking' and 'answer' keys, putting the move in UCI format in the 'answer' field.
best_move
fen_input
You are an exceptionally skilled Chess AI, designed to embody the combined strengths of a powerful playing engine, an insightful expert analyst, and a clear, instructive communicator. For every query, you MUST respond in the following JSON format: ```json { "thinking": "Your step-by-step reasoning process here.", ...
18879dfcc12000906bf7e3c9b6974423a5ae2b00e12f470512a06a4369bc96a0
{ "data_origin": null, "difficulty_range": null, "input_format": null, "num_moves_applied": null, "puzzle_id": null, "rating": null, "themes": null, "verification_includes_top_n_moves": 5 }
{ "applied_moves_uci": null, "attacked_targets": null, "best_move_uci": "e7c6", "board_fen": null, "castling_fen": null, "en_passant_square": null, "eval_category": null, "eval_cp": null, "eval_mate": null, "final_fen": null, "from_square": null, "initial_fen": null, "is_game_over": null, "k...
Given the chess position represented by the following position: Current Position State: - Pieces: White: King on e1; Queen on d4; Rooks on a1, h1; Bishops on c1, g2; Knights on b1, g1; Pawns on a2, b2, c2, e4, f2, g3, h2. Black: King on e8; Queen on d8; Rooks on a8, h8; Bishops on c8, e7; Knights on b8, g8; Pawns on a...
predict_fen_after_moves
description_input
You are an exceptionally skilled Chess AI, designed to embody the combined strengths of a powerful playing engine, an insightful expert analyst, and a clear, instructive communicator. For every query, you MUST respond in the following JSON format: ```json { "thinking": "Your step-by-step reasoning process here.", ...
1a07b9bed96b723add46bcd6774d5c3cf7ba317997b4466f2bf26e0200323f3b
{ "data_origin": "game_history", "difficulty_range": null, "input_format": "description_input", "num_moves_applied": 9, "puzzle_id": null, "rating": null, "themes": null, "verification_includes_top_n_moves": null }
{ "applied_moves_uci": [ "d7d6", "h2h3", "b8a6", "g1e2", "g8f6", "c2c4", "d8a5", "d4c3", "a5e5" ], "attacked_targets": null, "best_move_uci": null, "board_fen": null, "castling_fen": null, "en_passant_square": null, "eval_category": null, "eval_cp": null, "eval_ma...
What is the best move in the following position: Current Position State: - Pieces: White: King on g2; Rooks on a1, a7; Bishop on a5; Pawns on a2, c4, e4, f2, g3, h4. Black: King on g6; Rooks on b8, c6; Bishop on e2; Knight on d3; Pawns on e5, f6, g7, h5. - Turn: It is Black's turn to move. - Castling Rights: No castli...
best_move
description_input
You are an exceptionally skilled Chess AI, designed to embody the combined strengths of a powerful playing engine, an insightful expert analyst, and a clear, instructive communicator. For every query, you MUST respond in the following JSON format: ```json { "thinking": "Your step-by-step reasoning process here.", ...
d829ad6ddf7a743a4cb29d91ad784f0297e2c700c2f7091c07833ba40486e6d2
{ "data_origin": null, "difficulty_range": null, "input_format": null, "num_moves_applied": null, "puzzle_id": null, "rating": null, "themes": null, "verification_includes_top_n_moves": 5 }
{ "applied_moves_uci": null, "attacked_targets": null, "best_move_uci": "b8b2", "board_fen": null, "castling_fen": null, "en_passant_square": null, "eval_category": null, "eval_cp": null, "eval_mate": null, "final_fen": null, "from_square": null, "initial_fen": null, "is_game_over": null, "k...
What is the best move in the FEN string: 2b5/7k/P4p2/3B2p1/r6p/7P/5PP1/6K1 b - - 1 55? Respond in JSON format with 'thinking' and 'answer' keys, putting the move in UCI format in the 'answer' field.
best_move
fen_input
You are an exceptionally skilled Chess AI, designed to embody the combined strengths of a powerful playing engine, an insightful expert analyst, and a clear, instructive communicator. For every query, you MUST respond in the following JSON format: ```json { "thinking": "Your step-by-step reasoning process here.", ...
233667af9f6f7138aa71864bcba790aa6e4eeece8f51bc689e03fb5f68383aa3
{ "data_origin": null, "difficulty_range": null, "input_format": null, "num_moves_applied": null, "puzzle_id": null, "rating": null, "themes": null, "verification_includes_top_n_moves": 5 }
{ "applied_moves_uci": null, "attacked_targets": null, "best_move_uci": "h7h6", "board_fen": null, "castling_fen": null, "en_passant_square": null, "eval_category": null, "eval_cp": null, "eval_mate": null, "final_fen": null, "from_square": null, "initial_fen": null, "is_game_over": null, "k...
What is the best move in the FEN string: r3k1nr/p2qbppp/4p3/1Pp5/P2pP3/1P3Q2/3N1PPP/R1B2RK1 b kq - 3 17? Respond in JSON format with 'thinking' and 'answer' keys, putting the move in UCI format in the 'answer' field.
best_move
fen_input
You are an exceptionally skilled Chess AI, designed to embody the combined strengths of a powerful playing engine, an insightful expert analyst, and a clear, instructive communicator. For every query, you MUST respond in the following JSON format: ```json { "thinking": "Your step-by-step reasoning process here.", ...
aa30dc05f437dbaec6d5480622a508a504bc811b93b671c56cc57ad2561e6d42
{ "data_origin": null, "difficulty_range": null, "input_format": null, "num_moves_applied": null, "puzzle_id": null, "rating": null, "themes": null, "verification_includes_top_n_moves": 5 }
{ "applied_moves_uci": null, "attacked_targets": null, "best_move_uci": "g8f6", "board_fen": null, "castling_fen": null, "en_passant_square": null, "eval_category": null, "eval_cp": null, "eval_mate": null, "final_fen": null, "from_square": null, "initial_fen": null, "is_game_over": null, "k...
What is the best move in the following position: Current Position State: - Pieces: White: King on f2; Rook on b1; Bishop on d2; Knight on e3; Pawns on e2, g4, h4. Black: King on g8; Rooks on a8, e8; Bishops on a3, e6; Pawns on a5, b7, c6, e5, f7, g7, h6. - Turn: It is Black's turn to move. - Castling Rights: No castli...
best_move
description_input
You are an exceptionally skilled Chess AI, designed to embody the combined strengths of a powerful playing engine, an insightful expert analyst, and a clear, instructive communicator. For every query, you MUST respond in the following JSON format: ```json { "thinking": "Your step-by-step reasoning process here.", ...
dde12f24186439b79755be235957bfc0e47c7d9e30e70a478fdb8dbd2a98b869
{ "data_origin": null, "difficulty_range": null, "input_format": null, "num_moves_applied": null, "puzzle_id": null, "rating": null, "themes": null, "verification_includes_top_n_moves": 5 }
{ "applied_moves_uci": null, "attacked_targets": null, "best_move_uci": "a3c5", "board_fen": null, "castling_fen": null, "en_passant_square": null, "eval_category": null, "eval_cp": null, "eval_mate": null, "final_fen": null, "from_square": null, "initial_fen": null, "is_game_over": null, "k...
What is the best move in the FEN string: r5q1/pp2kp1p/2p1bp1b/8/1PNp2rP/P2P2P1/4QPBN/4RK1R b - - 4 19? Respond in JSON format with 'thinking' and 'answer' keys, putting the move in UCI format in the 'answer' field.
best_move
fen_input
You are an exceptionally skilled Chess AI, designed to embody the combined strengths of a powerful playing engine, an insightful expert analyst, and a clear, instructive communicator. For every query, you MUST respond in the following JSON format: ```json { "thinking": "Your step-by-step reasoning process here.", ...
aa00ea0a4b091147ffa076c01d20ad57811e70e8cd4df8a3ee5b82e373937036
{ "data_origin": null, "difficulty_range": null, "input_format": null, "num_moves_applied": null, "puzzle_id": null, "rating": null, "themes": null, "verification_includes_top_n_moves": 5 }
{ "applied_moves_uci": null, "attacked_targets": null, "best_move_uci": "e7f8", "board_fen": null, "castling_fen": null, "en_passant_square": null, "eval_category": null, "eval_cp": null, "eval_mate": null, "final_fen": null, "from_square": null, "initial_fen": null, "is_game_over": null, "k...
Which pieces are currently under attack in the FEN string: 5B1k/8/5N1P/p5p1/p6P/P7/1K6/3b4 w - - 12 80? Respond in JSON format with 'thinking' and 'answer' keys, putting a list of the attacked pieces in the 'answer' field.
pieces_under_attack
fen_input
You are an exceptionally skilled Chess AI, designed to embody the combined strengths of a powerful playing engine, an insightful expert analyst, and a clear, instructive communicator. For every query, you MUST respond in the following JSON format: ```json { "thinking": "Your step-by-step reasoning process here.", ...
2903fa784d0329e03d1f9f85430da804c4c6b12c35d5223caf5943b27f832073
{ "data_origin": null, "difficulty_range": null, "input_format": null, "num_moves_applied": null, "puzzle_id": null, "rating": null, "themes": null, "verification_includes_top_n_moves": null }
{ "applied_moves_uci": null, "attacked_targets": [ { "color": "black", "piece_type": "pawn", "square": "g5" }, { "color": "white", "piece_type": "pawn", "square": "h4" } ], "best_move_uci": null, "board_fen": null, "castling_fen": null, "en_passant_squar...
Given the chess position represented by the following position: Current Position State: - Pieces: White: King on e1; Queen on d1; Rooks on a1, h1; Bishops on c1, f1; Knights on b1, g1; Pawns on a2, b2, c4, d2, e2, f2, g2, h2. Black: King on e8; Queen on d8; Rooks on a8, h8; Bishops on c8, f8; Knights on b8, g8; Pawns ...
predict_fen_after_moves
description_input
You are an exceptionally skilled Chess AI, designed to embody the combined strengths of a powerful playing engine, an insightful expert analyst, and a clear, instructive communicator. For every query, you MUST respond in the following JSON format: ```json { "thinking": "Your step-by-step reasoning process here.", ...
1be838ff1e13ba41e9871b72ebcc2f2f6f6e75d755e9cf28f9e4a12c3c6a8ee6
{ "data_origin": "game_history", "difficulty_range": null, "input_format": "description_input", "num_moves_applied": 1, "puzzle_id": null, "rating": null, "themes": null, "verification_includes_top_n_moves": null }
{ "applied_moves_uci": [ "g7g6" ], "attacked_targets": null, "best_move_uci": null, "board_fen": null, "castling_fen": null, "en_passant_square": null, "eval_category": null, "eval_cp": null, "eval_mate": null, "final_fen": "rnbqkbnr/pppppp1p/6p1/8/2P5/8/PP1PPPPP/RNBQKBNR w KQkq - 0 2", "fro...
What is the best move in the following position: Current Position State: - Pieces: White: King on e1; Queen on d1; Rooks on a1, h1; Bishops on c1, g2; Knights on d2, g1; Pawns on a3, b2, c4, d3, e3, f2, g3, h3. Black: King on g8; Queen on d8; Rooks on a8, e8; Bishops on c8, e7; Knights on c6, d7; Pawns on a5, b7, c7, ...
best_move
description_input
You are an exceptionally skilled Chess AI, designed to embody the combined strengths of a powerful playing engine, an insightful expert analyst, and a clear, instructive communicator. For every query, you MUST respond in the following JSON format: ```json { "thinking": "Your step-by-step reasoning process here.", ...
f28cd0867508abc5eb496eaa2e0c85c15983567e0089d6ce6da61cbc94feff8c
{ "data_origin": null, "difficulty_range": null, "input_format": null, "num_moves_applied": null, "puzzle_id": null, "rating": null, "themes": null, "verification_includes_top_n_moves": 5 }
{ "applied_moves_uci": null, "attacked_targets": null, "best_move_uci": "d7c5", "board_fen": null, "castling_fen": null, "en_passant_square": null, "eval_category": null, "eval_cp": null, "eval_mate": null, "final_fen": null, "from_square": null, "initial_fen": null, "is_game_over": null, "k...
Summarize the key details (pieces, turn, castling, en passant) of the following position: Current Position State: - Pieces: White: King on h1; Rooks on a4, b6; Knight on e5; Pawns on c3, d4, f2, g2, h3. Black: King on g7; Rook on a8; Bishops on e6, f8; Pawns on a5, f7, g6, h4. - Turn: It is Black's turn to move. - Cas...
position_summary
description_input
You are an exceptionally skilled Chess AI, designed to embody the combined strengths of a powerful playing engine, an insightful expert analyst, and a clear, instructive communicator. For every query, you MUST respond in the following JSON format: ```json { "thinking": "Your step-by-step reasoning process here.", ...
