fen stringlengths 28 76 | move stringlengths 2 7 | question stringlengths 20 48 | answer stringlengths 2 34 | task_type stringclasses 7
values |
|---|---|---|---|---|
r1q1rnk1/pbp2pbp/1p1p1np1/8/2PP4/2N2B1P/PP1N1PPB/R2Q1RK1 w - - 3 14 | Qc2 | Is the move from g1 to h1 legal? | Yes | legality |
r1bq1rk1/5pb1/P2p2p1/3Pp3/R3Pn1p/4BP2/4B1PP/3Q1RKN b - - 0 20 | Bh6 | Identify any White knight outposts on the board. | None | outposts |
rnb1k1nr/pp2ppbp/2p3p1/3p4/3PP3/q1NBBP2/P1PQ2PP/1R2K1NR b Kkq - 3 8 | dxe4 | What is the material balance in this position? | Black is up 1 pawn of material | material |
r2qk2r/ppp2ppp/2n5/3bp3/1b3P2/2NP4/PPP1N1PP/R1BQ1RK1 b kq - 0 9 | f6 | What is the material balance in this position? | Equal | material |
6r1/1p2p2k/5pbb/pP1Pq1p1/P1rNP3/2p2PNP/2Q3K1/3R1R2 w - - 2 34 | Ndf5 | What piece is on b7? | Black Pawn | occupancy |
2k5/pp3pb1/6p1/4p2r/5P1p/P1P1N2P/1P4P1/3K1R2 b - - 0 27 | Bh6 | Identify any White knight outposts on the board. | None | outposts |
4k3/pR4pp/6r1/4nb2/N7/P3B2P/1P3PPK/8 b - - 2 28 | Rxg2+ | Are there any open files in this position? | Yes: c, d, e | files |
rnb1kbnr/pp2pppp/8/2pq4/3P4/2P5/PP3PPP/RNBQKBNR b KQkq - 0 4 | cxd4 | What piece is on h8? | Black Rook | occupancy |
r1bq1rk1/ppp2ppp/2n1pn2/8/2pP4/5NP1/PP1BPPBP/R2Q1RK1 w - - 0 9 | e3 | What piece is on f4? | Empty | occupancy |
r2q1rk1/pb1n1ppp/1p1bpn2/2pp4/2PP4/1P1BPN2/PB1N1PPP/R2Q1RK1 w - - 0 10 | cxd5 | What is the material balance in this position? | Equal | material |
2kr1b1r/pB3p2/5P2/1qp1n1B1/Npp5/P5P1/1P3P1P/R2Q1RK1 b - - 0 19 | Qxb7 | Is the move from c8 to b7 legal? | Yes | legality |
r4r1k/p1n2ppp/4b3/2ppP3/7Q/q1PB4/P3N1PP/1R3R1K b - - 4 22 | h6 | Is the move from c7 to c6 legal? | No | legality |
3r4/p5kp/1p2B1nr/2P2p2/6pq/PQ5P/1P1N1PP1/3R2K1 w - - 1 26 | c6 | What piece is on e6? | White Bishop | occupancy |
r3r1k1/4Pp2/2b2P1p/2p1R3/8/8/BP3PPP/1K6 w - - 0 24 | Re3 | What is the material balance in this position? | Black is up 2 pawns of material | material |
r2r4/4kppp/1pb5/P1p1p3/P1P1P3/3BKP2/6PP/R1R5 b - - 1 25 | bxa5 | What is the material balance in this position? | White is up 1 pawn of material | material |
r3r1k1/3q1pp1/7p/p2P4/1p1QPn2/8/1P1RBN1P/6KR w - - 0 37 | Kf1 | Is the Black king in check? | No | check |
rn1q1rk1/pp3p1p/1n4p1/3PP3/1bBQ4/2N1BP2/PP5P/R3K1R1 b Q - 1 15 | N8d7 | Is the move from d8 to d5 legal? | Yes | legality |
r1bq1rk1/1pp2p1p/p1n3pB/8/8/2NBb3/PPP3PP/R4RK1 w - - 0 18 | d4e3 | Is the White king in check? | Yes | check |
r1bq1rk1/ppp1bppp/2n1pn2/8/2pP4/P1N2NP1/1P2PPBP/R1BQ1RK1 w - - 1 9 | e4 | What piece is on c7? | Black Pawn | occupancy |
