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{ "fen": "r6k/pp2r2p/4Rp1Q/3p4/8/1N1P2R1/PqP2bPP/7K b - - 0 24", "legal_moves": [ "a8g8", "a8f8", "a8e8", "a8d8", "a8c8", "a8b8", "e7e8", "e7g7", "e7f7", "e7d7", "e7c7", "e7e6", "f2b6", "f2c5", "f2d4", "f2g3", "f2e3", "f2g1", "f2e1", "b2e5", "b2d4", "b2c3", "b2b3", "b2a3", "b2c2", "b2a2", "b2c1", "b2b1", "b2a1", "b7b6", "a7a6", "f6f5", "d5d4", "b7b5", "a7a5" ], "side_to_move": "Black" }
{ "move": "f2g3", "solution": [ "f2g3", "e6e7", "b2b1", "b3c1", "b1c1", "h6c1" ] }
{ "puzzle_id": "00008", "rating": 1877, "themes": [ "crushing", "hangingPiece", "long", "middlegame" ], "game_url": "https://lichess.org/787zsVup/black#48", "opening_tags": [], "move_number": 1, "total_moves": 6 }
{ "fen": "r6k/pp2R2p/5p1Q/3p4/8/1N1P2b1/PqP3PP/7K b - - 0 25", "legal_moves": [ "h8g8", "a8g8", "a8f8", "a8e8", "a8d8", "a8c8", "a8b8", "g3b8", "g3c7", "g3d6", "g3e5", "g3h4", "g3f4", "g3h2", "g3f2", "g3e1", "b2e5", "b2d4", "b2c3", "b2b3", "b2a3", "b2c2", "b2a2", "b2c1", "b2b1", "b2a1", "b7b6", "a7a6", "f6f5", "d5d4", "b7b5", "a7a5" ], "side_to_move": "Black" }
{ "move": "b2b1", "solution": [ "b2b1", "b3c1", "b1c1", "h6c1" ] }
{ "puzzle_id": "00008", "rating": 1877, "themes": [ "crushing", "hangingPiece", "long", "middlegame" ], "game_url": "https://lichess.org/787zsVup/black#48", "opening_tags": [], "move_number": 3, "total_moves": 6 }
{ "fen": "r6k/pp2R2p/5p1Q/3p4/8/3P2b1/P1P3PP/1qN4K b - - 2 26", "legal_moves": [ "h8g8", "a8g8", "a8f8", "a8e8", "a8d8", "a8c8", "a8b8", "g3b8", "g3c7", "g3d6", "g3e5", "g3h4", "g3f4", "g3h2", "g3f2", "g3e1", "b1b6", "b1b5", "b1b4", "b1b3", "b1c2", "b1b2", "b1a2", "b1c1", "b1a1", "b7b6", "a7a6", "f6f5", "d5d4", "b7b5", "a7a5" ], "side_to_move": "Black" }
{ "move": "b1c1", "solution": [ "b1c1", "h6c1" ] }
{ "puzzle_id": "00008", "rating": 1877, "themes": [ "crushing", "hangingPiece", "long", "middlegame" ], "game_url": "https://lichess.org/787zsVup/black#48", "opening_tags": [], "move_number": 5, "total_moves": 6 }
{ "fen": "5rk1/1p3ppp/pq3b2/8/8/1P1Q1N2/P4PPP/3R2K1 w - - 2 27", "legal_moves": [ "f3g5", "f3e5", "f3h4", "f3d4", "f3d2", "f3e1", "d3d8", "d3h7", "d3d7", "d3g6", "d3d6", "d3a6", "d3f5", "d3d5", "d3b5", "d3e4", "d3d4", "d3c4", "d3e3", "d3c3", "d3e2", "d3d2", "d3c2", "d3f1", "d3b1", "g1h1", "g1f1", "d1d2", "d1f1", "d1e1", "d1c1", "d1b1", "d1a1", "b3b4", "h2h3", "g2g3", "a2a3", "h2h4", "g2g4", "a2a4" ], "side_to_move": "White" }
{ "move": "d3d6", "solution": [ "d3d6", "f8d8", "d6d8", "f6d8" ] }
{ "puzzle_id": "0000D", "rating": 1501, "themes": [ "advantage", "endgame", "short" ], "game_url": "https://lichess.org/F8M8OS71#53", "opening_tags": [], "move_number": 1, "total_moves": 4 }
{ "fen": "3r2k1/1p3ppp/pq1Q1b2/8/8/1P3N2/P4PPP/3R2K1 w - - 4 28", "legal_moves": [ "d6f8", "d6d8", "d6b8", "d6e7", "d6d7", "d6c7", "d6f6", "d6e6", "d6c6", "d6b6", "d6e5", "d6d5", "d6c5", "d6f4", "d6d4", "d6b4", "d6g3", "d6d3", "d6a3", "d6d2", "f3g5", "f3e5", "f3h4", "f3d4", "f3d2", "f3e1", "g1h1", "g1f1", "d1d5", "d1d4", "d1d3", "d1d2", "d1f1", "d1e1", "d1c1", "d1b1", "d1a1", "b3b4", "h2h3", "g2g3", "a2a3", "h2h4", "g2g4", "a2a4" ], "side_to_move": "White" }
{ "move": "d6d8", "solution": [ "d6d8", "f6d8" ] }
{ "puzzle_id": "0000D", "rating": 1501, "themes": [ "advantage", "endgame", "short" ], "game_url": "https://lichess.org/F8M8OS71#53", "opening_tags": [], "move_number": 3, "total_moves": 4 }
{ "fen": "8/4R3/1p2P3/p4r2/P6p/1P3Pk1/4K3/8 w - - 1 64", "legal_moves": [ "e7e8", "e7h7", "e7g7", "e7f7", "e7d7", "e7c7", "e7b7", "e7a7", "e2e3", "e2d3", "e2d2", "e2f1", "e2e1", "e2d1", "f3f4", "b3b4" ], "side_to_move": "White" }
{ "move": "e7f7", "solution": [ "e7f7", "f5e5", "e2f1", "e5e6" ] }
{ "puzzle_id": "0008Q", "rating": 1355, "themes": [ "advantage", "endgame", "rookEndgame", "short" ], "game_url": "https://lichess.org/MQSyb3KW#127", "opening_tags": [], "move_number": 1, "total_moves": 4 }
{ "fen": "8/5R2/1p2P3/p3r3/P6p/1P3Pk1/4K3/8 w - - 3 65", "legal_moves": [ "e2d3", "e2d2", "e2f1", "e2d1" ], "side_to_move": "White" }
{ "move": "e2f1", "solution": [ "e2f1", "e5e6" ] }
{ "puzzle_id": "0008Q", "rating": 1355, "themes": [ "advantage", "endgame", "rookEndgame", "short" ], "game_url": "https://lichess.org/MQSyb3KW#127", "opening_tags": [], "move_number": 3, "total_moves": 4 }
{ "fen": "r2qr1k1/b1p2ppp/pp4n1/P1P1p3/4P1n1/B2P2Pb/3NBP1P/RN1QR1K1 b - - 1 16", "legal_moves": [ "g8h8", "g8f8", "e8f8", "e8e7", "e8e6", "d8c8", "d8b8", "d8e7", "d8d7", "d8f6", "d8d6", "d8g5", "d8d5", "d8h4", "d8d4", "d8d3", "a8c8", "a8b8", "a7b8", "g6h8", "g6f8", "g6e7", "g6h4", "g6f4", "g4h6", "g4f6", "g4e3", "g4h2", "g4f2", "h3g2", "h3f1", "b6c5", "b6a5", "h7h6", "f7f6", "c7c6", "b6b5", "h7h5", "f7f5" ], "side_to_move": "Black" }
{ "move": "b6c5", "solution": [ "b6c5", "e2g4", "h3g4", "d1g4" ] }
{ "puzzle_id": "0009B", "rating": 1103, "themes": [ "advantage", "middlegame", "short" ], "game_url": "https://lichess.org/4MWQCxQ6/black#32", "opening_tags": [ "Kings_Pawn_Game", "Kings_Pawn_Game_Leonardis_Variation" ], "move_number": 1, "total_moves": 4 }
{ "fen": "r2qr1k1/b1p2ppp/p5n1/P1p1p3/4P1B1/B2P2Pb/3N1P1P/RN1QR1K1 b - - 0 17", "legal_moves": [ "g8h8", "g8f8", "e8f8", "e8e7", "e8e6", "d8c8", "d8b8", "d8e7", "d8d7", "d8f6", "d8d6", "d8g5", "d8d5", "d8h4", "d8d4", "d8d3", "a8c8", "a8b8", "a7b8", "a7b6", "g6h8", "g6f8", "g6e7", "g6h4", "g6f4", "h3g4", "h3g2", "h3f1", "h7h6", "f7f6", "c7c6", "c5c4", "h7h5", "f7f5" ], "side_to_move": "Black" }
{ "move": "h3g4", "solution": [ "h3g4", "d1g4" ] }
{ "puzzle_id": "0009B", "rating": 1103, "themes": [ "advantage", "middlegame", "short" ], "game_url": "https://lichess.org/4MWQCxQ6/black#32", "opening_tags": [ "Kings_Pawn_Game", "Kings_Pawn_Game_Leonardis_Variation" ], "move_number": 3, "total_moves": 4 }
{ "fen": "6k1/5p1p/4p3/4q3/3nN3/2Q3P1/PP3P1P/6K1 w - - 2 37", "legal_moves": [ "e4f6", "e4d6", "e4g5", "e4c5", "e4d2", "c3c8", "c3c7", "c3c6", "c3c5", "c3a5", "c3d4", "c3c4", "c3b4", "c3f3", "c3e3", "c3d3", "c3b3", "c3a3", "c3d2", "c3c2", "c3e1", "c3c1", "g1g2", "g1h1", "g1f1", "g3g4", "h2h3", "f2f3", "b2b3", "a2a3", "h2h4", "f2f4", "b2b4", "a2a4" ], "side_to_move": "White" }
{ "move": "e4d2", "solution": [ "e4d2", "d4e2", "g1f1", "e2c3" ] }
{ "puzzle_id": "000Pw", "rating": 1422, "themes": [ "crushing", "endgame", "fork", "short" ], "game_url": "https://lichess.org/au2lCK5o#73", "opening_tags": [], "move_number": 1, "total_moves": 4 }
{ "fen": "6k1/5p1p/4p3/4q3/8/2Q3P1/PP1NnP1P/6K1 w - - 4 38", "legal_moves": [ "g1g2", "g1h1", "g1f1" ], "side_to_move": "White" }
{ "move": "g1f1", "solution": [ "g1f1", "e2c3" ] }
{ "puzzle_id": "000Pw", "rating": 1422, "themes": [ "crushing", "endgame", "fork", "short" ], "game_url": "https://lichess.org/au2lCK5o#73", "opening_tags": [], "move_number": 3, "total_moves": 4 }
{ "fen": "2Q2bk1/5p1p/p5p1/2p3P1/2r1B3/7P/qPQ2P2/2K4R b - - 0 32", "legal_moves": [ "g8h8", "g8g7", "c4e4", "c4d4", "c4b4", "c4a4", "c4c3", "c4c2", "a2a5", "a2a4", "a2b3", "a2a3", "a2b2", "a2b1", "a2a1", "h7h6", "f7f6", "a6a5", "h7h5", "f7f5" ], "side_to_move": "Black" }
