fen stringlengths 28 76 | move stringlengths 2 7 | question stringlengths 20 48 | answer stringlengths 2 34 | task_type stringclasses 7
values |
|---|---|---|---|---|
7k/4n1bp/2p1b1p1/4pp2/1P2P3/r1N2P2/P2rB1PP/RR1N2K1 w - - 3 24 | b5 | Identify any White knight outposts on the board. | a5, c5 | outposts |
rnb2rk1/pp2qppp/5n2/4p3/2Pp4/3Q2P1/PP2PPBP/RNB2RK1 w - - 0 11 | b4 | Is the Black king in check? | No | check |
2rqkb1r/1p3p1p/p2pbp2/3Np3/3nP3/2NB4/PPP2PPP/R2QK2R w KQk - 0 13 | a4 | What piece is on e8? | Black King | occupancy |
r4rk1/pb1pqppp/1p6/n1p5/2P1n3/PP1QP1N1/1B3PPP/R3KB1R b KQ - 6 15 | f5 | Does White have any passed pawns? | No | structure |
4b1k1/2q4p/3p1Qpb/3Pp3/N3P2P/1r6/4B1P1/5R1K w - - 1 47 | Nc5 | Identify any Black knight outposts on the board. | None | outposts |
rnbqk2r/ppp2ppp/4p3/8/1b1P4/P1P5/2Q1PPPP/R1B1KBNR b KQkq - 0 7 | Ba5 | Is the move from h8 to a2 legal? | No | legality |
r1bq1b1r/pppnpk1p/6p1/3n3Q/3P4/8/PPP2PPP/RNB1KB1R w KQ - 0 8 | Qxd5+ | Are there any open files in this position? | No | files |
r2q2kr/ppp1n2p/1b1p2n1/1P5N/P1P1P3/3B1Q2/5PPP/R3K2R w KQ - 3 17 | c5 | Does Black have any passed pawns? | No | structure |
1rb2rk1/1pq2pnp/p2p1npQ/2pPp1N1/2P1P3/7P/PP2BPP1/2R1K2R w K - 0 18 | g4 | Is the d-file open, semi-open, or closed? | closed | files |
2r2k2/8/2qPpn1Q/5rp1/2p2P2/P4RRP/1PP5/7K b - - 0 30 | Kf7 | Is the White king in check? | No | check |
2r2k1r/pp3p2/1q5p/2NbP3/1P1P2pB/P2Q4/3N3P/R4RK1 w - - 1 28 | a8c8 | What is the material balance in this position? | White is up 6 pawns of material | material |
r4k2/3n3r/p2PB1Q1/2q1pP1p/Pp5P/5P2/1pP5/1K1R3R w - - 3 29 | Qg8# | Are there any open files in this position? | Yes: g | files |
r6r/p3k1pp/b4p2/4p3/1n3P2/1B6/PPP3PP/2KRR3 b - - 2 16 | c4b3 | What is the material balance in this position? | Black is up 2 pawns of material | material |
r1bqkbnr/ppp2ppp/2n1p3/3p4/3PP3/5N2/PPPN1PPP/R1BQKB1R b KQkq - 3 4 | Nf6 | What is the material balance in this position? | Equal | material |
2kr1b1r/pppq2pp/2n1bp2/3p1p2/3P4/P2BPQ2/1PP1NPPP/RN2K2R w KQ - 1 9 | Nd2 | What is the material balance in this position? | Equal | material |
2r3k1/p5bp/1p2p1p1/2pn4/P3N3/4P3/1P1BKPPP/1R6 w - - 1 21 | b3 | What is the material balance in this position? | Equal | material |
2kr4/pp1n4/q3pp2/2pp4/3Pr3/2P1B2Q/PP1K1P1P/R6R b - - 0 22 | cxd4 | Is the White king in check? | No | check |
r2b2k1/1R4p1/p6p/1pB4P/1P3pn1/PN2P3/5P2/5K2 w - - 0 38 | e4 | Are there any open files in this position? | Yes: c, d | files |
r1b2rk1/2q2ppp/p2ppn2/1pb1nP2/3NP2Q/2NBBR1P/PPP3P1/R6K b - - 1 15 | Nxf3 | What is the material balance in this position? | Equal | material |
