image
imagewidth (px) 240
240
| fen
stringclasses 900
values | task_type
stringclasses 6
values | question
stringlengths 280
477
| answer
stringlengths 2
171
| lichess_url
stringclasses 900
values | messages
listlengths 2
2
|
|---|---|---|---|---|---|---|
6k1/p4pp1/1p3q1p/2p1R3/2Q5/2P2N1P/P1P2PPK/2r5 w - - 4 24
|
piece_positions
|
List all pieces and their positions from this FEN.
Format: "White: pieces" then "Black: pieces", sorted by piece value (K, Q, R, B, N, P).
Example:
FEN: rnbqkbnr/pppppppp/8/8/4P3/8/PPPP1PPP/RNBQKBNR b KQkq - 0 1
Answer:
White: Ke1, Qd1, Ra1, Rh1, Bc1, Bf1, Nb1, Ng1, Pa2, Pb2, Pc2, Pd2, Pe4, Pf2, Pg2, Ph2
Black: Ke8, Qd8, Ra8, Rh8, Bc8, Bf8, Nb8, Ng8, Pa7, Pb7, Pc7, Pd7, Pe7, Pf7, Pg7, Ph7
FEN: 6k1/p4pp1/1p3q1p/2p1R3/2Q5/2P2N1P/P1P2PPK/2r5 w - - 4 24
Answer:
|
White: Kh2, Qc4, Re5, Nf3, Pa2, Pc2, Pc3, Pf2, Pg2, Ph3
Black: Kg8, Qf6, Rc1, Pa7, Pb6, Pc5, Pf7, Pg7, Ph6
|
https://lichess.org/training/00lvP
|
[
{
"role": "user",
"content": "List all pieces and their positions from this FEN.\nFormat: \"White: pieces\" then \"Black: pieces\", sorted by piece value (K, Q, R, B, N, P).\n\nExample:\nFEN: rnbqkbnr/pppppppp/8/8/4P3/8/PPPP1PPP/RNBQKBNR b KQkq - 0 1\nAnswer:\nWhite: Ke1, Qd1, Ra1, Rh1, Bc1, Bf1, Nb1, Ng1, Pa2, Pb2, Pc2, Pd2, Pe4, Pf2, Pg2, Ph2\nBlack: Ke8, Qd8, Ra8, Rh8, Bc8, Bf8, Nb8, Ng8, Pa7, Pb7, Pc7, Pd7, Pe7, Pf7, Pg7, Ph7\n\nFEN: 6k1/p4pp1/1p3q1p/2p1R3/2Q5/2P2N1P/P1P2PPK/2r5 w - - 4 24\nAnswer:"
},
{
"role": "assistant",
"content": "White: Kh2, Qc4, Re5, Nf3, Pa2, Pc2, Pc3, Pf2, Pg2, Ph3\nBlack: Kg8, Qf6, Rc1, Pa7, Pb6, Pc5, Pf7, Pg7, Ph6"
}
] |
|
5rk1/5p2/p2p1Rp1/1p1P2Pp/7r/8/PPPR4/1K6 w - - 0 28
|
piece_positions
|
List all pieces and their positions from this FEN.
Format: "White: pieces" then "Black: pieces", sorted by piece value (K, Q, R, B, N, P).
Example:
FEN: rnbqkbnr/pppppppp/8/8/4P3/8/PPPP1PPP/RNBQKBNR b KQkq - 0 1
Answer:
White: Ke1, Qd1, Ra1, Rh1, Bc1, Bf1, Nb1, Ng1, Pa2, Pb2, Pc2, Pd2, Pe4, Pf2, Pg2, Ph2
Black: Ke8, Qd8, Ra8, Rh8, Bc8, Bf8, Nb8, Ng8, Pa7, Pb7, Pc7, Pd7, Pe7, Pf7, Pg7, Ph7
FEN: 5rk1/5p2/p2p1Rp1/1p1P2Pp/7r/8/PPPR4/1K6 w - - 0 28
Answer:
|
White: Kb1, Rd2, Rf6, Pa2, Pb2, Pc2, Pd5, Pg5
Black: Kg8, Rf8, Rh4, Pa6, Pb5, Pd6, Pf7, Pg6, Ph5
|
https://lichess.org/training/01Siq
|
[
{
"role": "user",
"content": "List all pieces and their positions from this FEN.\nFormat: \"White: pieces\" then \"Black: pieces\", sorted by piece value (K, Q, R, B, N, P).\n\nExample:\nFEN: rnbqkbnr/pppppppp/8/8/4P3/8/PPPP1PPP/RNBQKBNR b KQkq - 0 1\nAnswer:\nWhite: Ke1, Qd1, Ra1, Rh1, Bc1, Bf1, Nb1, Ng1, Pa2, Pb2, Pc2, Pd2, Pe4, Pf2, Pg2, Ph2\nBlack: Ke8, Qd8, Ra8, Rh8, Bc8, Bf8, Nb8, Ng8, Pa7, Pb7, Pc7, Pd7, Pe7, Pf7, Pg7, Ph7\n\nFEN: 5rk1/5p2/p2p1Rp1/1p1P2Pp/7r/8/PPPR4/1K6 w - - 0 28\nAnswer:"
},
{
"role": "assistant",
"content": "White: Kb1, Rd2, Rf6, Pa2, Pb2, Pc2, Pd5, Pg5\nBlack: Kg8, Rf8, Rh4, Pa6, Pb5, Pd6, Pf7, Pg6, Ph5"
}
] |
|
1r6/8/3bkN2/2p5/P2pp3/3P3P/R4PP1/6K1 w - - 2 47
|
ascii_board
|
Generate an ASCII representation of this chess position.
Output ONLY the 8x8 grid. Use uppercase for White, lowercase for Black, dots for empty.
Example:
FEN: rnbqkbnr/pppppppp/8/8/4P3/8/PPPP1PPP/RNBQKBNR b KQkq - 0 1
Output:
r n b q k b n r
p p p p p p p p
. . . . . . . .
. . . . . . . .
. . . . P . . .
. . . . . . . .
P P P P . P P P
R N B Q K B N R
FEN: 1r6/8/3bkN2/2p5/P2pp3/3P3P/R4PP1/6K1 w - - 2 47
Output:
|
. r . . . . . .
. . . . . . . .
. . . b k N . .
. . p . . . . .
P . . p p . . .
. . . P . . . P
R . . . . P P .
. . . . . . K .
|
https://lichess.org/training/01BjV
|
[
{
"role": "user",
"content": "Generate an ASCII representation of this chess position.\nOutput ONLY the 8x8 grid. Use uppercase for White, lowercase for Black, dots for empty.\n\nExample:\nFEN: rnbqkbnr/pppppppp/8/8/4P3/8/PPPP1PPP/RNBQKBNR b KQkq - 0 1\nOutput:\nr n b q k b n r\np p p p p p p p\n. . . . . . . .\n. . . . . . . .\n. . . . P . . .\n. . . . . . . .\nP P P P . P P P\nR N B Q K B N R\n\nFEN: 1r6/8/3bkN2/2p5/P2pp3/3P3P/R4PP1/6K1 w - - 2 47\nOutput:"
},
{
"role": "assistant",
"content": ". r . . . . . .\n. . . . . . . .\n. . . b k N . .\n. . p . . . . .\nP . . p p . . .\n. . . P . . . P\nR . . . . P P .\n. . . . . . K ."