{ "move": "c4c2", "solution": [ "c4c2", "e4c2", "a2a1", "c2b1" ] }
{ "puzzle_id": "000Sa", "rating": 1537, "themes": [ "advantage", "endgame", "short" ], "game_url": "https://lichess.org/lTTa9lwd/black#64", "opening_tags": [], "move_number": 1, "total_moves": 4 }
{ "fen": "2Q2bk1/5p1p/p5p1/2p3P1/8/7P/qPB2P2/2K4R b - - 0 33", "legal_moves": [ "g8h8", "g8g7", "a2e6", "a2d5", "a2a5", "a2c4", "a2a4", "a2b3", "a2a3", "a2b2", "a2b1", "a2a1", "h7h6", "f7f6", "a6a5", "c5c4", "h7h5", "f7f5" ], "side_to_move": "Black" }
{ "move": "a2a1", "solution": [ "a2a1", "c2b1" ] }
{ "puzzle_id": "000Sa", "rating": 1537, "themes": [ "advantage", "endgame", "short" ], "game_url": "https://lichess.org/lTTa9lwd/black#64", "opening_tags": [], "move_number": 3, "total_moves": 4 }
{ "fen": "r4r2/1p3pkp/p5p1/3R1N1Q/3P4/8/P1q2P2/3R2K1 b - - 3 25", "legal_moves": [ "g7h8", "g7g8", "g7f6", "c2f5", "g6f5" ], "side_to_move": "Black" }
{ "move": "g6f5", "solution": [ "g6f5", "d5c5", "c2e4", "h5g5", "g7h8", "g5f6" ] }
{ "puzzle_id": "000VW", "rating": 2857, "themes": [ "crushing", "endgame", "long" ], "game_url": "https://lichess.org/e9AY2m5j/black#50", "opening_tags": [], "move_number": 1, "total_moves": 6 }
{ "fen": "r4r2/1p3pkp/p7/2R2p1Q/3P4/8/P1q2P2/3R2K1 b - - 1 26", "legal_moves": [ "f8h8", "f8g8", "f8e8", "f8d8", "f8c8", "f8b8", "a8e8", "a8d8", "a8c8", "a8b8", "a8a7", "g7h8", "g7g8", "g7f6", "c2c5", "c2e4", "c2c4", "c2a4", "c2d3", "c2c3", "c2b3", "c2f2", "c2e2", "c2d2", "c2b2", "c2a2", "c2d1", "c2c1", "c2b1", "h7h6", "f7f6", "b7b6", "a6a5", "f5f4", "b7b5" ], "side_to_move": "Black" }
{ "move": "c2e4", "solution": [ "c2e4", "h5g5", "g7h8", "g5f6" ] }
{ "puzzle_id": "000VW", "rating": 2857, "themes": [ "crushing", "endgame", "long" ], "game_url": "https://lichess.org/e9AY2m5j/black#50", "opening_tags": [], "move_number": 3, "total_moves": 6 }
{ "fen": "r4r2/1p3pkp/p7/2R2pQ1/3Pq3/8/P4P2/3R2K1 b - - 3 27", "legal_moves": [ "g7h8" ], "side_to_move": "Black" }
{ "move": "g7h8", "solution": [ "g7h8", "g5f6" ] }
{ "puzzle_id": "000VW", "rating": 2857, "themes": [ "crushing", "endgame", "long" ], "game_url": "https://lichess.org/e9AY2m5j/black#50", "opening_tags": [], "move_number": 5, "total_moves": 6 }
{ "fen": "8/8/4k1p1/2KpP2p/5PP1/8/8/8 w - - 0 53", "legal_moves": [ "c5c6", "c5b6", "c5b5", "c5d4", "c5b4", "g4h5", "g4g5", "f4f5" ], "side_to_move": "White" }
{ "move": "g4h5", "solution": [ "g4h5", "g6h5", "f4f5", "e6e5", "f5f6", "e5f6" ] }
{ "puzzle_id": "000Vc", "rating": 1611, "themes": [ "crushing", "endgame", "long", "pawnEndgame" ], "game_url": "https://lichess.org/l6AejDMO#105", "opening_tags": [], "move_number": 1, "total_moves": 6 }
{ "fen": "8/8/4k3/2KpP2p/5P2/8/8/8 w - - 0 54", "legal_moves": [ "c5c6", "c5b6", "c5b5", "c5d4", "c5b4", "f4f5" ], "side_to_move": "White" }
{ "move": "f4f5", "solution": [ "f4f5", "e6e5", "f5f6", "e5f6" ] }
{ "puzzle_id": "000Vc", "rating": 1611, "themes": [ "crushing", "endgame", "long", "pawnEndgame" ], "game_url": "https://lichess.org/l6AejDMO#105", "opening_tags": [], "move_number": 3, "total_moves": 6 }
{ "fen": "8/8/8/2KpkP1p/8/8/8/8 w - - 0 55", "legal_moves": [ "c5c6", "c5b6", "c5b5", "c5b4", "f5f6" ], "side_to_move": "White" }
{ "move": "f5f6", "solution": [ "f5f6", "e5f6" ] }
{ "puzzle_id": "000Vc", "rating": 1611, "themes": [ "crushing", "endgame", "long", "pawnEndgame" ], "game_url": "https://lichess.org/l6AejDMO#105", "opening_tags": [], "move_number": 5, "total_moves": 6 }
{ "fen": "4r3/1k6/pp3r2/1b2P2p/3R1p2/P1R2P2/1P4PP/6K1 w - - 0 35", "legal_moves": [ "d4d8", "d4d7", "d4d6", "d4d5", "d4f4", "d4e4", "d4c4", "d4b4", "d4a4", "d4d3", "d4d2", "d4d1", "c3c8", "c3c7", "c3c6", "c3c5", "c3c4", "c3e3", "c3d3", "c3b3", "c3c2", "c3c1", "g1f2", "g1h1", "e5f6", "e5e6", "a3a4", "h2h3", "g2g3", "b2b3", "h2h4", "g2g4", "b2b4" ], "side_to_move": "White" }
{ "move": "e5f6", "solution": [ "e5f6", "e8e1", "g1f2", "e1f1" ] }
{ "puzzle_id": "000Zo", "rating": 1353, "themes": [ "endgame", "mate", "mateIn2", "short" ], "game_url": "https://lichess.org/n8Ff742v#69", "opening_tags": [], "move_number": 1, "total_moves": 4 }
{ "fen": "8/1k6/pp3P2/1b5p/3R1p2/P1R2P2/1P4PP/4r1K1 w - - 1 36", "legal_moves": [ "g1f2" ], "side_to_move": "White" }
{ "move": "g1f2", "solution": [ "g1f2", "e1f1" ] }
{ "puzzle_id": "000Zo", "rating": 1353, "themes": [ "endgame", "mate", "mateIn2", "short" ], "game_url": "https://lichess.org/n8Ff742v#69", "opening_tags": [], "move_number": 3, "total_moves": 4 }
{ "fen": "r4rk1/pp3ppp/2n1b3/q1pp2B1/8/P1Q2NP1/1PP1PP1P/2KR3R w - - 0 15", "legal_moves": [ "g5d8", "g5e7", "g5h6", "g5f6", "g5h4", "g5f4", "g5e3", "g5d2", "f3e5", "f3h4", "f3d4", "f3d2", "f3g1", "f3e1", "c3g7", "c3f6", "c3e5", "c3c5", "c3a5", "c3d4", "c3c4", "c3b4", "c3e3", "c3d3", "c3b3", "c3d2", "c3e1", "h1g1", "h1f1", "h1e1", "d1d5", "d1d4", "d1d3", "d1d2", "d1g1", "d1f1", "d1e1", "c1d2", "c1b1", "g3g4", "a3a4", "h2h3", "e2e3", "b2b3", "h2h4", "e2e4", "b2b4" ], "side_to_move": "White" }
{ "move": "g5e7", "solution": [ "g5e7", "a5c3", "b2c3", "c6e7" ] }
{ "puzzle_id": "000aY", "rating": 1430, "themes": [ "advantage", "master", "middlegame", "short" ], "game_url": "https://lichess.org/iihZGl6t#29", "opening_tags": [ "Benoni_Defense", "Benoni_Defense_Benoni-Indian_Defense" ], "move_number": 1, "total_moves": 4 }
{ "fen": "r4rk1/pp2Bppp/2n1b3/2pp4/8/P1q2NP1/1PP1PP1P/2KR3R w - - 0 16", "legal_moves": [ "e7f8", "e7d8", "e7f6", "e7d6", "e7g5", "e7c5", "e7h4", "f3g5", "f3e5", "f3h4", "f3d4", "f3d2", "f3g1", "f3e1", "h1g1", "h1f1", "h1e1", "d1d5", "d1d4", "d1d3", "d1d2", "d1g1", "d1f1", "d1e1", "c1b1", "b2c3", "g3g4", "a3a4", "h2h3", "e2e3", "b2b3", "h2h4", "e2e4", "b2b4" ], "side_to_move": "White" }
{ "move": "b2c3", "solution": [ "b2c3", "c6e7" ] }
{ "puzzle_id": "000aY", "rating": 1430, "themes": [ "advantage", "master", "middlegame", "short" ], "game_url": "https://lichess.org/iihZGl6t#29", "opening_tags": [ "Benoni_Defense", "Benoni_Defense_Benoni-Indian_Defense" ], "move_number": 3, "total_moves": 4 }
{ "fen": "5rk1/p5p1/3bpr1p/1Pp4q/3pR3/1P1Q1N2/P4PPP/4R1K1 w - - 4 22", "legal_moves": [ "e4e6", "e4e5", "e4h4", "e4g4", "e4f4", "e4d4", "e4e3", "e4e2", "f3g5", "f3e5", "f3h4", "f3d4", "f3d2", "d3d4", "d3c4", "d3e3", "d3c3", "d3e2", "d3d2", "d3c2", "d3f1", "d3d1", "d3b1", "g1h1", "g1f1", "e1e3", "e1e2", "e1f1", "e1d1", "e1c1", "e1b1", "e1a1", "b5b6", "b3b4", "h2h3", "g2g3", "a2a3", "h2h4", "g2g4", "a2a4" ], "side_to_move": "White" }
{ "move": "e4e6", "solution": [ "e4e6", "f6f3", "g2f3", "h5h2", "g1f1", "h2h3", "f1e2", "h3e6" ] }
{ "puzzle_id": "000h0", "rating": 2035, "themes": [ "advantage", "interference", "kingsideAttack", "middlegame", "veryLong" ], "game_url": "https://lichess.org/OWe6M5dF#43", "opening_tags": [], "move_number": 1, "total_moves": 8 }