r7/1p2pk2/1r1p1p2/p2R1Np1/P1P1Pn1p/1PK2P1P/6P1/3R4 w - - 24 40 | R5d2 | Identify any White knight outposts on the board. | None | outposts |
8/8/6k1/8/5pKp/7P/6q1/8 w - - 0 54 | f1g2 | Is the White king in check? | Yes | check |
r1b1k2r/ppq2pp1/3p1n1p/1B1Pp1b1/1P2P3/P1N2N2/1B3PPP/Q3K2R b kq - 1 14 | f1b5 | Is the Black king in check? | Yes | check |
2br2k1/1p1qbp1p/r1n1n1p1/p2pP2P/2p5/2P1BNN1/PPB2PP1/R2QR1K1 b - - 2 17 | d4 | Identify any Black knight outposts on the board. | None | outposts |
3r4/pp1P2R1/8/3K1p2/8/P2P1kp1/8/8 w - - 2 20 | Ke5 | Identify any White knight outposts on the board. | None | outposts |
3r1rk1/ppn2p2/5BPQ/5p2/3P3p/4P2P/PP4B1/3q3K w - - 12 38 | Kh2 | Identify any White knight outposts on the board. | d4, f4 | outposts |
rn1qr1k1/pp3ppp/2p5/8/1b2nP2/1NN3Q1/PPPP2PP/R1BK3R w - - 3 14 | f6e4 | What is the material balance in this position? | White is up 1 pawn of material | material |
8/3k4/3P3R/4KP2/8/8/8/4r3 w - - 3 143 | Kf6 | What piece is on h6? | White Rook | occupancy |
1k1r3r/pbpq1p1p/1pn2npb/3pp3/1P2P3/P1PP1N2/1BQN1PPP/3RKB1R b - - 3 12 | Rhe8 | Is the move from d7 to h3 legal? | Yes | legality |
r3k2r/pp1qnpb1/2p1bnp1/4p1Bp/2pPP2P/2N2PP1/PP1QN1B1/3R1RK1 w kq - 0 15 | dxe5 | Identify any Black knight outposts on the board. | d3 | outposts |
rnbqk2r/pppp1ppp/5n2/2b1p3/2B1P3/3P1N2/PPP2PPP/RNBQK2R b KQkq - 2 4 | d6 | Are there any open files in this position? | No | files |
r1br4/pp6/2n5/4B3/2kPp2P/1qp5/4QPP1/3RK3 b - - 2 33 | Kb4 | Is the d-file open, semi-open, or closed? | semi-open for Black | files |
rnb1k2r/pppnqp1p/4p1p1/3pP3/3P1NQ1/2N5/PPP2PP1/R3KB1R b KQkq - 1 10 | a6 | Are there any open files in this position? | No | files |
r2qrbk1/1b3pp1/p2p3p/1p2p3/P1n1P3/2P4P/1PB2PP1/R1BQRNK1 w - - 1 20 | Ne3 | Is the move from e1 to c3 legal? | No | legality |
1R6/p4kpp/6r1/4n3/N3b3/P3BP1P/1P4PK/8 b - - 0 30 | Bc6 | Is the Black king in check? | No | check |
3r2k1/p4p1p/1n1P2p1/2r1PP2/8/1P3R2/P5PP/3R2K1 w - - 0 27 | e6 | Is the d-file open, semi-open, or closed? | semi-open for Black | files |
8/4b1n1/3p1pk1/2rPp2p/4P3/5Pp1/R1PN1K2/7R w - - 0 42 | h4g3 | Is the White king in check? | Yes | check |
8/6kP/6P1/p1r5/6K1/8/8/1R6 b - - 4 46 | Rc4+ | Identify any White knight outposts on the board. | None | outposts |
5b2/1p1q1pp1/p1n1r1k1/2p1Pp2/3PNK2/2P5/P3BP2/7R w - - 4 5 | Rh8 | Is the move from h1 to d1 legal? | Yes | legality |
r1br2k1/pp3p1p/1n4pB/q7/2pPQ3/2P2N2/P4PPP/R4RK1 w - - 3 17 | Qh4 | Is the d-file open, semi-open, or closed? | semi-open for Black | files |
