fen stringlengths 28 76 | move stringlengths 2 7 | question stringlengths 20 48 | answer stringlengths 2 34 | task_type stringclasses 7
values |
|---|---|---|---|---|
r1bqk2r/1p2bp2/p2ppn1p/4n1P1/3NP2B/2NB4/PPP1Q1PP/R3K2R b KQkq - 2 12 | Nh7 | Does White have any isolated pawns? | Yes: e4 | structure |
rnb1kb1r/ppp4p/5pp1/4p3/4P3/2P1B3/PP1N1PPP/R2K1B1R b kq - 1 9 | Be6 | Does White have any passed pawns? | No | structure |
r4rk1/2pnqppp/1b2b3/p3p3/PpB1P3/1N5P/1PP1QPP1/R1B1R1K1 w - - 2 18 | Bd2 | What piece is on g1? | White King | occupancy |
2b3r1/3k1q2/r3pB2/pQ1pP1p1/2p5/b1P3N1/PR3PPP/1R4K1 b - - 13 35 | Rc6 | Are there any open files in this position? | Yes: b | files |
r2qr1k1/1bp1bpp1/p1np1n1p/1p2p3/3PP3/PBP2N1P/1P3PP1/RNBQR1K1 w - - 0 14 | Ba2 | What piece is on f2? | White Pawn | occupancy |
r5k1/4q1pp/p7/3bpQP1/1p1B3P/8/PPP5/2K2R2 w - - 0 26 | Bxe5 | Identify any Black knight outposts on the board. | f4 | outposts |
r3r1k1/1bpnbpp1/pp1p1q1p/4p3/2NPP3/2P2N2/PPB1QPPP/1K1R3R w - - 5 14 | d5 | What is the material balance in this position? | Equal | material |
8/pp1k2Qp/1p2b2B/4P3/3P4/PqP4P/1P5K/8 b - - 7 32 | g2g7 | Is the White king in check? | No | check |
r3k2r/pbpPq1bp/1p1n2p1/8/2B1P1Q1/2N5/PPP2PPP/R1B1K2R b KQkq - 0 13 | e6d7 | Is the Black king in check? | Yes | check |
8/p1pq1pk1/3p1n2/2pP2p1/8/1P3B2/P1P2PP1/4Q1K1 b - - 0 27 | g4 | Is the move from g5 to d6 legal? | No | legality |
3Q4/1K6/1PP5/4p3/4k3/8/1r6/1r6 w - - 1 72 | c7 | Does White have any passed pawns? | Yes: b6, c6 | structure |
8/1Q4pk/p4pbp/P1Bp1q2/1P6/5PPB/4PK1P/8 b - - 0 40 | Qxh3 | Is the Black king in check? | No | check |
r1b1k2r/pp2ppbp/3p2p1/2p5/4PP2/3n2PP/PQ1BN1B1/R4KNR b kq - 1 14 | Bxb2 | Does White have any isolated pawns? | Yes: a2 | structure |
r1bqr1k1/1p4bp/p4pp1/2pP2B1/4N3/8/PP1Q1PPP/R3R1K1 w - - 0 20 | Bxf6 | Is the move from e1 to d1 legal? | Yes | legality |
1nb1r1k1/1p3p2/r2N3p/p3P1p1/P1B3q1/6Pn/QPP2PKP/3RR3 b - - 2 22 | Nf4+ | What piece is on f2? | White Pawn | occupancy |
r4rk1/1pqnppbp/p2p2p1/2pP4/2P1P3/1PNQ3P/P2B1PP1/R4RK1 w - - 1 16 | f4 | Is the move from f2 to e4 legal? | No | legality |
1r1qkb1r/3b1pp1/p2ppn1p/8/N3P1P1/QN2Bn2/PPP4P/2KR1B1R w k - 0 15 | h3 | Are there any open files in this position? | No | files |
8/8/2p5/p1P4p/P4Nk1/4K2P/8/8 b - - 0 35 | h2h3 | Is the Black king in check? | Yes | check |
rn2kbnr/ppp1pppp/8/q4b2/2PP4/5P2/PP2B1PP/RNBQK1NR w KQkq - 1 7 | e5a5 | Is the White king in check? | Yes | check |
1r6/2r1qk1p/6p1/1Bp2P2/4pQ2/2P5/1P3P1P/3R2K1 w - - 1 36 | Bc4+ | Does Black have any isolated pawns? | Yes: c5, e4 | structure |
