fen stringlengths 28 76 | move stringlengths 2 7 | question stringlengths 20 48 | answer stringlengths 2 34 | task_type stringclasses 7
values |
|---|---|---|---|---|
2kr3r/1pq1np2/1np1b3/p3P1p1/P2P2Pp/1P1N1P1P/2Q1B1K1/2R2N1R w - - 1 29 | Qc3 | Are there any open files in this position? | No | files |
3r4/pkp2pR1/1p2p3/4P1N1/3p1P2/1q1P2P1/1Pn1K3/5Q2 w - - 0 29 | Nxf7 | Identify any White knight outposts on the board. | h4 | outposts |
6k1/6pp/3pr3/2p5/5p2/2P5/PP1B1PPP/6K1 w - - 0 28 | Kf1 | What piece is on f7? | Empty | occupancy |
1r1r2k1/4bppp/ppq5/2p1PP2/P1Pp1B2/6P1/2Q1P2P/1R1R2K1 b - - 3 24 | Rb7 | Identify any Black knight outposts on the board. | a5, c3, c5, e3 | outposts |
2b5/8/KP1k1P2/4p1p1/4P3/8/8/8 w - - 1 99 | b7 | What is the material balance in this position? | Black is up 2 pawns of material | material |
r1bq1rk1/1n3pbp/1n1p2p1/pp1Pp3/2p1P1N1/2P3NP/PPB2PP1/R1BQR1K1 b - - 1 19 | Qh4 | What piece is on a3? | Empty | occupancy |
r1b1k2r/p1q1bppp/2p2n2/2P1p3/3pP3/1N1B3P/PP3PP1/R1BQ1RK1 w kq - 1 13 | f4 | Is the Black king in check? | No | check |
5k2/5p1p/B2r1np1/P2p4/b4P2/4P3/N4P1P/R1r3K1 w - - 0 33 | Nxc1 | Does Black have any passed pawns? | No | structure |
7r/1p4k1/p1bR1r2/2P2p1p/5P2/3B4/PP4P1/3KR3 b - - 0 30 | h4 | What piece is on f1? | Empty | occupancy |
8/4b3/p3k3/2p3pp/2PpP3/5K1P/P4NP1/8 w - - 44 97 | Nd3 | Is the d-file open, semi-open, or closed? | semi-open for White | files |
8/8/p1p1R3/6KP/6P1/2k3r1/P1P1p3/8 b - - 1 46 | Kd2 | Is the Black king in check? | No | check |
r7/pQ6/1p6/k2p1P2/P2q1B2/8/1PP4P/7K w - - 1 36 | Qxa8 | Is the move from b7 to e7 legal? | Yes | legality |
r5kr/pbppR2p/1p1n3B/3P1p2/4n2N/2P5/P4PPP/4R1K1 w - - 2 20 | f3 | What piece is on h3? | Empty | occupancy |
3k1bnr/pp1npBpp/8/8/8/8/PP2KPPP/RNr3NR w - - 4 15 | Kd2 | Does Black have any isolated pawns? | Yes: e7 | structure |
r3nrk1/p6p/1p1pp3/2p1b1p1/2P1P2q/3QBP1P/PP1RN1P1/R5K1 b - - 0 19 | g4 | Is the White king in check? | No | check |
5rk1/2rq3p/6b1/3p1pN1/p1p2Pn1/P1P1PBQ1/1P3P2/2KR3R b - - 5 32 | Nf6 | Is the move from c7 to c8 legal? | Yes | legality |
5rk1/6p1/Rbq4p/1p1pRp1Q/2pn1P1P/1P4P1/5PK1/3B4 w - - 1 32 | bxc4 | Is the White king in check? | No | check |
1rn1qr1k/3b2b1/B5pp/P1QPpp2/3nP1PB/4N2P/3N1P2/R3K2R w KQ - 0 29 | O-O | Identify any White knight outposts on the board. | b6, c6, e6 | outposts |
8/8/1pk1pp2/pNb4p/P3KP2/1P4PP/8/8 b - - 0 41 | f5+ | Identify any Black knight outposts on the board. | d5 | outposts |
8/7p/1k6/2R5/1P2N2P/2P1KPP1/r7/7r b - - 2 42 | Re1+ | Identify any White knight outposts on the board. | a5, b4, c5, d4, e4, f4, h4 | outposts |