14288210f0a9420ccb885bec4ecdda6db293f528c7cfbb33cc8b3acb4d53cb81
{ "data_origin": null, "difficulty_range": null, "input_format": null, "num_moves_applied": null, "puzzle_id": null, "rating": null, "themes": null, "verification_includes_top_n_moves": null }
{ "applied_moves_uci": null, "attacked_targets": null, "best_move_uci": null, "board_fen": "r4b2/5pk1/1R2b1p1/p3N3/R2P3p/2P4P/5PP1/7K b - - 4 38", "castling_fen": "-", "en_passant_square": "-", "eval_category": null, "eval_cp": null, "eval_mate": null, "final_fen": null, "from_square": null, "in...
Which pieces are currently under attack in the FEN string: 5k2/1P1n3R/p7/P4Np1/3P2P1/8/5K1P/8 b - - 0 45? Respond in JSON format with 'thinking' and 'answer' keys, putting a list of the attacked pieces in the 'answer' field.
pieces_under_attack
fen_input
You are an exceptionally skilled Chess AI, designed to embody the combined strengths of a powerful playing engine, an insightful expert analyst, and a clear, instructive communicator. For every query, you MUST respond in the following JSON format: ```json { "thinking": "Your step-by-step reasoning process here.", ...
11157dbd1c6214e24fd274f8a99b2149d0e6d343174098c883c1e8fa003dd6c9
{ "data_origin": null, "difficulty_range": null, "input_format": null, "num_moves_applied": null, "puzzle_id": null, "rating": null, "themes": null, "verification_includes_top_n_moves": null }
{ "applied_moves_uci": null, "attacked_targets": [ { "color": "black", "piece_type": "knight", "square": "d7" } ], "best_move_uci": null, "board_fen": null, "castling_fen": null, "en_passant_square": null, "eval_category": null, "eval_cp": null, "eval_mate": null, "final_...
What is the best move in the FEN string: 8/6K1/2q5/4n3/p2k4/P7/8/8 w - - 28 102? Respond in JSON format with 'thinking' and 'answer' keys, putting the move in UCI format in the 'answer' field.
best_move
fen_input
You are an exceptionally skilled Chess AI, designed to embody the combined strengths of a powerful playing engine, an insightful expert analyst, and a clear, instructive communicator. For every query, you MUST respond in the following JSON format: ```json { "thinking": "Your step-by-step reasoning process here.", ...
1679ea1d1527009858095e625d5c2e6eeaf8df74c731be62e38fd661630b7584
{ "data_origin": null, "difficulty_range": null, "input_format": null, "num_moves_applied": null, "puzzle_id": null, "rating": null, "themes": null, "verification_includes_top_n_moves": 5 }
{ "applied_moves_uci": null, "attacked_targets": null, "best_move_uci": "g7f8", "board_fen": null, "castling_fen": null, "en_passant_square": null, "eval_category": null, "eval_cp": null, "eval_mate": null, "final_fen": null, "from_square": null, "initial_fen": null, "is_game_over": null, "k...
List all legal moves for the piece on square e6 in the FEN string: 1b3r1k/1p2Np2/p3b2r/2p2p2/2P3pP/3R4/PPKN4/5R2 b - - 2 35. Respond in JSON format with 'thinking' and 'answer' keys, putting a list of the moves in UCI format in the 'answer' field.
legal_move_generation
fen_input
You are an exceptionally skilled Chess AI, designed to embody the combined strengths of a powerful playing engine, an insightful expert analyst, and a clear, instructive communicator. For every query, you MUST respond in the following JSON format: ```json { "thinking": "Your step-by-step reasoning process here.", ...
5c2050161e6f8785bcec7654c84a13d265e752cb4539a997baad22630a3d335e
{ "data_origin": null, "difficulty_range": null, "input_format": null, "num_moves_applied": null, "puzzle_id": null, "rating": null, "themes": null, "verification_includes_top_n_moves": null }
{ "applied_moves_uci": null, "attacked_targets": null, "best_move_uci": null, "board_fen": null, "castling_fen": null, "en_passant_square": null, "eval_category": null, "eval_cp": null, "eval_mate": null, "final_fen": null, "from_square": "e6", "initial_fen": null, "is_game_over": false, "ki...
Summarize the key details (pieces, turn, castling, en passant) of the following position: Current Position State: - Pieces: White: King on e1; Queen on e2; Rooks on a1, h1; Bishops on c4, d2; Knight on c3; Pawns on a3, b4, e4, f2, g2, h2. Black: King on e8; Queen on d8; Rooks on a8, h8; Bishops on c8, d4; Knight on e7...
position_summary
description_input
You are an exceptionally skilled Chess AI, designed to embody the combined strengths of a powerful playing engine, an insightful expert analyst, and a clear, instructive communicator. For every query, you MUST respond in the following JSON format: ```json { "thinking": "Your step-by-step reasoning process here.", ...
941089eb44b2c0877a3b9da6ce195acdbe6cc7d3ffa0fd2c26dc3739c27cd83d
{ "data_origin": null, "difficulty_range": null, "input_format": null, "num_moves_applied": null, "puzzle_id": null, "rating": null, "themes": null, "verification_includes_top_n_moves": null }
{ "applied_moves_uci": null, "attacked_targets": null, "best_move_uci": null, "board_fen": "r1bqk2r/1p1pnppp/p3p3/8/1PBbP3/P1N5/3BQPPP/R3K2R w KQkq - 2 12", "castling_fen": "KQkq", "en_passant_square": "-", "eval_category": null, "eval_cp": null, "eval_mate": null, "final_fen": null, "from_square"...
List all legal moves for the piece on square a1 in the FEN string: r1br2k1/1pp1qpp1/p1n1pn1p/3p4/3P1B1P/P1PBPN2/2P1QPP1/R4RK1 w - - 5 12. Respond in JSON format with 'thinking' and 'answer' keys, putting a list of the moves in UCI format in the 'answer' field.
legal_move_generation
fen_input
You are an exceptionally skilled Chess AI, designed to embody the combined strengths of a powerful playing engine, an insightful expert analyst, and a clear, instructive communicator. For every query, you MUST respond in the following JSON format: ```json { "thinking": "Your step-by-step reasoning process here.", ...
ed8533b0a5f42bf250da9585cd8115275b3e69084d412737732523d893caaeab
{ "data_origin": null, "difficulty_range": null, "input_format": null, "num_moves_applied": null, "puzzle_id": null, "rating": null, "themes": null, "verification_includes_top_n_moves": null }
{ "applied_moves_uci": null, "attacked_targets": null, "best_move_uci": null, "board_fen": null, "castling_fen": null, "en_passant_square": null, "eval_category": null, "eval_cp": null, "eval_mate": null, "final_fen": null, "from_square": "a1", "initial_fen": null, "is_game_over": false, "ki...
What is the best move in the following position: Current Position State: - Pieces: White: King on f2; Rook on b2; Pawns on b4, g3, h4. Black: King on e5; Rook on b6; Pawns on f6, g7, h5. - Turn: It is White's turn to move. - Castling Rights: No castling rights remain. - En Passant: There is no en passant target square...
best_move
description_input
You are an exceptionally skilled Chess AI, designed to embody the combined strengths of a powerful playing engine, an insightful expert analyst, and a clear, instructive communicator. For every query, you MUST respond in the following JSON format: ```json { "thinking": "Your step-by-step reasoning process here.", ...
b569a0ee0853375d0fe8f6159e736e1514cbf65d0f35914e8d34eaa057d955c5
{ "data_origin": null, "difficulty_range": null, "input_format": null, "num_moves_applied": null, "puzzle_id": null, "rating": null, "themes": null, "verification_includes_top_n_moves": 5 }
{ "applied_moves_uci": null, "attacked_targets": null, "best_move_uci": "f2f3", "board_fen": null, "castling_fen": null, "en_passant_square": null, "eval_category": null, "eval_cp": null, "eval_mate": null, "final_fen": null, "from_square": null, "initial_fen": null, "is_game_over": null, "k...
List all legal moves for the piece on square a2 in the FEN string: 8/8/2k4p/4p2P/4K1B1/8/R7/8 w - - 2 84. Respond in JSON format with 'thinking' and 'answer' keys, putting a list of the moves in UCI format in the 'answer' field.
legal_move_generation
fen_input
You are an exceptionally skilled Chess AI, designed to embody the combined strengths of a powerful playing engine, an insightful expert analyst, and a clear, instructive communicator. For every query, you MUST respond in the following JSON format: ```json { "thinking": "Your step-by-step reasoning process here.", ...
c26bc47a687156f06b090e1a671315edeb568ab26cfb8a78d99674d269cd2f7f
{ "data_origin": null, "difficulty_range": null, "input_format": null, "num_moves_applied": null, "puzzle_id": null, "rating": null, "themes": null, "verification_includes_top_n_moves": null }
{ "applied_moves_uci": null, "attacked_targets": null, "best_move_uci": null, "board_fen": null, "castling_fen": null, "en_passant_square": null, "eval_category": null, "eval_cp": null, "eval_mate": null, "final_fen": null, "from_square": "a2", "initial_fen": null, "is_game_over": false, "ki...
Summarize the key details (pieces, turn, castling, en passant) of the following position: Current Position State: - Pieces: White: King on g1; Queen on e2; Rooks on a1, f1; Bishops on a3, d3; Knight on d2; Pawns on a4, b4, c4, d4, e3, f2, f4, h2. Black: King on e8; Queen on e7; Rooks on a8, h8; Bishop on g7; Knights o...
position_summary
description_input
You are an exceptionally skilled Chess AI, designed to embody the combined strengths of a powerful playing engine, an insightful expert analyst, and a clear, instructive communicator. For every query, you MUST respond in the following JSON format: ```json { "thinking": "Your step-by-step reasoning process here.", ...
cd47f6eedcc92f6eaaf7a3fe998f5ae18748e48e40a3b5678958a11a4642b62b
{ "data_origin": null, "difficulty_range": null, "input_format": null, "num_moves_applied": null, "puzzle_id": null, "rating": null, "themes": null, "verification_includes_top_n_moves": null }
{ "applied_moves_uci": null, "attacked_targets": null, "best_move_uci": null, "board_fen": "rn2k2r/1p2qpb1/p1p1pnp1/3p3p/PPPP1P2/B2BP3/3NQP1P/R4RK1 b q - 2 14", "castling_fen": "q", "en_passant_square": "-", "eval_category": null, "eval_cp": null, "eval_mate": null, "final_fen": null, "from_square...
What is the best move in the following position: Current Position State: - Pieces: White: King on g1; Queen on d3; Rooks on e1, f1; Bishop on f4; Pawns on a2, b2, c2, d4, e2, g3, h4. Black: King on f7; Queen on d8; Rook on a8; Bishops on e7, g4; Knight on a6; Pawns on a5, b7, d5, d6, g7, h5. - Turn: It is Black's turn...
best_move
description_input
You are an exceptionally skilled Chess AI, designed to embody the combined strengths of a powerful playing engine, an insightful expert analyst, and a clear, instructive communicator. For every query, you MUST respond in the following JSON format: ```json { "thinking": "Your step-by-step reasoning process here.", ...
8df3bc7d22350865238ccef75e068a6cc1954b1ea4053140504db41a6f297700
{ "data_origin": null, "difficulty_range": null, "input_format": null, "num_moves_applied": null, "puzzle_id": null, "rating": null, "themes": null, "verification_includes_top_n_moves": 5 }
{ "applied_moves_uci": null, "attacked_targets": null, "best_move_uci": "f7g8", "board_fen": null, "castling_fen": null, "en_passant_square": null, "eval_category": null, "eval_cp": null, "eval_mate": null, "final_fen": null, "from_square": null, "initial_fen": null, "is_game_over": null, "k...
List all legal moves for the piece on square f4 in the FEN string: 5b2/8/8/2n5/5K2/1pk5/8/1R6 w - - 55 112. Respond in JSON format with 'thinking' and 'answer' keys, putting a list of the moves in UCI format in the 'answer' field.
legal_move_generation
fen_input
You are an exceptionally skilled Chess AI, designed to embody the combined strengths of a powerful playing engine, an insightful expert analyst, and a clear, instructive communicator. For every query, you MUST respond in the following JSON format: ```json { "thinking": "Your step-by-step reasoning process here.", ...
51f1b76b5cf84dec46825e6b6ee68ffcfb55e7f655c71c30bf3fcaa5ec569471
{ "data_origin": null, "difficulty_range": null, "input_format": null, "num_moves_applied": null, "puzzle_id": null, "rating": null, "themes": null, "verification_includes_top_n_moves": null }
{ "applied_moves_uci": null, "attacked_targets": null, "best_move_uci": null, "board_fen": null, "castling_fen": null, "en_passant_square": null, "eval_category": null, "eval_cp": null, "eval_mate": null, "final_fen": null, "from_square": "f4", "initial_fen": null, "is_game_over": false, "ki...
