fen stringlengths 28 76 | move stringlengths 2 7 | question stringlengths 20 48 | answer stringlengths 2 34 | task_type stringclasses 7
values |
|---|---|---|---|---|
r4r1k/2p3pp/p3Q3/1p2PpN1/P2P4/2q5/6bP/R4R1K w - - 0 27 | b7g2 | Is the White king in check? | Yes | check |
r1bqk2r/1pp1bppp/p1p2n2/4p3/4P3/5N2/PPPP1PPP/RNBQ1RK1 w kq - 0 7 | Re1 | Are there any open files in this position? | No | files |
r1bqk2r/pp2bn1p/3p1ppB/8/8/2N1Q3/P3BPPP/R2R2K1 b kq - 1 20 | Bd7 | What is the material balance in this position? | Black is up 2 pawns of material | material |
r5k1/2pq1pp1/1rn4p/3pP3/1p1P4/4B2P/PR3PP1/1QR3K1 b - - 3 25 | Rab8 | Is the move from c6 to e5 legal? | Yes | legality |
3r2k1/3B1ppp/1P1n4/2pPp3/8/2K2P2/6PP/R7 b - - 2 36 | Rxd7 | What piece is on f7? | Black Pawn | occupancy |
8/3Q4/p3rkp1/1p1p3p/2r4P/6K1/P4PP1/8 w - - 0 38 | Qxd5 | Is the b-file open, semi-open, or closed? | semi-open for White | files |
r3kbnr/ppp2ppp/2n5/2Pqpb2/1P1p4/4PN2/PB1P1PPP/RN1QKB1R w KQkq - 3 9 | Qa4 | What piece is on g6? | Empty | occupancy |
rnbqkb1r/pp3ppp/2p2n2/3p2B1/2BQ4/2N2N2/PPP2PPP/R3K2R w KQkq - 0 8 | O-O-O | Is the White king in check? | No | check |
rnbqk1nr/pppp1ppp/8/2b1p2Q/2B1P3/8/PPPP1PPP/RNB1K1NR b KQkq - 3 3 | Nc6 | Is the move from c8 to b6 legal? | No | legality |
8/p1p5/4kp2/1pN1p1pp/8/2P5/PP3PPP/6K1 b - - 7 26 | d7c5 | Is the White king in check? | No | check |
rn1q1bk1/p4ppp/2p5/1p6/3PrP2/2P3Q1/PPKB2PP/R6R b - - 3 19 | d1c2 | What is the material balance in this position? | Black is up 2 pawns of material | material |
2k3nr/1bp1q1b1/pp4pp/8/2Q2B2/2N5/PPP3PP/2KR1R2 w - - 2 20 | Rfe1 | What piece is on c2? | White Pawn | occupancy |
8/6pp/7k/3p2Q1/2p2P2/B1P2bP1/P1P4P/R5K1 b - - 2 32 | f5g5 | Is the Black king in check? | Yes | check |
3r2k1/1p3ppp/p1p2q2/3n1P2/8/1B4PP/PPQ2P2/4R2K w - - 2 24 | Kg2 | Does White have any isolated pawns? | No | structure |
r1br1bk1/ppp3pp/q4p2/3P4/1nN5/2N1B2P/PPP1QPP1/R4RK1 b - - 1 18 | Nxd5 | Identify any White knight outposts on the board. | None | outposts |
5rk1/2qp1pb1/b5p1/p3B2p/P7/1BP4P/1P3PP1/R2QR1K1 b - - 0 20 | f4e5 | What is the material balance in this position? | White is up 6 pawns of material | material |
8/pp4p1/4ppK1/1P6/4k3/P3P3/8/2B5 b - - 6 38 | f5 | What piece is on h6? | Empty | occupancy |
r3kb1r/1bqp1ppp/p3pn2/1p6/4P3/P1PB1N1P/1PQN1Pn1/R1B1K2R w KQkq - 0 14 | f4g2 | Is the White king in check? | Yes | check |
rnb1k2r/pp3ppp/3qpn2/3p4/3p4/2P1PN2/PP1N1PPP/R2QKB1R w KQkq - 0 8 | exd4 | Identify any Black knight outposts on the board. | None | outposts |