}
] |
|
r3k3/ppP2pp1/8/3Nn3/1bP3p1/4P1Pq/PP2N1K1/R1BQ1R2 w q - 3 18
|
puzzle
|
Find the best move for this chess puzzle. Respond with ONLY the move in UCI notation (e.g., e2e4).
Example 1:
FEN: 8/1r6/8/5k1p/2B4K/1P6/8/1R6 w - - 1 44
Answer: h4h5
Example 2:
FEN: 1r3rk1/pbp2p1p/1p4pb/3qp3/1n6/PP1PP1PP/NBPQ3K/R4RN1 w - - 2 18
Answer: a2b4
Now solve:
FEN: r3k3/ppP2pp1/8/3Nn3/1bP3p1/4P1Pq/PP2N1K1/R1BQ1R2 w q - 3 18
Answer:
|
g2f2
|
https://lichess.org/training/00f7K
|
[
{
"role": "user",
"content": "Find the best move for this chess puzzle. Respond with ONLY the move in UCI notation (e.g., e2e4).\n\nExample 1:\nFEN: 8/1r6/8/5k1p/2B4K/1P6/8/1R6 w - - 1 44\nAnswer: h4h5\n\nExample 2:\nFEN: 1r3rk1/pbp2p1p/1p4pb/3qp3/1n6/PP1PP1PP/NBPQ3K/R4RN1 w - - 2 18\nAnswer: a2b4\n\nNow solve:\nFEN: r3k3/ppP2pp1/8/3Nn3/1bP3p1/4P1Pq/PP2N1K1/R1BQ1R2 w q - 3 18\nAnswer:"
},
{
"role": "assistant",
"content": "g2f2"
}
] |
|
5r1k/2p3p1/7p/p4N2/Pb1B1n2/3B1b2/1PP4P/R5K1 b - - 0 23
|
piece_positions
|
List all pieces and their positions from this FEN.
Format: "White: pieces" then "Black: pieces", sorted by piece value (K, Q, R, B, N, P).
Example:
FEN: rnbqkbnr/pppppppp/8/8/4P3/8/PPPP1PPP/RNBQKBNR b KQkq - 0 1
Answer:
White: Ke1, Qd1, Ra1, Rh1, Bc1, Bf1, Nb1, Ng1, Pa2, Pb2, Pc2, Pd2, Pe4, Pf2, Pg2, Ph2
Black: Ke8, Qd8, Ra8, Rh8, Bc8, Bf8, Nb8, Ng8, Pa7, Pb7, Pc7, Pd7, Pe7, Pf7, Pg7, Ph7
FEN: 5r1k/2p3p1/7p/p4N2/Pb1B1n2/3B1b2/1PP4P/R5K1 b - - 0 23
Answer:
|
White: Kg1, Ra1, Bd3, Bd4, Nf5, Pa4, Pb2, Pc2, Ph2
Black: Kh8, Rf8, Bb4, Bf3, Nf4, Pa5, Pc7, Pg7, Ph6
|
https://lichess.org/training/01EEp
|
[
{
"role": "user",
"content": "List all pieces and their positions from this FEN.\nFormat: \"White: pieces\" then \"Black: pieces\", sorted by piece value (K, Q, R, B, N, P).\n\nExample:\nFEN: rnbqkbnr/pppppppp/8/8/4P3/8/PPPP1PPP/RNBQKBNR b KQkq - 0 1\nAnswer:\nWhite: Ke1, Qd1, Ra1, Rh1, Bc1, Bf1, Nb1, Ng1, Pa2, Pb2, Pc2, Pd2, Pe4, Pf2, Pg2, Ph2\nBlack: Ke8, Qd8, Ra8, Rh8, Bc8, Bf8, Nb8, Ng8, Pa7, Pb7, Pc7, Pd7, Pe7, Pf7, Pg7, Ph7\n\nFEN: 5r1k/2p3p1/7p/p4N2/Pb1B1n2/3B1b2/1PP4P/R5K1 b - - 0 23\nAnswer:"
},
{
"role": "assistant",
"content": "White: Kg1, Ra1, Bd3, Bd4, Nf5, Pa4, Pb2, Pc2, Ph2\nBlack: Kh8, Rf8, Bb4, Bf3, Nf4, Pa5, Pc7, Pg7, Ph6"
}
] |
|
2r4k/q2b1Q1p/2p2P2/1p2p3/4P3/p2P3R/4N1rK/R7 w - - 0 38
|
legal_captures
|
List all legal captures in this position.
Respond with ONLY the captures in SAN notation, comma-separated. If no captures, respond "none".
Example:
FEN: r1bqkb1r/pppp1ppp/2n2n2/4p3/2B1P3/5N2/PPPP1PPP/RNBQK2R w KQkq - 4 4
Answer: Bxf7+
FEN: 2r4k/q2b1Q1p/2p2P2/1p2p3/4P3/p2P3R/4N1rK/R7 w - - 0 38
Answer:
|
Kxg2
|
https://lichess.org/training/00T4i
|
[
{
"role": "user",
"content": "List all legal captures in this position.\nRespond with ONLY the captures in SAN notation, comma-separated. If no captures, respond \"none\".\n\nExample:\nFEN: r1bqkb1r/pppp1ppp/2n2n2/4p3/2B1P3/5N2/PPPP1PPP/RNBQK2R w KQkq - 4 4\nAnswer: Bxf7+\n\nFEN: 2r4k/q2b1Q1p/2p2P2/1p2p3/4P3/p2P3R/4N1rK/R7 w - - 0 38\nAnswer:"
},
{
"role": "assistant",
"content": "Kxg2"
}
] |
|
8/5p2/6p1/1p1N1k2/1PbK4/2P3P1/8/8 b - - 0 48
|
piece_positions
|
List all pieces and their positions from this FEN.
Format: "White: pieces" then "Black: pieces", sorted by piece value (K, Q, R, B, N, P).
Example:
FEN: rnbqkbnr/pppppppp/8/8/4P3/8/PPPP1PPP/RNBQKBNR b KQkq - 0 1
Answer:
White: Ke1, Qd1, Ra1, Rh1, Bc1, Bf1, Nb1, Ng1, Pa2, Pb2, Pc2, Pd2, Pe4, Pf2, Pg2, Ph2
Black: Ke8, Qd8, Ra8, Rh8, Bc8, Bf8, Nb8, Ng8, Pa7, Pb7, Pc7, Pd7, Pe7, Pf7, Pg7, Ph7
FEN: 8/5p2/6p1/1p1N1k2/1PbK4/2P3P1/8/8 b - - 0 48
Answer:
|
White: Kd4, Nd5, Pb4, Pc3, Pg3
Black: Kf5, Bc4, Pb5, Pf7, Pg6
|
https://lichess.org/training/00cud
|
[
{
"role": "user",
"content": "List all pieces and their positions from this FEN.\nFormat: \"White: pieces\" then \"Black: pieces\", sorted by piece value (K, Q, R, B, N, P).\n\nExample:\nFEN: rnbqkbnr/pppppppp/8/8/4P3/8/PPPP1PPP/RNBQKBNR b KQkq - 0 1\nAnswer:\nWhite: Ke1, Qd1, Ra1, Rh1, Bc1, Bf1, Nb1, Ng1, Pa2, Pb2, Pc2, Pd2, Pe4, Pf2, Pg2, Ph2\nBlack: Ke8, Qd8, Ra8, Rh8, Bc8, Bf8, Nb8, Ng8, Pa7, Pb7, Pc7, Pd7, Pe7, Pf7, Pg7, Ph7\n\nFEN: 8/5p2/6p1/1p1N1k2/1PbK4/2P3P1/8/8 b - - 0 48\nAnswer:"
},
{
"role": "assistant",
"content": "White: Kd4, Nd5, Pb4, Pc3, Pg3\nBlack: Kf5, Bc4, Pb5, Pf7, Pg6"
}
] |
|
3r4/1p4p1/2pBkbBp/p1P5/3rp3/P7/1PK2P2/4R3 b - - 1 31
|
ascii_board
|
Generate an ASCII representation of this chess position.