Which pieces are currently under attack in the following position: Current Position State: - Pieces: White: King on h2; Queen on b2; Rooks on c1, d1; Bishop on f1; Knights on a5, c4; Pawns on a4, b3, f4, g2, h3. Black: King on g8; Queen on c5; Rooks on d8, f8; Bishop on d5; Knight on e4; Pawns on b6, e6, f6, g7, h7. -...
pieces_under_attack
description_input
You are an exceptionally skilled Chess AI, designed to embody the combined strengths of a powerful playing engine, an insightful expert analyst, and a clear, instructive communicator. For every query, you MUST respond in the following JSON format: ```json { "thinking": "Your step-by-step reasoning process here.", ...
980ff4905aaec15876b9a4907652797b7b6eb5f33587435ed1158301706c4550
{ "data_origin": null, "difficulty_range": null, "input_format": null, "num_moves_applied": null, "puzzle_id": null, "rating": null, "themes": null, "verification_includes_top_n_moves": null }
{ "applied_moves_uci": null, "attacked_targets": [ { "color": "white", "piece_type": "knight", "square": "a5" }, { "color": "black", "piece_type": "pawn", "square": "b6" }, { "color": "white", "piece_type": "knight", "square": "c4" }, ...
Which pieces are currently under attack in the following position: Current Position State: - Pieces: White: King on e1; Queen on d1; Rooks on a1, h1; Bishops on c1, e2; Knights on b1, f3; Pawns on a4, b2, c4, d2, e3, f2, g2, h3. Black: King on e8; Queen on d8; Rooks on a8, h8; Bishops on c8, f8; Knights on b8, g8; Paw...
pieces_under_attack
description_input
You are an exceptionally skilled Chess AI, designed to embody the combined strengths of a powerful playing engine, an insightful expert analyst, and a clear, instructive communicator. For every query, you MUST respond in the following JSON format: ```json { "thinking": "Your step-by-step reasoning process here.", ...
134510ef6ce93cd70d453e0a9d7b06598b3fbb09aecf807c9381f51424214b66
{ "data_origin": null, "difficulty_range": null, "input_format": null, "num_moves_applied": null, "puzzle_id": null, "rating": null, "themes": null, "verification_includes_top_n_moves": null }
{ "applied_moves_uci": null, "attacked_targets": [ { "color": "white", "piece_type": "pawn", "square": "c4" }, { "color": "black", "piece_type": "pawn", "square": "d5" }, { "color": "white", "piece_type": "pawn", "square": "h3" } ], "...
What is the best move in the following position: Current Position State: - Pieces: White: King on c5; Rook on c3; Knight on b4; Pawns on g3, h4. Black: King on g6; Rook on a4; Knight on h6; Pawns on f6, h5. - Turn: It is White's turn to move. - Castling Rights: No castling rights remain. - En Passant: There is no en p...
best_move
description_input
You are an exceptionally skilled Chess AI, designed to embody the combined strengths of a powerful playing engine, an insightful expert analyst, and a clear, instructive communicator. For every query, you MUST respond in the following JSON format: ```json { "thinking": "Your step-by-step reasoning process here.", ...
0815f3f52022de893a8f25e3e8640b2616b7a0b7f4e0bbca4597bd51052b57f4
{ "data_origin": null, "difficulty_range": null, "input_format": null, "num_moves_applied": null, "puzzle_id": null, "rating": null, "themes": null, "verification_includes_top_n_moves": 5 }
{ "applied_moves_uci": null, "attacked_targets": null, "best_move_uci": "c3f3", "board_fen": null, "castling_fen": null, "en_passant_square": null, "eval_category": null, "eval_cp": null, "eval_mate": null, "final_fen": null, "from_square": null, "initial_fen": null, "is_game_over": null, "k...
What is the best move in the following position: Current Position State: - Pieces: White: King on e5; Rook on c7; Bishop on e4. Black: King on g7; Rook on f1. - Turn: It is Black's turn to move. - Castling Rights: No castling rights remain. - En Passant: There is no en passant target square. ? Respond in JSON format w...
best_move
description_input
You are an exceptionally skilled Chess AI, designed to embody the combined strengths of a powerful playing engine, an insightful expert analyst, and a clear, instructive communicator. For every query, you MUST respond in the following JSON format: ```json { "thinking": "Your step-by-step reasoning process here.", ...
58556bb510674be588fce757bef2d38b5cf8dafba1a4f6f9842a18414d023337
{ "data_origin": null, "difficulty_range": null, "input_format": null, "num_moves_applied": null, "puzzle_id": null, "rating": null, "themes": null, "verification_includes_top_n_moves": 5 }
{ "applied_moves_uci": null, "attacked_targets": null, "best_move_uci": "f1f7", "board_fen": null, "castling_fen": null, "en_passant_square": null, "eval_category": null, "eval_cp": null, "eval_mate": null, "final_fen": null, "from_square": null, "initial_fen": null, "is_game_over": null, "k...
What is the best move in the FEN string: rnbqkbnr/pppppppp/8/8/8/4P3/PPPP1PPP/RNBQKBNR b KQkq - 0 1? Respond in JSON format with 'thinking' and 'answer' keys, putting the move in UCI format in the 'answer' field.
best_move
fen_input
You are an exceptionally skilled Chess AI, designed to embody the combined strengths of a powerful playing engine, an insightful expert analyst, and a clear, instructive communicator. For every query, you MUST respond in the following JSON format: ```json { "thinking": "Your step-by-step reasoning process here.", ...
568641c6004364db5c3321af46db9daccf7110e48ae2b18895996871a9b713f5
{ "data_origin": null, "difficulty_range": null, "input_format": null, "num_moves_applied": null, "puzzle_id": null, "rating": null, "themes": null, "verification_includes_top_n_moves": 5 }
{ "applied_moves_uci": null, "attacked_targets": null, "best_move_uci": "e7e6", "board_fen": null, "castling_fen": null, "en_passant_square": null, "eval_category": null, "eval_cp": null, "eval_mate": null, "final_fen": null, "from_square": null, "initial_fen": null, "is_game_over": null, "k...
What is the best move in the FEN string: 1nr3k1/1b2qp1p/4pb2/1p3p2/3P4/3N2P1/1P1NPPBP/2Q2RK1 w - - 1 21? Respond in JSON format with 'thinking' and 'answer' keys, putting the move in UCI format in the 'answer' field.
best_move
fen_input
You are an exceptionally skilled Chess AI, designed to embody the combined strengths of a powerful playing engine, an insightful expert analyst, and a clear, instructive communicator. For every query, you MUST respond in the following JSON format: ```json { "thinking": "Your step-by-step reasoning process here.", ...
187ad931867e6c5970e3d0032f77a8cef73fe68d7509280c4babd15daea545cd
{ "data_origin": null, "difficulty_range": null, "input_format": null, "num_moves_applied": null, "puzzle_id": null, "rating": null, "themes": null, "verification_includes_top_n_moves": 5 }
{ "applied_moves_uci": null, "attacked_targets": null, "best_move_uci": "c1a1", "board_fen": null, "castling_fen": null, "en_passant_square": null, "eval_category": null, "eval_cp": null, "eval_mate": null, "final_fen": null, "from_square": null, "initial_fen": null, "is_game_over": null, "k...
What is the best move in the FEN string: r4b1r/3k1p2/2b2P1p/1p2p1p1/4N3/2P4P/1PKB1PP1/R3R3 w - - 0 20? Respond in JSON format with 'thinking' and 'answer' keys, putting the move in UCI format in the 'answer' field.
best_move
fen_input
You are an exceptionally skilled Chess AI, designed to embody the combined strengths of a powerful playing engine, an insightful expert analyst, and a clear, instructive communicator. For every query, you MUST respond in the following JSON format: ```json { "thinking": "Your step-by-step reasoning process here.", ...
1f25c202901ce3fd42c1f8b3ffe2f7482a69b840bb815b2913fc3338c6c96758
{ "data_origin": null, "difficulty_range": null, "input_format": null, "num_moves_applied": null, "puzzle_id": null, "rating": null, "themes": null, "verification_includes_top_n_moves": 5 }
{ "applied_moves_uci": null, "attacked_targets": null, "best_move_uci": "a1a8", "board_fen": null, "castling_fen": null, "en_passant_square": null, "eval_category": null, "eval_cp": null, "eval_mate": null, "final_fen": null, "from_square": null, "initial_fen": null, "is_game_over": null, "k...
Given the chess position represented by the following position: Current Position State: - Pieces: White: King on h4; Bishop on e4; Pawns on b5, e6, h5. Black: King on c4; Rooks on g1, g3; Knight on b4; Pawns on b6, f4, h6. - Turn: It is Black's turn to move. - Castling Rights: No castling rights remain. - En Passant: ...
predict_fen_after_moves
description_input
You are an exceptionally skilled Chess AI, designed to embody the combined strengths of a powerful playing engine, an insightful expert analyst, and a clear, instructive communicator. For every query, you MUST respond in the following JSON format: ```json { "thinking": "Your step-by-step reasoning process here.", ...
bc92fa65ea9f15c1e43c16625b89b4ff61428d35260b33485a2d3987ff635d0d
{ "data_origin": "game_history", "difficulty_range": null, "input_format": "description_input", "num_moves_applied": 9, "puzzle_id": null, "rating": null, "themes": null, "verification_includes_top_n_moves": null }
{ "applied_moves_uci": [ "f4f3", "e4b1", "g3g8", "b1f5", "c4b3", "f5g6", "b4d5", "g6f7", "g8g4" ], "attacked_targets": null, "best_move_uci": null, "board_fen": null, "castling_fen": null, "en_passant_square": null, "eval_category": null, "eval_cp": null, "eval_ma...
Describe the position of the FEN string: 2qrk2r/pp3pp1/2n2b1p/2Pn1b2/8/4PN1P/PP1BBPP1/1Q1RK2R w Kk - 3 17. Respond in JSON format with 'thinking' and 'answer' keys, putting the summary details as a structured object in the 'answer' field.
position_summary
fen_input
You are an exceptionally skilled Chess AI, designed to embody the combined strengths of a powerful playing engine, an insightful expert analyst, and a clear, instructive communicator. For every query, you MUST respond in the following JSON format: ```json { "thinking": "Your step-by-step reasoning process here.", ...
015e6e5173c4f475a4915f39bbcf352513a8315885b55a8a255abef5e0b19ad7
{ "data_origin": null, "difficulty_range": null, "input_format": null, "num_moves_applied": null, "puzzle_id": null, "rating": null, "themes": null, "verification_includes_top_n_moves": null }
{ "applied_moves_uci": null, "attacked_targets": null, "best_move_uci": null, "board_fen": "2qrk2r/pp3pp1/2n2b1p/2Pn1b2/8/4PN1P/PP1BBPP1/1Q1RK2R w Kk - 3 17", "castling_fen": "Kk", "en_passant_square": "-", "eval_category": null, "eval_cp": null, "eval_mate": null, "final_fen": null, "from_square"...
What is the best move in the following position: Current Position State: - Pieces: White: King on g5; Rook on f4. Black: King on g7. - Turn: It is Black's turn to move. - Castling Rights: No castling rights remain. - En Passant: There is no en passant target square. ? Respond in JSON format with 'thinking' and 'answer...
best_move
description_input
You are an exceptionally skilled Chess AI, designed to embody the combined strengths of a powerful playing engine, an insightful expert analyst, and a clear, instructive communicator. For every query, you MUST respond in the following JSON format: ```json { "thinking": "Your step-by-step reasoning process here.", ...
8a1a83ae8038b2e135ec9ae0b4f619a1a423f62093577868c45d0c7b27ed9c20
{ "data_origin": null, "difficulty_range": null, "input_format": null, "num_moves_applied": null, "puzzle_id": null, "rating": null, "themes": null, "verification_includes_top_n_moves": 5 }
{ "applied_moves_uci": null, "attacked_targets": null, "best_move_uci": "g7h7", "board_fen": null, "castling_fen": null, "en_passant_square": null, "eval_category": null, "eval_cp": null, "eval_mate": null, "final_fen": null, "from_square": null, "initial_fen": null, "is_game_over": null, "k...
Solve this chess puzzle. Given the position in FEN notation: 2r5/pp2k1p1/4p1p1/8/2p3R1/2n1P2P/P5P1/R5K1 w - - 0 27 - What is the best continuation? Respond with the sequence of moves in UCI format in the 'answer' field of the JSON output.
chess_puzzle_solving
puzzle_fen
You are an exceptionally skilled Chess AI, designed to embody the combined strengths of a powerful playing engine, an insightful expert analyst, and a clear, instructive communicator. For every query, you MUST respond in the following JSON format: ```json { "thinking": "Your step-by-step reasoning process here.", ...
afa0a4c428bdb07627353a9b37075ce4a67e8a994d80eea68ba6281ca8be4a76
{ "data_origin": null, "difficulty_range": "800", "input_format": null, "num_moves_applied": null, "puzzle_id": "3yCtH", "rating": 888, "themes": "crushing endgame fork short", "verification_includes_top_n_moves": null }
{ "applied_moves_uci": null, "attacked_targets": null, "best_move_uci": null, "board_fen": null, "castling_fen": null, "en_passant_square": null, "eval_category": null, "eval_cp": null, "eval_mate": null, "final_fen": null, "from_square": null, "initial_fen": null, "is_game_over": null, "kin...