1n6/p1p5/1p2N3/2k5/8/2P5/PP6/2K5 b - - 2 36 | d4e6 | Is the White king in check? | No | check |
r1b1kbnr/2qp1ppp/p1p5/4p3/4PP2/2NB4/PPP3PP/R1BQ1RK1 b kq - 1 9 | d6 | Does Black have any isolated pawns? | Yes: a6 | structure |
r1bqkb1r/pp2pppp/2np1n2/8/2BNP3/2N5/PPP2PPP/R1BQK2R b KQkq - 1 6 | e6 | What piece is on d5? | Empty | occupancy |
r3k1r1/1p3p2/p3p3/n2pPn2/5PP1/P1N4P/2P5/R1B1KR2 b Qq - 0 19 | Nd4 | What is the material balance in this position? | White is up 1 pawn of material | material |
r2r2k1/2q1bppp/2bppn2/pp4B1/3QP3/2N2R1P/PPP2PPN/4R1K1 b - - 1 15 | b4 | Identify any Black knight outposts on the board. | None | outposts |
r6Q/1pkb3p/p2pp2b/8/2qNP3/2N1B3/PPP3PP/R5K1 w - - 1 18 | Nxe6+ | What is the material balance in this position? | White is up 4 pawns of material | material |
r4rk1/1b1n1ppp/p2pq3/1p1N4/4P3/P4Q2/1PP4P/1K1R1B1R w - - 4 19 | Bh3 | Is the White king in check? | No | check |
r1bqkbnr/pp2pppp/2np4/2p5/4PP2/5N2/PPPP2PP/RNBQKB1R w KQkq - 0 4 | h3 | Does White have any passed pawns? | No | structure |
r3k1nr/pppq1ppp/8/2b5/3pP3/1PP5/PB4PP/RN1QK2R w KQkq - 0 12 | e5d4 | What is the material balance in this position? | Black is up 1 pawn of material | material |
2K5/2P4r/1k1R4/1p6/8/8/8/8 b - - 8 86 | Ka7 | Does White have any isolated pawns? | Yes: c7 | structure |
2r5/1pqn1p1k/3pbb1P/p3p3/2r1P3/1NN2P2/PPP3Q1/2K3RR w - - 0 23 | Qg7+ | What is the material balance in this position? | Black is up 2 pawns of material | material |
1k2r3/1P4pp/K3b3/p3Pp2/8/2P1B3/PP4PP/q4B1R w - - 0 23 | Bb5 | Is the f-file open, semi-open, or closed? | semi-open for White | files |
r1b1kn1r/2q2pb1/p5p1/2Ppp2n/Pp2P2p/4BP2/1P1QBNPP/R4RK1 w kq - 0 18 | exd5 | What is the material balance in this position? | Black is up 3 pawns of material | material |
r1br2k1/pp3ppp/2n5/2qpP3/3N1P2/P1PB4/3Q2PP/R3K2R b KQ - 1 17 | Re8 | Identify any Black knight outposts on the board. | c4 | outposts |
4r1k1/p1R3P1/1p3K2/3p1p2/P2P4/8/8/8 w - - 1 43 | Kxf5 | Are there any open files in this position? | Yes: c, e, h | files |
r1bq1rk1/ppp2ppp/2nbpn2/8/2BP4/2N1PN2/PP3PPP/R1BQ1RK1 w - - 1 9 | Bb5 | Is the c-file open, semi-open, or closed? | semi-open for White | files |
8/p6k/8/8/3r4/4qK2/8/8 w - - 12 70 | e5e3 | Is the White king in check? | Yes | check |
4R3/2q4k/p2p2pP/2nP4/1p2n2Q/7b/PPP4P/2K5 b - - 1 31 | g5 | Is the move from c7 to e7 legal? | Yes | legality |
r3qrk1/2p2ppp/p1Nnpb2/1p6/3P1P2/2P2Q2/PP4PP/R1B2RK1 b - - 1 18 | a5 | Are there any open files in this position? | No | files |