r4rk1/5pp1/p7/1p2q1p1/8/1P6/P4PPP/R3R1K1 w - - 0 24 | Rxe5 | Identify any White knight outposts on the board. | None | outposts |
1r4k1/p2b1ppp/5r2/n2BN3/P1pP4/R1P1P2P/6Pq/Q2R1K2 w - - 5 30 | g6f6 | Is the White king in check? | Yes | check |
r2q1rk1/2pb1ppp/2n2n2/p1b1p3/4P3/NQPP1N2/PP4PP/R1B1KB1R b KQ - 3 11 | Qe7 | Is the move from c5 to e7 legal? | Yes | legality |
r4rn1/1p3Nk1/1p2P1pp/n1qpP1N1/2p5/P7/3Q2PP/4RR1K w - - 12 32 | Rf6 | Does White have any passed pawns? | Yes: e5, e6 | structure |
r1b2b1r/p1q1kp1p/2pnpN2/1p4P1/1B3P2/1P1P4/1PP1Q2P/R3K2R w KQ - 3 21 | Qe5 | What piece is on b7? | Empty | occupancy |
8/8/6p1/6n1/2N1P1P1/4k1P1/7K/8 b - - 2 64 | Kxe4 | Does White have any passed pawns? | Yes: e4 | structure |
r1b1k3/p3q2r/1p1p3p/n1pP1pp1/2P5/2PBPNQ1/P2K1PP1/R6R b q - 1 18 | f4 | Is the e-file open, semi-open, or closed? | semi-open for Black | files |
6r1/2qkb2Q/bn2p3/p1ppn2p/6r1/1PP3P1/P1BNN2P/R1B1R1K1 b - - 0 24 | Qb8 | What is the material balance in this position? | Equal | material |
rnbqkbnr/ppp2ppp/3p4/4p3/2PP4/8/PP2PPPP/RNBQKBNR w KQkq - 0 3 | dxe5 | Does Black have any passed pawns? | No | structure |
r1b1k2r/ppp1nppp/4p3/3q4/3PnB1P/P4N2/2Q1PPP1/R3KB1R w KQkq - 0 12 | e3 | What is the material balance in this position? | Black is up 1 pawn of material | material |
r1b2rk1/6bp/p2p2p1/1p1P4/4B3/N4P2/PP1K2PP/1R5R b - - 0 19 | Bf5 | Is the White king in check? | No | check |
5rk1/pb3ppp/1p2pn2/3qN1B1/2rP4/P1P3R1/5PPP/R2Q2K1 b - - 3 18 | Rxc3 | Are there any open files in this position? | No | files |
8/2p5/8/3k3R/4ppp1/6r1/5K2/8 b - - 1 48 | h6h5 | Is the White king in check? | No | check |
r2b1rk1/1p3p1p/p5p1/3P1N1q/P1PQ1R2/1P6/2P4P/R6K b - - 0 24 | gxf5 | Is the move from h5 to g4 legal? | Yes | legality |
r1b1kbB1/pp1n3p/2p5/8/4PQ2/2N4q/PP1P3P/R1B4K b q - 0 19 | f2f4 | What is the material balance in this position? | White is up 1 pawn of material | material |
5r2/4ppkp/1r1p2p1/p2P4/1n2P3/5NPq/1P3P2/R2QR1K1 w - - 0 23 | Qd4+ | Is the b-file open, semi-open, or closed? | semi-open for Black | files |
r4rk1/pp1b2bp/1qn1pP1p/3p4/3P4/5N2/PPNQBPPP/R4RK1 b - - 0 13 | Rxf6 | Does White have any passed pawns? | Yes: f6 | structure |
4kb1r/3b1pp1/pqnppn1p/8/4P1P1/QN3P2/PPP4P/2KR1B1R w k - 0 17 | Qxa6 | Are there any open files in this position? | No | files |
r3r1k1/ppp2ppp/3p1n2/4qb2/2P2R2/2P1P1P1/P1QP2BP/2R3K1 w - - 0 17 | Rxf5 | Identify any White knight outposts on the board. | None | outposts |
4k2r/2p2ppp/p1p5/1p2n3/4PB2/3r2K1/PP4PP/R2N3R w k - 2 17 | d8d3 | Is the White king in check? | Yes | check |
8/5k2/p7/4P1P1/4K3/8/8/5r2 w - - 2 54 | f3f1 | What is the material balance in this position? | Black is up 4 pawns of material | material |