What is the best move in the following position: Current Position State: - Pieces: White: King on e1; Rooks on d7, d8; Bishop on f5; Pawns on a4, e4, f4, g4, h5. Black: King on f6; Pawn on a5. - Turn: It is White's turn to move. - Castling Rights: No castling rights remain. - En Passant: There is no en passant target ...
best_move
description_input
You are an exceptionally skilled Chess AI, designed to embody the combined strengths of a powerful playing engine, an insightful expert analyst, and a clear, instructive communicator. For every query, you MUST respond in the following JSON format: ```json { "thinking": "Your step-by-step reasoning process here.", ...
b8ae22aa7c69b96a68273bb9c9b90b0b140ae465dc27c223031bbb9b07821df9
{ "data_origin": null, "difficulty_range": null, "input_format": null, "num_moves_applied": null, "puzzle_id": null, "rating": null, "themes": null, "verification_includes_top_n_moves": 5 }
{ "applied_moves_uci": null, "attacked_targets": null, "best_move_uci": "e4e5", "board_fen": null, "castling_fen": null, "en_passant_square": null, "eval_category": null, "eval_cp": null, "eval_mate": null, "final_fen": null, "from_square": null, "initial_fen": null, "is_game_over": null, "k...
Solve this chess puzzle. Given the position in FEN notation: 8/8/5p1p/b4Pp1/2k3P1/3p2BP/8/3K4 b - - 3 55 - What is the best continuation? Respond with the sequence of moves in UCI format in the 'answer' field of the JSON output.
chess_puzzle_solving
puzzle_fen
You are an exceptionally skilled Chess AI, designed to embody the combined strengths of a powerful playing engine, an insightful expert analyst, and a clear, instructive communicator. For every query, you MUST respond in the following JSON format: ```json { "thinking": "Your step-by-step reasoning process here.", ...
adde0f4b77686532c97f02a19458b9cb7116184d1ed14915e4798c5a539a3ee4
{ "data_origin": null, "difficulty_range": "900", "input_format": null, "num_moves_applied": null, "puzzle_id": "S4WO0", "rating": 997, "themes": "bishopEndgame crushing endgame short skewer", "verification_includes_top_n_moves": null }
{ "applied_moves_uci": null, "attacked_targets": null, "best_move_uci": null, "board_fen": null, "castling_fen": null, "en_passant_square": null, "eval_category": null, "eval_cp": null, "eval_mate": null, "final_fen": null, "from_square": null, "initial_fen": null, "is_game_over": null, "kin...
What is the best move in the FEN string: 8/p3bp1k/5p2/1r3P1p/8/8/8/6K1 w - - 0 57? Respond in JSON format with 'thinking' and 'answer' keys, putting the move in UCI format in the 'answer' field.
best_move
fen_input
You are an exceptionally skilled Chess AI, designed to embody the combined strengths of a powerful playing engine, an insightful expert analyst, and a clear, instructive communicator. For every query, you MUST respond in the following JSON format: ```json { "thinking": "Your step-by-step reasoning process here.", ...
0dae2da7b40bb9cd9552ec3da1b6d61879bda004c8ea04fd8bfcbabe78fc2578
{ "data_origin": null, "difficulty_range": null, "input_format": null, "num_moves_applied": null, "puzzle_id": null, "rating": null, "themes": null, "verification_includes_top_n_moves": 5 }
{ "applied_moves_uci": null, "attacked_targets": null, "best_move_uci": "g1f1", "board_fen": null, "castling_fen": null, "en_passant_square": null, "eval_category": null, "eval_cp": null, "eval_mate": null, "final_fen": null, "from_square": null, "initial_fen": null, "is_game_over": null, "k...
Describe the position of the FEN string: 5k2/1R6/6B1/R7/P7/K7/1P6/8 w - - 17 67. Respond in JSON format with 'thinking' and 'answer' keys, putting the summary details as a structured object in the 'answer' field.
position_summary
fen_input
You are an exceptionally skilled Chess AI, designed to embody the combined strengths of a powerful playing engine, an insightful expert analyst, and a clear, instructive communicator. For every query, you MUST respond in the following JSON format: ```json { "thinking": "Your step-by-step reasoning process here.", ...
a51ad719467ac3e7dbd555228e25d5bad9926e114423a6eb3c2a70a9bf0ec787
{ "data_origin": null, "difficulty_range": null, "input_format": null, "num_moves_applied": null, "puzzle_id": null, "rating": null, "themes": null, "verification_includes_top_n_moves": null }
{ "applied_moves_uci": null, "attacked_targets": null, "best_move_uci": null, "board_fen": "5k2/1R6/6B1/R7/P7/K7/1P6/8 w - - 17 67", "castling_fen": "-", "en_passant_square": "-", "eval_category": null, "eval_cp": null, "eval_mate": null, "final_fen": null, "from_square": null, "initial_fen": nu...
What is the best move in the FEN string: 8/5r2/1R6/B7/2k5/5K2/8/8 w - - 7 72? Respond in JSON format with 'thinking' and 'answer' keys, putting the move in UCI format in the 'answer' field.
best_move
fen_input
You are an exceptionally skilled Chess AI, designed to embody the combined strengths of a powerful playing engine, an insightful expert analyst, and a clear, instructive communicator. For every query, you MUST respond in the following JSON format: ```json { "thinking": "Your step-by-step reasoning process here.", ...
913c7d29f4c821dbf8b45119d127285c37069fdedde1c813838f6c8ee2942a1f
{ "data_origin": null, "difficulty_range": null, "input_format": null, "num_moves_applied": null, "puzzle_id": null, "rating": null, "themes": null, "verification_includes_top_n_moves": 5 }
{ "applied_moves_uci": null, "attacked_targets": null, "best_move_uci": "f3e2", "board_fen": null, "castling_fen": null, "en_passant_square": null, "eval_category": null, "eval_cp": null, "eval_mate": null, "final_fen": null, "from_square": null, "initial_fen": null, "is_game_over": null, "k...
Given the chess position represented by the following position: Current Position State: - Pieces: White: King on h4; Queen on g6; Pawn on f4. Black: King on c5. - Turn: It is White's turn to move. - Castling Rights: No castling rights remain. - En Passant: There is no en passant target square. , apply the following se...
predict_fen_after_moves
description_input
You are an exceptionally skilled Chess AI, designed to embody the combined strengths of a powerful playing engine, an insightful expert analyst, and a clear, instructive communicator. For every query, you MUST respond in the following JSON format: ```json { "thinking": "Your step-by-step reasoning process here.", ...
6d3ab3d2d40ccef4b0b86a7a371edeede6b4aa994e39e80c39cfd08afd9c8e08
{ "data_origin": "game_history", "difficulty_range": null, "input_format": "description_input", "num_moves_applied": 11, "puzzle_id": null, "rating": null, "themes": null, "verification_includes_top_n_moves": null }
{ "applied_moves_uci": [ "g6g7", "c5b5", "g7c3", "b5b6", "c3d2", "b6b5", "d2d4", "b5a6", "h4h5", "a6b5", "d4e4" ], "attacked_targets": null, "best_move_uci": null, "board_fen": null, "castling_fen": null, "en_passant_square": null, "eval_category": null, "ev...
What is the best move in the following position: Current Position State: - Pieces: White: King on g2; Rooks on d2, h1; Bishop on f3; Pawns on a4, b3, d4, e3, f2, h4. Black: King on g8; Queen on e7; Rooks on c7, f8; Pawns on a5, b7, d5, e5, e6, g6, h5. - Turn: It is White's turn to move. - Castling Rights: No castling ...
best_move
description_input
You are an exceptionally skilled Chess AI, designed to embody the combined strengths of a powerful playing engine, an insightful expert analyst, and a clear, instructive communicator. For every query, you MUST respond in the following JSON format: ```json { "thinking": "Your step-by-step reasoning process here.", ...
8152755e71d930ceae66ec61c320e8260124c959bbfb1cf646d04a891f7e3bd6
{ "data_origin": null, "difficulty_range": null, "input_format": null, "num_moves_applied": null, "puzzle_id": null, "rating": null, "themes": null, "verification_includes_top_n_moves": 5 }
{ "applied_moves_uci": null, "attacked_targets": null, "best_move_uci": "d4e5", "board_fen": null, "castling_fen": null, "en_passant_square": null, "eval_category": null, "eval_cp": null, "eval_mate": null, "final_fen": null, "from_square": null, "initial_fen": null, "is_game_over": null, "k...
Which pieces are currently under attack in the FEN string: 8/5p1k/3rb1p1/1p5p/4B2P/4K1P1/8/R7 b - - 3 41? Respond in JSON format with 'thinking' and 'answer' keys, putting a list of the attacked pieces in the 'answer' field.
pieces_under_attack
fen_input
You are an exceptionally skilled Chess AI, designed to embody the combined strengths of a powerful playing engine, an insightful expert analyst, and a clear, instructive communicator. For every query, you MUST respond in the following JSON format: ```json { "thinking": "Your step-by-step reasoning process here.", ...
25659bcebf45ec3d659302dccba8c60fa93de3916b8ec4a0700fe4b904e9b2f8
{ "data_origin": null, "difficulty_range": null, "input_format": null, "num_moves_applied": null, "puzzle_id": null, "rating": null, "themes": null, "verification_includes_top_n_moves": null }
{ "applied_moves_uci": null, "attacked_targets": [ { "color": "black", "piece_type": "pawn", "square": "g6" } ], "best_move_uci": null, "board_fen": null, "castling_fen": null, "en_passant_square": null, "eval_category": null, "eval_cp": null, "eval_mate": null, "final_fe...
What is the best move in the following position: Current Position State: - Pieces: White: King on b1; Queen on c2; Rooks on c1, e1; Bishops on d1, d2; Knight on f3; Pawns on a4, b2, d4, e5, f2, g2, h5. Black: King on g8; Queen on c6; Rooks on c7, f8; Bishops on c4, e7; Pawns on a6, b6, d5, e6, f7, g7, h6. - Turn: It i...
best_move
description_input
You are an exceptionally skilled Chess AI, designed to embody the combined strengths of a powerful playing engine, an insightful expert analyst, and a clear, instructive communicator. For every query, you MUST respond in the following JSON format: ```json { "thinking": "Your step-by-step reasoning process here.", ...
c1483fcc5b0139a38f6a5f379194b6b796a4827c0e74e1fd20a4cb7200dd6c08
{ "data_origin": null, "difficulty_range": null, "input_format": null, "num_moves_applied": null, "puzzle_id": null, "rating": null, "themes": null, "verification_includes_top_n_moves": 5 }
{ "applied_moves_uci": null, "attacked_targets": null, "best_move_uci": "b1a1", "board_fen": null, "castling_fen": null, "en_passant_square": null, "eval_category": null, "eval_cp": null, "eval_mate": null, "final_fen": null, "from_square": null, "initial_fen": null, "is_game_over": null, "k...
Solve this chess puzzle. Given the position in FEN notation: 5rk1/1p2b1p1/p2p3p/4prn1/3p1Pq1/P2P2P1/1PPBNQ1P/R4R1K b - - 7 22 - What is the best continuation? Respond with the sequence of moves in UCI format in the 'answer' field of the JSON output.
chess_puzzle_solving
puzzle_fen
You are an exceptionally skilled Chess AI, designed to embody the combined strengths of a powerful playing engine, an insightful expert analyst, and a clear, instructive communicator. For every query, you MUST respond in the following JSON format: ```json { "thinking": "Your step-by-step reasoning process here.", ...
4195a0235ea8a5732ba0156af3e955a2864f1b10418d5a68dca335fa4950d538
{ "data_origin": null, "difficulty_range": "1100", "input_format": null, "num_moves_applied": null, "puzzle_id": "Mpkr1", "rating": 1160, "themes": "advantage middlegame short", "verification_includes_top_n_moves": null }
{ "applied_moves_uci": null, "attacked_targets": null, "best_move_uci": null, "board_fen": null, "castling_fen": null, "en_passant_square": null, "eval_category": null, "eval_cp": null, "eval_mate": null, "final_fen": null, "from_square": null, "initial_fen": null, "is_game_over": null, "kin...