{ "fen": "5rk1/p5p1/3bR2p/1Pp4q/3p4/1P1Q1r2/P4PPP/4R1K1 w - - 0 23", "legal_moves": [ "e6e8", "e6e7", "e6h6", "e6g6", "e6f6", "e6d6", "e6e5", "e6e4", "e6e3", "e6e2", "d3h7", "d3g6", "d3f5", "d3e4", "d3d4", "d3c4", "d3f3", "d3e3", "d3c3", "d3e2", "d3d2", "d3c2", "d3f1", "d3d1", "d3b1", "g1h1", "g1f1", "e1e5", "e1e4", "e1e3", "e1e2", "e1f1", "e1d1", "e1c1", "e1b1", "e1a1", "g2f3", "b5b6", "b3b4", "h2h3", "g2g3", "a2a3", "h2h4", "g2g4", "a2a4" ], "side_to_move": "White" }
{ "move": "g2f3", "solution": [ "g2f3", "h5h2", "g1f1", "h2h3", "f1e2", "h3e6" ] }
{ "puzzle_id": "000h0", "rating": 2035, "themes": [ "advantage", "interference", "kingsideAttack", "middlegame", "veryLong" ], "game_url": "https://lichess.org/OWe6M5dF#43", "opening_tags": [], "move_number": 3, "total_moves": 8 }
{ "fen": "5rk1/p5p1/3bR2p/1Pp5/3p4/1P1Q1P2/P4P1q/4R1K1 w - - 0 24", "legal_moves": [ "g1f1" ], "side_to_move": "White" }
{ "move": "g1f1", "solution": [ "g1f1", "h2h3", "f1e2", "h3e6" ] }
{ "puzzle_id": "000h0", "rating": 2035, "themes": [ "advantage", "interference", "kingsideAttack", "middlegame", "veryLong" ], "game_url": "https://lichess.org/OWe6M5dF#43", "opening_tags": [], "move_number": 5, "total_moves": 8 }
{ "fen": "5rk1/p5p1/3bR2p/1Pp5/3p4/1P1Q1P1q/P4P2/4RK2 w - - 2 25", "legal_moves": [ "f1e2", "f1g1" ], "side_to_move": "White" }
{ "move": "f1e2", "solution": [ "f1e2", "h3e6" ] }
{ "puzzle_id": "000h0", "rating": 2035, "themes": [ "advantage", "interference", "kingsideAttack", "middlegame", "veryLong" ], "game_url": "https://lichess.org/OWe6M5dF#43", "opening_tags": [], "move_number": 7, "total_moves": 8 }
{ "fen": "r1bqk2r/pp1nbNp1/2p1p2p/8/2BP4/1PN3P1/P3QP1P/3R1RK1 b kq - 0 19", "legal_moves": [ "h8g8", "h8f8", "h8h7", "e8f8", "e8f7", "d8c7", "d8b6", "d8a5", "a8b8", "e7f8", "e7f6", "e7d6", "e7g5", "e7c5", "e7h4", "e7b4", "e7a3", "d7f8", "d7b8", "d7f6", "d7b6", "d7e5", "d7c5", "e8g8", "g7g6", "b7b6", "a7a6", "h6h5", "e6e5", "c6c5", "g7g5", "b7b5", "a7a5" ], "side_to_move": "Black" }
{ "move": "e8f7", "solution": [ "e8f7", "e2e6", "f7f8", "e6f7" ] }
{ "puzzle_id": "000hf", "rating": 1620, "themes": [ "mate", "mateIn2", "middlegame", "short" ], "game_url": "https://lichess.org/71ygsFeE/black#38", "opening_tags": [ "Horwitz_Defense", "Horwitz_Defense_Other_variations" ], "move_number": 1, "total_moves": 4 }
{ "fen": "r1bq3r/pp1nbkp1/2p1Q2p/8/2BP4/1PN3P1/P4P1P/3R1RK1 b - - 0 20", "legal_moves": [ "f7f8", "f7e8" ], "side_to_move": "Black" }
{ "move": "f7f8", "solution": [ "f7f8", "e6f7" ] }
{ "puzzle_id": "000hf", "rating": 1620, "themes": [ "mate", "mateIn2", "middlegame", "short" ], "game_url": "https://lichess.org/71ygsFeE/black#38", "opening_tags": [ "Horwitz_Defense", "Horwitz_Defense_Other_variations" ], "move_number": 3, "total_moves": 4 }
{ "fen": "5k2/1p4pp/p5n1/5Q2/3BpP2/1P2PP1K/P1q4P/7r b - - 1 33", "legal_moves": [ "f8g8", "f8e8", "f8e7" ], "side_to_move": "Black" }
{ "move": "f8g8", "solution": [ "f8g8", "f5d5", "g8f8", "d4c5", "c2c5", "d5c5" ] }
{ "puzzle_id": "000jr", "rating": 2053, "themes": [ "crushing", "endgame", "long" ], "game_url": "https://lichess.org/JgxFj109/black#66", "opening_tags": [], "move_number": 1, "total_moves": 6 }
{ "fen": "6k1/1p4pp/p5n1/3Q4/3BpP2/1P2PP1K/P1q4P/7r b - - 3 34", "legal_moves": [ "g8h8", "g8f8" ], "side_to_move": "Black" }
{ "move": "g8f8", "solution": [ "g8f8", "d4c5", "c2c5", "d5c5" ] }
{ "puzzle_id": "000jr", "rating": 2053, "themes": [ "crushing", "endgame", "long" ], "game_url": "https://lichess.org/JgxFj109/black#66", "opening_tags": [], "move_number": 3, "total_moves": 6 }
{ "fen": "5k2/1p4pp/p5n1/2BQ4/4pP2/1P2PP1K/P1q4P/7r b - - 5 35", "legal_moves": [ "f8e8", "g6e7", "c2c5" ], "side_to_move": "Black" }
{ "move": "c2c5", "solution": [ "c2c5", "d5c5" ] }
{ "puzzle_id": "000jr", "rating": 2053, "themes": [ "crushing", "endgame", "long" ], "game_url": "https://lichess.org/JgxFj109/black#66", "opening_tags": [], "move_number": 5, "total_moves": 6 }
{ "fen": "3r3r/pQNk1ppp/1qnb1n2/1B6/8/8/PPP3PP/3R1R1K w - - 5 19", "legal_moves": [ "c7e8", "c7a8", "c7e6", "c7a6", "c7d5", "b7c8", "b7b8", "b7a8", "b7a7", "b7c6", "b7b6", "b7a6", "b5c6", "b5a6", "b5c4", "b5a4", "b5d3", "b5e2", "f1f6", "f1f5", "f1f4", "f1f3", "f1f2", "f1g1", "f1e1", "d1d6", "d1d5", "d1d4", "d1d3", "d1d2", "d1e1", "d1c1", "d1b1", "d1a1", "h2h3", "g2g3", "c2c3", "b2b3", "a2a3", "h2h4", "g2g4", "c2c4", "b2b4", "a2a4" ], "side_to_move": "White" }
{ "move": "d1d6", "solution": [ "d1d6", "d7d6", "b7b6", "a7b6" ] }
{ "puzzle_id": "000lC", "rating": 1391, "themes": [ "advantage", "hangingPiece", "middlegame", "short" ], "game_url": "https://lichess.org/vaqz2bx6#37", "opening_tags": [], "move_number": 1, "total_moves": 4 }
{ "fen": "3r3r/pQN2ppp/1qnk1n2/1B6/8/8/PPP3PP/5R1K w - - 0 20", "legal_moves": [ "c7e8", "c7a8", "c7e6", "c7a6", "c7d5", "b7c8", "b7b8", "b7a8", "b7a7", "b7c6", "b7b6", "b7a6", "b5c6", "b5a6", "b5c4", "b5a4", "b5d3", "b5e2", "f1f6", "f1f5", "f1f4", "f1f3", "f1f2", "f1g1", "f1e1", "f1d1", "f1c1", "f1b1", "f1a1", "h2h3", "g2g3", "c2c3", "b2b3", "a2a3", "h2h4", "g2g4", "c2c4", "b2b4", "a2a4" ], "side_to_move": "White" }
{ "move": "b7b6", "solution": [ "b7b6", "a7b6" ] }
{ "puzzle_id": "000lC", "rating": 1391, "themes": [ "advantage", "hangingPiece", "middlegame", "short" ], "game_url": "https://lichess.org/vaqz2bx6#37", "opening_tags": [], "move_number": 3, "total_moves": 4 }
{ "fen": "5r1k/5rp1/p7/1b2B2p/1P1P1Pq1/2R1Q3/P3p1P1/2R3K1 w - - 0 41", "legal_moves": [ "e5b8", "e5g7", "e5c7", "e5f6", "e5d6", "e3e4", "e3h3", "e3g3", "e3f3", "e3d3", "e3f2", "e3e2", "e3d2", "c3c8", "c3c7", "c3c6", "c3c5", "c3c4", "c3d3", "c3b3", "c3a3", "c3c2", "g1h2", "g1f2", "g1h1", "c1c2", "c1f1", "c1e1", "c1d1", "c1b1", "c1a1", "f4f5", "d4d5", "g2g3", "a2a3", "a2a4" ], "side_to_move": "White" }
{ "move": "e3g3", "solution": [ "e3g3", "f7f4", "e5f4", "f8f4" ] }
{ "puzzle_id": "000mr", "rating": 1957, "themes": [ "crushing", "middlegame", "short" ], "game_url": "https://lichess.org/8sVpuwso#81", "opening_tags": [], "move_number": 1, "total_moves": 4 }
{ "fen": "5r1k/6p1/p7/1b2B2p/1P1P1rq1/2R3Q1/P3p1P1/2R3K1 w - - 0 42", "legal_moves": [ "e5b8", "e5g7", "e5c7", "e5f6", "e5d6", "e5f4", "g3h4", "g3g4", "g3f4", "g3h3", "g3f3", "g3e3", "g3d3", "g3h2", "g3f2", "g3e1", "c3c8", "c3c7", "c3c6", "c3c5", "c3c4", "c3f3", "c3e3", "c3d3", "c3b3", "c3a3", "c3c2", "g1h2", "g1h1", "c1c2", "c1f1", "c1e1", "c1d1", "c1b1", "c1a1", "d4d5", "a2a3", "a2a4" ], "side_to_move": "White" }
{ "move": "e5f4", "solution": [ "e5f4", "f8f4" ] }
{ "puzzle_id": "000mr", "rating": 1957, "themes": [ "crushing", "middlegame", "short" ], "game_url": "https://lichess.org/8sVpuwso#81", "opening_tags": [], "move_number": 3, "total_moves": 4 }
{ "fen": "8/2p1k3/6p1/1p1P1p2/1P3P2/3K2Pp/7P/8 b - - 1 43", "legal_moves": [ "e7f8", "e7e8", "e7d8", "e7f7", "e7d7", "e7f6", "e7d6", "c7c6", "g6g5", "c7c5" ], "side_to_move": "Black" }
{ "move": "e7d6", "solution": [ "e7d6", "d3d4", "g6g5", "f4g5" ] }