Output ONLY the 8x8 grid. Use uppercase for White, lowercase for Black, dots for empty.
Example:
FEN: rnbqkbnr/pppppppp/8/8/4P3/8/PPPP1PPP/RNBQKBNR b KQkq - 0 1
Output:
r n b q k b n r
p p p p p p p p
. . . . . . . .
. . . . . . . .
. . . . P . . .
. . . . . . . .
P P P P . P P P
R N B Q K B N R
FEN: 3r4/1p4p1/2pBkbBp/p1P5/3rp3/P7/1PK2P2/4R3 b - - 1 31
Output:
|
. . . r . . . .
. p . . . . p .
. . p B k b B p
p . P . . . . .
. . . r p . . .
P . . . . . . .
. P K . . P . .
. . . . R . . .
|
https://lichess.org/training/00CWE
|
[
{
"role": "user",
"content": "Generate an ASCII representation of this chess position.\nOutput ONLY the 8x8 grid. Use uppercase for White, lowercase for Black, dots for empty.\n\nExample:\nFEN: rnbqkbnr/pppppppp/8/8/4P3/8/PPPP1PPP/RNBQKBNR b KQkq - 0 1\nOutput:\nr n b q k b n r\np p p p p p p p\n. . . . . . . .\n. . . . . . . .\n. . . . P . . .\n. . . . . . . .\nP P P P . P P P\nR N B Q K B N R\n\nFEN: 3r4/1p4p1/2pBkbBp/p1P5/3rp3/P7/1PK2P2/4R3 b - - 1 31\nOutput:"
},
{
"role": "assistant",
"content": ". . . r . . . .\n. p . . . . p .\n. . p B k b B p\np . P . . . . .\n. . . r p . . .\nP . . . . . . .\n. P K . . P . .\n. . . . R . . ."
}
] |
|
rn1qk2r/pb3ppp/5n2/2b5/7N/2N1p1P1/PP1PPP1P/R1BQKB1R w KQkq - 0 9
|
ascii_board
|
Generate an ASCII representation of this chess position.
Output ONLY the 8x8 grid. Use uppercase for White, lowercase for Black, dots for empty.
Example:
FEN: rnbqkbnr/pppppppp/8/8/4P3/8/PPPP1PPP/RNBQKBNR b KQkq - 0 1
Output:
r n b q k b n r
p p p p p p p p
. . . . . . . .
. . . . . . . .
. . . . P . . .
. . . . . . . .
P P P P . P P P
R N B Q K B N R
FEN: rn1qk2r/pb3ppp/5n2/2b5/7N/2N1p1P1/PP1PPP1P/R1BQKB1R w KQkq - 0 9
Output:
|
r n . q k . . r
p b . . . p p p
. . . . . n . .
. . b . . . . .
. . . . . . . N
. . N . p . P .
P P . P P P . P
R . B Q K B . R
|
https://lichess.org/training/00QBx
|
[
{
"role": "user",
"content": "Generate an ASCII representation of this chess position.\nOutput ONLY the 8x8 grid. Use uppercase for White, lowercase for Black, dots for empty.\n\nExample:\nFEN: rnbqkbnr/pppppppp/8/8/4P3/8/PPPP1PPP/RNBQKBNR b KQkq - 0 1\nOutput:\nr n b q k b n r\np p p p p p p p\n. . . . . . . .\n. . . . . . . .\n. . . . P . . .\n. . . . . . . .\nP P P P . P P P\nR N B Q K B N R\n\nFEN: rn1qk2r/pb3ppp/5n2/2b5/7N/2N1p1P1/PP1PPP1P/R1BQKB1R w KQkq - 0 9\nOutput:"
},
{
"role": "assistant",
"content": "r n . q k . . r\np b . . . p p p\n. . . . . n . .\n. . b . . . . .\n. . . . . . . N\n. . N . p . P .\nP P . P P P . P\nR . B Q K B . R"
}
] |
|
4r1k1/4rp2/2p4p/p2bNQp1/4P3/2P5/Pq3PPP/R3R1K1 w - - 1 26
|
puzzle
|
Find the best move for this chess puzzle. Respond with ONLY the move in UCI notation (e.g., e2e4).
Example 1:
FEN: 8/1r6/8/5k1p/2B4K/1P6/8/1R6 w - - 1 44
Answer: h4h5
Example 2:
FEN: 1r3rk1/pbp2p1p/1p4pb/3qp3/1n6/PP1PP1PP/NBPQ3K/R4RN1 w - - 2 18
Answer: a2b4
Now solve:
FEN: 4r1k1/4rp2/2p4p/p2bNQp1/4P3/2P5/Pq3PPP/R3R1K1 w - - 1 26
Answer:
|
e4d5
|
https://lichess.org/training/010hY
|
[
{
"role": "user",
"content": "Find the best move for this chess puzzle. Respond with ONLY the move in UCI notation (e.g., e2e4).\n\nExample 1:\nFEN: 8/1r6/8/5k1p/2B4K/1P6/8/1R6 w - - 1 44\nAnswer: h4h5\n\nExample 2:\nFEN: 1r3rk1/pbp2p1p/1p4pb/3qp3/1n6/PP1PP1PP/NBPQ3K/R4RN1 w - - 2 18\nAnswer: a2b4\n\nNow solve:\nFEN: 4r1k1/4rp2/2p4p/p2bNQp1/4P3/2P5/Pq3PPP/R3R1K1 w - - 1 26\nAnswer:"
},
{
"role": "assistant",
"content": "e4d5"
}
] |
|
2r2rQk/6pp/p6N/1p1p4/2pq4/P6P/1P3PP1/4R1K1 b - - 9 36
|
legal_captures
|
List all legal captures in this position.
Respond with ONLY the captures in SAN notation, comma-separated. If no captures, respond "none".
Example:
FEN: r1bqkb1r/pppp1ppp/2n2n2/4p3/2B1P3/5N2/PPPP1PPP/RNBQK2R w KQkq - 4 4
Answer: Bxf7+
FEN: 2r2rQk/6pp/p6N/1p1p4/2pq4/P6P/1P3PP1/4R1K1 b - - 9 36
Answer:
|
Rxg8
|
https://lichess.org/training/00Tmr
|
[
{
"role": "user",
"content": "List all legal captures in this position.\nRespond with ONLY the captures in SAN notation, comma-separated. If no captures, respond \"none\".\n\nExample:\nFEN: r1bqkb1r/pppp1ppp/2n2n2/4p3/2B1P3/5N2/PPPP1PPP/RNBQK2R w KQkq - 4 4\nAnswer: Bxf7+\n\nFEN: 2r2rQk/6pp/p6N/1p1p4/2pq4/P6P/1P3PP1/4R1K1 b - - 9 36\nAnswer:"
},
{
"role": "assistant",
"content": "Rxg8"
}
] |
|
6Q1/7K/2k5/3r4/8/8/8/8 w - - 5 82
|
piece_positions
|
List all pieces and their positions from this FEN.