3rr1k1/2p3bp/p5p1/2NPP3/3Pqp2/1P3P2/PB4PP/R4K2 w - - 0 25 | fxe4 | Identify any White knight outposts on the board. | a4, c4, c5, c6, e5, e6 | outposts |
1rb1qr2/3np2R/2pk1bP1/p7/3P2Q1/1P2PN2/P4PP1/1K1R4 w - - 7 25 | Qg3+ | Identify any White knight outposts on the board. | a4, c4, c5, e5 | outposts |
5rkb/3n2Nn/bp2pp1P/p2pP1p1/r2P2P1/2PN4/3B4/1BR1K2R b K - 1 29 | Ra1 | Does Black have any passed pawns? | Yes: a5 | structure |
2r1rbk1/5ppp/pqbpp3/5PP1/Pp2P2P/8/PBPQ2B1/1K1R3R w - - 1 22 | h5 | Does White have any isolated pawns? | Yes: a2, a4, c2 | structure |
1Q2k3/p1p5/8/4pp2/3q4/8/PPP2RPP/RNB3K1 b - - 0 18 | a8b8 | Is the Black king in check? | Yes | check |
5bk1/4pR1p/4P3/Rpr5/6K1/1P6/P7/8 b - - 2 53 | h5+ | What piece is on h3? | Empty | occupancy |
rn1qkb1r/pbp1pppp/1p3n2/3p2B1/3P4/4PN2/PPPN1PPP/R2QKB1R b KQkq - 0 5 | Ne4 | Identify any White knight outposts on the board. | None | outposts |
8/5kb1/3p1q2/p1p2p1p/PpP2P1P/1P2NbP1/3Q4/2B3K1 b - - 6 37 | Qd4 | Is the move from h5 to h2 legal? | No | legality |
8/8/p6p/1p4k1/8/PP4r1/2P2K2/4R3 b - - 0 44 | f1f2 | Identify any Black knight outposts on the board. | g5 | outposts |
8/8/R2k2p1/P4b2/r1p1n3/2R1K1P1/4N3/8 b - - 0 53 | Ke5 | Is the White king in check? | No | check |
r5kb/pp1qpr2/2n1b3/2pn2B1/P1Np2pP/1P1P2P1/2P3BN/R1Q1R1K1 w - - 2 24 | Nf1 | Are there any open files in this position? | Yes: f | files |
r3qk2/pbp2rbQ/1p4B1/3pP3/3P4/4B3/PPP4P/R6K w - - 7 25 | Bh6 | Does Black have any isolated pawns? | No | structure |
r1bq1rk1/1p1n1pb1/p2p1np1/3Pp2P/4P3/2N1BP2/PP1QN2P/R3KB1R b KQ - 0 12 | Nxh5 | Identify any Black knight outposts on the board. | h5 | outposts |
r1bq1rk1/pp1nppbp/3p1np1/3P4/2P1P3/R4N1P/1B1N1PP1/3QKB1R b K - 2 12 | Nc5 | What is the material balance in this position? | Black is up 1 pawn of material | material |
rnb1k1nr/ppp1ppbp/6p1/4P3/8/5N2/PPP2PPP/RNBqKB1R w KQkq - 0 6 | d8d1 | Is the White king in check? | Yes | check |
4r1k1/bpp3pp/6rq/p2P1p2/3Bn3/1P1BPNPb/P1Q4P/R3R1K1 w - - 0 23 | Bxa7 | What piece is on f4? | Empty | occupancy |
4Q1k1/5p1p/4p1p1/6b1/5P2/1P2n3/P1P3PP/2K4R b - - 1 30 | d7e8 | Is the White king in check? | No | check |
r2q1rk1/3n1pbp/b2pp3/2pP2Pp/4PP2/2N5/PPQ5/R1B1K1NR w KQ - 0 16 | Nge2 | Are there any open files in this position? | No | files |
5rk1/p1qbbppp/2p2R2/2p5/3pP2Q/8/PPPBB1PP/R5K1 w - - 1 19 | d6e7 | What is the material balance in this position? | White is up 4 pawns of material | material |
3q1rk1/5p1p/6p1/4n3/1p2nPbP/1P6/N1R1B1P1/1N2K1QR b K - 2 26 | Nd3+ | What piece is on f3? | Empty | occupancy |