r4rk1/1p3ppp/p1p1b3/6R1/3p1R1B/5Q1P/5PP1/1q4K1 w - - 2 25 | g6b1 | What is the material balance in this position? | Black is up 4 pawns of material | material |
6q1/pppk4/2n1b2Q/3pp3/3PP3/4P3/PPP3PP/6K1 b - - 0 23 | dxe4 | What piece is on f5? | Empty | occupancy |
1rr3k1/p4p1p/6p1/3Q4/2P1p2q/4P3/PP1R3P/2KR4 w - - 1 29 | b3 | What piece is on f8? | Empty | occupancy |
r1b1k2r/pp3ppp/2n2p2/3q4/3P4/2P2N2/P2Q1PPP/R3KB1R b KQkq - 1 11 | O-O | Identify any Black knight outposts on the board. | None | outposts |
5q2/pp4kp/3p4/2p1rp1Q/P2n4/1P1B4/2P3PP/5RK1 w - - 1 22 | c3 | Identify any Black knight outposts on the board. | e4, e5 | outposts |
6k1/2p2p2/1p1p2p1/2nP3p/7P/6P1/Pq3PBK/4Q3 w - - 1 33 | f4 | Is the move from h4 to c4 legal? | No | legality |
8/7p/8/6p1/1k2KP1P/8/8/5b2 w - - 0 17 | hxg5 | Is the e-file open, semi-open, or closed? | open | files |
r3n1k1/1bqr1pbp/2p2n2/1pP2N2/1P6/1Q3B1P/1B3PP1/2R1R1K1 w - - 1 27 | Nxg7 | Identify any White knight outposts on the board. | None | outposts |
8/7k/5R1P/7K/5p2/8/6r1/8 w - - 0 55 | Rxf4 | Does White have any isolated pawns? | Yes: h6 | structure |
2r5/5p1p/4k3/4P3/4K1P1/2p4P/8/2R5 b - - 2 38 | c2 | Are there any open files in this position? | Yes: a, b, d | files |
6q1/1r6/kn4P1/pp1pPP1r/b1pP4/P1P1Q2p/R1P4B/5RK1 b - - 0 41 | Rf7 | What piece is on h5? | Black Rook | occupancy |
r3k2r/p1p2pp1/2p1b3/2bpP2p/6nq/3B1N1P/PPP1QPP1/R1B2RK1 b kq - 3 12 | Qg3 | Is the White king in check? | No | check |
r2q1rk1/1bp1bppp/p1np1n2/1p2p3/3PP3/1BP2N1P/PP3PP1/RNBQR1K1 b - - 4 12 | Re8 | Is the h-file open, semi-open, or closed? | closed | files |
8/1p1kpQ2/1pnp4/4b1B1/4qp1P/8/5PP1/5RK1 b - - 0 28 | b5 | Identify any Black knight outposts on the board. | a5, c5 | outposts |
4r1k1/p4ppp/8/1p6/1b1n4/2N4P/2P3P1/2KR4 w - - 0 29 | a5b4 | What is the material balance in this position? | Black is up 5 pawns of material | material |
5k2/8/6p1/R4p1p/5P1P/P1rpK1P1/5P2/8 w - - 0 3 | Ra7 | Is the move from h4 to g3 legal? | No | legality |
1b3r1k/7p/p7/3Bp1p1/5P1q/2Q5/P4P1P/4R1K1 w - - 0 28 | Rxe5 | Identify any Black knight outposts on the board. | d4, f4, h4 | outposts |
r1b2rk1/2qn1p1p/2n1p1p1/1B1pP2N/pp3P2/4B1Q1/PPP3PP/1K1R3R w - - 2 21 | Rd3 | Does White have any passed pawns? | No | structure |
5r1k/p3N1pp/4pn2/7r/Np6/4BPn1/P5P1/R2R2K1 w - - 5 24 | Nf5 | Identify any White knight outposts on the board. | e4 | outposts |
r6r/2pk1pb1/p1Np2pp/B2Pp3/4P3/PQ1q4/1P3n2/1KR3R1 w - - 0 25 | h3d3 | Is the White king in check? | Yes | check |
r1b2rk1/2q1bppp/p1n1pn2/1pPpN3/5P2/PP1BP3/1BP3PP/RN1Q1RK1 b - - 0 11 | Bxc5 | Is the d-file open, semi-open, or closed? | semi-open for White | files |