Format: "White: pieces" then "Black: pieces", sorted by piece value (K, Q, R, B, N, P).
Example:
FEN: rnbqkbnr/pppppppp/8/8/4P3/8/PPPP1PPP/RNBQKBNR b KQkq - 0 1
Answer:
White: Ke1, Qd1, Ra1, Rh1, Bc1, Bf1, Nb1, Ng1, Pa2, Pb2, Pc2, Pd2, Pe4, Pf2, Pg2, Ph2
Black: Ke8, Qd8, Ra8, Rh8, Bc8, Bf8, Nb8, Ng8, Pa7, Pb7, Pc7, Pd7, Pe7, Pf7, Pg7, Ph7
FEN: 6Q1/7K/2k5/3r4/8/8/8/8 w - - 5 82
Answer:
|
White: Kh7, Qg8
Black: Kc6, Rd5
|
https://lichess.org/training/00XCT
|
[
{
"role": "user",
"content": "List all pieces and their positions from this FEN.\nFormat: \"White: pieces\" then \"Black: pieces\", sorted by piece value (K, Q, R, B, N, P).\n\nExample:\nFEN: rnbqkbnr/pppppppp/8/8/4P3/8/PPPP1PPP/RNBQKBNR b KQkq - 0 1\nAnswer:\nWhite: Ke1, Qd1, Ra1, Rh1, Bc1, Bf1, Nb1, Ng1, Pa2, Pb2, Pc2, Pd2, Pe4, Pf2, Pg2, Ph2\nBlack: Ke8, Qd8, Ra8, Rh8, Bc8, Bf8, Nb8, Ng8, Pa7, Pb7, Pc7, Pd7, Pe7, Pf7, Pg7, Ph7\n\nFEN: 6Q1/7K/2k5/3r4/8/8/8/8 w - - 5 82\nAnswer:"
},
{
"role": "assistant",
"content": "White: Kh7, Qg8\nBlack: Kc6, Rd5"
}
] |
|
r3k2r/ppp2p1p/2n1pp2/7q/2PN2b1/2BP1Pb1/PP2B1P1/R2Q1RK1 w kq - 1 16
|
ascii_board
|
Generate an ASCII representation of this chess position.
Output ONLY the 8x8 grid. Use uppercase for White, lowercase for Black, dots for empty.
Example:
FEN: rnbqkbnr/pppppppp/8/8/4P3/8/PPPP1PPP/RNBQKBNR b KQkq - 0 1
Output:
r n b q k b n r
p p p p p p p p
. . . . . . . .
. . . . . . . .
. . . . P . . .
. . . . . . . .
P P P P . P P P
R N B Q K B N R
FEN: r3k2r/ppp2p1p/2n1pp2/7q/2PN2b1/2BP1Pb1/PP2B1P1/R2Q1RK1 w kq - 1 16
Output:
|
r . . . k . . r
p p p . . p . p
. . n . p p . .
. . . . . . . q
. . P N . . b .
. . B P . P b .
P P . . B . P .
R . . Q . R K .
|
https://lichess.org/training/008cl
|
[
{
"role": "user",
"content": "Generate an ASCII representation of this chess position.\nOutput ONLY the 8x8 grid. Use uppercase for White, lowercase for Black, dots for empty.\n\nExample:\nFEN: rnbqkbnr/pppppppp/8/8/4P3/8/PPPP1PPP/RNBQKBNR b KQkq - 0 1\nOutput:\nr n b q k b n r\np p p p p p p p\n. . . . . . . .\n. . . . . . . .\n. . . . P . . .\n. . . . . . . .\nP P P P . P P P\nR N B Q K B N R\n\nFEN: r3k2r/ppp2p1p/2n1pp2/7q/2PN2b1/2BP1Pb1/PP2B1P1/R2Q1RK1 w kq - 1 16\nOutput:"
},
{
"role": "assistant",
"content": "r . . . k . . r\np p p . . p . p\n. . n . p p . .\n. . . . . . . q\n. . P N . . b .\n. . B P . P b .\nP P . . B . P .\nR . . Q . R K ."
}
] |
|
5k2/6pp/p1b3P1/2N2P1r/p7/8/1KP5/5R2 b - - 0 36
|
piece_captures
|
List all captures the piece on h5 can make.
Respond with ONLY the captures in SAN notation, comma-separated. If no captures, respond "none".
Example:
FEN: r1bqkb1r/pppp1ppp/2n2n2/4p3/2B1P3/5N2/PPPP1PPP/RNBQK2R w KQkq - 4 4
Piece on: c4
Answer: Bxf7+
FEN: 5k2/6pp/p1b3P1/2N2P1r/p7/8/1KP5/5R2 b - - 0 36
Piece on: h5
Answer:
|
Rxf5
|
https://lichess.org/training/00DcC
|
[
{
"role": "user",
"content": "List all captures the piece on h5 can make.\nRespond with ONLY the captures in SAN notation, comma-separated. If no captures, respond \"none\".\n\nExample:\nFEN: r1bqkb1r/pppp1ppp/2n2n2/4p3/2B1P3/5N2/PPPP1PPP/RNBQK2R w KQkq - 4 4\nPiece on: c4\nAnswer: Bxf7+\n\nFEN: 5k2/6pp/p1b3P1/2N2P1r/p7/8/1KP5/5R2 b - - 0 36\nPiece on: h5\nAnswer:"
},
{
"role": "assistant",
"content": "Rxf5"
}
] |
|
r1b3k1/pp3p1p/6q1/2pp1r2/8/P1P1PQ1P/1P3PP1/RN3R1K w - - 7 19
|
legal_moves
|
List all legal moves for the piece on e3 in this position.
Respond with ONLY the moves in SAN notation, comma-separated.
Example:
FEN: rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1
Piece on: b1
Answer: Na3, Nc3
FEN: r1b3k1/pp3p1p/6q1/2pp1r2/8/P1P1PQ1P/1P3PP1/RN3R1K w - - 7 19
Piece on: e3
Answer:
|
e4
|
https://lichess.org/training/00cSF
|
[
{
"role": "user",
"content": "List all legal moves for the piece on e3 in this position.\nRespond with ONLY the moves in SAN notation, comma-separated.\n\nExample:\nFEN: rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1\nPiece on: b1\nAnswer: Na3, Nc3\n\nFEN: r1b3k1/pp3p1p/6q1/2pp1r2/8/P1P1PQ1P/1P3PP1/RN3R1K w - - 7 19\nPiece on: e3\nAnswer:"
},
{
"role": "assistant",
"content": "e4"
}
] |
|
4B3/8/1p1k1p1p/5Pp1/p1P3P1/1nK4P/1P6/8 b - - 9 48
|
ascii_board
|
Generate an ASCII representation of this chess position.
Output ONLY the 8x8 grid. Use uppercase for White, lowercase for Black, dots for empty.
Example:
FEN: rnbqkbnr/pppppppp/8/8/4P3/8/PPPP1PPP/RNBQKBNR b KQkq - 0 1
Output:
r n b q k b n r
p p p p p p p p
. . . . . . . .