r1bq1b1r/ppN2kpp/2np1n2/3Np3/2B1P3/5Q2/PPP2pPP/R3K2R w KQ - 0 13 | Qxf2 | Are there any open files in this position? | No | files |
2rn1rk1/pp3ppp/4p1n1/2p5/3P1P2/2PBP1R1/P2BKP1P/R7 w - - 0 18 | Rag1 | Is the g-file open, semi-open, or closed? | semi-open for White | files |
3r2k1/6p1/4p3/2p1Pp1p/2P5/4PpPP/5P2/R5K1 w - - 0 34 | g4 | Identify any White knight outposts on the board. | None | outposts |
r1b1kb1r/1p1n1ppp/p2ppn2/6B1/2BNP3/q1N5/P1PQ1PPP/1R3RK1 w kq - 0 11 | Bxe6 | Identify any Black knight outposts on the board. | c5 | outposts |
r3k1nr/pp3ppb/2q1p3/2bpP2N/6PP/2N2Q2/PPP2P2/R1B1K2R b KQkq - 1 13 | Kf8 | Is the c-file open, semi-open, or closed? | semi-open for Black | files |
8/2p1k3/2P5/3P4/4K3/8/8/8 w - - 4 3 | Ke5 | What piece is on c5? | Empty | occupancy |
r2q1rk1/3b1ppp/p2p4/1p1R4/4PP2/4B1b1/PPB3P1/R2Q2K1 b - - 2 24 | Be6 | What is the material balance in this position? | Black is up 1 pawn of material | material |
r1bqr1k1/ppn3b1/2p2pp1/5P1p/2PPp1N1/1P2N3/PB4PP/R2Q1R1K w - - 0 20 | Nf2 | What piece is on e6? | Empty | occupancy |
r4rk1/pp3ppp/5b2/2p5/5P2/2Q2B2/PP5P/R4KBq b - - 4 21 | e2f3 | What is the material balance in this position? | Black is up 4 pawns of material | material |
rn3knr/ppp5/3p1b2/6N1/3P2p1/2NQ2P1/PPP2P1q/R3RK2 w - - 2 19 | Qg6 | Is the e-file open, semi-open, or closed? | open | files |
1r1q1bk1/1r1b2p1/n2p1pNp/p1pPp1nP/P1P1P3/2B2NR1/2B1QPP1/R5K1 b - - 0 31 | Rb4 | What piece is on b1? | Empty | occupancy |
2n5/3k4/8/2K2p1p/PP3P1P/6P1/8/8 w - - 1 67 | a5 | Does Black have any isolated pawns? | Yes: f5, h5 | structure |
1k1r4/pp1r1bpp/2p5/2P1P3/1R1P1p2/P4PqP/1PQ2RB1/K7 w - - 1 33 | Re2 | Is the move from b4 to e1 legal? | No | legality |
r3k1nr/p5pp/2p2p2/3pP3/3P2bN/2q3P1/PP6/R1B1K2R w KQkq - 0 16 | a5c3 | Is the White king in check? | Yes | check |
1r3k2/p1rqn1p1/Ppn1p2p/1B1pPp2/1P1P1P2/2R2N2/2R3PP/2Q3K1 b - - 13 26 | Rbc8 | Is the c-file open, semi-open, or closed? | open | files |
rnb4r/2Nnb1pp/p2p4/q3k1P1/1p2PN2/1B2B3/PPP2P1P/R3K2R w KQ - 1 19 | Ne2 | What is the material balance in this position? | Black is up 7 pawns of material | material |
5rk1/Np4b1/1r6/3R4/8/8/6PP/4R1K1 b - - 0 39 | Rb2 | Are there any open files in this position? | Yes: a, c, d, e, f | files |
r4rk1/pq1n1ppp/3Np3/8/Q7/4P3/1P3PPP/2R2RK1 b - - 2 21 | Nb6 | Is the b-file open, semi-open, or closed? | semi-open for Black | files |
r6r/1N5p/p4n2/1p4k1/3n4/1BN5/PPP2PPP/2K1R3 w - - 1 22 | Nd6 | What is the material balance in this position? | White is up 1 pawn of material | material |