rbr5/1q3p2/pPp1pBpk/P1QpP2p/7P/6P1/1R3P2/2R3K1 w - - 4 43 | Rb4 | Does White have any passed pawns? | Yes: b6 | structure |
3r2k1/8/p7/1p3r1p/1P1p2pP/6P1/P2Q2PK/8 w - - 0 40 | Qh6 | Is the move from d2 to c3 legal? | Yes | legality |
r1b1k2r/pp3p2/2n4p/3p2p1/8/qR2P1B1/P2Q1PPP/4KB1R b Kkq - 0 17 | Qa5 | Is the move from a8 to d3 legal? | No | legality |
r4rk1/pb3pbp/1pn1p1p1/2pq4/8/P2P1NP1/1P1BPPBP/1R1Q1RK1 w - - 0 13 | Bc3 | Is the White king in check? | No | check |
rn2k2r/pp6/2p1bq2/3p1p1R/3P1b2/3BPQ2/PPP2PP1/R3K3 w Qkq - 0 15 | exf4 | What is the material balance in this position? | Black is up 4 pawns of material | material |
3r2k1/1p1r1pp1/p6p/2P1p3/1P2Q1P1/P1qP1PbP/R3KN2/7R w - - 1 32 | Qc4 | Does White have any passed pawns? | No | structure |
8/7q/2p5/4p3/2PpP1P1/1knP4/3Q2K1/5B2 w - - 6 47 | Qe1 | Identify any White knight outposts on the board. | h5 | outposts |
2r2r1k/p3q2p/1pnp1b2/2pBp3/1PN1Ppb1/PQPP1N2/1R4PP/5RK1 b - - 3 23 | Nd8 | Does Black have any isolated pawns? | Yes: h7 | structure |
rnbqkbnr/p4ppp/1p2p3/1Bpp4/3P4/P1P1P3/1P3PPP/RNBQK1NR b KQkq - 1 5 | f1b5 | Is the Black king in check? | Yes | check |
8/8/R5kp/P5p1/8/4np1P/6r1/7K b - - 1 38 | a7a6 | What is the material balance in this position? | Black is up 4 pawns of material | material |
r4rk1/pp1qbpp1/4p1p1/2Pn4/3P3P/1Q3BP1/P4P2/1RB2RK1 w - - 1 21 | Qxb7 | Identify any Black knight outposts on the board. | None | outposts |
rnbq1rk1/pp2p1bp/2pp2p1/5p2/2PP4/2Q2NP1/PP2PPBP/R1B1R1K1 b - - 0 10 | e5 | Is the d-file open, semi-open, or closed? | closed | files |
2r2rk1/4bppp/2n1p3/pq1P4/2pP1N2/P5P1/1PQ2P1P/2RR2K1 w - - 0 26 | dxc6 | Identify any White knight outposts on the board. | c5, c6 | outposts |
r2q1b1k/5p1p/3n1n2/3Pp3/1pb5/pP4N1/P1PQ3P/1KNR1B1R b - - 0 24 | Nfe4 | Is the move from c4 to b5 legal? | Yes | legality |
r2qkbnr/1p1bpppp/p2p4/8/3QP3/5N2/PPP2PPP/RNB1K2R w KQkq - 0 7 | Bg5 | What is the material balance in this position? | Equal | material |
r4r1k/5p1p/pq1p1Pp1/2p3Q1/B1n1P3/1p5P/PP4P1/1R3R1K w - - 0 30 | axb3 | What is the material balance in this position? | Black is up 1 pawn of material | material |
r1bqr1k1/ppp3pp/2n5/5p2/2pPn3/2P2NP1/P1Q1P1BP/1RB2RK1 w - - 0 14 | g4 | Does White have any isolated pawns? | Yes: a2 | structure |
8/5pk1/2R3p1/3p3p/8/2P2K2/1r2N1PP/8 w - - 0 31 | h7h5 | What is the material balance in this position? | White is up 2 pawns of material | material |
r1b2b1r/1p1n2pp/p3kn2/q3p1B1/5P2/2N5/P1PQ2PP/1R3R1K w - - 0 16 | Bxf6 | Identify any White knight outposts on the board. | e5 | outposts |