{ "puzzle_id": "000o3", "rating": 944, "themes": [ "crushing", "endgame", "pawnEndgame", "short", "zugzwang" ], "game_url": "https://lichess.org/BAY91mF3/black#86", "opening_tags": [], "move_number": 1, "total_moves": 4 }
{ "fen": "8/2p5/3k2p1/1p1P1p2/1P1K1P2/6Pp/7P/8 b - - 3 44", "legal_moves": [ "d6e7", "d6d7", "c7c6", "g6g5", "c7c5" ], "side_to_move": "Black" }
{ "move": "g6g5", "solution": [ "g6g5", "f4g5" ] }
{ "puzzle_id": "000o3", "rating": 944, "themes": [ "crushing", "endgame", "pawnEndgame", "short", "zugzwang" ], "game_url": "https://lichess.org/BAY91mF3/black#86", "opening_tags": [], "move_number": 3, "total_moves": 4 }
{ "fen": "8/7R/8/5p2/4bk1P/8/2r2K2/6R1 w - - 7 51", "legal_moves": [ "f2f1", "f2e1" ], "side_to_move": "White" }
{ "move": "f2f1", "solution": [ "f2f1", "f4f3", "f1e1", "c2c1", "e1d2", "c1g1" ] }
{ "puzzle_id": "000qP", "rating": 1999, "themes": [ "crushing", "endgame", "exposedKing", "long", "skewer" ], "game_url": "https://lichess.org/r4xUR6fC#101", "opening_tags": [], "move_number": 1, "total_moves": 6 }
{ "fen": "8/7R/8/5p2/4b2P/5k2/2r5/5KR1 w - - 9 52", "legal_moves": [ "h7h8", "h7g7", "h7f7", "h7e7", "h7d7", "h7c7", "h7b7", "h7a7", "h7h6", "h7h5", "g1g8", "g1g7", "g1g6", "g1g5", "g1g4", "g1g3", "g1g2", "g1h1", "f1e1", "h4h5" ], "side_to_move": "White" }
{ "move": "f1e1", "solution": [ "f1e1", "c2c1", "e1d2", "c1g1" ] }
{ "puzzle_id": "000qP", "rating": 1999, "themes": [ "crushing", "endgame", "exposedKing", "long", "skewer" ], "game_url": "https://lichess.org/r4xUR6fC#101", "opening_tags": [], "move_number": 3, "total_moves": 6 }
{ "fen": "8/7R/8/5p2/4b2P/5k2/8/2r1K1R1 w - - 11 53", "legal_moves": [ "e1d2" ], "side_to_move": "White" }
{ "move": "e1d2", "solution": [ "e1d2", "c1g1" ] }
{ "puzzle_id": "000qP", "rating": 1999, "themes": [ "crushing", "endgame", "exposedKing", "long", "skewer" ], "game_url": "https://lichess.org/r4xUR6fC#101", "opening_tags": [], "move_number": 5, "total_moves": 6 }
{ "fen": "3R4/8/K7/pB2b3/1p6/1P2k3/3p4/8 w - - 4 58", "legal_moves": [ "d8h8", "d8g8", "d8f8", "d8e8", "d8c8", "d8b8", "d8a8", "d8d7", "d8d6", "d8d5", "d8d4", "d8d3", "d8d2", "a6b7", "a6a7", "a6b6", "a6a5", "b5e8", "b5d7", "b5c6", "b5c4", "b5a4", "b5d3", "b5e2", "b5f1" ], "side_to_move": "White" }
{ "move": "a6a5", "solution": [ "a6a5", "e5c7", "a5b4", "c7d8" ] }
{ "puzzle_id": "000rO", "rating": 1110, "themes": [ "crushing", "endgame", "fork", "master", "short" ], "game_url": "https://lichess.org/tzeeBEc2#115", "opening_tags": [], "move_number": 1, "total_moves": 4 }
{ "fen": "3R4/2b5/8/KB6/1p6/1P2k3/3p4/8 w - - 1 59", "legal_moves": [ "a5a6", "a5b4", "a5a4" ], "side_to_move": "White" }
{ "move": "a5b4", "solution": [ "a5b4", "c7d8" ] }
{ "puzzle_id": "000rO", "rating": 1110, "themes": [ "crushing", "endgame", "fork", "master", "short" ], "game_url": "https://lichess.org/tzeeBEc2#115", "opening_tags": [], "move_number": 3, "total_moves": 4 }
{ "fen": "2kr1b1r/p1p2pp1/2pqb3/7p/3N2n1/2NPB3/PPP2PPP/R2Q1RK1 w - - 2 13", "legal_moves": [ "d4e6", "d4c6", "d4f5", "d4b5", "d4f3", "d4b3", "d4e2", "e3h6", "e3g5", "e3f4", "e3d2", "e3c1", "c3d5", "c3b5", "c3e4", "c3a4", "c3e2", "c3b1", "g1h1", "f1e1", "d1g4", "d1f3", "d1e2", "d1d2", "d1e1", "d1c1", "d1b1", "a1c1", "a1b1", "h2h3", "g2g3", "f2f3", "b2b3", "a2a3", "h2h4", "f2f4", "b2b4", "a2a4" ], "side_to_move": "White" }
{ "move": "d4e6", "solution": [ "d4e6", "d6h2" ] }
{ "puzzle_id": "000rZ", "rating": 739, "themes": [ "kingsideAttack", "mate", "mateIn1", "oneMove", "opening" ], "game_url": "https://lichess.org/seIMDWkD#25", "opening_tags": [ "Scandinavian_Defense", "Scandinavian_Defense_Modern_Variation" ], "move_number": 1, "total_moves": 2 }
{ "fen": "r2q1rk1/5ppp/1np5/p1b5/2p1B3/P7/1P3PPP/R1BQ1RK1 b - - 1 17", "legal_moves": [ "g8h8", "f8e8", "d8e8", "d8c8", "d8b8", "d8e7", "d8d7", "d8c7", "d8f6", "d8d6", "d8g5", "d8d5", "d8h4", "d8d4", "d8d3", "d8d2", "d8d1", "a8c8", "a8b8", "a8a7", "a8a6", "b6c8", "b6d7", "b6d5", "b6a4", "c5e7", "c5d6", "c5d4", "c5b4", "c5e3", "c5a3", "c5f2", "h7h6", "g7g6", "f7f6", "a5a4", "c4c3", "h7h5", "g7g5", "f7f5" ], "side_to_move": "Black" }
{ "move": "d8f6", "solution": [ "d8f6", "d1h5", "h7h6", "h5c5" ] }
{ "puzzle_id": "00143", "rating": 1780, "themes": [ "advantage", "middlegame", "short" ], "game_url": "https://lichess.org/jcuxlI63/black#34", "opening_tags": [ "Scotch_Game", "Scotch_Game_Mieses_Variation" ], "move_number": 1, "total_moves": 4 }
{ "fen": "r4rk1/5ppp/1np2q2/p1b4Q/2p1B3/P7/1P3PPP/R1B2RK1 b - - 3 18", "legal_moves": [ "g8h8", "f8e8", "f8d8", "f8c8", "f8b8", "a8e8", "a8d8", "a8c8", "a8b8", "a8a7", "a8a6", "f6d8", "f6e7", "f6h6", "f6g6", "f6e6", "f6d6", "f6g5", "f6f5", "f6e5", "f6h4", "f6f4", "f6d4", "f6f3", "f6c3", "f6f2", "f6b2", "b6c8", "b6d7", "b6d5", "b6a4", "c5e7", "c5d6", "c5d4", "c5b4", "c5e3", "c5a3", "c5f2", "h7h6", "g7g6", "a5a4", "c4c3", "g7g5" ], "side_to_move": "Black" }
{ "move": "h7h6", "solution": [ "h7h6", "h5c5" ] }
{ "puzzle_id": "00143", "rating": 1780, "themes": [ "advantage", "middlegame", "short" ], "game_url": "https://lichess.org/jcuxlI63/black#34", "opening_tags": [ "Scotch_Game", "Scotch_Game_Mieses_Variation" ], "move_number": 3, "total_moves": 4 }
{ "fen": "r2qk2r/pp2ppbp/1n1p2p1/3Pn3/2P5/2NBBP1P/PP3P2/R2QK2R b KQkq - 0 12", "legal_moves": [ "h8g8", "h8f8", "e8f8", "e8d7", "d8c8", "d8b8", "d8d7", "d8c7", "a8c8", "a8b8", "g7f8", "g7h6", "g7f6", "b6c8", "b6d7", "b6d5", "b6c4", "b6a4", "e5d7", "e5c6", "e5g4", "e5c4", "e5f3", "e5d3", "e8g8", "h7h6", "f7f6", "e7e6", "a7a6", "g6g5", "h7h5", "f7f5", "a7a5" ], "side_to_move": "Black" }
{ "move": "e5c4", "solution": [ "e5c4", "d3c4", "b6c4", "d1a4", "d8d7", "a4c4" ] }
{ "puzzle_id": "0017R", "rating": 1677, "themes": [ "advantage", "fork", "long", "middlegame" ], "game_url": "https://lichess.org/ol84k0z4/black#24", "opening_tags": [ "Alekhine_Defense", "Alekhine_Defense_Other_variations" ], "move_number": 1, "total_moves": 6 }
{ "fen": "r2qk2r/pp2ppbp/1n1p2p1/3P4/2B5/2N1BP1P/PP3P2/R2QK2R b KQkq - 0 13", "legal_moves": [ "h8g8", "h8f8", "e8f8", "e8d7", "d8c8", "d8b8", "d8d7", "d8c7", "a8c8", "a8b8", "g7f8", "g7h6", "g7f6", "g7e5", "g7d4", "g7c3", "b6c8", "b6d7", "b6d5", "b6c4", "b6a4", "e8g8", "h7h6", "f7f6", "e7e6", "a7a6", "g6g5", "h7h5", "f7f5", "e7e5", "a7a5" ], "side_to_move": "Black" }
{ "move": "b6c4", "solution": [ "b6c4", "d1a4", "d8d7", "a4c4" ] }
{ "puzzle_id": "0017R", "rating": 1677, "themes": [ "advantage", "fork", "long", "middlegame" ], "game_url": "https://lichess.org/ol84k0z4/black#24", "opening_tags": [ "Alekhine_Defense", "Alekhine_Defense_Other_variations" ], "move_number": 3, "total_moves": 6 }
{ "fen": "r2qk2r/pp2ppbp/3p2p1/3P4/Q1n5/2N1BP1P/PP3P2/R3K2R b KQkq - 1 14", "legal_moves": [ "e8f8", "d8d7", "b7b5" ], "side_to_move": "Black" }
{ "move": "d8d7", "solution": [ "d8d7", "a4c4" ] }
{ "puzzle_id": "0017R", "rating": 1677, "themes": [ "advantage", "fork", "long", "middlegame" ], "game_url": "https://lichess.org/ol84k0z4/black#24", "opening_tags": [ "Alekhine_Defense", "Alekhine_Defense_Other_variations" ], "move_number": 5, "total_moves": 6 }
