fen stringlengths 28 76 | move stringlengths 2 7 | question stringlengths 20 48 | answer stringlengths 2 34 | task_type stringclasses 7
values |
|---|---|---|---|---|
1r3r2/1bbq2pk/2n4p/1pp2P1n/4N3/3P2pP/1P1BN1BK/3QRR2 w - - 0 29 | Kg1 | What is the material balance in this position? | Black is up 1 pawn of material | material |
Qn2k3/p3B2p/3P2p1/2p5/3b4/8/Pq4PP/R6K w - - 0 24 | Rf1 | What is the material balance in this position? | White is up 2 pawns of material | material |
8/8/8/8/5p2/8/6k1/4K3 w - - 5 58 | f3g2 | What is the material balance in this position? | Black is up 1 pawn of material | material |
rnb1kb1r/p1pp1p1p/6p1/1q6/4Pp1P/3P2N1/PPP3P1/RNBQ1K1R w kq - 0 12 | Nc3 | Is the Black king in check? | No | check |
2q4k/5R2/p4Np1/2p1p3/PpB5/3P3P/1Pn5/6K1 b - - 5 40 | Qxh3 | Does White have any passed pawns? | No | structure |
2r3k1/2pR2bp/2P3p1/2B5/3p4/2r3P1/5P1P/2R3K1 w - - 5 39 | Rxg7+ | What piece is on h7? | Black Pawn | occupancy |
r2q1r1k/pp4b1/3pb2p/1P2p3/Q3P2N/3PB1n1/P1N2RB1/3R2K1 b - - 0 24 | Qxh4 | What is the material balance in this position? | White is up 2 pawns of material | material |
2kr4/p3np2/1p1pp3/8/2Pb2p1/BP3qP1/P1Q2P1r/3R1RK1 w Q - 0 2 | Kxh2 | Is the move from d1 to b1 legal? | Yes | legality |
8/p5pk/7r/5pp1/3N1P2/1P1q1QK1/P4BR1/8 b - - 4 45 | g4 | Are there any open files in this position? | Yes: c, d, e, h | files |
8/5K2/1k6/1B4P1/P4P2/8/8/8 b - - 0 51 | g4g5 | What is the material balance in this position? | White is up 6 pawns of material | material |
4kr2/2qn1p1p/p2pp3/6b1/2p1bP2/1NQ5/P1P3PP/1K1R1B2 w - - 0 21 | fxg5 | Is the e-file open, semi-open, or closed? | semi-open for White | files |
r1bqk2r/pppp2pp/1bP2p2/3Qp1B1/8/2P2N2/PP2KnPP/RN3B1R w kq - 0 10 | Nxe5 | What piece is on e8? | Black King | occupancy |
8/4R3/8/8/4b3/4k3/2r5/4K3 w - - 64 89 | Kd1 | Is the White king in check? | No | check |
8/6p1/4k2p/R7/2pK2pP/5P2/p1r5/8 w - - 0 47 | fxg4 | Is the move from f3 to e8 legal? | No | legality |
8/5K2/3p2P1/4q3/1Q6/8/8/k7 b - - 2 57 | Qd5+ | What piece is on d6? | Black Pawn | occupancy |
rn3rk1/pbp5/1p1bp3/5ppN/3P4/3B4/PPP4P/R4RK1 b - - 1 20 | g3h5 | What is the material balance in this position? | Black is up 4 pawns of material | material |
2k1r3/pp1r2pp/1np5/4B3/3P4/1B4P1/PPP1R3/2K5 b - - 0 29 | Rxd4 | What piece is on e5? | White Bishop | occupancy |
8/3P1pk1/2B3p1/1P5p/3n3P/3R4/5PPK/4q3 b - - 2 41 | Ne2 | Identify any Black knight outposts on the board. | None | outposts |
rbq1krb1/ppp1pppp/4n1n1/3p1N2/3P4/8/PPP1PPPP/RBQNKRB1 w KQkq - 0 4 | c4 | What piece is on g5? | Empty | occupancy |
