fen stringlengths 28 76 | move stringlengths 2 7 | question stringlengths 20 48 | answer stringlengths 2 34 | task_type stringclasses 7
values |
|---|---|---|---|---|
r1b1r2k/pp1n1pp1/2n1p3/2qpP2P/5PQ1/P4N2/1PP3P1/1K1R1B1R b - - 2 18 | Ne7 | Identify any Black knight outposts on the board. | None | outposts |
r6r/1p1nk3/q3pbQp/3p3P/3P4/5NN1/P2B1PP1/R5K1 w - - 3 24 | Re1 | Is the f-file open, semi-open, or closed? | semi-open for Black | files |
2bQ1nk1/5rbp/2q3p1/np2p3/4P3/1P2BPN1/1K4P1/1N1R3R b - - 1 23 | Qa8 | Are there any open files in this position? | Yes: a, c, d | files |
1b3rk1/p6p/4R1n1/3P1p1q/P4p2/2Q4P/1P3PB1/6RK w - - 1 38 | d6 | Does White have any passed pawns? | Yes: d5 | structure |
2r2qk1/r2n2p1/p3p2p/2p5/3pPP2/Q7/PP2B1PP/2R2RK1 b - - 0 21 | Kh8 | Are there any open files in this position? | No | files |
6Q1/2kp4/1p1q1p2/p2Pp3/4r3/PP6/5PPP/5RK1 w - - 0 32 | c4e4 | What is the material balance in this position? | White is up 1 pawn of material | material |
2rrb1k1/8/5p1p/pp3PP1/3P4/q2BP3/PN5Q/K1R1b3 w - - 0 33 | Rxe1 | What is the material balance in this position? | Black is up 4 pawns of material | material |
6k1/6pp/4p1b1/p2rB3/3P4/1P6/6PP/R5K1 w - - 1 28 | Rc1 | Is the move from a1 to a2 legal? | Yes | legality |
5r2/pp3Pk1/8/4Qbq1/2P2R2/8/PP4PK/8 b - - 6 37 | Kg6 | Is the Black king in check? | Yes | check |
r1bq1rk1/pppn2pp/2p2p2/2b1p3/2N1P3/3P1N2/PPP2PPP/R1BQ1R1K b - - 1 9 | Re8 | Is the d-file open, semi-open, or closed? | semi-open for Black | files |
4r1k1/pp3p1p/2p2p2/3b1P2/P7/4K2P/8/8 w - - 1 32 | d8e8 | Is the White king in check? | Yes | check |
r1b2rk1/pp1nq1bp/2p3p1/8/1PP1Pp2/3p3P/P1Q1NPP1/1RBR1BK1 w - - 0 19 | Qxd3 | What is the material balance in this position? | Equal | material |
5k2/1b6/4pPr1/p1p4N/P1Pr1pPP/1P3P2/3p3K/3R1R2 w - - 0 39 | g5 | Is the White king in check? | No | check |
r1b3r1/p3k2p/1ppNp1p1/2q2p2/2PQPP2/1P6/P5PK/3RR3 w - - 2 21 | Nxc8+ | Identify any Black knight outposts on the board. | None | outposts |
5rk1/1p6/2p1P3/p4pq1/2P2P1P/1P4PB/P6K/8 w - - 0 37 | fxg5 | Does White have any passed pawns? | Yes: e6, h4 | structure |
rn1q1rk1/pbpp1ppp/1p2pn2/8/1bPP4/2NBPN2/PP1B1PPP/R2QK2R b KQ - 2 7 | d5 | Does Black have any passed pawns? | No | structure |
r1bN1bkr/1p1n2pp/p2p1n2/6B1/4P3/q1N5/P1PQ1PPP/1R3RK1 w - - 3 14 | Nd5 | Is the move from e4 to c8 legal? | No | legality |
2q4k/p3r2n/5N1R/4N3/3p4/6R1/5PK1/8 w - - 2 50 | Ng6+ | Identify any Black knight outposts on the board. | c3 | outposts |