4r2k/p6p/1pPp1r2/2pP1Pp1/4P3/P1P5/3K2P1/1R5R w - - 2 30 | Kd3 | What piece is on h8? | Black King | occupancy |
2rr2k1/6p1/p3b2p/1pbNp1qP/1P1np3/4N3/P2QBPP1/2R2RK1 b - - 1 28 | Rxd5 | Does White have any passed pawns? | No | structure |
r3k2r/1pp1bpp1/p1pqbn1p/4p3/P3P3/N2P4/1PPN1PPP/R1BQ1RK1 b kq - 1 10 | Qd8 | Is the d-file open, semi-open, or closed? | semi-open for Black | files |
r1r3k1/qb4p1/3p1pPp/2n1NP2/ppP1P2P/8/PP2QbB1/1KRR1N2 b - - 0 29 | a3 | Identify any White knight outposts on the board. | b5, d5 | outposts |
4R3/4rpk1/5Np1/6P1/8/P7/3K4/1n6 w - - 0 6 | Kc1 | Is the White king in check? | Yes | check |
r4r1k/1bq2ppB/p2bp2p/1p1n2NQ/8/1P6/PBP2PPP/R3R1K1 b - - 3 19 | e5 | Identify any White knight outposts on the board. | None | outposts |
r1bqkb1r/1p2pp1p/p2pnPp1/8/4P3/2N1B2P/PPP2P2/R2QKB1R b KQkq - 0 10 | exf6 | Identify any Black knight outposts on the board. | h5 | outposts |
1br5/pR6/1p6/1P6/P2Pk1p1/6P1/5B2/5K2 b - - 0 47 | Rg8 | Identify any White knight outposts on the board. | e5 | outposts |
rnbk1b1r/pppp2q1/5p2/4pNp1/2B5/2P3Q1/PPP3PP/R1B1K2R b KQ - 1 12 | Qh7 | What is the material balance in this position? | Black is up 1 pawn of material | material |
r2qk2r/ppp2pp1/8/2bpP1P1/6P1/1B1p3p/PPPP2P1/RNBQ1R1K w kq - 0 15 | g3 | Identify any White knight outposts on the board. | None | outposts |
rnbqkb1r/1pp2pp1/p4n1p/3p4/3P1B2/P1N1P3/1P3PPP/R2QKBNR b KQkq - 0 7 | c5 | What is the material balance in this position? | Equal | material |
1r4k1/R3R1p1/5p2/7p/8/K3P3/6r1/8 b - - 5 35 | f7e7 | Identify any Black knight outposts on the board. | e5, g4, g5 | outposts |
r1bqk2r/pppnbppp/2n1p3/3pP1B1/3P3P/2N2N2/PPP2PP1/R2QKB1R b KQkq - 2 7 | Nb6 | What piece is on g7? | Black Pawn | occupancy |
r1b1k2r/1p1pnpp1/p1n3q1/4p1Bp/4P2P/2N5/PPP2PP1/R2QKB1R b KQkq - 1 11 | d5 | What piece is on b6? | Empty | occupancy |
2r1r2Q/p1pbkp2/1p1qpp2/8/3P4/3B4/PPP2PPP/R3R1K1 w - - 3 20 | Qh4 | Identify any White knight outposts on the board. | None | outposts |
r1b1kb1r/1q1n2R1/p3pP2/1p2p2p/8/2N5/PPP1Q2P/2KR1B2 w kq - 0 21 | Bg2 | Is the move from g7 to g8 legal? | Yes | legality |
r2q1rk1/pp3pp1/1np5/6bp/3P2P1/1BN1PQ2/PP1K4/R6R w - - 2 19 | Raf1 | Does White have any passed pawns? | No | structure |
r3qr2/1p2p1bk/2ppbn1p/p1Pn1pp1/N2P4/1P2P1P1/P1QN1PBP/2RRB1K1 b - - 1 20 | Qh5 | Does White have any isolated pawns? | No | structure |
1rb1r1k1/p1p1ppbp/4qnp1/N7/1p3P1P/2BPP3/PPQ2PB1/1K1R3R w - - 0 19 | Bd4 | What piece is on c5? | Empty | occupancy |
8/N6p/1p2k1p1/5p2/1Pr5/P5P1/5PKP/R7 w - - 1 41 | c2c4 | Identify any White knight outposts on the board. | b4 | outposts |