. . . . . . . .
. . . . P . . .
. . . . . . . .
P P P P . P P P
R N B Q K B N R
FEN: 4B3/8/1p1k1p1p/5Pp1/p1P3P1/1nK4P/1P6/8 b - - 9 48
Output:
|
. . . . B . . .
. . . . . . . .
. p . k . p . p
. . . . . P p .
p . P . . . P .
. n K . . . . P
. P . . . . . .
. . . . . . . .
|
https://lichess.org/training/00au3
|
[
{
"role": "user",
"content": "Generate an ASCII representation of this chess position.\nOutput ONLY the 8x8 grid. Use uppercase for White, lowercase for Black, dots for empty.\n\nExample:\nFEN: rnbqkbnr/pppppppp/8/8/4P3/8/PPPP1PPP/RNBQKBNR b KQkq - 0 1\nOutput:\nr n b q k b n r\np p p p p p p p\n. . . . . . . .\n. . . . . . . .\n. . . . P . . .\n. . . . . . . .\nP P P P . P P P\nR N B Q K B N R\n\nFEN: 4B3/8/1p1k1p1p/5Pp1/p1P3P1/1nK4P/1P6/8 b - - 9 48\nOutput:"
},
{
"role": "assistant",
"content": ". . . . B . . .\n. . . . . . . .\n. p . k . p . p\n. . . . . P p .\np . P . . . P .\n. n K . . . . P\n. P . . . . . .\n. . . . . . . ."
}
] |
|
r4rk1/pb2ppb1/1q6/6PQ/8/2NP1N2/PPnK1PP1/R6R b - - 1 16
|
legal_captures
|
List all legal captures in this position.
Respond with ONLY the captures in SAN notation, comma-separated. If no captures, respond "none".
Example:
FEN: r1bqkb1r/pppp1ppp/2n2n2/4p3/2B1P3/5N2/PPPP1PPP/RNBQK2R w KQkq - 4 4
Answer: Bxf7+
FEN: r4rk1/pb2ppb1/1q6/6PQ/8/2NP1N2/PPnK1PP1/R6R b - - 1 16
Answer:
|
Bxc3+, Bxf3, Qxf2+, Qxb2, Nxa1
|
https://lichess.org/training/00SfT
|
[
{
"role": "user",
"content": "List all legal captures in this position.\nRespond with ONLY the captures in SAN notation, comma-separated. If no captures, respond \"none\".\n\nExample:\nFEN: r1bqkb1r/pppp1ppp/2n2n2/4p3/2B1P3/5N2/PPPP1PPP/RNBQK2R w KQkq - 4 4\nAnswer: Bxf7+\n\nFEN: r4rk1/pb2ppb1/1q6/6PQ/8/2NP1N2/PPnK1PP1/R6R b - - 1 16\nAnswer:"
},
{
"role": "assistant",
"content": "Bxc3+, Bxf3, Qxf2+, Qxb2, Nxa1"
}
] |
|
2rr4/4kp2/p3p2q/1p3nNP/3PQP2/P1N5/1P3K2/6R1 b - - 0 34
|
legal_moves
|
List all legal moves for the piece on e7 in this position.
Respond with ONLY the moves in SAN notation, comma-separated.
Example:
FEN: rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1
Piece on: b1
Answer: Na3, Nc3
FEN: 2rr4/4kp2/p3p2q/1p3nNP/3PQP2/P1N5/1P3K2/6R1 b - - 0 34
Piece on: e7
Answer:
|
Kf8, Ke8, Kd7, Kf6, Kd6
|
https://lichess.org/training/00Ybq
|
[
{
"role": "user",
"content": "List all legal moves for the piece on e7 in this position.\nRespond with ONLY the moves in SAN notation, comma-separated.\n\nExample:\nFEN: rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1\nPiece on: b1\nAnswer: Na3, Nc3\n\nFEN: 2rr4/4kp2/p3p2q/1p3nNP/3PQP2/P1N5/1P3K2/6R1 b - - 0 34\nPiece on: e7\nAnswer:"
},
{
"role": "assistant",
"content": "Kf8, Ke8, Kd7, Kf6, Kd6"
}
] |
|
r3kb1r/ppp2pp1/3p4/1P2p3/2P3pn/2N1P2q/PB1P1P1N/R2Q1RK1 w kq - 0 15
|
legal_captures
|
List all legal captures in this position.
Respond with ONLY the captures in SAN notation, comma-separated. If no captures, respond "none".
Example:
FEN: r1bqkb1r/pppp1ppp/2n2n2/4p3/2B1P3/5N2/PPPP1PPP/RNBQK2R w KQkq - 4 4
Answer: Bxf7+
FEN: r3kb1r/ppp2pp1/3p4/1P2p3/2P3pn/2N1P2q/PB1P1P1N/R2Q1RK1 w kq - 0 15
Answer:
|
Nxg4, Qxg4
|
https://lichess.org/training/00Zit
|
[
{
"role": "user",
"content": "List all legal captures in this position.\nRespond with ONLY the captures in SAN notation, comma-separated. If no captures, respond \"none\".\n\nExample:\nFEN: r1bqkb1r/pppp1ppp/2n2n2/4p3/2B1P3/5N2/PPPP1PPP/RNBQK2R w KQkq - 4 4\nAnswer: Bxf7+\n\nFEN: r3kb1r/ppp2pp1/3p4/1P2p3/2P3pn/2N1P2q/PB1P1P1N/R2Q1RK1 w kq - 0 15\nAnswer:"
},
{
"role": "assistant",
"content": "Nxg4, Qxg4"
}
] |
|
8/8/8/p4R1p/2p1k3/P4R1P/1P2q1P1/7K w - - 4 38
|
piece_captures
|
List all captures the piece on f5 can make.
Respond with ONLY the captures in SAN notation, comma-separated. If no captures, respond "none".
Example:
FEN: r1bqkb1r/pppp1ppp/2n2n2/4p3/2B1P3/5N2/PPPP1PPP/RNBQK2R w KQkq - 4 4
Piece on: c4
Answer: Bxf7+
FEN: 8/8/8/p4R1p/2p1k3/P4R1P/1P2q1P1/7K w - - 4 38
Piece on: f5
Answer:
|
Rxh5, Rxa5
|
https://lichess.org/training/01EDR
|
[
{
"role": "user",
"content": "List all captures the piece on f5 can make.\nRespond with ONLY the captures in SAN notation, comma-separated. If no captures, respond \"none\".\n\nExample:\nFEN: r1bqkb1r/pppp1ppp/2n2n2/4p3/2B1P3/5N2/PPPP1PPP/RNBQK2R w KQkq - 4 4\nPiece on: c4\nAnswer: Bxf7+\n\nFEN: 8/8/8/p4R1p/2p1k3/P4R1P/1P2q1P1/7K w - - 4 38\nPiece on: f5\nAnswer:"
},
{
"role": "assistant",
"content": "Rxh5, Rxa5"
}
] |
|
4r1k1/p4pp1/7p/4P3/P2pB3/4n2P/1r4P1/2R1R2K b - - 0 29
|
puzzle
|
Find the best move for this chess puzzle. Respond with ONLY the move in UCI notation (e.g., e2e4).