3r2k1/4rp2/bp1q1bp1/3p4/1Q1P4/3NPBP1/2R2P2/2R3K1 w - - 0 31 | Rc6 | Is the move from f3 to f8 legal? | No | legality |
1r1q4/4b1kp/2r1Qn2/p2p4/3P4/5N2/P4BPP/5RK1 w - - 0 26 | Qxc6 | Identify any Black knight outposts on the board. | None | outposts |
7r/3r1k1p/p4np1/1pR5/5N2/8/PPP3PP/2K1R3 b - - 0 25 | Rhd8 | What is the material balance in this position? | White is up 1 pawn of material | material |
8/Rpr2ppp/3kpn2/3p4/8/1PP1P3/3BKPPP/7R b - - 2 22 | e1e2 | What is the material balance in this position? | White is up 5 pawns of material | material |
4rr1k/pp1b2pp/1qn1pn2/3pN3/3P1b2/2B3N1/PPB2PPP/R2QR1K1 b - - 13 17 | Re7 | Identify any Black knight outposts on the board. | d5 | outposts |
r3r1k1/pppnb2p/2nqbppB/3p4/3P4/PN1B1N2/1P3PPP/R2QR1K1 w - - 3 16 | Qd2 | What piece is on d8? | Empty | occupancy |
2r5/PR1N4/4p1k1/2b1Pp1p/3N3P/3K2P1/8/8 w - - 2 47 | e7c5 | What is the material balance in this position? | White is up 4 pawns of material | material |
5r1k/pp6/3Q4/8/3P3P/6P1/PP3r2/6K1 b - - 0 38 | Kg8 | Does White have any passed pawns? | Yes: d4, g3, h4 | structure |
8/3r4/2p3kp/5Rp1/p2n2P1/P1P2K1P/1P3P2/8 w - - 0 36 | e2d4 | Is the White king in check? | Yes | check |
r2qnrk1/pp2b1pp/5p2/3N4/2BBP3/6QP/PPP5/2K3R1 b - - 1 21 | Rf7 | Are there any open files in this position? | Yes: d | files |
6k1/5p2/p5pp/2b3q1/4P3/1bQ2R1P/1P3PP1/6K1 w - - 0 38 | Qxb3 | Does White have any isolated pawns? | Yes: b2 | structure |
4q1k1/5p1p/6p1/N2rp3/1P6/1Qr5/5PPP/R5K1 w - - 0 32 | Qxd5 | Identify any Black knight outposts on the board. | d4 | outposts |
r1r1nk2/5p1p/1p2p1p1/pN2B3/Pb1PP3/1P5P/6P1/2RR2K1 w - - 1 29 | Kf2 | Does Black have any passed pawns? | No | structure |
1k6/1p6/8/4P3/P2r1PP1/7r/3K4/1RB2B1b w - - 8 35 | Kc2 | Is the move from f1 to h8 legal? | No | legality |
2r5/1p2k3/4prp1/pP1p3p/3P1P2/P1n2BP1/7P/2R1R1K1 b - - 1 30 | Kd7 | Identify any Black knight outposts on the board. | d5 | outposts |
3br2k/1p5r/p3bR2/3pB3/1P6/P2BPQ2/3P1P2/2R1K2q w - - 1 30 | Ke2 | Identify any Black knight outposts on the board. | None | outposts |
rnbqkb1r/ppp1pp1p/3p1np1/8/2PPP3/2N5/PP3PPP/R1BQKBNR b KQkq - 0 4 | Bg7 | Identify any White knight outposts on the board. | None | outposts |
rnb1k2r/p4pp1/2pbpq1p/1p2N3/2pP4/P1N1P3/1P3PPP/R2QKB1R w KQkq - 2 10 | f4 | Is the move from e1 to h4 legal? | No | legality |
r1bqk2r/4npb1/p2p3p/1p1Pn3/3N1B2/1B6/PPPQ2PP/R4RK1 b kq - 0 18 | Qb6 | Is the move from g7 to f6 legal? | Yes | legality |
4rk2/3Qp3/3n3q/2pP1pNp/4pP2/4P3/6R1/6K1 w - - 7 45 | Kh2 | What piece is on b6? | Empty | occupancy |