r3k2r/ppq2p2/3p1np1/4p3/2B1P3/3P1Q2/PPP2PP1/2R2RK1 b kq - 2 14 | Ke7 | Identify any Black knight outposts on the board. | None | outposts |
2r1r1k1/2n1np2/p6p/2R1Np2/6P1/1P6/P4P1B/3R2K1 w - - 1 30 | Nd7 | Does White have any passed pawns? | No | structure |
r2q1rk1/3bnppp/p2p4/1p1N4/4PP1b/4R3/PPB3P1/R1BQ2K1 w - - 7 22 | Rd3 | Is the e-file open, semi-open, or closed? | semi-open for Black | files |
1k1r3r/pp1q1pp1/8/2ppPn2/5P1p/1QP5/PP4PP/4RRNK w - - 0 19 | Nh3 | What piece is on g4? | Empty | occupancy |
6k1/p1p1p2p/2q2pp1/2r1n3/1QP5/P2P1PPN/4P1KP/7R w - - 0 22 | d4 | Identify any White knight outposts on the board. | c4 | outposts |
rnbqk2r/ppp2ppp/3bpn2/3p4/3P1B2/4PN2/PPPN1PPP/R2QKB1R b KQkq - 2 5 | Bxf4 | What piece is on c3? | Empty | occupancy |
r2q1rk1/1p3pp1/p1np1b1p/3bp3/P3P3/1B3N2/1PP2PPP/R2Q1RK1 w - - 0 14 | Bxd5 | What piece is on f1? | White Rook | occupancy |
8/7p/1pnk2p1/5p2/2P1KP1P/5P2/8/8 w - - 0 37 | f7f5 | Is the White king in check? | Yes | check |
r4k2/3q1pp1/3p1b2/p2P4/5Pp1/1PP4r/1P6/R2K1BQR b - - 6 28 | Qf5 | Identify any White knight outposts on the board. | a4, d4 | outposts |
rnbqkb1r/ppp1pppp/8/3nN3/3P4/8/PPP2PPP/RNBQKB1R b KQkq - 0 5 | g6 | Are there any open files in this position? | No | files |
rn1qk2r/pb2bppp/1p2p3/2p5/3P4/P1PBPN2/5PPP/R1BQK2R w KQkq - 0 11 | O-O | Identify any Black knight outposts on the board. | a5 | outposts |
r1bq2k1/pp5p/1N1p1n2/P4pB1/2pr4/1Q6/1P4PP/R4RK1 w - - 0 25 | Qc3 | Does White have any passed pawns? | No | structure |
2k5/Rb1q1p2/6r1/3p4/1pp5/4B1P1/1P3PBP/R5K1 b - - 2 26 | Re6 | Does White have any passed pawns? | Yes: h2 | structure |
r3k2r/2q2p2/2Pb1pp1/1Q2p3/8/2P5/PP3PPP/R1B1K2R b KQkq - 0 20 | c4b5 | Identify any White knight outposts on the board. | b4 | outposts |
8/r1q3kp/1K2P1p1/1p6/8/7P/8/8 w - - 4 43 | c2c7 | Is the White king in check? | Yes | check |
8/8/2k1p1p1/b4p1p/p1pP1P1P/1pP2PP1/1P1K4/2B5 w - - 0 53 | Kd1 | What piece is on a1? | Empty | occupancy |
r4b1r/ppqBk1pp/2p1Q3/8/1P2p3/2B5/P1P2P2/3RK3 b - - 0 26 | Kd8 | Does Black have any isolated pawns? | Yes: e4 | structure |
rn1qk2r/pbpp1pp1/1p2pn1p/8/1bP3P1/P1N2N2/1PQPPP1P/R1B1KBR1 b Qkq - 0 7 | Be7 | Are there any open files in this position? | No | files |
r2qr1k1/2p1bppp/p2p1n2/np6/4PP2/2N4P/PPB3P1/R1BQR1K1 b - - 0 15 | b4 | Is the move from e7 to a8 legal? | No | legality |
8/8/2p1B3/p1rp2p1/1k6/1PbRPP1P/3K4/8 w - - 10 51 | Kc2 | What piece is on d2? | White King | occupancy |