Example 1:
FEN: 8/1r6/8/5k1p/2B4K/1P6/8/1R6 w - - 1 44
Answer: h4h5
Example 2:
FEN: 1r3rk1/pbp2p1p/1p4pb/3qp3/1n6/PP1PP1PP/NBPQ3K/R4RN1 w - - 2 18
Answer: a2b4
Now solve:
FEN: 4r1k1/p4pp1/7p/4P3/P2pB3/4n2P/1r4P1/2R1R2K b - - 0 29
Answer:
|
e8e5
|
https://lichess.org/training/01Md6
|
[
{
"role": "user",
"content": "Find the best move for this chess puzzle. Respond with ONLY the move in UCI notation (e.g., e2e4).\n\nExample 1:\nFEN: 8/1r6/8/5k1p/2B4K/1P6/8/1R6 w - - 1 44\nAnswer: h4h5\n\nExample 2:\nFEN: 1r3rk1/pbp2p1p/1p4pb/3qp3/1n6/PP1PP1PP/NBPQ3K/R4RN1 w - - 2 18\nAnswer: a2b4\n\nNow solve:\nFEN: 4r1k1/p4pp1/7p/4P3/P2pB3/4n2P/1r4P1/2R1R2K b - - 0 29\nAnswer:"
},
{
"role": "assistant",
"content": "e8e5"
}
] |
|
2r3k1/5pp1/2P4p/2R5/1r6/6P1/p4P1P/2R3K1 w - - 2 32
|
legal_moves
|
List all legal moves for the piece on c5 in this position.
Respond with ONLY the moves in SAN notation, comma-separated.
Example:
FEN: rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1
Piece on: b1
Answer: Na3, Nc3
FEN: 2r3k1/5pp1/2P4p/2R5/1r6/6P1/p4P1P/2R3K1 w - - 2 32
Piece on: c5
Answer:
|
Rh5, Rg5, Rf5, Re5, Rd5, Rb5, Ra5, R5c4, R5c3, R5c2
|
https://lichess.org/training/01Lmi
|
[
{
"role": "user",
"content": "List all legal moves for the piece on c5 in this position.\nRespond with ONLY the moves in SAN notation, comma-separated.\n\nExample:\nFEN: rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1\nPiece on: b1\nAnswer: Na3, Nc3\n\nFEN: 2r3k1/5pp1/2P4p/2R5/1r6/6P1/p4P1P/2R3K1 w - - 2 32\nPiece on: c5\nAnswer:"
},
{
"role": "assistant",
"content": "Rh5, Rg5, Rf5, Re5, Rd5, Rb5, Ra5, R5c4, R5c3, R5c2"
}
] |
|
r4rk1/6pp/1p1Bp3/p7/P1PP4/4nqP1/2QR3P/4R1K1 w - - 1 25
|
legal_moves
|
List all legal moves for the piece on e1 in this position.
Respond with ONLY the moves in SAN notation, comma-separated.
Example:
FEN: rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1
Piece on: b1
Answer: Na3, Nc3
FEN: r4rk1/6pp/1p1Bp3/p7/P1PP4/4nqP1/2QR3P/4R1K1 w - - 1 25
Piece on: e1
Answer:
|
Rxe3, Ree2, Rf1, Red1, Rc1, Rb1, Ra1
|
https://lichess.org/training/00Tya
|
[
{
"role": "user",
"content": "List all legal moves for the piece on e1 in this position.\nRespond with ONLY the moves in SAN notation, comma-separated.\n\nExample:\nFEN: rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1\nPiece on: b1\nAnswer: Na3, Nc3\n\nFEN: r4rk1/6pp/1p1Bp3/p7/P1PP4/4nqP1/2QR3P/4R1K1 w - - 1 25\nPiece on: e1\nAnswer:"
},
{
"role": "assistant",
"content": "Rxe3, Ree2, Rf1, Red1, Rc1, Rb1, Ra1"
}
] |
|
2r2rk1/pbb1qp1p/1pn1p1p1/8/1P1PN3/P2BP2R/2Q1N1PP/5RK1 b - - 3 20
|
puzzle
|
Find the best move for this chess puzzle. Respond with ONLY the move in UCI notation (e.g., e2e4).
Example 1:
FEN: 8/1r6/8/5k1p/2B4K/1P6/8/1R6 w - - 1 44
Answer: h4h5
Example 2:
FEN: 1r3rk1/pbp2p1p/1p4pb/3qp3/1n6/PP1PP1PP/NBPQ3K/R4RN1 w - - 2 18
Answer: a2b4
Now solve:
FEN: 2r2rk1/pbb1qp1p/1pn1p1p1/8/1P1PN3/P2BP2R/2Q1N1PP/5RK1 b - - 3 20
Answer:
|
c6b8
|
https://lichess.org/training/01GKn
|
[
{
"role": "user",
"content": "Find the best move for this chess puzzle. Respond with ONLY the move in UCI notation (e.g., e2e4).\n\nExample 1:\nFEN: 8/1r6/8/5k1p/2B4K/1P6/8/1R6 w - - 1 44\nAnswer: h4h5\n\nExample 2:\nFEN: 1r3rk1/pbp2p1p/1p4pb/3qp3/1n6/PP1PP1PP/NBPQ3K/R4RN1 w - - 2 18\nAnswer: a2b4\n\nNow solve:\nFEN: 2r2rk1/pbb1qp1p/1pn1p1p1/8/1P1PN3/P2BP2R/2Q1N1PP/5RK1 b - - 3 20\nAnswer:"
},
{
"role": "assistant",
"content": "c6b8"
}
] |
|
1r3rk1/1pq2pbp/p1p1pnp1/2N1N3/3P4/1QP5/PP3PPP/3RR1K1 w - - 2 19
|
piece_captures
|
List all captures the piece on e5 can make.
Respond with ONLY the captures in SAN notation, comma-separated. If no captures, respond "none".
Example:
FEN: r1bqkb1r/pppp1ppp/2n2n2/4p3/2B1P3/5N2/PPPP1PPP/RNBQK2R w KQkq - 4 4
Piece on: c4
Answer: Bxf7+
FEN: 1r3rk1/1pq2pbp/p1p1pnp1/2N1N3/3P4/1QP5/PP3PPP/3RR1K1 w - - 2 19
Piece on: e5
Answer:
|
Nxf7, Nxg6, Nxc6
|
https://lichess.org/training/009Wc
|
[
{
"role": "user",
"content": "List all captures the piece on e5 can make.\nRespond with ONLY the captures in SAN notation, comma-separated. If no captures, respond \"none\".\n\nExample:\nFEN: r1bqkb1r/pppp1ppp/2n2n2/4p3/2B1P3/5N2/PPPP1PPP/RNBQK2R w KQkq - 4 4\nPiece on: c4\nAnswer: Bxf7+\n\nFEN: 1r3rk1/1pq2pbp/p1p1pnp1/2N1N3/3P4/1QP5/PP3PPP/3RR1K1 w - - 2 19\nPiece on: e5\nAnswer:"
},
{
"role": "assistant",
"content": "Nxf7, Nxg6, Nxc6"
}
] |
|
5rk1/ppq3pR/4p1r1/3p4/8/2P4Q/PP3RPP/6K1 b - - 0 22
|
legal_moves
|
List all legal moves for the piece on f8 in this position.
Respond with ONLY the moves in SAN notation, comma-separated.