5rk1/pb3N2/1pr1Pp2/3p3P/8/8/PR3PP1/4R1K1 b - - 0 28 | Re8 | What is the material balance in this position? | White is up 1 pawn of material | material |
br3rk1/2q3bp/p2pp1p1/N1p1n1B1/2PnP3/R1N5/1P1Q1PPP/R2B2K1 b - - 2 23 | Qf7 | Identify any Black knight outposts on the board. | None | outposts |
rn3k2/1b1p2bp/p1p3p1/3p4/1BpP4/4RP2/r4NPP/5RK1 b - - 1 22 | e1b4 | Is the Black king in check? | Yes | check |
3qr3/3rb2Q/p2pk1p1/1p1bp3/8/P2BB3/1PP3PP/4R2K w - - 0 25 | Bxg6 | Identify any Black knight outposts on the board. | e5 | outposts |
r1bqkb1r/pp3p1p/2n1pp2/8/2Q5/2N2N2/PP2PPPP/R3KB1R b KQkq - 0 9 | Qb6 | What piece is on c5? | Empty | occupancy |
3rr1k1/1p1bbppp/p2ppn2/q7/P3PP2/2NQBB2/1PP3PP/R4R1K w - - 2 16 | Rfd1 | Is the d-file open, semi-open, or closed? | semi-open for White | files |
r1b2rk1/1pq1bppp/p1nppn2/8/P2NPP2/2N1B3/1PP1B1PP/R2Q1RK1 w - - 0 11 | Qe1 | Does White have any passed pawns? | No | structure |
r5k1/7p/4Qbq1/2p3P1/4P3/1PpbB3/8/2K3RR b - - 0 29 | Kh8 | Is the f-file open, semi-open, or closed? | open | files |
rnbqk1nr/ppppppbp/6p1/8/3P4/5NP1/PPP1PP1P/RNBQKB1R b KQkq - 0 3 | f5 | Are there any open files in this position? | No | files |
4r3/pp3k2/3b1pp1/8/3Pb1Pp/4B2P/1P2NP2/2R3K1 b - - 3 40 | Bf3 | What piece is on c3? | Empty | occupancy |
r1bqr1k1/ppp2pbp/2np1np1/8/2PNP3/2N1BP2/PP2B1PP/R2Q1RK1 b - - 0 10 | Nxd4 | Is the e-file open, semi-open, or closed? | semi-open for Black | files |
rn1qk2r/1b1pbppp/p3p3/3nP3/Pp2N3/3B1N2/1PP1QPPP/R1B1K2R w KQkq - 3 11 | O-O | What piece is on a3? | Empty | occupancy |
2B5/pp2pkbp/2n3p1/4q3/5P2/1P2P3/P5PP/3RR1K1 b - - 0 23 | f2f4 | What is the material balance in this position? | Black is up 1 pawn of material | material |
8/p4kp1/3R4/r7/1n5P/6P1/5PK1/8 b - - 3 46 | Rd5 | Are there any open files in this position? | Yes: b, c, d, e | files |
8/p2bppkp/3p2p1/2r3Pn/2pNP3/2P2P2/PKP4R/7R w - - 0 24 | f4 | What piece is on f2? | Empty | occupancy |
3r4/5pkp/6p1/8/1P6/P1n1P1P1/R2N1P1P/6K1 w - - 1 34 | a4c3 | What is the material balance in this position? | White is up 3 pawns of material | material |
3rk1r1/1p5p/p7/3n1p2/P2Bp3/6P1/4KP1P/2RR4 w - - 3 27 | Be5 | Identify any White knight outposts on the board. | h4 | outposts |
r4knr/5pp1/p1pp2q1/7p/5BP1/2P4P/PP3P2/R2QR1K1 b - - 1 18 | d5 | What piece is on c8? | Empty | occupancy |
6k1/p3pp1p/3p2p1/1p6/6RP/1Nb1r3/P1P5/1K4R1 b - - 1 24 | Bf6 | Identify any White knight outposts on the board. | None | outposts |
r5k1/pp1q2p1/2p5/2bpp1p1/4P3/P2n2P1/1B1NB2P/R3Q2K b - - 5 24 | Nxe1 | Does Black have any passed pawns? | Yes: c6 | structure |