3r1rk1/5pp1/4p2p/p3P3/1b1PB1qP/2p3P1/2Q2P2/R4RK1 w - - 3 30 | a8d8 | What is the material balance in this position? | Black is up 1 pawn of material | material |
rnbqkb1r/p1p1pppp/5n2/1p6/2pPP3/2N5/PP3PPP/R1BQKBNR w KQkq - 0 5 | Nxb5 | Is the move from d1 to c7 legal? | No | legality |
rn6/pp3Bpk/2p4p/4R3/8/5P1b/P7/2K4r w - - 1 26 | h2h1 | Is the White king in check? | Yes | check |
r5k1/3q1pb1/1pRp2p1/1r1Pp2p/1p5P/1N1Q1P2/PP4P1/K6R b - - 3 23 | Qa7 | What piece is on b1? | Empty | occupancy |
r2q1rk1/pp2n1b1/2ppPn1p/4ppp1/1PP1P3/2N1BB2/P4PPP/R2QR1K1 w - - 0 16 | exf5 | What is the material balance in this position? | Equal | material |
3r1rk1/p2pbppp/1p6/n1pq4/8/2P1PN2/PP1RBPPP/2KR4 w - - 0 16 | Rxd5 | What piece is on f7? | Black Pawn | occupancy |
2k3rr/p4q2/1pn1pP1p/3p1npP/b1pP2R1/P1P2N2/2P1BPPB/R2QK3 b Q - 0 20 | Qxh5 | Are there any open files in this position? | No | files |
r1b1k2r/1pq2ppp/p2ppn2/2b5/3QPB2/2N3P1/PPP2PBP/R3R1K1 w kq - 0 12 | Qd2 | Is the move from c2 to e2 legal? | No | legality |
1r3rk1/4bppp/q2p4/P1nQp3/2P5/R3BP2/4B1PP/5RK1 w - - 2 2 | f4 | Does White have any passed pawns? | Yes: a5 | structure |
3k4/1pp2pp1/1b3r1p/1B1P2N1/pP6/6Pb/P4n1P/R3R1K1 w - - 2 31 | Re8# | Is the move from b5 to c3 legal? | No | legality |
2Q5/6pk/5p1p/1b2pP2/1p2P3/1P4P1/2K4P/q2N4 b - - 12 42 | Qd4 | Does White have any passed pawns? | No | structure |
2kr3r/1p6/p1n1p3/3nB3/5PP1/3BqQKP/2R5/R7 w - - 7 42 | Bxh8 | Does White have any passed pawns? | Yes: g4, h3 | structure |
4B2k/6p1/1n5p/5Q2/1pp2P2/7P/1r4P1/7K w - - 0 40 | Bg6 | Is the c-file open, semi-open, or closed? | semi-open for White | files |
3n4/5pkp/2pb2p1/3p3P/3P1N2/r3PBP1/5PK1/1R6 b - - 0 73 | Kf6 | Is the Black king in check? | No | check |
r3r1k1/1pq2ppp/p4n2/8/P1p1PbP1/2Pb1P2/QB1N3P/2KR2NR b - - 2 24 | b5 | Is the Black king in check? | No | check |
4N3/3r3p/2kpb1pP/4p1P1/p1p1P3/P3K3/1PP2R2/8 b - - 27 71 | Rb7 | Are there any open files in this position? | Yes: f | files |
7k/1pp4p/3p1nr1/3P3R/1PP5/6b1/3Q3P/3N2K1 b - - 0 4 | Be1+ | Identify any Black knight outposts on the board. | None | outposts |
rnbqkb1r/1p2pppp/p2p1n2/8/2BNP3/2N5/PPP2PPP/R1BQK2R b KQkq - 1 6 | e6 | Is the c-file open, semi-open, or closed? | semi-open for Black | files |
rn3bkr/pp2p1pp/5n2/qBN3N1/1pP3b1/8/P2P1PPP/R1BQK2R w KQ - 5 14 | Be8 | Are there any open files in this position? | No | files |
rnbqk1nr/pppp1ppp/4p3/8/4P3/5N2/PPPPQbPP/RNB1KB1R w KQkq - 0 4 | Qxf2 | What piece is on h5? | Empty | occupancy |
r1q3k1/Np1r1bpp/8/2bP1p2/Qn2pN1B/4P2P/5PP1/2RR2K1 b - - 0 27 | Qe8 | Does Black have any isolated pawns? | Yes: b7 | structure |