Example:
FEN: rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1
Piece on: b1
Answer: Na3, Nc3
FEN: 5rk1/ppq3pR/4p1r1/3p4/8/2P4Q/PP3RPP/6K1 b - - 0 22
Piece on: f8
Answer:
|
Re8, Rd8, Rc8, Rb8, Ra8, Rf7, Rff6, Rf5, Rf4, Rf3, Rxf2
|
https://lichess.org/training/00JO7
|
[
{
"role": "user",
"content": "List all legal moves for the piece on f8 in this position.\nRespond with ONLY the moves in SAN notation, comma-separated.\n\nExample:\nFEN: rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1\nPiece on: b1\nAnswer: Na3, Nc3\n\nFEN: 5rk1/ppq3pR/4p1r1/3p4/8/2P4Q/PP3RPP/6K1 b - - 0 22\nPiece on: f8\nAnswer:"
},
{
"role": "assistant",
"content": "Re8, Rd8, Rc8, Rb8, Ra8, Rf7, Rff6, Rf5, Rf4, Rf3, Rxf2"
}
] |
|
2k2r1r/1pq2p2/p1p1p3/2NpP2p/3P1RpP/6P1/PPPQ2P1/2K5 b - - 4 27
|
legal_moves
|
List all legal moves for the piece on c8 in this position.
Respond with ONLY the moves in SAN notation, comma-separated.
Example:
FEN: rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1
Piece on: b1
Answer: Na3, Nc3
FEN: 2k2r1r/1pq2p2/p1p1p3/2NpP2p/3P1RpP/6P1/PPPQ2P1/2K5 b - - 4 27
Piece on: c8
Answer:
|
Kd8, Kb8
|
https://lichess.org/training/01PI9
|
[
{
"role": "user",
"content": "List all legal moves for the piece on c8 in this position.\nRespond with ONLY the moves in SAN notation, comma-separated.\n\nExample:\nFEN: rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1\nPiece on: b1\nAnswer: Na3, Nc3\n\nFEN: 2k2r1r/1pq2p2/p1p1p3/2NpP2p/3P1RpP/6P1/PPPQ2P1/2K5 b - - 4 27\nPiece on: c8\nAnswer:"
},
{
"role": "assistant",
"content": "Kd8, Kb8"
}
] |
|
rn3k1r/pp2p2p/2p2np1/8/2B5/4q3/PQP3PP/RN3K1R b - - 3 14
|
legal_moves
|
List all legal moves for the piece on g6 in this position.
Respond with ONLY the moves in SAN notation, comma-separated.
Example:
FEN: rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1
Piece on: b1
Answer: Na3, Nc3
FEN: rn3k1r/pp2p2p/2p2np1/8/2B5/4q3/PQP3PP/RN3K1R b - - 3 14
Piece on: g6
Answer:
|
g5
|
https://lichess.org/training/00zxV
|
[
{
"role": "user",
"content": "List all legal moves for the piece on g6 in this position.\nRespond with ONLY the moves in SAN notation, comma-separated.\n\nExample:\nFEN: rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1\nPiece on: b1\nAnswer: Na3, Nc3\n\nFEN: rn3k1r/pp2p2p/2p2np1/8/2B5/4q3/PQP3PP/RN3K1R b - - 3 14\nPiece on: g6\nAnswer:"
},
{
"role": "assistant",
"content": "g5"
}
] |
|
r1b2rk1/p2n2bp/4pqp1/2pp4/5PPP/2N1B3/PPPQ4/2KR1B1R w - - 0 16
|
ascii_board
|
Generate an ASCII representation of this chess position.
Output ONLY the 8x8 grid. Use uppercase for White, lowercase for Black, dots for empty.
Example:
FEN: rnbqkbnr/pppppppp/8/8/4P3/8/PPPP1PPP/RNBQKBNR b KQkq - 0 1
Output:
r n b q k b n r
p p p p p p p p
. . . . . . . .
. . . . . . . .
. . . . P . . .
. . . . . . . .
P P P P . P P P
R N B Q K B N R
FEN: r1b2rk1/p2n2bp/4pqp1/2pp4/5PPP/2N1B3/PPPQ4/2KR1B1R w - - 0 16
Output:
|
r . b . . r k .
p . . n . . b p
. . . . p q p .
. . p p . . . .
. . . . . P P P
. . N . B . . .
P P P Q . . . .
. . K R . B . R
|
https://lichess.org/training/019Z4
|
[
{
"role": "user",
"content": "Generate an ASCII representation of this chess position.\nOutput ONLY the 8x8 grid. Use uppercase for White, lowercase for Black, dots for empty.\n\nExample:\nFEN: rnbqkbnr/pppppppp/8/8/4P3/8/PPPP1PPP/RNBQKBNR b KQkq - 0 1\nOutput:\nr n b q k b n r\np p p p p p p p\n. . . . . . . .\n. . . . . . . .\n. . . . P . . .\n. . . . . . . .\nP P P P . P P P\nR N B Q K B N R\n\nFEN: r1b2rk1/p2n2bp/4pqp1/2pp4/5PPP/2N1B3/PPPQ4/2KR1B1R w - - 0 16\nOutput:"
},
{
"role": "assistant",
"content": "r . b . . r k .\np . . n . . b p\n. . . . p q p .\n. . p p . . . .\n. . . . . P P P\n. . N . B . . .\nP P P Q . . . .\n. . K R . B . R"
}
] |
|
8/3P4/8/1kP2pbP/8/5K2/8/8 b - - 0 51
|
legal_moves
|
List all legal moves for the piece on f5 in this position.
Respond with ONLY the moves in SAN notation, comma-separated.
Example:
FEN: rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1
Piece on: b1
Answer: Na3, Nc3
FEN: 8/3P4/8/1kP2pbP/8/5K2/8/8 b - - 0 51
Piece on: f5
Answer:
|
f4
|
https://lichess.org/training/018Iz
|
[
{
"role": "user",
"content": "List all legal moves for the piece on f5 in this position.\nRespond with ONLY the moves in SAN notation, comma-separated.\n\nExample:\nFEN: rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1\nPiece on: b1\nAnswer: Na3, Nc3\n\nFEN: 8/3P4/8/1kP2pbP/8/5K2/8/8 b - - 0 51\nPiece on: f5\nAnswer:"
},
{
"role": "assistant",
"content": "f4"
}
] |
|
1R6/6kp/3p1pp1/2r1p3/P7/1P6/2r2PPP/1R4K1 w - - 4 30
|
piece_positions
|
List all pieces and their positions from this FEN.
Format: "White: pieces" then "Black: pieces", sorted by piece value (K, Q, R, B, N, P).