Solve this chess puzzle. Given the position in FEN notation: 8/1pR5/p5k1/8/P2pP3/1P1P3p/3r3P/7K w - - 1 40 - What is the best continuation? Respond with the sequence of moves in UCI format in the 'answer' field of the JSON output.
chess_puzzle_solving
puzzle_fen
You are an exceptionally skilled Chess AI, designed to embody the combined strengths of a powerful playing engine, an insightful expert analyst, and a clear, instructive communicator. For every query, you MUST respond in the following JSON format: ```json { "thinking": "Your step-by-step reasoning process here.", ...
dad34187d6f1713a7bbdd01cb4033aa2764398166d20983342fe10f440469818
{ "data_origin": null, "difficulty_range": "400", "input_format": null, "num_moves_applied": null, "puzzle_id": "DQu0x", "rating": 459, "themes": "endgame mate mateIn1 oneMove rookEndgame", "verification_includes_top_n_moves": null }
{ "applied_moves_uci": null, "attacked_targets": null, "best_move_uci": null, "board_fen": null, "castling_fen": null, "en_passant_square": null, "eval_category": null, "eval_cp": null, "eval_mate": null, "final_fen": null, "from_square": null, "initial_fen": null, "is_game_over": null, "kin...
Who is winning in the following position: Current Position State: - Pieces: White: King on d1; Rook on b8; Bishop on e7. Black: King on c4; Bishop on c5; Pawns on b5, d6, e5, f5. - Turn: It is Black's turn to move. - Castling Rights: No castling rights remain. - En Passant: There is no en passant target square. ? Resp...
evaluate_position
description_input
You are an exceptionally skilled Chess AI, designed to embody the combined strengths of a powerful playing engine, an insightful expert analyst, and a clear, instructive communicator. For every query, you MUST respond in the following JSON format: ```json { "thinking": "Your step-by-step reasoning process here.", ...
514ec4b0cbd89cf36a5199ecfef4d19ad4c3a42045e117d7860653a962a7dc3e
{ "data_origin": null, "difficulty_range": null, "input_format": null, "num_moves_applied": null, "puzzle_id": null, "rating": null, "themes": null, "verification_includes_top_n_moves": null }
{ "applied_moves_uci": null, "attacked_targets": null, "best_move_uci": null, "board_fen": null, "castling_fen": null, "en_passant_square": null, "eval_category": "equal", "eval_cp": 0, "eval_mate": null, "final_fen": null, "from_square": null, "initial_fen": null, "is_game_over": null, "kin...
Given the chess position represented by the FEN string: 2r3kb/pr2pp1p/1p6/6pP/P3p3/2P3B1/1P3PP1/R2K3R w - - 5 25, apply the following sequence of moves in UCI notation: f2f3, e4f3, g2f3, f7f5, g3f2, f5f4, d1c2, g8f8, a1d1, f8f7, a4a5, h8g7. What is the FEN string of the resulting position after all these moves have bee...
predict_fen_after_moves
fen_input
You are an exceptionally skilled Chess AI, designed to embody the combined strengths of a powerful playing engine, an insightful expert analyst, and a clear, instructive communicator. For every query, you MUST respond in the following JSON format: ```json { "thinking": "Your step-by-step reasoning process here.", ...
c8e53a169b86fd08cc013bdac54034aa533b44533c02eb0b48256b49bc2b9fb5
{ "data_origin": "game_history", "difficulty_range": null, "input_format": "fen_input", "num_moves_applied": 12, "puzzle_id": null, "rating": null, "themes": null, "verification_includes_top_n_moves": null }
{ "applied_moves_uci": [ "f2f3", "e4f3", "g2f3", "f7f5", "g3f2", "f5f4", "d1c2", "g8f8", "a1d1", "f8f7", "a4a5", "h8g7" ], "attacked_targets": null, "best_move_uci": null, "board_fen": null, "castling_fen": null, "en_passant_square": null, "eval_category":...
What is the best move in the following position: Current Position State: - Pieces: White: King on b1; Queen on f4; Rooks on d1, g5; Bishop on b2; Knight on d2; Pawns on a4, b5, d6, e4, f2. Black: King on g8; Queen on d8; Rooks on c4, e8; Bishops on d7, g7; Knight on g4; Pawns on b7, e5, f7, h3. - Turn: It is White's t...
best_move
description_input
You are an exceptionally skilled Chess AI, designed to embody the combined strengths of a powerful playing engine, an insightful expert analyst, and a clear, instructive communicator. For every query, you MUST respond in the following JSON format: ```json { "thinking": "Your step-by-step reasoning process here.", ...
321229460341b11944b6db8802fb1912a59939b16731b4262f3f88240b245db5
{ "data_origin": null, "difficulty_range": null, "input_format": null, "num_moves_applied": null, "puzzle_id": null, "rating": null, "themes": null, "verification_includes_top_n_moves": 5 }
{ "applied_moves_uci": null, "attacked_targets": null, "best_move_uci": "g5g7", "board_fen": null, "castling_fen": null, "en_passant_square": null, "eval_category": null, "eval_cp": null, "eval_mate": null, "final_fen": null, "from_square": null, "initial_fen": null, "is_game_over": null, "k...
Which pieces are currently under attack in the following position: Current Position State: - Pieces: White: King on g1; Queen on b4; Rooks on c1, c7; Pawns on d4, f2, g2, h3. Black: King on h7; Queen on e6; Rooks on d7, e8; Pawns on a6, d5, g6, g7, h6. - Turn: It is White's turn to move. - Castling Rights: No castling...
pieces_under_attack
description_input
You are an exceptionally skilled Chess AI, designed to embody the combined strengths of a powerful playing engine, an insightful expert analyst, and a clear, instructive communicator. For every query, you MUST respond in the following JSON format: ```json { "thinking": "Your step-by-step reasoning process here.", ...
d2d13048d3ca8ef99e32b047919d5e3278003f23e16af52b5e39a076fbcb85f5
{ "data_origin": null, "difficulty_range": null, "input_format": null, "num_moves_applied": null, "puzzle_id": null, "rating": null, "themes": null, "verification_includes_top_n_moves": null }
{ "applied_moves_uci": null, "attacked_targets": [ { "color": "white", "piece_type": "rook", "square": "c7" }, { "color": "black", "piece_type": "rook", "square": "d7" }, { "color": "white", "piece_type": "pawn", "square": "h3" } ], "...
Given the chess position represented by the FEN string: 8/8/1p3p1p/1P6/P4k1P/2p4K/3r4/2q5 w - - 0 67, apply the following sequence of moves in UCI notation: a4a5. What is the FEN string of the resulting position after all these moves have been made? Respond in JSON format with 'thinking' and 'answer' keys, putting the ...
predict_fen_after_moves
fen_input
You are an exceptionally skilled Chess AI, designed to embody the combined strengths of a powerful playing engine, an insightful expert analyst, and a clear, instructive communicator. For every query, you MUST respond in the following JSON format: ```json { "thinking": "Your step-by-step reasoning process here.", ...
dc0505cba539204c1ad1526a0292cf27c58507794b4fd1942a45bff597a77653
{ "data_origin": "game_history", "difficulty_range": null, "input_format": "fen_input", "num_moves_applied": 1, "puzzle_id": null, "rating": null, "themes": null, "verification_includes_top_n_moves": null }
{ "applied_moves_uci": [ "a4a5" ], "attacked_targets": null, "best_move_uci": null, "board_fen": null, "castling_fen": null, "en_passant_square": null, "eval_category": null, "eval_cp": null, "eval_mate": null, "final_fen": "8/8/1p3p1p/PP6/5k1P/2p4K/3r4/2q5 b - - 0 67", "from_square": null, ...
What is the best move in the FEN string: 5r1k/7p/2p5/pp2R3/5P2/1B6/1PP3q1/1K1R4 b - - 3 35? Respond in JSON format with 'thinking' and 'answer' keys, putting the move in UCI format in the 'answer' field.
best_move
fen_input
You are an exceptionally skilled Chess AI, designed to embody the combined strengths of a powerful playing engine, an insightful expert analyst, and a clear, instructive communicator. For every query, you MUST respond in the following JSON format: ```json { "thinking": "Your step-by-step reasoning process here.", ...
d9599feab239b96899eca2e8764b825bf3545ba5e3fe0bf5097a3c29260619a0
{ "data_origin": null, "difficulty_range": null, "input_format": null, "num_moves_applied": null, "puzzle_id": null, "rating": null, "themes": null, "verification_includes_top_n_moves": 5 }
{ "applied_moves_uci": null, "attacked_targets": null, "best_move_uci": "a5a4", "board_fen": null, "castling_fen": null, "en_passant_square": null, "eval_category": null, "eval_cp": null, "eval_mate": null, "final_fen": null, "from_square": null, "initial_fen": null, "is_game_over": null, "k...
What is the best move in the following position: Current Position State: - Pieces: White: King on d5; Rook on h8; Bishops on c4, e5; Pawn on d6. Black: King on g5; Rook on c1. - Turn: It is White's turn to move. - Castling Rights: No castling rights remain. - En Passant: There is no en passant target square. ? Respond...
best_move
description_input
You are an exceptionally skilled Chess AI, designed to embody the combined strengths of a powerful playing engine, an insightful expert analyst, and a clear, instructive communicator. For every query, you MUST respond in the following JSON format: ```json { "thinking": "Your step-by-step reasoning process here.", ...
782728e0d4bb577b54d9b4f61e7364bdf065bae53439cbc585f37ba9a4c5ce35
{ "data_origin": null, "difficulty_range": null, "input_format": null, "num_moves_applied": null, "puzzle_id": null, "rating": null, "themes": null, "verification_includes_top_n_moves": 5 }
{ "applied_moves_uci": null, "attacked_targets": null, "best_move_uci": "d6d7", "board_fen": null, "castling_fen": null, "en_passant_square": null, "eval_category": null, "eval_cp": null, "eval_mate": null, "final_fen": null, "from_square": null, "initial_fen": null, "is_game_over": null, "k...
Which pieces are currently under attack in the following position: Current Position State: - Pieces: White: King on h8; Bishop on f4; Pawns on a5, b5, e7, h6. Black: King on e8; Bishop on g6. - Turn: It is Black's turn to move. - Castling Rights: No castling rights remain. - En Passant: There is no en passant target s...
pieces_under_attack
description_input
You are an exceptionally skilled Chess AI, designed to embody the combined strengths of a powerful playing engine, an insightful expert analyst, and a clear, instructive communicator. For every query, you MUST respond in the following JSON format: ```json { "thinking": "Your step-by-step reasoning process here.", ...
64541059699b3cd6f2b80eea9aa54b98702c12c15083de8f56b1804c63e7ca0e
{ "data_origin": null, "difficulty_range": null, "input_format": null, "num_moves_applied": null, "puzzle_id": null, "rating": null, "themes": null, "verification_includes_top_n_moves": null }
{ "applied_moves_uci": null, "attacked_targets": [ { "color": "white", "piece_type": "pawn", "square": "e7" } ], "best_move_uci": null, "board_fen": null, "castling_fen": null, "en_passant_square": null, "eval_category": null, "eval_cp": null, "eval_mate": null, "final_fe...
What is the best move in the FEN string: 8/8/b7/r2n4/3k2K1/8/5p2/8 w - - 2 84? Respond in JSON format with 'thinking' and 'answer' keys, putting the move in UCI format in the 'answer' field.
best_move
fen_input
You are an exceptionally skilled Chess AI, designed to embody the combined strengths of a powerful playing engine, an insightful expert analyst, and a clear, instructive communicator. For every query, you MUST respond in the following JSON format: ```json { "thinking": "Your step-by-step reasoning process here.", ...
51dfd809e2e180948e001df03434ddab310cf2d9661b5adefef8166e8f4a7485
{ "data_origin": null, "difficulty_range": null, "input_format": null, "num_moves_applied": null, "puzzle_id": null, "rating": null, "themes": null, "verification_includes_top_n_moves": 5 }
{ "applied_moves_uci": null, "attacked_targets": null, "best_move_uci": "g4f5", "board_fen": null, "castling_fen": null, "en_passant_square": null, "eval_category": null, "eval_cp": null, "eval_mate": null, "final_fen": null, "from_square": null, "initial_fen": null, "is_game_over": null, "k...
What is the best move in the FEN string: r1bqkb1r/pp1n1pp1/2pp1n2/3Pp1Bp/1P2P1PP/2N2P1N/P1P5/R2QKB1R w KQkq - 0 11? Respond in JSON format with 'thinking' and 'answer' keys, putting the move in UCI format in the 'answer' field.
best_move
fen_input
You are an exceptionally skilled Chess AI, designed to embody the combined strengths of a powerful playing engine, an insightful expert analyst, and a clear, instructive communicator. For every query, you MUST respond in the following JSON format: ```json { "thinking": "Your step-by-step reasoning process here.", ...
e0c8755447ae76e395a33e812b7d5ce3b919879eee0e31b7ad1295769acf8acf
{ "data_origin": null, "difficulty_range": null, "input_format": null, "num_moves_applied": null, "puzzle_id": null, "rating": null, "themes": null, "verification_includes_top_n_moves": 5 }
{ "applied_moves_uci": null, "attacked_targets": null, "best_move_uci": "h3f2", "board_fen": null, "castling_fen": null, "en_passant_square": null, "eval_category": null, "eval_cp": null, "eval_mate": null, "final_fen": null, "from_square": null, "initial_fen": null, "is_game_over": null, "k...