r4rk1/1p3pp1/pPp4p/P1Pp4/3P2q1/2N3R1/2Q2P2/R5K1 b - - 3 33 | Qxd4 | Does White have any passed pawns? | No | structure |
8/4Qp2/3pk1p1/2p1p3/2P1P3/3P1PKP/r5P1/6R1 b - - 0 45 | g5e7 | Is the Black king in check? | Yes | check |
2r1k2r/1p1bbppp/4p3/3pP3/1PnN1PP1/p1P2Q2/q4B1P/2R1RBK1 b k - 3 23 | Nd2 | Is the move from c8 to a5 legal? | No | legality |
r1bqk1nr/pp1pp2p/5p2/3P4/2PQ1B2/8/P2NPPPP/4KB1R b Kkq - 1 10 | e5 | Is the move from d8 to b7 legal? | No | legality |
7k/1R4R1/7p/p2p3P/P2P4/r7/1PK3P1/8 b - - 14 47 | Rc3+ | What piece is on b7? | White Rook | occupancy |
8/3N4/8/5pp1/R4n2/4kP1P/4r1PK/8 w - - 0 64 | Kh1 | What piece is on g7? | Empty | occupancy |
3r1rk1/ppqn2pp/P1p1bp2/4n3/1bN1NB2/6P1/1P2PPBP/R1Q2RK1 b - - 0 16 | bxa6 | What piece is on e5? | Black Knight | occupancy |
r3r1k1/pp4np/2pp2p1/5q2/2P2P2/2N5/PP3QPP/4RRK1 w - - 0 20 | Qd4 | Is the Black king in check? | No | check |
1B2k2r/p4ppp/1p2pn2/8/r2P4/P1P5/5PPP/RR4K1 w k - 2 22 | Rb4 | Is the c-file open, semi-open, or closed? | semi-open for Black | files |
r1bq1rk1/3n2pp/p3p3/3pp3/NQ3P1P/7R/PPP3P1/2KR1B2 w - - 0 17 | Qd6 | What piece is on f1? | White Bishop | occupancy |
2rr2k1/ppq1ppbp/5np1/PN1P4/2nP1N2/1Q5P/1P3PP1/R1B1R1K1 b - - 6 18 | Qb8 | Does Black have any isolated pawns? | No | structure |
r3qrk1/pbp3p1/1p2p1np/5pNn/2PP3P/P2BPP1R/1BQ3P1/2KR4 w - - 0 18 | g4 | What piece is on f3? | White Pawn | occupancy |
rnbqkb1r/pp2pppp/5n2/3p4/3p1B2/2N1P3/PPP2PPP/R2QKBNR w KQkq - 0 5 | exd4 | Is the move from d1 to e2 legal? | Yes | legality |
5k2/5p2/6pp/8/PR5P/1p4P1/r4PK1/8 b - - 2 36 | b2 | Is the move from h6 to g2 legal? | No | legality |
2b2rk1/b4ppp/8/pp6/3PP3/2P1KQp1/BPR3q1/R1B5 b - - 0 30 | Qxc2 | Is the move from g8 to c5 legal? | No | legality |
7k/3B3p/p4rp1/1P2r3/4b3/8/5PPP/R2R2K1 b - - 0 30 | axb5 | What is the material balance in this position? | White is up 1 pawn of material | material |
rnbqk1nr/pp3ppp/2pb4/3p4/2PPp1P1/2N4P/PP2PPB1/R1BQK1NR b KQkq - 2 6 | Ne7 | Does White have any passed pawns? | No | structure |
b4rk1/pqpp1p1p/1p4p1/4Q3/3N4/3N4/2r3PP/B5RK b - - 0 1 | f6 | Is the White king in check? | No | check |
2r1q1k1/1b3r1p/p5pB/2bNQp2/1p6/8/PPP3PP/3R1R1K w - - 1 27 | Rxf5 | Is the move from e5 to c1 legal? | No | legality |
Q3k1r1/p1pp2q1/1pn1pb2/8/3P4/2PB2P1/PP3P1P/R3R1K1 b - - 0 19 | b7a8 | Is the White king in check? | No | check |
1B1r1rk1/pp4pp/2p1b3/6p1/P7/2b3P1/1P2PPBP/3R1RK1 w - - 0 21 | Bd6 | Is the f-file open, semi-open, or closed? | semi-open for Black | files |