Qnb2bnr/p1pp2kp/6p1/1p6/4P1q1/2P5/PP1PNp1P/RNBKR3 b - - 1 13 | Qg2 | What is the material balance in this position? | White is up 1 pawn of material | material |
rnbqkbnr/p5pp/8/1ppppp1Q/8/1PPPP3/P2N1PPP/R1B1KBNR b KQkq - 1 6 | d1h5 | Is the Black king in check? | Yes | check |
2r2rk1/6p1/p3p1pp/qp1pP3/b1nP1PP1/2P1BN2/4Q2P/R1R3K1 b - - 1 23 | f1c1 | Identify any Black knight outposts on the board. | a4 | outposts |
r1bqkb1r/pp1n1ppp/2n1p3/2ppP3/3P4/P1P5/1P2NPPP/R1BQKBNR b KQkq - 0 7 | Be7 | What piece is on g3? | Empty | occupancy |
8/1p1r2kp/p1n1p3/5pP1/1P6/P2NP3/4KP2/2R5 b - - 4 32 | Re7 | What piece is on e4? | Empty | occupancy |
rn1k2nr/1b1pbp1p/ppP5/5B2/2P5/8/PP4PP/RNB1K1NR b KQ - 0 12 | d5c6 | Identify any White knight outposts on the board. | d5 | outposts |
r7/5pp1/1p1pkn1p/P3p3/r3P1PP/2N2P2/1PP1K3/R7 w - - 0 26 | Nxa4 | Is the a-file open, semi-open, or closed? | semi-open for Black | files |
r1b3nQ/pppkn2p/6p1/4p3/2B5/3P4/PPP2P1P/RNB1K1Nq b Q - 0 11 | g7h8 | What is the material balance in this position? | White is up 3 pawns of material | material |
r1b1r1k1/1pp2pbp/4p1p1/p3P3/PqP1Q3/5N1P/2P2PP1/R1B1R1K1 w - - 1 20 | Rd1 | Is the move from c1 to d2 legal? | Yes | legality |
8/R7/p2k2p1/P4b2/r1p1n3/4K1P1/2R1N3/8 b - - 9 53 | Ra3+ | Does Black have any passed pawns? | Yes: c4 | structure |
Rq3rk1/1b1nbppp/4p3/8/1p2P3/3BBN2/1P2QPPP/2R3K1 b - - 0 20 | Qxa8 | What is the material balance in this position? | White is up 5 pawns of material | material |
3r1rk1/pp3pp1/2p4p/q2P1b2/2P5/2b2N2/P4PPP/2RQR1K1 w - - 0 18 | f6c3 | What is the material balance in this position? | Black is up 3 pawns of material | material |
rnbqkbnr/pp2pppp/3p4/1Bp5/4P3/5N2/PPPP1PPP/RNBQK2R b KQkq - 1 3 | Nd7 | Is the move from d8 to d7 legal? | Yes | legality |
r1bqkbnr/pp1p1ppp/4p3/1N2n3/2P5/2N5/PP3PPP/R1BQKB1R b KQkq - 1 8 | a6 | Does White have any isolated pawns? | No | structure |
rn2k1nr/p1pp2b1/1p2pq2/7p/5P1P/3PR3/PPPQ2p1/RNB1K1N1 w Qkq - 0 15 | g3g2 | What is the material balance in this position? | Black is up 1 pawn of material | material |
5rk1/ppp1rpp1/3p2n1/8/3Pn2P/1B3N2/PP3B2/4RRK1 w - - 0 26 | e8e7 | What is the material balance in this position? | White is up 1 pawn of material | material |
2kr2r1/1p1b4/p1qBpp2/n2nP3/P2Q2P1/3B2NP/2P2K2/R6R w - - 0 24 | Qa7 | What is the material balance in this position? | White is up 1 pawn of material | material |
3r4/4k2p/6p1/1R2N3/5PP1/4K3/8/5n2 w - - 7 49 | d2f1 | Is the Black king in check? | No | check |
r2qk2r/4bpp1/p1n1pnp1/1p1p3P/2pP1BP1/2P1P3/PP1NBP2/R2QK2R w KQkq - 2 16 | Bf3 | Does Black have any passed pawns? | No | structure |
8/3kbp2/6p1/2P1P2p/1PBBp2P/r5P1/5P2/3K4 w - - 8 35 | Kc2 | What piece is on c5? | White Pawn | occupancy |