What is the best move in the following position: Current Position State: - Pieces: White: King on h1; Rook on d7; Bishop on g8; Knight on f4; Pawns on b5, e4, g2. Black: King on h6; Rook on c6; Pawns on b6, f6, h2. - Turn: It is White's turn to move. - Castling Rights: No castling rights remain. - En Passant: There is...
best_move
description_input
You are an exceptionally skilled Chess AI, designed to embody the combined strengths of a powerful playing engine, an insightful expert analyst, and a clear, instructive communicator. For every query, you MUST respond in the following JSON format: ```json { "thinking": "Your step-by-step reasoning process here.", ...
5e3b8b344323d3f33ab458088c5059da7ab05b5edebb5ea87e19da5bfee84dc0
{ "data_origin": null, "difficulty_range": null, "input_format": null, "num_moves_applied": null, "puzzle_id": null, "rating": null, "themes": null, "verification_includes_top_n_moves": 5 }
{ "applied_moves_uci": null, "attacked_targets": null, "best_move_uci": "b5c6", "board_fen": null, "castling_fen": null, "en_passant_square": null, "eval_category": null, "eval_cp": null, "eval_mate": null, "final_fen": null, "from_square": null, "initial_fen": null, "is_game_over": null, "k...
List all legal moves for the piece on square a3 in the FEN string: 8/5p2/1r4pk/1p5p/2b4P/R5P1/2K5/3B4 w - - 14 47. Respond in JSON format with 'thinking' and 'answer' keys, putting a list of the moves in UCI format in the 'answer' field.
legal_move_generation
fen_input
You are an exceptionally skilled Chess AI, designed to embody the combined strengths of a powerful playing engine, an insightful expert analyst, and a clear, instructive communicator. For every query, you MUST respond in the following JSON format: ```json { "thinking": "Your step-by-step reasoning process here.", ...
1af08ec0f1debfea7e2676de4bade53e49fd1e7e7fe0048d79e6b4137f9530db
{ "data_origin": null, "difficulty_range": null, "input_format": null, "num_moves_applied": null, "puzzle_id": null, "rating": null, "themes": null, "verification_includes_top_n_moves": null }
{ "applied_moves_uci": null, "attacked_targets": null, "best_move_uci": null, "board_fen": null, "castling_fen": null, "en_passant_square": null, "eval_category": null, "eval_cp": null, "eval_mate": null, "final_fen": null, "from_square": "a3", "initial_fen": null, "is_game_over": false, "ki...
What is the best move in the FEN string: r3kr2/1p3q2/2pp2p1/4bb2/p1PN4/P1N1PPpP/1P1Q2P1/2R1K1R1 w q - 1 25? Respond in JSON format with 'thinking' and 'answer' keys, putting the move in UCI format in the 'answer' field.
best_move
fen_input
You are an exceptionally skilled Chess AI, designed to embody the combined strengths of a powerful playing engine, an insightful expert analyst, and a clear, instructive communicator. For every query, you MUST respond in the following JSON format: ```json { "thinking": "Your step-by-step reasoning process here.", ...
ff8d1fe6eec7584bdf0c118d9ca35b9a0d04665e5be2a94b5c8d22e0a521febf
{ "data_origin": null, "difficulty_range": null, "input_format": null, "num_moves_applied": null, "puzzle_id": null, "rating": null, "themes": null, "verification_includes_top_n_moves": 5 }
{ "applied_moves_uci": null, "attacked_targets": null, "best_move_uci": "g1h1", "board_fen": null, "castling_fen": null, "en_passant_square": null, "eval_category": null, "eval_cp": null, "eval_mate": null, "final_fen": null, "from_square": null, "initial_fen": null, "is_game_over": null, "k...
Given the chess position represented by the following position: Current Position State: - Pieces: White: King on g1; Queen on c2; Rooks on a1, f1; Bishops on c1, g2; Knights on c3, f3; Pawns on a2, b2, c4, d4, e2, f2, g3, h2. Black: King on e8; Queen on d8; Rooks on a8, h8; Bishops on c8, e7; Knights on d7, f6; Pawns ...
predict_fen_after_moves
description_input
You are an exceptionally skilled Chess AI, designed to embody the combined strengths of a powerful playing engine, an insightful expert analyst, and a clear, instructive communicator. For every query, you MUST respond in the following JSON format: ```json { "thinking": "Your step-by-step reasoning process here.", ...
cbfaa98ad42a372033fcd36ac53013ccc5a62225fff8ad95c0dab0d38e14970c
{ "data_origin": "game_history", "difficulty_range": null, "input_format": "description_input", "num_moves_applied": 15, "puzzle_id": null, "rating": null, "themes": null, "verification_includes_top_n_moves": null }
{ "applied_moves_uci": [ "e5d4", "c3b1", "d7b6", "f3d4", "b6c4", "b1c3", "c8f5", "d4f5", "e8g8", "f5e7", "d8e7", "c1f4", "c4d6", "h2h4", "a8e8" ], "attacked_targets": null, "best_move_uci": null, "board_fen": null, "castling_fen": null, "en_passa...
List all legal moves for the piece on square e1 in the following position: Current Position State: - Pieces: White: King on e2; Bishops on b1, e1; Pawns on a3, c3, d4, f3, g4, h5. Black: King on g8; Bishop on e6; Knight on d5; Pawns on a5, b5, c4, g7, h6. - Turn: It is White's turn to move. - Castling Rights: No castl...
legal_move_generation
description_input
You are an exceptionally skilled Chess AI, designed to embody the combined strengths of a powerful playing engine, an insightful expert analyst, and a clear, instructive communicator. For every query, you MUST respond in the following JSON format: ```json { "thinking": "Your step-by-step reasoning process here.", ...
ec1270c4c04d1e9b7473de7bb88192a39825af3da72a083e2e79b80ed423f6bb
{ "data_origin": null, "difficulty_range": null, "input_format": null, "num_moves_applied": null, "puzzle_id": null, "rating": null, "themes": null, "verification_includes_top_n_moves": null }
{ "applied_moves_uci": null, "attacked_targets": null, "best_move_uci": null, "board_fen": null, "castling_fen": null, "en_passant_square": null, "eval_category": null, "eval_cp": null, "eval_mate": null, "final_fen": null, "from_square": "e1", "initial_fen": null, "is_game_over": false, "ki...
Which pieces are currently under attack in the following position: Current Position State: - Pieces: White: King on e1; Queen on d1; Rooks on a1, h1; Bishops on c1, e2; Knights on c3, g1; Pawns on a2, b2, c4, d5, e4, f2, h3. Black: King on e8; Queen on d8; Rooks on a8, h4; Bishops on c8, g7; Knights on b8, e7; Pawns o...
pieces_under_attack
description_input
You are an exceptionally skilled Chess AI, designed to embody the combined strengths of a powerful playing engine, an insightful expert analyst, and a clear, instructive communicator. For every query, you MUST respond in the following JSON format: ```json { "thinking": "Your step-by-step reasoning process here.", ...
e104b224893f6106b4b0ca9d448087df361cf55c5908f223bfa5de5cc3881039
{ "data_origin": null, "difficulty_range": null, "input_format": null, "num_moves_applied": null, "puzzle_id": null, "rating": null, "themes": null, "verification_includes_top_n_moves": null }
{ "applied_moves_uci": null, "attacked_targets": [ { "color": "white", "piece_type": "pawn", "square": "d5" }, { "color": "white", "piece_type": "pawn", "square": "e4" }, { "color": "white", "piece_type": "pawn", "square": "h3" } ], "...
Given the chess position represented by the following position: Current Position State: - Pieces: White: King on g2; Queen on c2; Rooks on a1, h1; Bishop on c1; Knights on b1, g1; Pawns on a4, b2, d3, e2, f3, g3, h2. Black: King on g8; Queen on d8; Rooks on a8, f8; Bishops on c8, e7; Knight on c6; Pawns on a7, b7, d4,...
predict_fen_after_moves
description_input
You are an exceptionally skilled Chess AI, designed to embody the combined strengths of a powerful playing engine, an insightful expert analyst, and a clear, instructive communicator. For every query, you MUST respond in the following JSON format: ```json { "thinking": "Your step-by-step reasoning process here.", ...
6e966514d4c0f93ad56805775b124f1375c25692e9e43de3ff483df8d79578db
{ "data_origin": "game_history", "difficulty_range": null, "input_format": "description_input", "num_moves_applied": 13, "puzzle_id": null, "rating": null, "themes": null, "verification_includes_top_n_moves": null }
{ "applied_moves_uci": [ "c8e6", "h2h4", "c6b4", "c2d1", "b4d5", "a4a5", "h7h6", "g1h3", "e7b4", "h3f2", "f7f6", "c1d2", "f6f5" ], "attacked_targets": null, "best_move_uci": null, "board_fen": null, "castling_fen": null, "en_passant_square": null, "eva...
List all legal moves for the piece on square g1 in the FEN string: 1Q6/5p1k/6pp/4bp2/1pq5/7P/1r2R2K/6R1 w - - 22 56. Respond in JSON format with 'thinking' and 'answer' keys, putting a list of the moves in UCI format in the 'answer' field.
legal_move_generation
fen_input
You are an exceptionally skilled Chess AI, designed to embody the combined strengths of a powerful playing engine, an insightful expert analyst, and a clear, instructive communicator. For every query, you MUST respond in the following JSON format: ```json { "thinking": "Your step-by-step reasoning process here.", ...
98a8a0fb658feaf907764e801aa8163317cc37c3a4686e74827b32c0107108f0
{ "data_origin": null, "difficulty_range": null, "input_format": null, "num_moves_applied": null, "puzzle_id": null, "rating": null, "themes": null, "verification_includes_top_n_moves": null }
{ "applied_moves_uci": null, "attacked_targets": null, "best_move_uci": null, "board_fen": null, "castling_fen": null, "en_passant_square": null, "eval_category": null, "eval_cp": null, "eval_mate": null, "final_fen": null, "from_square": "g1", "initial_fen": null, "is_game_over": false, "ki...
What is the best move in the FEN string: 8/3Q1pk1/3P2p1/4p1bp/4P3/3q2P1/1r3PK1/4R3 b - - 2 59? Respond in JSON format with 'thinking' and 'answer' keys, putting the move in UCI format in the 'answer' field.
best_move
fen_input
You are an exceptionally skilled Chess AI, designed to embody the combined strengths of a powerful playing engine, an insightful expert analyst, and a clear, instructive communicator. For every query, you MUST respond in the following JSON format: ```json { "thinking": "Your step-by-step reasoning process here.", ...
96b51daf383c3bab51f29950dd9b2301b800b52351e75c7d9f4dc08c4610f5f7
{ "data_origin": null, "difficulty_range": null, "input_format": null, "num_moves_applied": null, "puzzle_id": null, "rating": null, "themes": null, "verification_includes_top_n_moves": 5 }
{ "applied_moves_uci": null, "attacked_targets": null, "best_move_uci": "b2c2", "board_fen": null, "castling_fen": null, "en_passant_square": null, "eval_category": null, "eval_cp": null, "eval_mate": null, "final_fen": null, "from_square": null, "initial_fen": null, "is_game_over": null, "k...
Which pieces are currently under attack in the FEN string: 3n1k1r/rp1bq3/2p3p1/p2pPpP1/P2P3P/1P1N2K1/1R1QB1P1/7R w - - 0 44? Respond in JSON format with 'thinking' and 'answer' keys, putting a list of the attacked pieces in the 'answer' field.
pieces_under_attack
fen_input
You are an exceptionally skilled Chess AI, designed to embody the combined strengths of a powerful playing engine, an insightful expert analyst, and a clear, instructive communicator. For every query, you MUST respond in the following JSON format: ```json { "thinking": "Your step-by-step reasoning process here.", ...
fbd30db590e02d8ed3c0f5194e442cc41b9bc89ceaef3a73512e3e245bb28642
{ "data_origin": null, "difficulty_range": null, "input_format": null, "num_moves_applied": null, "puzzle_id": null, "rating": null, "themes": null, "verification_includes_top_n_moves": null }
{ "applied_moves_uci": null, "attacked_targets": [ { "color": "black", "piece_type": "pawn", "square": "a5" }, { "color": "white", "piece_type": "pawn", "square": "e5" }, { "color": "white", "piece_type": "pawn", "square": "g5" }, { ...
Given the chess position represented by the following position: Current Position State: - Pieces: White: King on d1; Rooks on a1, h1; Bishop on f2; Pawns on a4, b2, c3, f3, h5. Black: King on g8; Rooks on b7, c8; Bishop on h8; Pawns on a7, b6, e7, f4, g5, h7. - Turn: It is White's turn to move. - Castling Rights: No c...
predict_fen_after_moves
description_input
You are an exceptionally skilled Chess AI, designed to embody the combined strengths of a powerful playing engine, an insightful expert analyst, and a clear, instructive communicator. For every query, you MUST respond in the following JSON format: ```json { "thinking": "Your step-by-step reasoning process here.", ...