3QRbk1/pb1nR1rp/1np3pB/q2p4/1p1P2P1/2N4P/PPP2P2/2K5 w - - 0 25 | Rxg7+ | What is the material balance in this position? | Equal | material |
6k1/5ppp/8/2n5/4N3/1r3P2/3B2PP/6K1 w - - 0 32 | Nxc5 | What piece is on b1? | Empty | occupancy |
5k2/4p3/B7/7n/1P1b1r2/2B4P/P4P1P/5K2 w - - 0 42 | Be1 | Identify any White knight outposts on the board. | a5, c5, g4 | outposts |
r1bq1rk1/3nbppp/pppp1n2/4p3/P1BPP3/1PN2N2/2P2PPP/R1BQR1K1 w - - 0 10 | Bd3 | What is the material balance in this position? | Equal | material |
1r2n2k/2nbq1pp/p2p1p2/P1pPpP2/2P1P1PP/1rB3N1/R2QBK2/6R1 w - - 0 41 | Bd1 | Identify any Black knight outposts on the board. | None | outposts |
rnbqkb1r/pp3ppp/2p1pn2/3P4/3P4/2N1P3/PP3PPP/R1BQKBNR b KQkq - 0 5 | c4d5 | What is the material balance in this position? | White is up 1 pawn of material | material |
8/3R1k1p/4p1p1/2P2p2/4nP2/1P3K1P/8/2N5 b - - 0 41 | d1d7 | Is the Black king in check? | Yes | check |
5r2/4kp1p/p3p1b1/3p2P1/8/1N6/PKP1R1P1/8 b - - 0 31 | Kd6 | Is the move from f7 to f7 legal? | No | legality |
3br1k1/1pq3p1/2rppnNp/p3p2P/2P5/1P6/PB1RQPP1/5RK1 b - - 1 30 | Nd7 | What piece is on d4? | Empty | occupancy |
r4r2/p1p1bpk1/1p2p2p/3b4/3p4/2P2N1Q/PP4PP/R5K1 w - - 0 21 | Nxd4 | What piece is on g1? | White King | occupancy |
8/5p1k/2R4p/1P2Q1pq/4p3/P7/1B3P2/6K1 b - - 6 42 | Qd1+ | Is the move from f7 to f1 legal? | No | legality |
r1bq1rk1/ppp2ppp/2nppn2/8/2PPP3/P1P2P2/6PP/R1BQKBNR b KQ - 0 8 | Qe8 | What piece is on g1? | White Knight | occupancy |
2k4r/1bp1b1q1/4p3/1P2Pn2/3p4/P4pB1/2P2P1P/R3R1QK b - - 0 29 | Nxg3+ | Does White have any passed pawns? | Yes: a3, h2 | structure |
8/3b4/K2k1P2/1P2p1p1/4P1P1/8/8/8 b - - 5 97 | Ke6 | What is the material balance in this position? | Black is up 1 pawn of material | material |
8/8/4b2p/6p1/1p3kP1/1P3P2/2K1B3/8 b - - 0 37 | Bd5 | Identify any White knight outposts on the board. | e4 | outposts |
8/8/2p2p1P/3p4/3P1R1K/3kP3/5P2/6r1 w - - 9 77 | Kh5 | Identify any Black knight outposts on the board. | b5 | outposts |
r1bq1bk1/pp4r1/2n1p2p/3pP1p1/6Q1/P1PB1N2/2P2P1P/R1B1R2K w - - 1 22 | Qh5 | What piece is on f8? | Black Bishop | occupancy |
4k2r/1bqnbppp/p2ppn2/6B1/2p1PP2/1NQ5/P1P3PP/1K1RRB2 b k - 1 17 | Nxe4 | Is the d-file open, semi-open, or closed? | semi-open for White | files |
1rbqr1k1/5pp1/1pp1nn1p/p7/3PP3/PNNB4/1P1Q2PP/4RR1K b - - 0 21 | Nxd4 | What is the material balance in this position? | Equal | material |
1b2k3/1P1n1pp1/4p2p/R2pP3/2pP1P1B/8/6PP/6K1 b - - 2 38 | g3h4 | What is the material balance in this position? | White is up 2 pawns of material | material |