rn3rk1/p4ppp/1ppb4/q7/3P4/1R3N1B/P4PPP/3Q1RK1 w - - 2 19 | d5 | Is the move from f1 to e1 legal? | Yes | legality |
r1bq1rk1/pp1nbppp/2p2n2/3p2B1/7Q/2NB1N2/PPP2PPP/2KRR3 b - - 7 11 | h6 | Is the move from c8 to h6 legal? | No | legality |
r1b1rbk1/1p3p1p/2p2np1/p1n1p3/2P1P3/2N1B2P/PP1NBPP1/3R1RK1 w - - 0 15 | a3 | Is the move from a2 to h5 legal? | No | legality |
7r/5pp1/4P3/2bk4/1p1p1P2/p1p2K1P/2P5/4R2R b - - 0 51 | fxe6 | Is the move from h8 to e8 legal? | Yes | legality |
r1qr2k1/pp2bpp1/6p1/8/3n4/P2B1PP1/QP4KP/R1B2R2 b - - 3 21 | Qc6 | Does Black have any passed pawns? | No | structure |
1r3k2/R3R1p1/5p2/7p/8/K3P3/6r1/8 w - - 2 34 | h2g2 | Identify any White knight outposts on the board. | d4 | outposts |
8/2p5/8/1p1k2pp/1P1p4/3K1PP1/2P4P/8 b - - 0 32 | g4 | Is the White king in check? | No | check |
r1b1k1nr/3pppb1/pqp5/6B1/2B1P3/2N5/PPP3PP/R2QK2R w KQkq - 2 11 | Bb3 | Does White have any passed pawns? | Yes: h2 | structure |
8/6p1/6k1/8/PP4pp/5q2/1K1Q3P/8 w - - 0 46 | h5h4 | Identify any White knight outposts on the board. | a5, b5, c5 | outposts |
5rk1/3p1ppp/2p4q/p1P2P2/5R2/P1N3PP/2b3K1/2Q5 b - - 0 32 | Bxf5 | Is the b-file open, semi-open, or closed? | open | files |
r1bq1rk1/pppp1ppp/6n1/2bPP1N1/2B5/2P5/P1Q2PPP/R1B1K2R w KQ - 3 13 | h4 | What piece is on h7? | Black Pawn | occupancy |
r4rk1/2pqbppp/p1n5/1p1pP3/3P2b1/2P1BN2/P1B2PPP/R2QR1K1 b - - 2 15 | Nd8 | Does White have any isolated pawns? | Yes: a2 | structure |
5k2/p1p4R/1pr5/3p1pP1/P2P1P2/2P3K1/8/8 b - - 1 35 | Rxc3+ | What is the material balance in this position? | Equal | material |
8/p4p2/7p/2k5/PR1p1n1P/5P2/1p3P2/6K1 w - - 0 33 | Rxb2 | What piece is on b4? | White Rook | occupancy |
r4rk1/p2pq1pp/1p2pn2/2nP1p2/8/5NP1/PPQbPPBP/R4RK1 w - - 0 14 | Nxd2 | Is the Black king in check? | No | check |
r1bq2k1/p3n1bp/3p2r1/P1pPp3/2P1Ppn1/1NN2R2/3BB1PP/1R1Q3K b - - 1 21 | Rh6 | Identify any Black knight outposts on the board. | e3 | outposts |
rn6/ppk4p/2p5/8/1Q6/2P5/P1P3qP/2K3NR w - - 6 28 | Qf4+ | Is the move from g1 to e2 legal? | Yes | legality |
2k2n1r/pb2b2p/2n1prpP/q2p2N1/1ppP1PB1/2P1BN2/PPQ3P1/2KR3R w - - 4 21 | Kd2 | Does White have any isolated pawns? | No | structure |
4k2r/ppp1bpp1/4n3/2p1P2p/4P3/1P2NK1P/PBP3P1/3R4 b - - 1 23 | Bg5 | What piece is on e2? | Empty | occupancy |
r4rk1/pp1b2pp/1q1b1n2/1P1p4/3p4/P2B1N2/5PPP/R1BQR1K1 w - - 0 17 | Bb2 | Is the move from c1 to g2 legal? | No | legality |
4r1k1/5ppp/8/R7/6P1/2p5/1p3KP1/1N6 b - - 1 30 | c2 | Does White have any passed pawns? | No | structure |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.