5ef4e45da5b8505ce2471f39f44eaa41e492a2d0636356eefd5e871090b6eaba
{ "data_origin": "game_history", "difficulty_range": null, "input_format": "description_input", "num_moves_applied": 13, "puzzle_id": null, "rating": null, "themes": null, "verification_includes_top_n_moves": null }
{ "applied_moves_uci": [ "d1c2", "g8f8", "a1d1", "f8f7", "a4a5", "h8g7", "a5a6", "b7c7", "h1g1", "g7f6", "d1d5", "c8f8", "g1c1" ], "attacked_targets": null, "best_move_uci": null, "board_fen": null, "castling_fen": null, "en_passant_square": null, "eva...
What is the best move in the FEN string: 3k1b1r/1rppnqpp/p4p2/1p5P/3P3R/P3BNP1/1P1NQP2/1K2R3 b - - 1 21? Respond in JSON format with 'thinking' and 'answer' keys, putting the move in UCI format in the 'answer' field.
best_move
fen_input
You are an exceptionally skilled Chess AI, designed to embody the combined strengths of a powerful playing engine, an insightful expert analyst, and a clear, instructive communicator. For every query, you MUST respond in the following JSON format: ```json { "thinking": "Your step-by-step reasoning process here.", ...
c736eb946ed3eefca32af72aed375361bce7632b8d903644f58635610cf69bcd
{ "data_origin": null, "difficulty_range": null, "input_format": null, "num_moves_applied": null, "puzzle_id": null, "rating": null, "themes": null, "verification_includes_top_n_moves": 5 }
{ "applied_moves_uci": null, "attacked_targets": null, "best_move_uci": "e7d5", "board_fen": null, "castling_fen": null, "en_passant_square": null, "eval_category": null, "eval_cp": null, "eval_mate": null, "final_fen": null, "from_square": null, "initial_fen": null, "is_game_over": null, "k...
Solve this chess puzzle. Given the position in FEN notation: 8/8/8/3p4/8/5P2/2k1K2P/8 w - - 4 53 - What is the best continuation? Respond with the sequence of moves in UCI format in the 'answer' field of the JSON output.
chess_puzzle_solving
puzzle_fen
You are an exceptionally skilled Chess AI, designed to embody the combined strengths of a powerful playing engine, an insightful expert analyst, and a clear, instructive communicator. For every query, you MUST respond in the following JSON format: ```json { "thinking": "Your step-by-step reasoning process here.", ...
265fc52615a93cf9939c857793b9e0ac0a25b2ae3b56e9af6b96c5693493c487
{ "data_origin": null, "difficulty_range": "500", "input_format": null, "num_moves_applied": null, "puzzle_id": "sOJHf", "rating": 576, "themes": "advancedPawn crushing endgame pawnEndgame promotion quietMove veryLong", "verification_includes_top_n_moves": null }
{ "applied_moves_uci": null, "attacked_targets": null, "best_move_uci": null, "board_fen": null, "castling_fen": null, "en_passant_square": null, "eval_category": null, "eval_cp": null, "eval_mate": null, "final_fen": null, "from_square": null, "initial_fen": null, "is_game_over": null, "kin...
Describe the position of the FEN string: 8/1P3k2/5p2/BN1P4/8/7p/5R1K/8 w - - 5 77. Respond in JSON format with 'thinking' and 'answer' keys, putting the summary details as a structured object in the 'answer' field.
position_summary
fen_input
You are an exceptionally skilled Chess AI, designed to embody the combined strengths of a powerful playing engine, an insightful expert analyst, and a clear, instructive communicator. For every query, you MUST respond in the following JSON format: ```json { "thinking": "Your step-by-step reasoning process here.", ...
db50b3fe1f1b7062029b81c5a35665ad6ff9e5ae8753e4b4fcdcddc4fd0f81e4
{ "data_origin": null, "difficulty_range": null, "input_format": null, "num_moves_applied": null, "puzzle_id": null, "rating": null, "themes": null, "verification_includes_top_n_moves": null }
{ "applied_moves_uci": null, "attacked_targets": null, "best_move_uci": null, "board_fen": "8/1P3k2/5p2/BN1P4/8/7p/5R1K/8 w - - 5 77", "castling_fen": "-", "en_passant_square": "-", "eval_category": null, "eval_cp": null, "eval_mate": null, "final_fen": null, "from_square": null, "initial_fen": ...
Evaluate the chess position in the FEN string: 4r3/8/8/p4Q2/P2k2BP/8/5K2/8 w - - 15 109. Respond in JSON format with 'thinking' and 'answer' keys, putting the evaluation category (e.g., 'white_slight_advantage', 'equal', 'mate_in_N') in the 'answer' field.
evaluate_position
fen_input
You are an exceptionally skilled Chess AI, designed to embody the combined strengths of a powerful playing engine, an insightful expert analyst, and a clear, instructive communicator. For every query, you MUST respond in the following JSON format: ```json { "thinking": "Your step-by-step reasoning process here.", ...
94aee57a3acd2a353531c834e433f98e24468558e12a2ce58e158721364e5007
{ "data_origin": null, "difficulty_range": null, "input_format": null, "num_moves_applied": null, "puzzle_id": null, "rating": null, "themes": null, "verification_includes_top_n_moves": null }
{ "applied_moves_uci": null, "attacked_targets": null, "best_move_uci": null, "board_fen": null, "castling_fen": null, "en_passant_square": null, "eval_category": "mate_in_N", "eval_cp": null, "eval_mate": 9, "final_fen": null, "from_square": null, "initial_fen": null, "is_game_over": null, ...
Which pieces are currently under attack in the following position: Current Position State: - Pieces: White: King on h1; Rooks on a1, g1; Bishops on d1, g5; Knight on d2; Pawns on a4, a5, d5, e4, f3, g3, h2. Black: King on h8; Queen on b2; Rooks on d8, h6; Bishops on d7, f8; Knight on h5; Pawns on b7, e5, f7, h7. - Tur...
pieces_under_attack
description_input
You are an exceptionally skilled Chess AI, designed to embody the combined strengths of a powerful playing engine, an insightful expert analyst, and a clear, instructive communicator. For every query, you MUST respond in the following JSON format: ```json { "thinking": "Your step-by-step reasoning process here.", ...
e2963457d91904926049160d841a5eb71f407f89bb5f2601c4b9cbfd9c5af4c6
{ "data_origin": null, "difficulty_range": null, "input_format": null, "num_moves_applied": null, "puzzle_id": null, "rating": null, "themes": null, "verification_includes_top_n_moves": null }
{ "applied_moves_uci": null, "attacked_targets": [ { "color": "white", "piece_type": "rook", "square": "a1" }, { "color": "white", "piece_type": "pawn", "square": "a4" }, { "color": "white", "piece_type": "knight", "square": "d2" }, {...
Which pieces are currently under attack in the FEN string: 7k/7n/3bp3/3p4/3P4/8/PP3q2/7K w - - 0 53? Respond in JSON format with 'thinking' and 'answer' keys, putting a list of the attacked pieces in the 'answer' field.
pieces_under_attack
fen_input
You are an exceptionally skilled Chess AI, designed to embody the combined strengths of a powerful playing engine, an insightful expert analyst, and a clear, instructive communicator. For every query, you MUST respond in the following JSON format: ```json { "thinking": "Your step-by-step reasoning process here.", ...
59080158cb101ad772958528265bce851275c1174fb847e763e47b52c49b131f
{ "data_origin": null, "difficulty_range": null, "input_format": null, "num_moves_applied": null, "puzzle_id": null, "rating": null, "themes": null, "verification_includes_top_n_moves": null }
{ "applied_moves_uci": null, "attacked_targets": [ { "color": "white", "piece_type": "pawn", "square": "b2" }, { "color": "white", "piece_type": "pawn", "square": "d4" } ], "best_move_uci": null, "board_fen": null, "castling_fen": null, "en_passant_squar...
Evaluate the chess position in the following position: Current Position State: - Pieces: White: King on f1; Queen on h8; Rooks on a1, h1; Bishops on a6, h4; Knights on f4, f5; Pawns on a4, c2, e4. Black: King on c7; Queen on b8; Rook on a5; Bishop on f8; Pawns on c6, d5, e5. - Turn: It is Black's turn to move. - Castl...
evaluate_position
description_input
You are an exceptionally skilled Chess AI, designed to embody the combined strengths of a powerful playing engine, an insightful expert analyst, and a clear, instructive communicator. For every query, you MUST respond in the following JSON format: ```json { "thinking": "Your step-by-step reasoning process here.", ...
b8ef999986646274691d1c953a1027fbbfad075535100ca96cce1c14a75a737f
{ "data_origin": null, "difficulty_range": null, "input_format": null, "num_moves_applied": null, "puzzle_id": null, "rating": null, "themes": null, "verification_includes_top_n_moves": null }
{ "applied_moves_uci": null, "attacked_targets": null, "best_move_uci": null, "board_fen": null, "castling_fen": null, "en_passant_square": null, "eval_category": "mate_in_N", "eval_cp": null, "eval_mate": 15, "final_fen": null, "from_square": null, "initial_fen": null, "is_game_over": null, ...
Summarize the key details (pieces, turn, castling, en passant) of the following position: Current Position State: - Pieces: White: King on h2; Rooks on c1, d1; Bishop on a6; Pawns on a4, e4, g2, g5. Black: King on e7; Rooks on b2, g8; Bishop on e6; Pawns on a5, c5, e5, f4, f7, h5. - Turn: It is Black's turn to move. -...
position_summary
description_input
You are an exceptionally skilled Chess AI, designed to embody the combined strengths of a powerful playing engine, an insightful expert analyst, and a clear, instructive communicator. For every query, you MUST respond in the following JSON format: ```json { "thinking": "Your step-by-step reasoning process here.", ...
82babc9717697725cb651aaf4721882d045d6377282b4ccb78b7fd3b50045e6f
{ "data_origin": null, "difficulty_range": null, "input_format": null, "num_moves_applied": null, "puzzle_id": null, "rating": null, "themes": null, "verification_includes_top_n_moves": null }
{ "applied_moves_uci": null, "attacked_targets": null, "best_move_uci": null, "board_fen": "6r1/4kp2/B3b3/p1p1p1Pp/P3Pp2/8/1r4PK/2RR4 b - - 0 34", "castling_fen": "-", "en_passant_square": "-", "eval_category": null, "eval_cp": null, "eval_mate": null, "final_fen": null, "from_square": null, "in...
Evaluate the chess position in the following position: Current Position State: - Pieces: White: King on g2; Queen on d5; Knight on g3; Pawns on a4, c4, e4, f2, f4, h4. Black: King on h8; Queen on f7; Rooks on f8, g8; Knight on b5; Pawns on a5, c5, e5, f5, h5, h7. - Turn: It is Black's turn to move. - Castling Rights: ...
evaluate_position
description_input
You are an exceptionally skilled Chess AI, designed to embody the combined strengths of a powerful playing engine, an insightful expert analyst, and a clear, instructive communicator. For every query, you MUST respond in the following JSON format: ```json { "thinking": "Your step-by-step reasoning process here.", ...
37554a5e558779e6ce336e1aba94b5a77d160deed22d7c49cbb2f16f58bca86b
{ "data_origin": null, "difficulty_range": null, "input_format": null, "num_moves_applied": null, "puzzle_id": null, "rating": null, "themes": null, "verification_includes_top_n_moves": null }
{ "applied_moves_uci": null, "attacked_targets": null, "best_move_uci": null, "board_fen": null, "castling_fen": null, "en_passant_square": null, "eval_category": "black_winning", "eval_cp": -934, "eval_mate": null, "final_fen": null, "from_square": null, "initial_fen": null, "is_game_over": n...
Summarize the key details (pieces, turn, castling, en passant) of the following position: Current Position State: - Pieces: White: King on b5. Black: King on e8; Rook on f4; Pawns on f5, g7, h4. - Turn: It is Black's turn to move. - Castling Rights: No castling rights remain. - En Passant: There is no en passant targe...
position_summary
description_input
You are an exceptionally skilled Chess AI, designed to embody the combined strengths of a powerful playing engine, an insightful expert analyst, and a clear, instructive communicator. For every query, you MUST respond in the following JSON format: ```json { "thinking": "Your step-by-step reasoning process here.", ...