{ "fen": "5R2/1p6/p1p5/2P1rk2/2K3p1/2P1p1P1/1P5P/8 b - - 1 44", "legal_moves": [ "f5g6", "f5e6", "f5g5", "f5e4" ], "side_to_move": "Black" }
{ "move": "f5e6", "solution": [ "f5e6", "f8e8", "e6f5", "e8e5", "f5e5", "c4d3", "e5d5", "d3e3", "a6a5", "e3f4", "d5c4", "f4g4" ] }
{ "puzzle_id": "0018P", "rating": 1904, "themes": [ "crushing", "endgame", "exposedKing", "rookEndgame", "veryLong" ], "game_url": "https://lichess.org/Xg1Gtfjr/black#88", "opening_tags": [], "move_number": 1, "total_moves": 12 }
{ "fen": "4R3/1p6/p1p1k3/2P1r3/2K3p1/2P1p1P1/1P5P/8 b - - 3 45", "legal_moves": [ "e6f7", "e6d7", "e6f6", "e6f5" ], "side_to_move": "Black" }
{ "move": "e6f5", "solution": [ "e6f5", "e8e5", "f5e5", "c4d3", "e5d5", "d3e3", "a6a5", "e3f4", "d5c4", "f4g4" ] }
{ "puzzle_id": "0018P", "rating": 1904, "themes": [ "crushing", "endgame", "exposedKing", "rookEndgame", "veryLong" ], "game_url": "https://lichess.org/Xg1Gtfjr/black#88", "opening_tags": [], "move_number": 3, "total_moves": 12 }
{ "fen": "8/1p6/p1p5/2P1Rk2/2K3p1/2P1p1P1/1P5P/8 b - - 0 46", "legal_moves": [ "f5g6", "f5f6", "f5e5" ], "side_to_move": "Black" }
{ "move": "f5e5", "solution": [ "f5e5", "c4d3", "e5d5", "d3e3", "a6a5", "e3f4", "d5c4", "f4g4" ] }
{ "puzzle_id": "0018P", "rating": 1904, "themes": [ "crushing", "endgame", "exposedKing", "rookEndgame", "veryLong" ], "game_url": "https://lichess.org/Xg1Gtfjr/black#88", "opening_tags": [], "move_number": 5, "total_moves": 12 }
{ "fen": "8/1p6/p1p5/2P1k3/6p1/2PKp1P1/1P5P/8 b - - 1 47", "legal_moves": [ "e5f6", "e5e6", "e5f5", "e5d5", "b7b6", "a6a5", "e3e2", "b7b5" ], "side_to_move": "Black" }
{ "move": "e5d5", "solution": [ "e5d5", "d3e3", "a6a5", "e3f4", "d5c4", "f4g4" ] }
{ "puzzle_id": "0018P", "rating": 1904, "themes": [ "crushing", "endgame", "exposedKing", "rookEndgame", "veryLong" ], "game_url": "https://lichess.org/Xg1Gtfjr/black#88", "opening_tags": [], "move_number": 7, "total_moves": 12 }
{ "fen": "8/1p6/p1p5/2Pk4/6p1/2P1K1P1/1P5P/8 b - - 0 48", "legal_moves": [ "d5e6", "d5e5", "d5c5", "d5c4", "b7b6", "a6a5", "b7b5" ], "side_to_move": "Black" }
{ "move": "a6a5", "solution": [ "a6a5", "e3f4", "d5c4", "f4g4" ] }
{ "puzzle_id": "0018P", "rating": 1904, "themes": [ "crushing", "endgame", "exposedKing", "rookEndgame", "veryLong" ], "game_url": "https://lichess.org/Xg1Gtfjr/black#88", "opening_tags": [], "move_number": 9, "total_moves": 12 }
{ "fen": "8/1p6/2p5/p1Pk4/5Kp1/2P3P1/1P5P/8 b - - 1 49", "legal_moves": [ "d5e6", "d5c5", "d5c4", "b7b6", "a5a4", "b7b5" ], "side_to_move": "Black" }
{ "move": "d5c4", "solution": [ "d5c4", "f4g4" ] }
{ "puzzle_id": "0018P", "rating": 1904, "themes": [ "crushing", "endgame", "exposedKing", "rookEndgame", "veryLong" ], "game_url": "https://lichess.org/Xg1Gtfjr/black#88", "opening_tags": [], "move_number": 11, "total_moves": 12 }
{ "fen": "2kr3r/pp3p2/4p2p/1N1p2p1/3Q4/1P1P4/2q2PPP/5RK1 b - - 1 20", "legal_moves": [ "h8g8", "h8f8", "h8e8", "h8h7", "d8g8", "d8f8", "d8e8", "d8d7", "d8d6", "c8b8", "c8d7", "c2c7", "c2c6", "c2c5", "c2c4", "c2d3", "c2c3", "c2b3", "c2f2", "c2e2", "c2d2", "c2b2", "c2a2", "c2d1", "c2c1", "c2b1", "f7f6", "b7b6", "a7a6", "h6h5", "e6e5", "g5g4", "f7f5", "a7a5" ], "side_to_move": "Black" }
{ "move": "b7b6", "solution": [ "b7b6", "d4a1", "a7a5", "f1c1" ] }
{ "puzzle_id": "0018S", "rating": 2566, "themes": [ "advantage", "endgame", "pin", "short" ], "game_url": "https://lichess.org/H1ARO2GL/black#40", "opening_tags": [], "move_number": 1, "total_moves": 4 }
{ "fen": "2kr3r/p4p2/1p2p2p/1N1p2p1/8/1P1P4/2q2PPP/Q4RK1 b - - 1 21", "legal_moves": [ "h8g8", "h8f8", "h8e8", "h8h7", "d8g8", "d8f8", "d8e8", "d8d7", "d8d6", "c8b8", "c8d7", "c8b7", "c2c7", "c2c6", "c2c5", "c2c4", "c2d3", "c2c3", "c2b3", "c2f2", "c2e2", "c2d2", "c2b2", "c2a2", "c2d1", "c2c1", "c2b1", "f7f6", "a7a6", "h6h5", "e6e5", "g5g4", "d5d4", "f7f5", "a7a5" ], "side_to_move": "Black" }
{ "move": "a7a5", "solution": [ "a7a5", "f1c1" ] }
{ "puzzle_id": "0018S", "rating": 2566, "themes": [ "advantage", "endgame", "pin", "short" ], "game_url": "https://lichess.org/H1ARO2GL/black#40", "opening_tags": [], "move_number": 3, "total_moves": 4 }
{ "fen": "2R2r1k/pQ4pp/5rp1/3B4/q2n4/7P/P4PP1/5RK1 w - - 3 30", "legal_moves": [ "c8f8", "c8e8", "c8d8", "c8b8", "c8a8", "c8c7", "c8c6", "c8c5", "c8c4", "c8c3", "c8c2", "c8c1", "b7b8", "b7a8", "b7g7", "b7f7", "b7e7", "b7d7", "b7c7", "b7a7", "b7c6", "b7b6", "b7a6", "b7b5", "b7b4", "b7b3", "b7b2", "b7b1", "d5g8", "d5f7", "d5e6", "d5c6", "d5e4", "d5c4", "d5f3", "d5b3", "g1h2", "g1h1", "f1e1", "f1d1", "f1c1", "f1b1", "f1a1", "h3h4", "g2g3", "f2f3", "a2a3", "g2g4", "f2f4" ], "side_to_move": "White" }
{ "move": "c8c7", "solution": [ "c8c7", "d4e2", "g1h2", "a4f4", "h2h1", "e2g3", "f2g3", "f4f1" ] }
{ "puzzle_id": "001Fg", "rating": 1516, "themes": [ "advantage", "middlegame", "veryLong" ], "game_url": "https://lichess.org/y0QalMAw#59", "opening_tags": [], "move_number": 1, "total_moves": 8 }
{ "fen": "5r1k/pQR3pp/5rp1/3B4/q7/7P/P3nPP1/5RK1 w - - 5 31", "legal_moves": [ "g1h2", "g1h1" ], "side_to_move": "White" }
{ "move": "g1h2", "solution": [ "g1h2", "a4f4", "h2h1", "e2g3", "f2g3", "f4f1" ] }
{ "puzzle_id": "001Fg", "rating": 1516, "themes": [ "advantage", "middlegame", "veryLong" ], "game_url": "https://lichess.org/y0QalMAw#59", "opening_tags": [], "move_number": 3, "total_moves": 8 }
{ "fen": "5r1k/pQR3pp/5rp1/3B4/5q2/7P/P3nPPK/5R2 w - - 7 32", "legal_moves": [ "h2h1", "g2g3" ], "side_to_move": "White" }
{ "move": "h2h1", "solution": [ "h2h1", "e2g3", "f2g3", "f4f1" ] }
{ "puzzle_id": "001Fg", "rating": 1516, "themes": [ "advantage", "middlegame", "veryLong" ], "game_url": "https://lichess.org/y0QalMAw#59", "opening_tags": [], "move_number": 5, "total_moves": 8 }
{ "fen": "5r1k/pQR3pp/5rp1/3B4/5q2/6nP/P4PP1/5R1K w - - 9 33", "legal_moves": [ "h1h2", "h1g1", "f2g3" ], "side_to_move": "White" }
{ "move": "f2g3", "solution": [ "f2g3", "f4f1" ] }
{ "puzzle_id": "001Fg", "rating": 1516, "themes": [ "advantage", "middlegame", "veryLong" ], "game_url": "https://lichess.org/y0QalMAw#59", "opening_tags": [], "move_number": 7, "total_moves": 8 }
{ "fen": "6k1/pp1r1pp1/1qp1p2p/4P2P/5Q2/1P4R1/P1Pr1PP1/R5K1 b - - 4 23", "legal_moves": [ "g8h8", "g8f8", "g8h7", "d7d8", "d7e7", "d7c7", "d7d6", "d7d5", "d7d4", "d7d3", "b6d8", "b6c7", "b6a6", "b6c5", "b6b5", "b6a5", "b6d4", "b6b4", "b6e3", "b6b3", "b6f2", "d2d6", "d2d5", "d2d4", "d2d3", "d2f2", "d2e2", "d2c2", "d2d1", "g7g6", "f7f6", "a7a6", "c6c5", "g7g5", "f7f5", "a7a5" ], "side_to_move": "Black" }
{ "move": "b6d4", "solution": [ "b6d4", "f4f6", "d4f2", "f6f2", "d2f2", "g1f2" ] }
{ "puzzle_id": "001Hi", "rating": 2389, "themes": [ "advantage", "endgame", "long", "pin" ], "game_url": "https://lichess.org/tUkE0z1z/black#46", "opening_tags": [], "move_number": 1, "total_moves": 6 }