8/8/5k2/R7/3K4/8/8/8 w - - 28 15 | Ke4 | What is the material balance in this position? | White is up 5 pawns of material | material |
8/2p1k1pp/8/pPbBp3/P1Q1PP2/1KPn1q2/R6r/R7 b - - 5 32 | Rxa2 | What piece is on h2? | Black Rook | occupancy |
5Br1/6P1/8/3k1p2/2p5/1pK5/p7/7R w - - 1 66 | Kb2 | Does White have any passed pawns? | Yes: g7 | structure |
3r4/1bb2kp1/p1p1ppnp/1pP1P2R/1P3PN1/P1B2BP1/2K3P1/8 b - - 0 29 | fxe5 | Does Black have any isolated pawns? | No | structure |
r6k/1p2qrbp/p5p1/4p3/4p3/4B2P/PP3PP1/R2Q1RK1 w - - 0 23 | Qc2 | Is the Black king in check? | No | check |
rnb4r/pp3Npp/1kp2n2/8/1bB2B2/8/PK3PPP/3R2NR b - - 0 13 | Re8 | Identify any White knight outposts on the board. | None | outposts |
5r2/1p1Np1k1/2ppB3/p1P3p1/8/1P3pP1/P3R3/5K2 b - - 0 42 | fxe2+ | What piece is on h5? | Empty | occupancy |
r1r3k1/1p1n2pp/3Bpp2/n7/2PP4/p6P/P4P2/K1R2BR1 w - - 3 29 | Rg3 | Are there any open files in this position? | No | files |
r1b2rk1/pp3ppp/2n1p3/1Np1n1q1/8/3P3P/PP2QPP1/R4RK1 b - - 1 14 | c3b5 | What is the material balance in this position? | Black is up 7 pawns of material | material |
8/5k2/8/ppr2p1p/1p3P2/1P1P2P1/P1P1R3/6K1 w - - 0 33 | Kf2 | Is the move from g3 to c5 legal? | No | legality |
3bk3/ppp2pp1/2p3r1/3bPnNp/4NB2/1P4PP/P1P2P2/4R1K1 w - - 1 19 | c4 | Are there any open files in this position? | Yes: d | files |
2kr1r2/ppp3p1/2n1b3/4q1Pp/4N2b/2P1pP1N/PPQ1P1BP/R5KR b - - 0 18 | Kb8 | What is the material balance in this position? | White is up 1 pawn of material | material |
r2q1rk1/2p1bppp/p1n1bn2/1p1pp3/4P3/2PP1N1P/PPB1QPP1/RNBR2K1 b - - 3 11 | d4 | Are there any open files in this position? | No | files |
r3k1r1/1bqn1p2/3b1Bp1/1Bpp2P1/8/1P2PN2/P1Q2K2/R6R w q - 2 22 | Rh7 | Is the Black king in check? | No | check |
bn4k1/p4pp1/7p/8/8/4P1P1/PP3P1P/3K1B1R b - - 0 22 | Bxh1 | Is the move from g7 to g6 legal? | Yes | legality |
5r1r/ppq1k1p1/4p2p/2N5/1P3P2/2nP1BP1/7P/R1B2RK1 w - - 2 23 | Re1 | Are there any open files in this position? | Yes: c | files |
7r/pp1kppbp/2q2np1/1N2B3/2r4P/1N3P2/PPP1Q1P1/2K4R w - - 2 21 | Rd1+ | What is the material balance in this position? | Black is up 2 pawns of material | material |
2rr2k1/1bb1qppp/p3pn2/1p6/1P2PP2/P1NB4/1B2Q1PP/R4RK1 w - - 1 19 | e5 | Are there any open files in this position? | Yes: c, d | files |
1k6/1qp4p/6p1/pp3rP1/KP5P/3P4/P7/5n2 w - - 0 45 | b6b5 | Is the White king in check? | Yes | check |
5r1k/2r4p/1R4p1/3Bp1q1/P1P2p1R/3n2P1/8/5NQK w - - 2 44 | Rh2 | Identify any White knight outposts on the board. | b5 | outposts |