2kr3r/1pqbbp2/p2ppn1p/4n3/4PB2/1BN2N2/PPPQ2PP/4RR1K b - - 4 17 | Rhg8 | Identify any Black knight outposts on the board. | e5 | outposts |
4k2r/p3npbp/2p1b1p1/4p1B1/4P3/N7/PP2BPPP/R2r2K1 w k - 0 16 | Bxd1 | Is the b-file open, semi-open, or closed? | semi-open for Black | files |
r1bq3r/1p2kB2/p2p2pp/8/3pP3/N2P2bP/PPP1QRPn/R1B3K1 w - - 3 19 | Bd5 | Does Black have any isolated pawns? | Yes: d4, d6 | structure |
1r2nq1k/1rnb2pp/p2p1p2/P1pPpP2/2P1P1PP/2B3N1/R1BQ1K2/6R1 w - - 4 43 | g5 | Is the b-file open, semi-open, or closed? | open | files |
6k1/3r2p1/7p/p1p1R1b1/5nP1/1PP4P/P2N1r2/R1BK4 b - - 2 31 | Nd3 | Does Black have any isolated pawns? | Yes: a5, c5 | structure |
r7/6Rk/8/1P1PpNpP/4P1P1/p4P2/1P6/6K1 b - - 0 39 | f7g7 | Is the White king in check? | No | check |
3r4/2p1k2p/p7/1p2P3/3n2B1/8/P4PPP/5RK1 w - - 0 25 | Rc1 | Does White have any passed pawns? | Yes: e5, f2 | structure |
r4k1r/pp3ppp/1np2qb1/2bP4/5B2/1BN3P1/PP3P1P/R2QR1K1 b - - 6 16 | h5 | Identify any Black knight outposts on the board. | d5 | outposts |
2kr3r/1p6/p3p1Rp/3qnp1Q/3P4/P1B5/1P4PP/3R2K1 w - - 5 29 | Rf6 | Is the move from d1 to b7 legal? | No | legality |
r5k1/2R2p1p/4QnpB/3p1p2/3P4/2P4P/5PP1/6K1 b - - 0 30 | fxe6 | Does Black have any isolated pawns? | Yes: d5 | structure |
5k2/1pp2p2/3p3p/1p1Pb2n/1P4p1/2P3B1/rP3PPP/1R2K1N1 w - - 1 27 | Bxe5 | Identify any White knight outposts on the board. | None | outposts |
8/bR6/6k1/7p/5P2/3qP1P1/4NK2/8 w - - 2 82 | Rxa7 | Does White have any passed pawns? | Yes: e3, f4 | structure |
5r2/pp1qn2k/4b1pp/3p1r2/2P2P2/4Q1PP/PP2N1BK/3R1R2 b - - 2 25 | e5e3 | What is the material balance in this position? | White is up 1 pawn of material | material |
3r4/1kp5/1p3N2/pP5Q/q2P4/2P2R2/4r3/5R1K w - - 0 43 | Rh3 | Does White have any passed pawns? | No | structure |
rnb1qrk1/pppp1pp1/1b1P2Q1/4P1B1/2B5/8/PP3PPP/RN3RK1 w - - 1 15 | Bf6 | Does Black have any isolated pawns? | No | structure |
5k2/1p2b3/p1p1r2p/P4p2/1P2N3/2P1R2P/5P1K/8 w - - 0 38 | Ng3 | Does White have any isolated pawns? | Yes: f2, h3 | structure |
5rk1/pp3ppp/2P1b3/4PpB1/8/2q2N2/5PPP/R2R2K1 w Q - 1 4 | cxb7 | What piece is on f2? | White Pawn | occupancy |
2rq1rk1/p4pbp/1p2p1p1/3bB2n/8/2N3Q1/PPP2PPP/R2R2K1 w - - 6 18 | f6h5 | What is the material balance in this position? | Black is up 3 pawns of material | material |
r2qr1k1/n1pb1pp1/pp1b3p/3p4/PP1Pn3/3BPN1P/2QBNPP1/R4RK1 b - - 2 18 | Nc6 | Identify any Black knight outposts on the board. | None | outposts |
r2r4/5p1p/p3nk2/1ppR1P2/8/1PP1B3/1P5P/R4K2 w - - 3 30 | Rad1 | Identify any Black knight outposts on the board. | None | outposts |
3k4/2p2p2/1p5p/p1p1P1p1/P1Pn2P1/1P3P1P/1B3K2/8 w - - 1 30 | Bxd4 | Are there any open files in this position? | Yes: d | files |