{ "fen": "6k1/pp1r1pp1/2p1pQ1p/4P2P/3q4/1P4R1/P1Pr1PP1/R5K1 b - - 6 24", "legal_moves": [ "g8h8", "g8f8", "g8h7", "d7d8", "d7e7", "d7c7", "d7d6", "d7d5", "d4d6", "d4b6", "d4e5", "d4d5", "d4c5", "d4h4", "d4g4", "d4f4", "d4e4", "d4c4", "d4b4", "d4a4", "d4e3", "d4d3", "d4c3", "d4f2", "d4b2", "d4a1", "d2d3", "d2f2", "d2e2", "d2c2", "d2d1", "g7g6", "b7b6", "a7a6", "c6c5", "g7g5", "b7b5", "a7a5" ], "side_to_move": "Black" }
{ "move": "d4f2", "solution": [ "d4f2", "f6f2", "d2f2", "g1f2" ] }
{ "puzzle_id": "001Hi", "rating": 2389, "themes": [ "advantage", "endgame", "long", "pin" ], "game_url": "https://lichess.org/tUkE0z1z/black#46", "opening_tags": [], "move_number": 3, "total_moves": 6 }
{ "fen": "6k1/pp1r1pp1/2p1p2p/4P2P/8/1P4R1/P1Pr1QP1/R5K1 b - - 0 25", "legal_moves": [ "g8h8", "g8f8", "g8h7", "d7d8", "d7e7", "d7c7", "d7d6", "d7d5", "d7d4", "d7d3", "d2d6", "d2d5", "d2d4", "d2d3", "d2f2", "d2e2", "d2c2", "d2d1", "g7g6", "f7f6", "b7b6", "a7a6", "c6c5", "g7g5", "f7f5", "b7b5", "a7a5" ], "side_to_move": "Black" }
{ "move": "d2f2", "solution": [ "d2f2", "g1f2" ] }
{ "puzzle_id": "001Hi", "rating": 2389, "themes": [ "advantage", "endgame", "long", "pin" ], "game_url": "https://lichess.org/tUkE0z1z/black#46", "opening_tags": [], "move_number": 5, "total_moves": 6 }
{ "fen": "6Qk/p1p3pp/4N3/1p6/2q1r1n1/2B5/PP4PP/3R1R1K b - - 0 28", "legal_moves": [ "h8g8" ], "side_to_move": "Black" }
{ "move": "h8g8", "solution": [ "h8g8", "f1f8" ] }
{ "puzzle_id": "001KR", "rating": 565, "themes": [ "mate", "mateIn1", "middlegame", "oneMove" ], "game_url": "https://lichess.org/TaT1Zl7z/black#56", "opening_tags": [], "move_number": 1, "total_moves": 2 }
{ "fen": "6k1/4p1bp/6p1/1p1pP3/1PpPp3/2P1P3/Q2B1KPP/3q4 b - - 2 23", "legal_moves": [ "g8h8", "g8f8", "g8f7", "g7h8", "g7f8", "g7h6", "g7f6", "g7e5", "d1h5", "d1g4", "d1a4", "d1f3", "d1b3", "d1e2", "d1d2", "d1c2", "d1h1", "d1g1", "d1f1", "d1e1", "d1c1", "d1b1", "d1a1", "h7h6", "e7e6", "g6g5", "h7h5" ], "side_to_move": "Black" }
{ "move": "d1a4", "solution": [ "d1a4", "a2a4", "b5a4", "b4b5", "g8f7", "b5b6" ] }
{ "puzzle_id": "001Oo", "rating": 2078, "themes": [ "crushing", "endgame", "long", "quietMove" ], "game_url": "https://lichess.org/8IKs77O9/black#46", "opening_tags": [], "move_number": 1, "total_moves": 6 }
{ "fen": "6k1/4p1bp/6p1/1p1pP3/QPpPp3/2P1P3/3B1KPP/8 b - - 0 24", "legal_moves": [ "g8h8", "g8f8", "g8f7", "g7h8", "g7f8", "g7h6", "g7f6", "g7e5", "b5a4", "h7h6", "e7e6", "g6g5", "h7h5" ], "side_to_move": "Black" }
{ "move": "b5a4", "solution": [ "b5a4", "b4b5", "g8f7", "b5b6" ] }
{ "puzzle_id": "001Oo", "rating": 2078, "themes": [ "crushing", "endgame", "long", "quietMove" ], "game_url": "https://lichess.org/8IKs77O9/black#46", "opening_tags": [], "move_number": 3, "total_moves": 6 }
{ "fen": "6k1/4p1bp/6p1/1P1pP3/p1pPp3/2P1P3/3B1KPP/8 b - - 0 25", "legal_moves": [ "g8h8", "g8f8", "g8f7", "g7h8", "g7f8", "g7h6", "g7f6", "g7e5", "h7h6", "e7e6", "g6g5", "a4a3", "h7h5" ], "side_to_move": "Black" }
{ "move": "g8f7", "solution": [ "g8f7", "b5b6" ] }
{ "puzzle_id": "001Oo", "rating": 2078, "themes": [ "crushing", "endgame", "long", "quietMove" ], "game_url": "https://lichess.org/8IKs77O9/black#46", "opening_tags": [], "move_number": 5, "total_moves": 6 }
{ "fen": "4r1k1/5ppp/r1p5/p1n1RP2/8/2P2N1P/2P3P1/3R2K1 b - - 0 21", "legal_moves": [ "g8h8", "g8f8", "e8f8", "e8d8", "e8c8", "e8b8", "e8a8", "e8e7", "e8e6", "e8e5", "a6a8", "a6a7", "a6b6", "c5d7", "c5b7", "c5e6", "c5e4", "c5a4", "c5d3", "c5b3", "h7h6", "g7g6", "f7f6", "a5a4", "h7h5", "g7g5" ], "side_to_move": "Black" }
{ "move": "e8e5", "solution": [ "e8e5", "d1d8", "e5e8", "d8e8" ] }
{ "puzzle_id": "001Wz", "rating": 1118, "themes": [ "backRankMate", "endgame", "mate", "mateIn2", "short" ], "game_url": "https://lichess.org/84RH3LaP/black#42", "opening_tags": [], "move_number": 1, "total_moves": 4 }
{ "fen": "3R2k1/5ppp/r1p5/p1n1rP2/8/2P2N1P/2P3P1/6K1 b - - 1 22", "legal_moves": [ "e5e8" ], "side_to_move": "Black" }
{ "move": "e5e8", "solution": [ "e5e8", "d8e8" ] }
{ "puzzle_id": "001Wz", "rating": 1118, "themes": [ "backRankMate", "endgame", "mate", "mateIn2", "short" ], "game_url": "https://lichess.org/84RH3LaP/black#42", "opening_tags": [], "move_number": 3, "total_moves": 4 }
{ "fen": "1qr2rk1/pb2bppp/8/8/2p1N3/P1Bn2P1/2Q2PBP/1R3RK1 b - - 3 23", "legal_moves": [ "g8h8", "f8e8", "f8d8", "c8e8", "c8d8", "c8c7", "c8c6", "c8c5", "b8a8", "b8c7", "b8d6", "b8e5", "b8f4", "b8g3", "e7d8", "e7f6", "e7d6", "e7g5", "e7c5", "e7h4", "e7b4", "e7a3", "b7a8", "b7c6", "b7a6", "b7d5", "b7e4", "d3e5", "d3c5", "d3f4", "d3b4", "d3f2", "d3b2", "d3e1", "d3c1", "h7h6", "g7g6", "f7f6", "a7a6", "h7h5", "g7g5", "f7f5", "a7a5" ], "side_to_move": "Black" }
{ "move": "b8c7", "solution": [ "b8c7", "b1b7", "c7b7", "e4f6", "e7f6", "g2b7" ] }
{ "puzzle_id": "001XA", "rating": 1667, "themes": [ "crushing", "discoveredAttack", "long", "master", "middlegame", "sacrifice" ], "game_url": "https://lichess.org/KZRiN695/black#46", "opening_tags": [], "move_number": 1, "total_moves": 6 }
{ "fen": "2r2rk1/pRq1bppp/8/8/2p1N3/P1Bn2P1/2Q2PBP/5RK1 b - - 0 24", "legal_moves": [ "g8h8", "f8e8", "f8d8", "c8e8", "c8d8", "c8b8", "c8a8", "e7d8", "e7f6", "e7d6", "e7g5", "e7c5", "e7h4", "e7b4", "e7a3", "c7d8", "c7b8", "c7d7", "c7b7", "c7d6", "c7c6", "c7b6", "c7e5", "c7c5", "c7a5", "c7f4", "c7g3", "d3e5", "d3c5", "d3f4", "d3b4", "d3f2", "d3b2", "d3e1", "d3c1", "h7h6", "g7g6", "f7f6", "a7a6", "h7h5", "g7g5", "f7f5", "a7a5" ], "side_to_move": "Black" }
{ "move": "c7b7", "solution": [ "c7b7", "e4f6", "e7f6", "g2b7" ] }
{ "puzzle_id": "001XA", "rating": 1667, "themes": [ "crushing", "discoveredAttack", "long", "master", "middlegame", "sacrifice" ], "game_url": "https://lichess.org/KZRiN695/black#46", "opening_tags": [], "move_number": 3, "total_moves": 6 }
{ "fen": "2r2rk1/pq2bppp/5N2/8/2p5/P1Bn2P1/2Q2PBP/5RK1 b - - 1 25", "legal_moves": [ "g8h8", "e7f6", "g7f6" ], "side_to_move": "Black" }
{ "move": "e7f6", "solution": [ "e7f6", "g2b7" ] }
{ "puzzle_id": "001XA", "rating": 1667, "themes": [ "crushing", "discoveredAttack", "long", "master", "middlegame", "sacrifice" ], "game_url": "https://lichess.org/KZRiN695/black#46", "opening_tags": [], "move_number": 5, "total_moves": 6 }
{ "fen": "6k1/5p2/4p3/P1B5/2P4P/4Pnp1/Rb1rN3/5K2 b - - 1 33", "legal_moves": [ "g8h8", "g8h7", "g8g7", "f3g5", "f3e5", "f3h4", "f3d4", "f3h2", "f3g1", "f3e1", "d2d8", "d2d7", "d2d6", "d2d5", "d2d4", "d2d3", "d2e2", "d2c2", "d2d1", "b2h8", "b2g7", "b2f6", "b2e5", "b2d4", "b2c3", "b2a3", "b2c1", "b2a1", "f7f6", "e6e5", "g3g2", "f7f5" ], "side_to_move": "Black" }
{ "move": "d2e2", "solution": [ "d2e2", "f1e2", "g3g2", "e3e4", "f3d4", "e2f2" ] }
{ "puzzle_id": "001aK", "rating": 2027, "themes": [ "crushing", "endgame", "hangingPiece", "long", "quietMove" ], "game_url": "https://lichess.org/Epr0AiEh/black#66", "opening_tags": [], "move_number": 1, "total_moves": 6 }
{ "fen": "6k1/5p2/4p3/P1B5/2P4P/4Pnp1/Rb2K3/8 b - - 0 34", "legal_moves": [ "g8h8", "g8h7", "g8g7", "f3g5", "f3e5", "f3h4", "f3d4", "f3h2", "f3d2", "f3g1", "f3e1", "b2h8", "b2g7", "b2f6", "b2e5", "b2d4", "b2c3", "b2a3", "b2c1", "b2a1", "f7f6", "e6e5", "g3g2", "f7f5" ], "side_to_move": "Black" }