r1k5/1n1q2r1/p2pQ3/1p4P1/4P3/2N1B2P/PPP5/2KR4 w - - 1 33 | Qf6 | Identify any Black knight outposts on the board. | e5 | outposts |
rnbq1rk1/ppp2pbp/3p2p1/3PP3/3P4/5N1P/PP3PP1/R1BQKB1R b KQ - 0 9 | c4d5 | What is the material balance in this position? | White is up 1 pawn of material | material |
4k2r/1p1b1ppp/4P3/3pP3/1P1N1bPP/p1q5/Pn3BB1/1Q3RK1 b k - 0 27 | fxe6 | Identify any White knight outposts on the board. | d6 | outposts |
2r5/3pkp1p/3rp1p1/8/PR5P/4P3/1P3PP1/R5K1 b - - 0 23 | Rc2 | Does Black have any passed pawns? | No | structure |
2b1q2k/6b1/3p1r1p/2p2P1p/1p2N2P/1P1PB2Q/r1P2R2/2R3K1 b - - 2 32 | Rg6+ | What piece is on f5? | White Pawn | occupancy |
2r1k2r/pp1b1p1p/2n1pp2/8/1bB1P3/P1N2N2/1P3PPP/2R2RK1 b k - 0 13 | Bd6 | Is the Black king in check? | No | check |
k7/pp1r1p2/2p2b2/2R5/P2Pp3/4P2r/1P3P2/1KR1N3 w - - 0 31 | Rf5 | Is the Black king in check? | No | check |
4rrk1/2p3pp/p3bq2/1p1pn3/8/2P2N2/PPB3PP/R1BQ1NK1 w - - 4 17 | Ne3 | Is the move from f3 to a4 legal? | No | legality |
r1bbk2r/pp1nn1pp/2p5/4P2B/4Q3/8/PPP2PP1/RNB1K2R b KQkq - 2 12 | e2h5 | Is the Black king in check? | Yes | check |
6k1/8/1K3p2/6P1/P7/2P1P3/r6p/1R6 b - - 0 44 | fxg5 | Is the move from a2 to f4 legal? | No | legality |
r1bqkbnr/ppppnppp/8/3Pp3/4P3/8/PPP2PPP/RNBQKBNR w KQkq - 1 4 | Nf3 | What piece is on a1? | White Rook | occupancy |
r6k/pp2q2p/3p2pb/PN1Pp3/1PN1Prb1/3Q4/6PP/2R1R1K1 w - - 2 24 | Rf1 | Does Black have any isolated pawns? | No | structure |
5r2/pp3r1p/8/2p5/4Q3/2k5/P1R2PPP/5K2 b - - 3 29 | e2c2 | Is the Black king in check? | Yes | check |
5rk1/p1p3p1/Prnqpn1p/1p2p3/1P1PP3/2QP1N1P/2PN2P1/RR4K1 b - - 0 18 | Nxd4 | Is the move from g8 to a8 legal? | No | legality |
rnbqk2r/2p2ppp/p3pn2/1P6/1bBP4/4PN2/1P1B1PPP/RN1QK2R b KQkq - 2 8 | c1d2 | Identify any White knight outposts on the board. | a6, c5, c6 | outposts |
8/5b2/1R6/5K1k/2p5/1p4Pn/1B6/8 b - - 4 86 | Nf2 | Identify any White knight outposts on the board. | f4, h4 | outposts |
6R1/pp2r3/5k1p/6p1/6P1/1P3K2/P7/8 b - - 3 49 | Rh7 | Identify any Black knight outposts on the board. | g5 | outposts |
8/1P3R2/8/5p2/4p1k1/8/1r6/5K2 w - - 8 74 | f4g4 | What is the material balance in this position? | Black is up 1 pawn of material | material |
r1bqk2r/pp1pbppp/2n1pn2/8/3PP3/2N2N2/PP3PPP/R1BQKB1R w KQkq - 4 7 | d5 | Identify any White knight outposts on the board. | None | outposts |
r4rk1/2qnppb1/p2p2p1/6P1/NpnNPP2/4B3/PPP1Q3/1R2K2R b K - 1 20 | e5 | What is the material balance in this position? | Equal | material |
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