2b5/1pr4p/p2R1Qp1/1q6/4k3/1P5P/P6K/8 w - - 8 34 | Rd4+ | Is the d-file open, semi-open, or closed? | open | files |
r2k1R2/pbp4R/1pn2PB1/3pP3/5Pp1/8/PPPQ4/2K5 b - - 0 28 | h8f8 | What is the material balance in this position? | White is up 12 pawns of material | material |
r1b2k2/ppp5/2n2q2/5p2/2BPn3/7R/P4PPP/3Q1RK1 w - - 0 1 | Rh8+ | Does Black have any passed pawns? | No | structure |
3q4/2p5/pr1p4/2nPp1k1/4PpPp/2P2P1B/2PK4/QR6 b - - 7 43 | Qb8 | Does Black have any passed pawns? | Yes: a6, h4 | structure |
1rb2r1k/1pq1bppp/p2pp3/4nPP1/3NP3/1PN1B1Q1/1PP4P/R4RK1 w - - 3 17 | Nf3 | Does White have any passed pawns? | No | structure |
r3kr2/5pQp/p7/2pPP3/2B5/1P2q2P/P1n1K1P1/R6R w q - 4 23 | Kf1 | Is the White king in check? | Yes | check |
2r2bQ1/4kp2/pq1p1p2/4pP2/1p6/5N2/PPb3PP/K2R1B1R b - - 1 21 | Bxd1 | Is the e-file open, semi-open, or closed? | semi-open for White | files |
rn1qkbnr/pp4pp/2p5/4N3/4P1b1/8/PPPP2PP/RNBQK2R w KQ - 1 8 | Qxg4 | Is the e-file open, semi-open, or closed? | semi-open for Black | files |
2r3k1/1p1qR2p/p2n1rpQ/3p2N1/6P1/P1P5/1P3P1P/4R1K1 b - - 4 30 | Qxg4+ | Does White have any isolated pawns? | No | structure |
rnbqkb1r/pp1ppppp/5n2/2p5/2PP4/8/PP2PPPP/RNBQKBNR w KQkq - 0 3 | d5 | What piece is on h8? | Black Rook | occupancy |
4r2k/2R5/4p2p/5p2/p1B5/1Pr3P1/7P/5R1K b - - 0 39 | axb3 | What piece is on d8? | Empty | occupancy |
8/5p2/4k3/8/K7/8/3B4/8 b - - 0 41 | Kd5 | Is the Black king in check? | No | check |
6k1/4bpp1/p2r3p/P2b4/8/4BPP1/1P3K1P/3R4 w - - 0 31 | Bc5 | Identify any Black knight outposts on the board. | None | outposts |
r1b3k1/pp1n2pp/4p3/3pP3/8/5rP1/PP1K3P/R4R2 w - - 0 20 | f8f3 | What is the material balance in this position? | Black is up 7 pawns of material | material |
3rr3/p1q2k2/4pbp1/2p2n2/2P2BQ1/5b2/P3BPP1/3R1RK1 w - - 0 29 | Bxf3 | What piece is on f1? | White Rook | occupancy |
rqb2rk1/p2p1ppp/2nPp3/1p6/6n1/1B3N1P/PP3PP1/R1BQ1RK1 b - - 0 13 | Nf6 | What is the material balance in this position? | Black is up 1 pawn of material | material |
rnbqk2r/pp2nppp/2p1p3/3p4/3PP3/P1B2P2/1PP3PP/R2QKBNR b KQkq - 0 7 | b6 | What piece is on f6? | Empty | occupancy |
8/6k1/p1p3B1/1p1pr2p/3R2bP/2P2rN1/PP3B2/6K1 w - - 1 27 | Bc2 | What is the material balance in this position? | Equal | material |
rn1q2k1/1p3rp1/4pbNp/p7/P7/3PR3/1PP2PPP/R2Q2K1 w - - 2 17 | f8f7 | What is the material balance in this position? | Black is up 1 pawn of material | material |
2r1r1k1/p1q1bp1p/1p4p1/n2b1N2/8/P2B4/1B2QPPP/3R1RK1 w - - 2 21 | Be5 | What is the material balance in this position? | Black is up 1 pawn of material | material |