{ "move": "g3g2", "solution": [ "g3g2", "e3e4", "f3d4", "e2f2" ] }
{ "puzzle_id": "001aK", "rating": 2027, "themes": [ "crushing", "endgame", "hangingPiece", "long", "quietMove" ], "game_url": "https://lichess.org/Epr0AiEh/black#66", "opening_tags": [], "move_number": 3, "total_moves": 6 }
{ "fen": "6k1/5p2/4p3/P1B5/2P1P2P/5n2/Rb2K1p1/8 b - - 0 35", "legal_moves": [ "g8h8", "g8h7", "g8g7", "f3g5", "f3e5", "f3h4", "f3d4", "f3h2", "f3d2", "f3g1", "f3e1", "b2h8", "b2g7", "b2f6", "b2e5", "b2d4", "b2c3", "b2a3", "b2c1", "b2a1", "f7f6", "e6e5", "g2g1q", "g2g1r", "g2g1b", "g2g1n", "f7f5" ], "side_to_move": "Black" }
{ "move": "f3d4", "solution": [ "f3d4", "e2f2" ] }
{ "puzzle_id": "001aK", "rating": 2027, "themes": [ "crushing", "endgame", "hangingPiece", "long", "quietMove" ], "game_url": "https://lichess.org/Epr0AiEh/black#66", "opening_tags": [], "move_number": 5, "total_moves": 6 }
{ "fen": "8/3B2pp/p5k1/2p3P1/1p1p1K2/8/1P6/8 b - - 0 38", "legal_moves": [ "g6f7", "g6h5", "h7h6", "a6a5", "c5c4", "d4d3", "b4b3", "h7h5" ], "side_to_move": "Black" }
{ "move": "c5c4", "solution": [ "c5c4", "d7e8" ] }
{ "puzzle_id": "001cr", "rating": 1606, "themes": [ "bishopEndgame", "endgame", "mate", "mateIn1", "oneMove" ], "game_url": "https://lichess.org/7FFNwibw/black#76", "opening_tags": [], "move_number": 1, "total_moves": 2 }
{ "fen": "r6r/1pNk1ppp/2np4/b3p3/4P1b1/N1Q5/P4PPP/R3KB1R w KQ - 3 18", "legal_moves": [ "c7e8", "c7a8", "c7e6", "c7a6", "c7d5", "c7b5", "c3a5", "c3b4", "c3d2", "a3b5", "a3c4", "a3c2", "a3b1", "h1g1", "f1a6", "f1b5", "f1c4", "f1d3", "f1e2", "e1d2", "a1d1", "a1c1", "a1b1", "h2h3", "g2g3", "f2f3", "h2h4", "f2f4" ], "side_to_move": "White" }
{ "move": "c7a8", "solution": [ "c7a8", "a5c3" ] }
{ "puzzle_id": "001gi", "rating": 820, "themes": [ "bodenMate", "hangingPiece", "mate", "mateIn1", "middlegame", "oneMove" ], "game_url": "https://lichess.org/1sV2Hr22#35", "opening_tags": [ "Sicilian_Defense", "Sicilian_Defense_Other_variations" ], "move_number": 1, "total_moves": 2 }
{ "fen": "2r3k1/2r4p/4p1p1/1p1q1pP1/p1bP1P1Q/P6R/5B2/2R3K1 b - - 5 34", "legal_moves": [ "g8h8", "g8f8", "g8g7", "g8f7", "c8f8", "c8e8", "c8d8", "c8b8", "c8a8", "c7g7", "c7f7", "c7e7", "c7d7", "c7b7", "c7a7", "c7c6", "c7c5", "d5d8", "d5a8", "d5d7", "d5b7", "d5d6", "d5c6", "d5e5", "d5c5", "d5e4", "d5d4", "d5f3", "d5g2", "d5h1", "c4d3", "c4b3", "c4e2", "c4a2", "c4f1", "h7h6", "e6e5", "b5b4", "h7h5" ], "side_to_move": "Black" }
{ "move": "c4e2", "solution": [ "c4e2", "h4h7", "c7h7", "c1c8", "g8g7", "c8c7" ] }
{ "puzzle_id": "001h8", "rating": 1780, "themes": [ "crushing", "deflection", "kingsideAttack", "long", "middlegame", "sacrifice" ], "game_url": "https://lichess.org/IxCahP6X/black#68", "opening_tags": [], "move_number": 1, "total_moves": 6 }
{ "fen": "2r3k1/2r4Q/4p1p1/1p1q1pP1/p2P1P2/P6R/4bB2/2R3K1 b - - 0 35", "legal_moves": [ "g8f8", "c7h7" ], "side_to_move": "Black" }
{ "move": "c7h7", "solution": [ "c7h7", "c1c8", "g8g7", "c8c7" ] }
{ "puzzle_id": "001h8", "rating": 1780, "themes": [ "crushing", "deflection", "kingsideAttack", "long", "middlegame", "sacrifice" ], "game_url": "https://lichess.org/IxCahP6X/black#68", "opening_tags": [], "move_number": 3, "total_moves": 6 }
{ "fen": "2R3k1/7r/4p1p1/1p1q1pP1/p2P1P2/P6R/4bB2/6K1 b - - 0 36", "legal_moves": [ "g8g7", "g8f7", "d5d8" ], "side_to_move": "Black" }
{ "move": "g8g7", "solution": [ "g8g7", "c8c7" ] }
{ "puzzle_id": "001h8", "rating": 1780, "themes": [ "crushing", "deflection", "kingsideAttack", "long", "middlegame", "sacrifice" ], "game_url": "https://lichess.org/IxCahP6X/black#68", "opening_tags": [], "move_number": 5, "total_moves": 6 }
{ "fen": "rnbq3r/1p2bkpp/p4n2/8/2pNP3/2N5/PPP3PP/R1BQ1RK1 b - - 1 11", "legal_moves": [ "h8g8", "h8f8", "h8e8", "d8g8", "d8f8", "d8e8", "d8d7", "d8c7", "d8d6", "d8b6", "d8d5", "d8a5", "d8d4", "c8d7", "c8e6", "c8f5", "c8g4", "c8h3", "b8d7", "b8c6", "a8a7", "f7g8", "f7f8", "f7e8", "f7g6", "e7f8", "e7d6", "e7c5", "e7b4", "e7a3", "h7h6", "g7g6", "b7b6", "a6a5", "h7h5", "g7g5", "b7b5" ], "side_to_move": "Black" }
{ "move": "e7c5", "solution": [ "e7c5", "d1h5", "f7g8", "h5c5" ] }
{ "puzzle_id": "001kG", "rating": 1904, "themes": [ "advantage", "opening", "pin", "short" ], "game_url": "https://lichess.org/xXAEaVto/black#22", "opening_tags": [ "Sicilian_Defense", "Sicilian_Defense_Najdorf_Variation" ], "move_number": 1, "total_moves": 4 }
{ "fen": "rnbq3r/1p3kpp/p4n2/2b4Q/2pNP3/2N5/PPP3PP/R1B2RK1 b - - 3 12", "legal_moves": [ "f7g8", "f7f8", "f7e7", "g7g6" ], "side_to_move": "Black" }
{ "move": "f7g8", "solution": [ "f7g8", "h5c5" ] }
{ "puzzle_id": "001kG", "rating": 1904, "themes": [ "advantage", "opening", "pin", "short" ], "game_url": "https://lichess.org/xXAEaVto/black#22", "opening_tags": [ "Sicilian_Defense", "Sicilian_Defense_Najdorf_Variation" ], "move_number": 3, "total_moves": 4 }
{ "fen": "7r/6k1/2b1pp2/8/P1N3p1/5nP1/4RP2/Q4K2 w - - 2 38", "legal_moves": [ "c4d6", "c4b6", "c4e5", "c4a5", "c4e3", "c4a3", "c4d2", "c4b2", "e2e6", "e2e5", "e2e4", "e2e3", "e2d2", "e2c2", "e2b2", "e2a2", "e2e1", "f1g2", "a1f6", "a1e5", "a1d4", "a1c3", "a1a3", "a1b2", "a1a2", "a1e1", "a1d1", "a1c1", "a1b1", "a4a5" ], "side_to_move": "White" }
{ "move": "e2e6", "solution": [ "e2e6", "h8h1", "f1e2", "h1a1" ] }
{ "puzzle_id": "001m3", "rating": 1459, "themes": [ "advantage", "endgame", "short", "skewer" ], "game_url": "https://lichess.org/LELOz22f#75", "opening_tags": [], "move_number": 1, "total_moves": 4 }
{ "fen": "8/6k1/2b1Rp2/8/P1N3p1/5nP1/5P2/Q4K1r w - - 1 39", "legal_moves": [ "f1g2", "f1e2" ], "side_to_move": "White" }
{ "move": "f1e2", "solution": [ "f1e2", "h1a1" ] }
{ "puzzle_id": "001m3", "rating": 1459, "themes": [ "advantage", "endgame", "short", "skewer" ], "game_url": "https://lichess.org/LELOz22f#75", "opening_tags": [], "move_number": 3, "total_moves": 4 }
{ "fen": "5r1k/pp4pp/5p2/1BbQp1r1/6K1/7P/1PP3P1/3R3R w - - 2 26", "legal_moves": [ "g4h4", "g4f3" ], "side_to_move": "White" }
{ "move": "g4h4", "solution": [ "g4h4", "c5f2", "g2g3", "f2g3" ] }
{ "puzzle_id": "001om", "rating": 1018, "themes": [ "mate", "mateIn2", "middlegame", "short" ], "game_url": "https://lichess.org/VWOIWtIh#51", "opening_tags": [], "move_number": 1, "total_moves": 4 }
{ "fen": "5r1k/pp4pp/5p2/1B1Qp1r1/7K/7P/1PP2bP1/3R3R w - - 4 27", "legal_moves": [ "g2g3" ], "side_to_move": "White" }
{ "move": "g2g3", "solution": [ "g2g3", "f2g3" ] }
{ "puzzle_id": "001om", "rating": 1018, "themes": [ "mate", "mateIn2", "middlegame", "short" ], "game_url": "https://lichess.org/VWOIWtIh#51", "opening_tags": [], "move_number": 3, "total_moves": 4 }
{ "fen": "r4rk1/pp3ppp/3b4/2p1pPB1/7N/2PP3n/PP4PP/R2Q1RqK w - - 5 18", "legal_moves": [ "f1g1" ], "side_to_move": "White" }
{ "move": "f1g1", "solution": [ "f1g1", "h3f2" ] }