8/7r/p3k2P/1pb2p2/4p3/PPB4R/K1P1R3/3r4 b - - 2 44 | Rg1 | What piece is on a3? | White Pawn | occupancy |
rn2k2r/pp3pp1/4b3/q2p4/3Pp3/PP2b1P1/1B2P1BP/R2QNR1K b kq - 4 17 | Qc7 | Identify any White knight outposts on the board. | None | outposts |
5k2/1p1nr1bQ/p3pqBp/3p3P/2rP1p2/5N2/PP2RPP1/4R1K1 w - - 5 31 | a3 | Is the move from g1 to c5 legal? | No | legality |
5rk1/1p2brpn/p1np3p/4pq2/P1P5/1PN2N1P/1B3PP1/R2Q1RK1 w - - 4 22 | Nd5 | Is the move from c4 to c5 legal? | Yes | legality |
8/8/8/5K2/r7/6p1/8/2R2qk1 w - - 0 68 | f2f1q | Is the Black king in check? | No | check |
rnbqk2r/ppp1bppp/4pn2/3p2B1/3PP3/2N5/PPP2PPP/R2QKBNR w KQkq - 4 5 | e5 | Identify any Black knight outposts on the board. | None | outposts |
2br2r1/1pp2k2/p2p1b2/P3p1pp/1RN1Pp2/1PPP1P1P/4R1PN/6K1 b - - 0 32 | Rh8 | Identify any White knight outposts on the board. | None | outposts |
1k6/8/8/1PpQ4/2P1Pp1p/PK3PbP/6P1/4q3 w - - 5 62 | Ka4 | Is the move from c4 to h4 legal? | No | legality |
r1bq2k1/1p3rb1/1p3nn1/2pPp1pp/2N1Pp2/B1N2P2/4B1PP/R2Q1RK1 w - - 0 20 | Qb3 | Are there any open files in this position? | Yes: a | files |
r2qr1k1/pp1n1ppp/3b1n2/2p1p3/4P3/NP4P1/PB1PQPBP/R4RK1 w - - 6 15 | Nc4 | What piece is on a8? | Black Rook | occupancy |
1b3k2/1P1n1pp1/4p2p/R2pP3/2pP4/6B1/5PPP/6K1 w - - 2 37 | g8f8 | What is the material balance in this position? | White is up 2 pawns of material | material |
4q2k/4P1pp/p1b4P/4Q1P1/1p6/1P6/P1P5/2K5 b - - 2 33 | Qf7 | What piece is on b3? | White Pawn | occupancy |
r3k1nr/3p1p1p/p2B2p1/2p5/2P5/3P1QP1/1q3P1P/R3K2R b KQkq - 0 17 | d1f3 | What is the material balance in this position? | Black is up 1 pawn of material | material |
2r3k1/5pp1/q6p/8/1Q6/P3B2P/4nPP1/4R1K1 w - - 4 28 | c3e2 | Is the White king in check? | Yes | check |
8/1r3k2/1P1r1p1p/1R4pP/4K1P1/1R6/5P2/8 w - - 6 48 | Kf5 | Does Black have any passed pawns? | No | structure |
1r4k1/1p2Qpbp/p5p1/6N1/q4N2/P7/5PPP/1R1r2K1 w - - 5 24 | d8d1 | Is the Black king in check? | No | check |
4b2r/ppr1bk1p/4p2Q/2q2p2/6N1/4P3/P3B1PP/3R1RK1 w - - 2 25 | Bc4 | Is the move from h6 to g5 legal? | Yes | legality |
r6r/5k2/p1p1bp2/2Bp1n1p/R7/1PP5/3N1PPP/5RK1 w - - 0 21 | f3 | Does White have any isolated pawns? | No | structure |
r2r2k1/2q1bpp1/4bn1p/npp1p3/4P3/2P1NN1P/1PB1QPP1/R1B1R1K1 w - - 0 19 | Qxb5 | Is the White king in check? | No | check |
rnbqk2r/pp3ppp/2p2P2/2bp4/2B2p2/2NP4/PPP3PP/R1BQK1NR b KQkq - 0 7 | dxc4 | Is the move from a7 to c7 legal? | No | legality |
r1b1kbnr/1p4pp/3p4/2p1p3/1PP1Pp2/p2P1P2/P5PP/KNB2BNR b kq - 0 15 | b2a1 | What is the material balance in this position? | Black is up 2 pawns of material | material |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.