r1bqk2r/ppp2ppp/2np1n2/8/3PP3/2N5/PPP1BKPP/R1BQ1R2 w kq - 0 9 | Kg1 | Is the move from c3 to b5 legal? | Yes | legality |
1rbk3r/2p1nppp/p1np4/1p3q2/4N3/N4B2/PPP1QPPP/3RR1K1 b - - 1 16 | Bd7 | What is the material balance in this position? | Black is up 1 pawn of material | material |
rnbr2k1/pp2qpp1/4p3/3p2P1/2PPn3/2N2N2/PP3P2/2RQKB1R b K - 0 14 | Nc6 | What piece is on f4? | Empty | occupancy |
r4rk1/1p1nbpp1/1q3np1/3p4/p2P4/P4PP1/1P2B2P/RNBQ1RK1 b - - 2 18 | Ne5 | Does Black have any isolated pawns? | Yes: d5 | structure |
r3k2r/pbqn1ppp/4p3/8/1p1PB3/4PN2/1P3PPP/R2QK2R w KQkq - 0 15 | Rc1 | Identify any White knight outposts on the board. | c5 | outposts |
5rk1/p4qpp/r7/2P1B3/4p1N1/1b4QP/5PP1/5RK1 w - - 2 34 | Bd6 | Identify any White knight outposts on the board. | d6 | outposts |
4k3/4P3/3K4/8/8/8/8/8 w - - 1 6 | Ke6 | What piece is on e5? | Empty | occupancy |
8/1p6/7p/P4Pp1/P1K1k3/7P/8/8 b - - 0 58 | Kxf5 | What piece is on g6? | Empty | occupancy |
2k2b2/ppp4r/6p1/1P6/2PB2p1/P2QP1P1/5PK1/3R3r b - - 2 27 | R7h2# | What is the material balance in this position? | White is up 5 pawns of material | material |
3r1rk1/ppN2ppp/2n5/5bq1/8/P3P3/1P3PPP/R2QKB1R w KQ - 1 14 | a8d8 | What is the material balance in this position? | White is up 1 pawn of material | material |
8/7p/8/p7/5p2/4qPkP/pK1b4/8 b - - 1 55 | c2b2 | What is the material balance in this position? | Black is up 14 pawns of material | material |
4rk2/1p1n1p2/p1pb2p1/5p1r/3PP3/5P1P/PPBB4/1K1R3R w - - 3 23 | b4 | What piece is on e1? | Empty | occupancy |
r2k3r/2q1bppp/p1Pp4/2n3B1/1pB1nP2/6Q1/PPP3PP/2KRR3 w - - 3 18 | Qe3 | Identify any Black knight outposts on the board. | None | outposts |
r1b1k1nr/pppp2pp/2n2q2/2b1p3/2B1P3/5N2/PPPP2PP/RNBQ1RK1 w kq - 4 7 | f8c5 | Is the Black king in check? | No | check |
3r1k2/5p1p/b3p2b/3R1N2/5P2/8/PKP3PP/4R3 b - - 0 24 | Bg7+ | Is the move from e6 to b1 legal? | No | legality |
rq3rk1/pb3ppp/2pb1n2/4n3/1p1NP3/2N5/PPQ1BPPP/R1BR2K1 w - - 0 15 | Na4 | What is the material balance in this position? | Equal | material |
5rk1/pp5p/4pp2/1b1p1nP1/r7/6B1/3RN1PP/5RK1 w - - 0 26 | d7b5 | What is the material balance in this position? | Black is up 3 pawns of material | material |
3r4/4k2p/1pnr1pp1/p1p5/1n6/P5P1/1P2PPBP/1RR1BK2 b - - 0 21 | Na2 | Identify any White knight outposts on the board. | None | outposts |
r1b2r2/pp1pk1pp/1q1N4/4P3/3p4/3BnN2/PPPB1KPP/R3R3 w - - 5 18 | Rxe3 | Is the d-file open, semi-open, or closed? | semi-open for White | files |
rn1qkb1r/pp1b1p2/4pp1p/2ppP3/3P4/P1N2N2/1PP1QPPP/R3KB1R w KQkq - 0 10 | exf6 | Does Black have any isolated pawns? | Yes: h6 | structure |