6k1/p2r1pp1/5bbp/3B4/8/1P3P2/P2R1BPP/6K1 w - - 1 29 | g4 | Identify any White knight outposts on the board. | a4, c4 | outposts |
r2qk2r/pp1n1p1p/3Q1np1/4p3/4P3/5P2/PPP3PP/RNB1K2R b KQkq - 0 10 | Qe7 | Is the move from f6 to d5 legal? | Yes | legality |
rn2k1nr/pppb1ppp/3bq3/1B6/3P1p2/2N2N2/PPP2KPP/R1BQ3R w kq - 3 9 | Re1 | Does Black have any passed pawns? | No | structure |
8/2p3p1/4k2p/8/p3BPP1/4N3/1P3K2/2r5 b - - 8 45 | Ra1 | Does Black have any isolated pawns? | Yes: a4, c7 | structure |
4rrk1/p3q2p/2p3p1/2Np1bb1/1P1B2n1/2P5/PQ2B1PP/3R1RK1 w - - 9 23 | Bf3 | Identify any Black knight outposts on the board. | e4 | outposts |
7k/pp3pp1/2p1p3/q7/1n6/2Nr4/PP1K2PP/1Q3R2 w - - 0 24 | d8d3 | Is the White king in check? | Yes | check |
3r2k1/3P1pb1/pq2pn1p/2p1N1p1/P7/1P3Q1P/3R1PP1/3R2K1 w - - 2 32 | Nc6 | What is the material balance in this position? | White is up 2 pawns of material | material |
6k1/6p1/6Np/5Q2/8/6P1/q6K/8 w - - 7 68 | a7a2 | Is the White king in check? | Yes | check |
4Q1k1/6pp/p1p2q2/2p2b2/P1Pp4/1P1P1NP1/5P1P/6K1 b - - 4 33 | e4e8 | Is the Black king in check? | Yes | check |
2kr1br1/pp1b3p/1qn1pp1n/3p4/1P1P4/P4N2/2B2PPP/RNBQ1RK1 w - - 3 13 | Bxh7 | Is the move from c1 to h6 legal? | Yes | legality |
rn1qkb1r/pp3pp1/2n1p1b1/2PpP2p/5PPP/2N5/PPP1N3/R1BQKB1R w KQkq - 0 10 | f5 | What piece is on g4? | White Pawn | occupancy |
r4r1k/1ppq2p1/2np3p/p3p3/P1BP2bP/2P1B1P1/1P3PQ1/R3R1K1 w - - 1 19 | Bd5 | Identify any White knight outposts on the board. | None | outposts |
2q1Rbk1/3n1ppp/8/1p1p1PB1/8/1P4QP/5PP1/1B4K1 b - - 0 32 | Qxe8 | Is the White king in check? | No | check |
8/3q3r/4knR1/2rp1p2/p1p2P2/P1P1PB2/1P3PQ1/2KR4 w - - 3 39 | Rd4 | Are there any open files in this position? | Yes: g, h | files |
2r4r/1p2bk2/p6p/3R2p1/8/1Q3PP1/PP3P2/1K6 b - - 1 24 | a4b3 | What is the material balance in this position? | White is up 2 pawns of material | material |
r1bqk2r/1p1nppbp/2pp1np1/p7/P1BPP3/2N2P2/1PP1N1PP/R1BQ1RK1 b kq - 1 8 | d5 | Is the move from a8 to a7 legal? | Yes | legality |
r1b1k2r/1p3q1p/p3p1n1/2B1Pp2/1PB2P2/8/P6P/R3QR1K b kq - 0 22 | b6 | Does Black have any isolated pawns? | Yes: h7 | structure |
5rk1/p4Rp1/1p3n2/5QNp/7P/q4P2/5P2/6K1 w - - 1 29 | Rxf6 | Identify any Black knight outposts on the board. | a5, c5 | outposts |
8/R6P/1p2bk2/2p5/2P1pp2/1P6/P3B2r/1K6 b - - 0 45 | f3 | Is the g-file open, semi-open, or closed? | open | files |
rnb1kb1r/1pqpn1pp/p3p3/4PpB1/3N1P2/2N5/PPP3PP/R2QKB1R b KQkq - 0 10 | Ng6 | Is the move from c7 to c6 legal? | Yes | legality |