r6r/bpp1qpk1/2np1n1p/p3pQ2/P1B1P2B/2PP4/1P3PPP/R3R1K1 b - - 0 18 | Nb8 | What is the material balance in this position? | Black is up 2 pawns of material | material |
8/1r4p1/4k2p/8/2KPN3/4P2P/q7/8 w - - 1 49 | a1a2 | Is the White king in check? | Yes | check |
rnq1k1nr/pp2bppp/8/1N1R1N2/8/8/PP3PPP/R2Q2K1 b kq - 4 16 | Kf8 | What piece is on b7? | Black Pawn | occupancy |
8/7R/p2kn1p1/P3Pb2/1rp5/4K1P1/4N3/5R2 b - - 0 48 | Kxe5 | What is the material balance in this position? | White is up 2 pawns of material | material |
4r3/1N6/2R2n2/1B1pk1p1/1P1p4/5P2/r5P1/6K1 w - - 2 37 | Nc5 | Identify any White knight outposts on the board. | a5, g4 | outposts |
r1bqkbnr/pp3ppp/2n5/2pp4/3P4/5N2/PPPN1PPP/R1BQKB1R w KQkq - 2 6 | Bb5 | What piece is on h7? | Black Pawn | occupancy |
7k/2p2p1p/p4q2/2b1p3/Pp6/1B2R3/1PP2PK1/R7 b - - 0 27 | Bxe3 | Is the move from h8 to g3 legal? | No | legality |
8/3k3p/2p2pp1/ppr5/8/P1P1KP2/5P1P/3R4 b - - 1 27 | g1d1 | Is the White king in check? | No | check |
4R3/p4ppk/1p5p/8/8/N1n3P1/Pr3P1P/5K2 w - - 0 28 | e2c3 | What is the material balance in this position? | Black is up 1 pawn of material | material |
rnb1kbnr/ppp2ppp/8/8/3Bp3/2N5/PPP2PPP/R3KBNR b KQkq - 0 6 | Nc6 | Is the e-file open, semi-open, or closed? | semi-open for White | files |
r1b1kb1r/ppqn1ppp/2p1pn2/6P1/2B5/2NP1PN1/PPPBQ2P/R3K2R b KQkq - 0 12 | Ng8 | Identify any Black knight outposts on the board. | None | outposts |
6Q1/5k1K/5P2/8/8/8/8/8 b - - 0 67 | g7g8q | Is the Black king in check? | Yes | check |
2r3k1/1p3pp1/3p1b1p/p2P4/q3R3/5N2/1P3PPP/4R1K1 w - - 0 7 | Rxa4 | Does Black have any isolated pawns? | Yes: d6 | structure |
r2q1rk1/ppp2ppp/3p4/1B2p3/3PP1b1/2P2N2/P1P2P2/R2Q1RK1 b - - 0 14 | f5 | Does Black have any passed pawns? | Yes: h7 | structure |
2b2rk1/5ppp/p1p2q2/4p3/1Q6/5B2/PP3PPP/3R2K1 w - - 2 25 | Qc5 | What is the material balance in this position? | Black is up 1 pawn of material | material |
2rqk2r/pp1bbp1p/2n1pp2/8/Q1ppN2B/5N2/PP3PPP/1K1R1B1R b k - 3 13 | b5 | Is the e-file open, semi-open, or closed? | semi-open for White | files |
3q2k1/4Rp1p/6p1/N2rp3/1P6/1Qr5/5PPP/R5K1 w - - 0 31 | Re8+ | Is the move from a5 to c4 legal? | Yes | legality |
2r1nbk1/1p3r2/3p2n1/3Pp3/4Pppq/BQ6/P3B1PP/1R1N1RK1 b - - 1 25 | Rh7 | Is the move from g6 to g8 legal? | No | legality |
r4rk1/ppQb1pp1/5q1p/3P4/4p3/2P2P2/P3P1PP/R3KB1R w KQ - 0 16 | Rc1 | Is the White king in check? | No | check |
r1bqk2r/1pp1np2/p1nb3p/6p1/4P3/2N1BNP1/PPPQ2BP/R4RK1 b kq - 3 13 | Be6 | Does Black have any passed pawns? | No | structure |
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