r4rk1/pp1bq1bp/n2p4/2pPp1p1/2P1P1pP/2N3B1/PPQ2PP1/R3KN1R w KQ - 0 17 | Ne3 | Identify any White knight outposts on the board. | None | outposts |
1r3rk1/3nbppp/1qn1p3/p1ppPP2/1p1P4/2P1NN2/PP2QBPP/R4RK1 w - - 3 17 | Rac1 | What piece is on e3? | White Knight | occupancy |
2bq1b1r/1rN1nQ1p/2kp4/3Npp2/4P3/8/P1P2PPP/R4RK1 w - - 1 18 | Rab1 | What is the material balance in this position? | Black is up 1 pawn of material | material |
r1b1k2r/p1p2pQp/1p1p4/8/1PP1n3/P2KPq2/3P3P/R1B2B1R b kq - 0 16 | Bf5 | What piece is on g3? | Empty | occupancy |
r1b5/p6p/2pkpQp1/4q3/8/7P/P5PK/8 w - - 0 24 | e3e5 | Is the White king in check? | Yes | check |
2r3k1/5q1p/1p1rp1p1/pPn1Np2/2PNnPP1/P3Q2P/2K5/3R2R1 b - - 3 32 | Qf8 | What piece is on e3? | White Queen | occupancy |
3q1rrk/1R5p/1P1p4/3Pn3/3Q2P1/2N4P/1P2KP2/8 w - - 1 37 | f4 | Identify any Black knight outposts on the board. | None | outposts |
5r1k/1p4qp/p1n1Pb2/8/3pN3/P6Q/1PPB4/2K4R w - - 1 33 | Bh6 | What is the material balance in this position? | Equal | material |
8/p7/8/1p6/1P2p2p/P3P1Pk/5P2/6K1 b - - 0 39 | hxg3 | Does Black have any isolated pawns? | Yes: e4, h4 | structure |
rnbqkb1r/p3pp1p/6p1/1p6/2pP3B/2P1P3/5PPP/R2QKBNR w KQkq - 0 10 | Qf3 | Identify any White knight outposts on the board. | None | outposts |
r3k2r/1pqnbpp1/p1p1pnp1/8/3P1PP1/2N1P2P/PP4B1/R1BQ1RK1 b kq - 0 14 | Nb6 | Is the Black king in check? | No | check |
r1bq1rk1/1ppnbppp/p1p5/4p3/3PP3/2N2N2/PPP2PPP/R1BQR1K1 b - - 0 9 | Bd6 | Identify any White knight outposts on the board. | None | outposts |
8/8/1R1p4/1p1Pkp1p/4p1p1/1B1b2PP/5P2/6K1 w - - 0 33 | g5g4 | What is the material balance in this position? | White is up 3 pawns of material | material |
4r1k1/1p2r1bp/p1p1n1p1/3p1P1q/QP1P3P/3B2P1/P2N1P1K/3R1R2 b - - 0 28 | gxf5 | What is the material balance in this position? | White is up 1 pawn of material | material |
8/8/1p1k1n2/pP1p3p/P2P1p1P/3N1P2/5K2/8 w - - 1 40 | Nxf4 | Does White have any passed pawns? | No | structure |
8/p7/1pp2pk1/6p1/P2p1PK1/7P/1PP3P1/8 w - - 0 36 | f5+ | Does White have any passed pawns? | No | structure |
8/8/p4kQ1/8/KP6/2P4r/1P4R1/8 b - - 2 51 | g8g6 | Is the Black king in check? | Yes | check |
8/7b/K3p3/3p4/4p3/P1Q1k1q1/P7/8 b - - 5 5 | Kf2 | Is the move from e3 to e2 legal? | Yes | legality |
4r1k1/1p2qp2/p1p4p/P3P3/1PQ1pP2/4P1K1/3r3P/1RR5 b - - 2 39 | Kh8 | Are there any open files in this position? | Yes: d, g | files |
2r3r1/2p1k3/1p1p1p2/p1nPpP2/P1P1P2p/1PRN2pP/4R1K1/8 w - - 8 41 | Ne1 | What piece is on b3? | White Pawn | occupancy |
8/5pk1/4p1pp/p3P3/5P2/1P5P/P2Q1KP1/7q b - - 0 49 | Qb1 | Does Black have any isolated pawns? | Yes: a5 | structure |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.