r4r1k/1ppnnp2/1pbp1q2/5P1p/2P1PQp1/2N1N3/PP2B1PP/R4RK1 w - - 6 19 | Bxg4 | Is the d-file open, semi-open, or closed? | semi-open for White | files |
N4r2/p2k4/3p4/2p3pp/2PnBp2/1P5b/P4R2/R6K b - - 1 27 | g4 | Are there any open files in this position? | Yes: e | files |
8/P4k2/7p/4np2/3b4/2NP2P1/1P4K1/R1B4r b - - 10 44 | Rg1+ | Is the move from d4 to e8 legal? | No | legality |
2b2r1k/r5bp/p2R1p1q/1pnB1P2/4pP2/6Q1/PPPB3P/2K3R1 w - - 4 25 | Rc6 | Does White have any isolated pawns? | Yes: f4, f5, h2 | structure |
rnb1k1nr/ppppqppp/4p3/8/2PP4/P7/1P1bPPPP/RN1QKBNR w KQkq - 0 5 | b4d2 | Is the White king in check? | Yes | check |
rnb1k2r/ppq1nppp/4p3/2ppP3/3P3P/P1P5/2P2PP1/R1BQKBNR w KQkq - 1 8 | Nf3 | Identify any White knight outposts on the board. | None | outposts |
r1bqkbnr/1p1p1ppp/p1n1p3/8/3NP3/2N5/PPP2PPP/R1BQKB1R w KQkq - 2 6 | Nxc6 | Is the White king in check? | No | check |
rnbq1rk1/pppp1ppp/5n2/4p3/1bB1P3/2N2N2/PPPP1PPP/R1BQK2R w KQ - 6 5 | O-O | Are there any open files in this position? | No | files |
2r3k1/r5p1/p3pn1p/2p2q2/4P3/4Q3/PP2B1PP/2R2RK1 b - - 0 23 | Qe5 | What piece is on g5? | Empty | occupancy |
6k1/6p1/3B1pKp/8/7P/4r1P1/2B5/8 w - - 10 65 | Bb1 | What piece is on c5? | Empty | occupancy |
6k1/5pb1/p1p2n2/1pPpq3/1P3pP1/PQ5P/6B1/1K1R4 w - - 2 39 | Ka2 | Is the move from d1 to h1 legal? | Yes | legality |
r1b5/p2k1ppp/1p6/3pP3/8/6P1/P2K1PBP/2R5 b - - 0 20 | Bb7 | What piece is on a8? | Black Rook | occupancy |
r3k2r/ppp1npp1/8/2p1n3/4P3/2P2PPb/PP3KBq/RN1QN1R1 b kq - 1 16 | Rd8 | Is the move from e7 to f8 legal? | No | legality |
3r1rk1/pp3p1p/3qpp2/7P/4Nn2/1B1b1Q2/PP3PP1/R3R1K1 b - - 2 20 | Qe5 | Is the move from d8 to b8 legal? | Yes | legality |
r3R3/1k1q4/1pp2b2/3p4/1N3Pp1/P7/1PQ4P/2KR4 b - - 0 30 | e1e8 | Identify any Black knight outposts on the board. | d5, f3, h3 | outposts |
rnbq1rk1/pppp1ppp/5n2/2b1p3/1P2P3/P1N2Q2/2PP1PPP/R1B1KBNR b KQ - 0 5 | Bb6 | Is the move from c5 to e3 legal? | Yes | legality |
r1bqkbnr/1pp2ppp/p1B5/3p4/P1PPp3/4P3/1P3PPP/RNBQK1NR b KQkq - 0 6 | bxc6 | Is the h-file open, semi-open, or closed? | closed | files |
2Q5/8/5p2/3p4/3P1Pk1/3KP3/8/6q1 b - - 0 56 | Kf3 | What piece is on d5? | Black Pawn | occupancy |
q2r2k1/rbn1bpp1/1p2p2p/2n1P3/2P2P1P/5NP1/1B1NR1B1/1Q1R2K1 w - - 3 26 | Bd4 | Does White have any isolated pawns? | Yes: c4 | structure |
2b4r/Qpk5/Rp1q1p2/2Np4/6pp/8/4n1PP/1R1K4 w - - 0 30 | Raxb6 | Is the White king in check? | No | check |
r2q1rk1/p1p1bppp/2p2B2/8/2Ppp3/2N3PP/PP2PPB1/R2Q1RK1 b - - 0 14 | g5f6 | What is the material balance in this position? | White is up 5 pawns of material | material |
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