{ "puzzle_id": "001pC", "rating": 895, "themes": [ "mate", "mateIn1", "middlegame", "oneMove", "smotheredMate" ], "game_url": "https://lichess.org/d04UP3XD#35", "opening_tags": [ "Sicilian_Defense", "Sicilian_Defense_McDonnell_Attack" ], "move_number": 1, "total_moves": 2 }
{ "fen": "2r3k1/p1q2pp1/Q3p2p/b1Np4/2nP1P2/4P1P1/5K1P/2B1N3 b - - 3 33", "legal_moves": [ "g8h8", "g8f8", "g8h7", "c8f8", "c8e8", "c8d8", "c8b8", "c8a8", "c7d8", "c7b8", "c7e7", "c7d7", "c7b7", "c7d6", "c7c6", "c7b6", "c7e5", "c7c5", "c7f4", "a5b6", "a5b4", "a5c3", "a5d2", "a5e1", "c4d6", "c4b6", "c4e5", "c4e3", "c4a3", "c4d2", "c4b2", "g7g6", "f7f6", "h6h5", "e6e5", "g7g5", "f7f5" ], "side_to_move": "Black" }
{ "move": "c7b6", "solution": [ "c7b6", "a6c8", "g8h7", "c8b7" ] }
{ "puzzle_id": "001u3", "rating": 2175, "themes": [ "advantage", "hangingPiece", "middlegame", "short" ], "game_url": "https://lichess.org/BBn6ipaK/black#66", "opening_tags": [], "move_number": 1, "total_moves": 4 }
{ "fen": "2Q3k1/p4pp1/1q2p2p/b1Np4/2nP1P2/4P1P1/5K1P/2B1N3 b - - 0 34", "legal_moves": [ "g8h7", "b6d8" ], "side_to_move": "Black" }
{ "move": "g8h7", "solution": [ "g8h7", "c8b7" ] }
{ "puzzle_id": "001u3", "rating": 2175, "themes": [ "advantage", "hangingPiece", "middlegame", "short" ], "game_url": "https://lichess.org/BBn6ipaK/black#66", "opening_tags": [], "move_number": 3, "total_moves": 4 }
{ "fen": "6k1/1p3pp1/1p5p/2r1p3/2n5/r3PN2/2RnNPPP/2R3K1 b - - 1 32", "legal_moves": [ "g8h8", "g8f8", "g8h7", "c5c8", "c5c7", "c5c6", "c5d5", "c5b5", "c5a5", "c4d6", "c4a5", "c4e3", "c4b2", "a3a8", "a3a7", "a3a6", "a3a5", "a3a4", "a3e3", "a3d3", "a3c3", "a3b3", "a3a2", "a3a1", "d2e4", "d2f3", "d2b3", "d2f1", "d2b1", "g7g6", "f7f6", "h6h5", "b6b5", "e5e4", "g7g5", "f7f5" ], "side_to_move": "Black" }
{ "move": "f7f6", "solution": [ "f7f6", "f3d2", "c4d2", "c2d2", "c5c1", "e2c1" ] }
{ "puzzle_id": "001uD", "rating": 1832, "themes": [ "advantage", "long", "middlegame" ], "game_url": "https://lichess.org/2qkVLUl6/black#64", "opening_tags": [], "move_number": 1, "total_moves": 6 }
{ "fen": "6k1/1p4p1/1p3p1p/2r1p3/2n5/r3P3/2RNNPPP/2R3K1 b - - 0 33", "legal_moves": [ "g8h8", "g8f8", "g8h7", "g8f7", "c5c8", "c5c7", "c5c6", "c5d5", "c5b5", "c5a5", "c4d6", "c4a5", "c4e3", "c4d2", "c4b2", "a3a8", "a3a7", "a3a6", "a3a5", "a3a4", "a3e3", "a3d3", "a3c3", "a3b3", "a3a2", "a3a1", "g7g6", "h6h5", "f6f5", "b6b5", "e5e4", "g7g5" ], "side_to_move": "Black" }
{ "move": "c4d2", "solution": [ "c4d2", "c2d2", "c5c1", "e2c1" ] }
{ "puzzle_id": "001uD", "rating": 1832, "themes": [ "advantage", "long", "middlegame" ], "game_url": "https://lichess.org/2qkVLUl6/black#64", "opening_tags": [], "move_number": 3, "total_moves": 6 }
{ "fen": "6k1/1p4p1/1p3p1p/2r1p3/8/r3P3/3RNPPP/2R3K1 b - - 0 34", "legal_moves": [ "g8h8", "g8f8", "g8h7", "g8f7", "c5c8", "c5c7", "c5c6", "c5d5", "c5b5", "c5a5", "c5c4", "c5c3", "c5c2", "c5c1", "a3a8", "a3a7", "a3a6", "a3a5", "a3a4", "a3e3", "a3d3", "a3c3", "a3b3", "a3a2", "a3a1", "g7g6", "h6h5", "f6f5", "b6b5", "e5e4", "g7g5" ], "side_to_move": "Black" }
{ "move": "c5c1", "solution": [ "c5c1", "e2c1" ] }
{ "puzzle_id": "001uD", "rating": 1832, "themes": [ "advantage", "long", "middlegame" ], "game_url": "https://lichess.org/2qkVLUl6/black#64", "opening_tags": [], "move_number": 5, "total_moves": 6 }
{ "fen": "1rb2rk1/q5P1/4p2p/3p3p/3P1P2/2P5/2QK3P/3R2R1 b - - 0 29", "legal_moves": [ "g8f7", "f8e8", "f8d8", "f8f7", "f8f6", "f8f5", "f8f4", "c8d7", "c8b7", "c8a6", "b8a8", "b8b7", "b8b6", "b8b5", "b8b4", "b8b3", "b8b2", "b8b1", "a7a8", "a7g7", "a7f7", "a7e7", "a7d7", "a7c7", "a7b7", "a7b6", "a7a6", "a7c5", "a7a5", "a7d4", "a7a4", "a7a3", "a7a2", "a7a1", "e6e5", "h5h4" ], "side_to_move": "Black" }
{ "move": "f8f7", "solution": [ "f8f7", "c2h7", "g8h7", "g7g8q" ] }
{ "puzzle_id": "001w5", "rating": 1039, "themes": [ "advancedPawn", "attraction", "mate", "mateIn2", "middlegame", "promotion", "short" ], "game_url": "https://lichess.org/0e1vxAEn/black#58", "opening_tags": [], "move_number": 1, "total_moves": 4 }
{ "fen": "1rb3k1/q4rPQ/4p2p/3p3p/3P1P2/2P5/3K3P/3R2R1 b - - 2 30", "legal_moves": [ "g8h7" ], "side_to_move": "Black" }
{ "move": "g8h7", "solution": [ "g8h7", "g7g8q" ] }
{ "puzzle_id": "001w5", "rating": 1039, "themes": [ "advancedPawn", "attraction", "mate", "mateIn2", "middlegame", "promotion", "short" ], "game_url": "https://lichess.org/0e1vxAEn/black#58", "opening_tags": [], "move_number": 3, "total_moves": 4 }
{ "fen": "6nr/pp3p1p/k1p5/8/1QN5/2P1P3/4KPqP/8 b - - 5 26", "legal_moves": [ "g8e7", "g8h6", "g8f6", "g2g7", "g2g6", "g2g5", "g2d5", "g2g4", "g2e4", "g2h3", "g2g3", "g2f3", "g2h2", "g2f2", "g2h1", "g2g1", "g2f1", "h7h6", "f7f6", "b7b6", "c6c5", "h7h5", "f7f5", "b7b5" ], "side_to_move": "Black" }
{ "move": "b7b5", "solution": [ "b7b5", "b4a5", "a6b7", "c4d6", "b7b8", "a5d8" ] }
{ "puzzle_id": "001wR", "rating": 1212, "themes": [ "endgame", "long", "mate", "mateIn3" ], "game_url": "https://lichess.org/ruvbd9JW/black#52", "opening_tags": [], "move_number": 1, "total_moves": 6 }
{ "fen": "6nr/p4p1p/k1p5/Qp6/2N5/2P1P3/4KPqP/8 b - - 1 27", "legal_moves": [ "a6b7" ], "side_to_move": "Black" }
{ "move": "a6b7", "solution": [ "a6b7", "c4d6", "b7b8", "a5d8" ] }
{ "puzzle_id": "001wR", "rating": 1212, "themes": [ "endgame", "long", "mate", "mateIn3" ], "game_url": "https://lichess.org/ruvbd9JW/black#52", "opening_tags": [], "move_number": 3, "total_moves": 6 }
{ "fen": "6nr/pk3p1p/2pN4/Qp6/8/2P1P3/4KPqP/8 b - - 3 28", "legal_moves": [ "b7b8", "b7a8" ], "side_to_move": "Black" }
{ "move": "b7b8", "solution": [ "b7b8", "a5d8" ] }
{ "puzzle_id": "001wR", "rating": 1212, "themes": [ "endgame", "long", "mate", "mateIn3" ], "game_url": "https://lichess.org/ruvbd9JW/black#52", "opening_tags": [], "move_number": 5, "total_moves": 6 }
{ "fen": "r3k2r/pb1p1ppp/1b4q1/1Q2P3/8/2NP1Pn1/PP4PP/R1B2R1K w kq - 1 17", "legal_moves": [ "h2g3" ], "side_to_move": "White" }
{ "move": "h2g3", "solution": [ "h2g3", "g6h5" ] }
{ "puzzle_id": "001wb", "rating": 1252, "themes": [ "mate", "mateIn1", "middlegame", "oneMove" ], "game_url": "https://lichess.org/hNzYRMWP#33", "opening_tags": [ "Ruy_Lopez", "Ruy_Lopez_Bird_Variation" ], "move_number": 1, "total_moves": 2 }
{ "fen": "r4rk1/p3ppbp/Pp1q1np1/3PpbB1/2B5/2N5/1PPQ1PPP/3RR1K1 w - - 4 18", "legal_moves": [ "g5h6", "g5f6", "g5h4", "g5f4", "g5e3", "c4b5", "c4d3", "c4b3", "c4e2", "c4a2", "c4f1", "c3b5", "c3e4", "c3a4", "c3e2", "c3a2", "c3b1", "d2f4", "d2d4", "d2e3", "d2d3", "d2e2", "d2c1", "g1h1", "g1f1", "e1e5", "e1e4", "e1e3", "e1e2", "e1f1", "d1c1", "d1b1", "d1a1", "h2h3", "g2g3", "f2f3", "b2b3", "h2h4", "g2g4", "f2f4", "b2b4" ], "side_to_move": "White" }
{ "move": "f2f3", "solution": [ "f2f3", "d6c5", "g1h1", "c5c4" ] }
{ "puzzle_id": "001wr", "rating": 947, "themes": [ "advantage", "fork", "master", "masterVsMaster", "middlegame", "short" ], "game_url": "https://lichess.org/KnJ2mojX#35", "opening_tags": [ "Pirc_Defense", "Pirc_Defense_Classical_Variation" ], "move_number": 1, "total_moves": 4 }
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