4b3bb634720f39761394e90d47f319494c66d763dd62ffa9e43a22a952b17d01
{ "data_origin": null, "difficulty_range": null, "input_format": null, "num_moves_applied": null, "puzzle_id": null, "rating": null, "themes": null, "verification_includes_top_n_moves": null }
{ "applied_moves_uci": null, "attacked_targets": null, "best_move_uci": null, "board_fen": "4k3/6p1/8/1K3p2/5r1p/8/8/8 b - - 1 67", "castling_fen": "-", "en_passant_square": "-", "eval_category": null, "eval_cp": null, "eval_mate": null, "final_fen": null, "from_square": null, "initial_fen": nul...
What is the best move in the FEN string: r2q2kr/p4pbp/1p1P2p1/1Np5/P5n1/2NPBBPb/1PP2Q2/R5K1 w - - 1 21? Respond in JSON format with 'thinking' and 'answer' keys, putting the move in UCI format in the 'answer' field.
best_move
fen_input
You are an exceptionally skilled Chess AI, designed to embody the combined strengths of a powerful playing engine, an insightful expert analyst, and a clear, instructive communicator. For every query, you MUST respond in the following JSON format: ```json { "thinking": "Your step-by-step reasoning process here.", ...
71b98849dc6ce25aa16ada337729f7c36a5cc55dffa01bb4d20435de8ead18b0
{ "data_origin": null, "difficulty_range": null, "input_format": null, "num_moves_applied": null, "puzzle_id": null, "rating": null, "themes": null, "verification_includes_top_n_moves": 5 }
{ "applied_moves_uci": null, "attacked_targets": null, "best_move_uci": "f3g4", "board_fen": null, "castling_fen": null, "en_passant_square": null, "eval_category": null, "eval_cp": null, "eval_mate": null, "final_fen": null, "from_square": null, "initial_fen": null, "is_game_over": null, "k...
What is the best move in the FEN string: 4k3/2R2R1p/3P3p/1B4P1/p3p3/PP2K3/8/8 b - - 3 42? Respond in JSON format with 'thinking' and 'answer' keys, putting the move in UCI format in the 'answer' field.
best_move
fen_input
You are an exceptionally skilled Chess AI, designed to embody the combined strengths of a powerful playing engine, an insightful expert analyst, and a clear, instructive communicator. For every query, you MUST respond in the following JSON format: ```json { "thinking": "Your step-by-step reasoning process here.", ...
09b8121681e2f90965ecb743c2f9f3b15bc8a1ab04a46bee3600c4f080c8f21e
{ "data_origin": null, "difficulty_range": null, "input_format": null, "num_moves_applied": null, "puzzle_id": null, "rating": null, "themes": null, "verification_includes_top_n_moves": 5 }
{ "applied_moves_uci": null, "attacked_targets": null, "best_move_uci": "e8d8", "board_fen": null, "castling_fen": null, "en_passant_square": null, "eval_category": null, "eval_cp": null, "eval_mate": null, "final_fen": null, "from_square": null, "initial_fen": null, "is_game_over": null, "k...
List all legal moves for the piece on square g6 in the following position: Current Position State: - Pieces: White: King on e1; Queen on a4; Rooks on a1, h1; Bishops on c1, f1; Knights on b1, g1; Pawns on a2, b2, c4, d4, e2, f2, g3, h2. Black: King on e8; Queen on d8; Rooks on a8, h8; Bishops on c8, f8; Knights on b8,...
legal_move_generation
description_input
You are an exceptionally skilled Chess AI, designed to embody the combined strengths of a powerful playing engine, an insightful expert analyst, and a clear, instructive communicator. For every query, you MUST respond in the following JSON format: ```json { "thinking": "Your step-by-step reasoning process here.", ...
c62ad5dc933395e078becc868c8f30c69063a7f2775706b73110f77601922727
{ "data_origin": null, "difficulty_range": null, "input_format": null, "num_moves_applied": null, "puzzle_id": null, "rating": null, "themes": null, "verification_includes_top_n_moves": null }
{ "applied_moves_uci": null, "attacked_targets": null, "best_move_uci": null, "board_fen": null, "castling_fen": null, "en_passant_square": null, "eval_category": null, "eval_cp": null, "eval_mate": null, "final_fen": null, "from_square": "g6", "initial_fen": null, "is_game_over": false, "ki...
List all legal moves for the piece on square c6 in the following position: Current Position State: - Pieces: White: King on g1; Queen on d1; Rooks on a1, f1; Bishops on b2, e2; Knight on d2; Pawns on a3, b4, c4, d4, e3, f2, g3, h2. Black: King on e8; Queen on c7; Rooks on c8, h8; Bishop on g7; Knights on d7, f6; Pawns...
legal_move_generation
description_input
You are an exceptionally skilled Chess AI, designed to embody the combined strengths of a powerful playing engine, an insightful expert analyst, and a clear, instructive communicator. For every query, you MUST respond in the following JSON format: ```json { "thinking": "Your step-by-step reasoning process here.", ...
90ce8aced80d1a1b9960361c73ead3a9eb1661e14f3d0b28683268602229ed91
{ "data_origin": null, "difficulty_range": null, "input_format": null, "num_moves_applied": null, "puzzle_id": null, "rating": null, "themes": null, "verification_includes_top_n_moves": null }
{ "applied_moves_uci": null, "attacked_targets": null, "best_move_uci": null, "board_fen": null, "castling_fen": null, "en_passant_square": null, "eval_category": null, "eval_cp": null, "eval_mate": null, "final_fen": null, "from_square": "c6", "initial_fen": null, "is_game_over": false, "ki...
List all legal moves for the piece on square h1 in the FEN string: 1rkb4/2N4p/1Pb5/3p3P/p2p2N1/8/5P2/1R5K w - - 10 45. Respond in JSON format with 'thinking' and 'answer' keys, putting a list of the moves in UCI format in the 'answer' field.
legal_move_generation
fen_input
You are an exceptionally skilled Chess AI, designed to embody the combined strengths of a powerful playing engine, an insightful expert analyst, and a clear, instructive communicator. For every query, you MUST respond in the following JSON format: ```json { "thinking": "Your step-by-step reasoning process here.", ...
27213e7701ec179a0d0baca61a425df1abc294d9f29d053151e267589d2018f1
{ "data_origin": null, "difficulty_range": null, "input_format": null, "num_moves_applied": null, "puzzle_id": null, "rating": null, "themes": null, "verification_includes_top_n_moves": null }
{ "applied_moves_uci": null, "attacked_targets": null, "best_move_uci": null, "board_fen": null, "castling_fen": null, "en_passant_square": null, "eval_category": null, "eval_cp": null, "eval_mate": null, "final_fen": null, "from_square": "h1", "initial_fen": null, "is_game_over": false, "ki...
Given the chess position represented by the FEN string: 3R2r1/7k/4R1p1/1p3rP1/p1P2p1P/P1Q5/2N5/2KR4 w - - 1 60, apply the following sequence of moves in UCI notation: d8g8. What is the FEN string of the resulting position after all these moves have been made? Respond in JSON format with 'thinking' and 'answer' keys, pu...
predict_fen_after_moves
fen_input
You are an exceptionally skilled Chess AI, designed to embody the combined strengths of a powerful playing engine, an insightful expert analyst, and a clear, instructive communicator. For every query, you MUST respond in the following JSON format: ```json { "thinking": "Your step-by-step reasoning process here.", ...
9d0953e65ebaba482c2a6cf9f3446ff9b1d325900af03320c0a9c8fcd154129f
{ "data_origin": "game_history", "difficulty_range": null, "input_format": "fen_input", "num_moves_applied": 1, "puzzle_id": null, "rating": null, "themes": null, "verification_includes_top_n_moves": null }
{ "applied_moves_uci": [ "d8g8" ], "attacked_targets": null, "best_move_uci": null, "board_fen": null, "castling_fen": null, "en_passant_square": null, "eval_category": null, "eval_cp": null, "eval_mate": null, "final_fen": "6R1/7k/4R1p1/1p3rP1/p1P2p1P/P1Q5/2N5/2KR4 b - - 0 60", "from_square...
Which pieces are currently under attack in the following position: Current Position State: - Pieces: White: King on g1; Queen on c2; Rooks on a1, f1; Bishops on c1, e2; Knights on c3, d4; Pawns on a3, b4, e3, f4, g2, h3. Black: King on f8; Queen on e7; Rooks on d8, g8; Bishops on b8, e6; Knights on c6, f6; Pawns on a7...
pieces_under_attack
description_input
You are an exceptionally skilled Chess AI, designed to embody the combined strengths of a powerful playing engine, an insightful expert analyst, and a clear, instructive communicator. For every query, you MUST respond in the following JSON format: ```json { "thinking": "Your step-by-step reasoning process here.", ...
028a07a0427e5965c92ee27c41bcaeccb06511ddc1855a1e4460741a30c3b53f
{ "data_origin": null, "difficulty_range": null, "input_format": null, "num_moves_applied": null, "puzzle_id": null, "rating": null, "themes": null, "verification_includes_top_n_moves": null }
{ "applied_moves_uci": null, "attacked_targets": [ { "color": "white", "piece_type": "pawn", "square": "b4" }, { "color": "black", "piece_type": "knight", "square": "c6" }, { "color": "white", "piece_type": "knight", "square": "d4" }, ...
Summarize the key details (pieces, turn, castling, en passant) of the following position: Current Position State: - Pieces: White: King on g1; Queen on e2; Rooks on a1, f1; Knights on a4, e5; Pawns on d2, e3, f4, g2, h3. Black: King on g8; Queen on a8; Rook on f8; Bishops on c8, e7; Knight on h7; Pawns on a2, a5, b6, ...
position_summary
description_input
You are an exceptionally skilled Chess AI, designed to embody the combined strengths of a powerful playing engine, an insightful expert analyst, and a clear, instructive communicator. For every query, you MUST respond in the following JSON format: ```json { "thinking": "Your step-by-step reasoning process here.", ...
2366a06ee4d117b07c00577686ebce199dd2e95378aeb33af5c535dd9ff6ab9d
{ "data_origin": null, "difficulty_range": null, "input_format": null, "num_moves_applied": null, "puzzle_id": null, "rating": null, "themes": null, "verification_includes_top_n_moves": null }
{ "applied_moves_uci": null, "attacked_targets": null, "best_move_uci": null, "board_fen": "q1b2rk1/4bppn/1p2p2p/p1p1N3/N4P2/4P2P/p2PQ1P1/R4RK1 b - - 1 20", "castling_fen": "-", "en_passant_square": "-", "eval_category": null, "eval_cp": null, "eval_mate": null, "final_fen": null, "from_square": n...
What is the best move in the following position: Current Position State: - Pieces: White: King on e1; Pawns on c3, f3, f6. Black: King on e8; Queen on h2; Rooks on d2, h5; Bishop on e7; Knight on g6; Pawns on b5, b7, c4, f7, g4, g7. - Turn: It is Black's turn to move. - Castling Rights: No castling rights remain. - En...
best_move
description_input
You are an exceptionally skilled Chess AI, designed to embody the combined strengths of a powerful playing engine, an insightful expert analyst, and a clear, instructive communicator. For every query, you MUST respond in the following JSON format: ```json { "thinking": "Your step-by-step reasoning process here.", ...
f818d727e9e0981c8e547921a5227a34b435f3af8aab176f583bfd0df9a53bc6
{ "data_origin": null, "difficulty_range": null, "input_format": null, "num_moves_applied": null, "puzzle_id": null, "rating": null, "themes": null, "verification_includes_top_n_moves": 5 }
{ "applied_moves_uci": null, "attacked_targets": null, "best_move_uci": "h2e2", "board_fen": null, "castling_fen": null, "en_passant_square": null, "eval_category": null, "eval_cp": null, "eval_mate": null, "final_fen": null, "from_square": null, "initial_fen": null, "is_game_over": null, "k...
Given the chess position represented by the FEN string: 8/4Q3/8/3Nk1np/1P1N3P/p3K3/1P6/8 b - - 3 57, apply the following sequence of moves in UCI notation: g5e6, e7e6. What is the FEN string of the resulting position after all these moves have been made? Respond in JSON format with 'thinking' and 'answer' keys, putting...
predict_fen_after_moves
fen_input
You are an exceptionally skilled Chess AI, designed to embody the combined strengths of a powerful playing engine, an insightful expert analyst, and a clear, instructive communicator. For every query, you MUST respond in the following JSON format: ```json { "thinking": "Your step-by-step reasoning process here.", ...
fe44fa2019ff740b69e491288c7911fc683439d4ff747ee1e165436366871efa
{ "data_origin": "game_history", "difficulty_range": null, "input_format": "fen_input", "num_moves_applied": 2, "puzzle_id": null, "rating": null, "themes": null, "verification_includes_top_n_moves": null }
{ "applied_moves_uci": [ "g5e6", "e7e6" ], "attacked_targets": null, "best_move_uci": null, "board_fen": null, "castling_fen": null, "en_passant_square": null, "eval_category": null, "eval_cp": null, "eval_mate": null, "final_fen": "8/8/4Q3/3Nk2p/1P1N3P/p3K3/1P6/8 b - - 0 58", "from_squa...
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