r1bq1rk1/bp3ppp/p1pp1nn1/8/PPBNP3/2P4P/3N1PP1/R1BQR1K1 b - - 0 13 | d5 | Is the d-file open, semi-open, or closed? | semi-open for White | files |
6k1/pr3pp1/4pn1p/2R1n3/3N4/4P1P1/PrRN1PKP/8 b - - 2 26 | Nd3 | Is the move from e5 to f6 legal? | No | legality |
r1b1kb1r/2q2p1p/p1nppp2/1p6/4PP2/1NN5/PPP1B1PP/R2QK2R w KQkq - 0 11 | O-O | Is the c-file open, semi-open, or closed? | semi-open for Black | files |
4rr1k/pp3ppp/2n3q1/2p1P3/3p1Q1B/2P4P/PPbR1PP1/4RBK1 w - - 8 22 | f3 | Does Black have any isolated pawns? | No | structure |
8/5p2/3N2k1/2b1pnp1/6Pp/7P/5P2/5K2 w - - 0 48 | gxf5+ | Identify any Black knight outposts on the board. | d4 | outposts |
q1r3k1/5p2/1p2p1p1/1BpbP2p/P3nP2/4P2P/1BQ3PK/3R4 w - - 0 34 | Bc1 | What piece is on e8? | Empty | occupancy |
2Q5/1Q6/5Q2/8/3P1k2/8/3KP1B1/1R4N1 b - - 2 68 | a6f6 | Is the Black king in check? | Yes | check |
r2q1rk1/pp2n1b1/4P1pp/3pp3/1P6/4B3/P1B2PPP/R2QR1K1 b - - 1 19 | e4 | Identify any White knight outposts on the board. | None | outposts |
r2qk2r/pp1Bpp1p/3p1np1/2p5/3bP3/P1NP1P2/1PP3PP/R1BQK2R b KQkq - 0 10 | b5d7 | Is the White king in check? | No | check |
rq3rk1/p2n1p1p/3b1np1/1Np5/NpQ1b3/4B1P1/PP2BP1P/R2R2K1 b - - 1 19 | Ne5 | Are there any open files in this position? | Yes: d, e | files |
7k/1p4pP/2n1p3/p4r2/2Rp4/BP3nQ1/P2q1P1P/2R4K b - - 1 33 | Qxa2 | Does Black have any isolated pawns? | Yes: g7 | structure |
8/2R3p1/5k1p/p4p2/5P2/1P5P/r5PK/8 w - - 10 43 | Rc6+ | What piece is on h2? | White King | occupancy |
rnbqkb1r/p5pp/4pn2/1Ppp4/8/5NP1/PP2PP1P/RNBQKB1R b KQkq - 0 7 | Nbd7 | Does Black have any isolated pawns? | Yes: a7 | structure |
rn1q1rk1/pp2ppbp/6p1/5N2/8/2NnPPP1/PP2Q1BP/R1B2K1R b - - 2 14 | gxf5 | Does Black have any isolated pawns? | No | structure |
r1bqnrk1/ppppbppp/8/4R3/8/2NB4/PPPP1PPP/R1BQ2K1 w - - 5 10 | Nd5 | Identify any White knight outposts on the board. | None | outposts |
5r2/5pk1/p5p1/6P1/2P3N1/5Pb1/PP5p/1K5R b - - 3 37 | Re8 | Does Black have any passed pawns? | Yes: h2 | structure |
r1r3k1/1nqbbppp/3p1n2/1ppPp3/1P2P3/2P1BN1P/2BQ1PP1/R3RNK1 w - - 7 20 | Bd3 | Is the Black king in check? | No | check |
1q1r1r1k/1p3pp1/5n1p/1BP2N2/3P4/4BN2/5PPP/RR4K1 w - - 2 25 | Bc6 | Does Black have any isolated pawns? | Yes: b7 | structure |
r2q1rk1/pp3pbp/2pp1np1/3Pp3/1nP1P3/P1N2P2/1P3P1P/R1BQRBK1 b - - 0 12 | Na6 | What piece is on a8? | Black Rook | occupancy |
5bk1/6p1/p1b1q2p/P2pB3/1p1P4/6QP/1PB3P1/6K1 b - - 16 38 | Bb5 | Identify any Black knight outposts on the board. | None | outposts |
q5k1/4b1p1/r1r1p1Qp/2ppP3/Pp2PN2/7P/5PP1/1R1R2K1 b - - 0 27 | d4 | Are there any open files in this position? | No | files |
7k/8/5PKP/6P1/8/8/8/8 b - - 0 51 | f5f6 | What is the material balance in this position? | White is up 3 pawns of material | material |
6k1/2Q2p1p/4rn2/3qN1p1/8/2P2N1P/P1r2PP1/R4RK1 b - - 1 24 | c4e5 | What is the material balance in this position? | White is up 5 pawns of material | material |
3b1r2/3R1pk1/1p6/p4K2/6P1/1P1B4/P7/8 b - - 7 38 | Re8 | What is the material balance in this position? | Equal | material |
1r4k1/pr2bppp/1pq5/2p1PP2/P1Pp1B2/3Q2P1/4P2P/RR4K1 w - - 8 26 | Kf2 | Does Black have any isolated pawns? | No | structure |
r1bqr1k1/ppp2pp1/2p4p/4n3/4P3/2P1B2P/PP1N1PP1/R2Q1RK1 b - - 0 13 | Be6 | Is the e-file open, semi-open, or closed? | semi-open for Black | files |
r2qrbk1/1bp2ppp/p4n2/1p1Pp1N1/2P5/PQ1P2NP/1P3PP1/R1B1R1K1 b - - 0 17 | c6 | Are there any open files in this position? | No | files |
8/5pK1/2PRbB2/5k1p/8/5PP1/2r5/8 w - - 2 78 | Rd4 | What is the material balance in this position? | White is up 1 pawn of material | material |
5rk1/1b1q1pp1/2np1b1p/1ppBp3/4P3/2PP1N1P/1P1N1PP1/Q4RK1 w - - 1 18 | Re1 | Identify any White knight outposts on the board. | None | outposts |
3qkb2/1p3p2/p2Pp2p/4B3/2r5/Pp2R3/2bQ1PP1/R5K1 b - - 1 26 | Bxd6 | Is the c-file open, semi-open, or closed? | open | files |
q4rk1/pbrnbp1p/6p1/2pp4/4P3/1PBB1N2/P1Q2PPP/2RR2K1 w - - 1 18 | e5 | Are there any open files in this position? | No | files |
2bqk2r/1p2npbp/3p2p1/2P1p3/1pQ1P3/5N2/2PP1PPP/BN2R1K1 b k - 1 13 | Qa5 | What piece is on h8? | Black Rook | occupancy |
r1bq1rk1/1pp2pb1/3p1n2/p1nPp1Bp/2P1P2P/2N3N1/PP3PP1/R2QK2R w KQ - 0 12 | Nxh5 | What piece is on c3? | White Knight | occupancy |
2kr3r/pp3pPp/8/3pp3/3b2R1/1P6/1PP2P1P/R1B2K2 b - - 0 19 | Rhg8 | What piece is on b7? | Black Pawn | occupancy |
rnb1kb1r/pp2pppp/5n2/2pq4/3P4/2P2N2/PP3PPP/RNBQKB1R b KQkq - 2 5 | Bg4 | What piece is on g5? | Empty | occupancy |
r7/3n2bk/2qpbp1p/1p2p2Q/1P2P1PP/2PBB3/8/1N3R1K b - - 0 36 | Kg8 | Does White have any isolated pawns? | Yes: e4 | structure |
2r2r1k/1b2bpp1/1qp1pN1p/pp2P3/1n1P4/4N1P1/1P2QPBP/R2R2K1 w - - 4 22 | Qh5 | Does Black have any isolated pawns? | No | structure |
8/2P1n3/p2K4/P2pP3/1P6/8/6k1/5q2 b - - 1 52 | Qf8 | Identify any Black knight outposts on the board. | e4 | outposts |
5N2/2p5/2n3k1/p3p3/Pp1pP3/1P1P4/2P2K2/8 b - - 6 40 | h7f8 | Is the Black king in check? | Yes | check |
r2r2k1/pbq3bp/1pn1p1p1/4Pp2/2pP1PP1/2P1B2P/P1B1NQ2/2R2RK1 b - - 0 19 | Ne7 | Is the move from c7 to e7 legal? | Yes | legality |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.