Example:
FEN: rnbqkbnr/pppppppp/8/8/4P3/8/PPPP1PPP/RNBQKBNR b KQkq - 0 1
Answer:
White: Ke1, Qd1, Ra1, Rh1, Bc1, Bf1, Nb1, Ng1, Pa2, Pb2, Pc2, Pd2, Pe4, Pf2, Pg2, Ph2
Black: Ke8, Qd8, Ra8, Rh8, Bc8, Bf8, Nb8, Ng8, Pa7, Pb7, Pc7, Pd7, Pe7, Pf7, Pg7, Ph7
FEN: 1R6/6kp/3p1pp1/2r1p3/P7/1P6/2r2PPP/1R4K1 w - - 4 30
Answer:
|
White: Kg1, Rb1, Rb8, Pa4, Pb3, Pf2, Pg2, Ph2
Black: Kg7, Rc2, Rc5, Pd6, Pe5, Pf6, Pg6, Ph7
|
https://lichess.org/training/00DYf
|
[
{
"role": "user",
"content": "List all pieces and their positions from this FEN.\nFormat: \"White: pieces\" then \"Black: pieces\", sorted by piece value (K, Q, R, B, N, P).\n\nExample:\nFEN: rnbqkbnr/pppppppp/8/8/4P3/8/PPPP1PPP/RNBQKBNR b KQkq - 0 1\nAnswer:\nWhite: Ke1, Qd1, Ra1, Rh1, Bc1, Bf1, Nb1, Ng1, Pa2, Pb2, Pc2, Pd2, Pe4, Pf2, Pg2, Ph2\nBlack: Ke8, Qd8, Ra8, Rh8, Bc8, Bf8, Nb8, Ng8, Pa7, Pb7, Pc7, Pd7, Pe7, Pf7, Pg7, Ph7\n\nFEN: 1R6/6kp/3p1pp1/2r1p3/P7/1P6/2r2PPP/1R4K1 w - - 4 30\nAnswer:"
},
{
"role": "assistant",
"content": "White: Kg1, Rb1, Rb8, Pa4, Pb3, Pf2, Pg2, Ph2\nBlack: Kg7, Rc2, Rc5, Pd6, Pe5, Pf6, Pg6, Ph7"
}
] |
|
r2q1k1r/pbp1bppp/1p2pn2/1B2N3/3P1Q2/8/PPP2PPP/R1B2RK1 b - - 5 12
|
legal_moves
|
List all legal moves for the piece on d8 in this position.
Respond with ONLY the moves in SAN notation, comma-separated.
Example:
FEN: rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1
Piece on: b1
Answer: Na3, Nc3
FEN: r2q1k1r/pbp1bppp/1p2pn2/1B2N3/3P1Q2/8/PPP2PPP/R1B2RK1 b - - 5 12
Piece on: d8
Answer:
|
Qe8, Qc8, Qb8, Qd7, Qd6, Qd5, Qxd4
|
https://lichess.org/training/00dOP
|
[
{
"role": "user",
"content": "List all legal moves for the piece on d8 in this position.\nRespond with ONLY the moves in SAN notation, comma-separated.\n\nExample:\nFEN: rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1\nPiece on: b1\nAnswer: Na3, Nc3\n\nFEN: r2q1k1r/pbp1bppp/1p2pn2/1B2N3/3P1Q2/8/PPP2PPP/R1B2RK1 b - - 5 12\nPiece on: d8\nAnswer:"
},
{
"role": "assistant",
"content": "Qe8, Qc8, Qb8, Qd7, Qd6, Qd5, Qxd4"
}
] |
|
3r4/1p2R1k1/7p/P4rpB/8/2n3P1/1q4PP/3R2K1 b - - 1 32
|
puzzle
|
Find the best move for this chess puzzle. Respond with ONLY the move in UCI notation (e.g., e2e4).
Example 1:
FEN: 8/1r6/8/5k1p/2B4K/1P6/8/1R6 w - - 1 44
Answer: h4h5
Example 2:
FEN: 1r3rk1/pbp2p1p/1p4pb/3qp3/1n6/PP1PP1PP/NBPQ3K/R4RN1 w - - 2 18
Answer: a2b4
Now solve:
FEN: 3r4/1p2R1k1/7p/P4rpB/8/2n3P1/1q4PP/3R2K1 b - - 1 32
Answer:
|
g7g8
|
https://lichess.org/training/00u0R
|
[
{
"role": "user",
"content": "Find the best move for this chess puzzle. Respond with ONLY the move in UCI notation (e.g., e2e4).\n\nExample 1:\nFEN: 8/1r6/8/5k1p/2B4K/1P6/8/1R6 w - - 1 44\nAnswer: h4h5\n\nExample 2:\nFEN: 1r3rk1/pbp2p1p/1p4pb/3qp3/1n6/PP1PP1PP/NBPQ3K/R4RN1 w - - 2 18\nAnswer: a2b4\n\nNow solve:\nFEN: 3r4/1p2R1k1/7p/P4rpB/8/2n3P1/1q4PP/3R2K1 b - - 1 32\nAnswer:"
},
{
"role": "assistant",
"content": "g7g8"
}
] |
|
1k1r4/ppp3p1/8/1P5p/8/P3n2P/2P1r1P1/B3NRK1 b - - 4 31
|
legal_captures
|
List all legal captures in this position.
Respond with ONLY the captures in SAN notation, comma-separated. If no captures, respond "none".
Example:
FEN: r1bqkb1r/pppp1ppp/2n2n2/4p3/2B1P3/5N2/PPPP1PPP/RNBQK2R w KQkq - 4 4
Answer: Bxf7+
FEN: 1k1r4/ppp3p1/8/1P5p/8/P3n2P/2P1r1P1/B3NRK1 b - - 4 31
Answer:
|
Nxg2, Nxc2, Nxf1, Rxg2+, Rxc2, Rxe1
|
https://lichess.org/training/008GK
|
[
{
"role": "user",
"content": "List all legal captures in this position.\nRespond with ONLY the captures in SAN notation, comma-separated. If no captures, respond \"none\".\n\nExample:\nFEN: r1bqkb1r/pppp1ppp/2n2n2/4p3/2B1P3/5N2/PPPP1PPP/RNBQK2R w KQkq - 4 4\nAnswer: Bxf7+\n\nFEN: 1k1r4/ppp3p1/8/1P5p/8/P3n2P/2P1r1P1/B3NRK1 b - - 4 31\nAnswer:"
},
{
"role": "assistant",
"content": "Nxg2, Nxc2, Nxf1, Rxg2+, Rxc2, Rxe1"
}
] |
|
8/8/8/4p3/4Nk1p/1R3P1P/6PK/r3b3 w - - 14 48
|
piece_positions
|
List all pieces and their positions from this FEN.
Format: "White: pieces" then "Black: pieces", sorted by piece value (K, Q, R, B, N, P).
Example:
FEN: rnbqkbnr/pppppppp/8/8/4P3/8/PPPP1PPP/RNBQKBNR b KQkq - 0 1
Answer:
White: Ke1, Qd1, Ra1, Rh1, Bc1, Bf1, Nb1, Ng1, Pa2, Pb2, Pc2, Pd2, Pe4, Pf2, Pg2, Ph2
Black: Ke8, Qd8, Ra8, Rh8, Bc8, Bf8, Nb8, Ng8, Pa7, Pb7, Pc7, Pd7, Pe7, Pf7, Pg7, Ph7
FEN: 8/8/8/4p3/4Nk1p/1R3P1P/6PK/r3b3 w - - 14 48
Answer:
|
White: Kh2, Rb3, Ne4, Pf3, Pg2, Ph3
Black: Kf4, Ra1, Be1, Pe5, Ph4
|
https://lichess.org/training/00ocD
|
[
{
"role": "user",
"content": "List all pieces and their positions from this FEN.\nFormat: \"White: pieces\" then \"Black: pieces\", sorted by piece value (K, Q, R, B, N, P).\n\nExample:\nFEN: rnbqkbnr/pppppppp/8/8/4P3/8/PPPP1PPP/RNBQKBNR b KQkq - 0 1\nAnswer:\nWhite: Ke1, Qd1, Ra1, Rh1, Bc1, Bf1, Nb1, Ng1, Pa2, Pb2, Pc2, Pd2, Pe4, Pf2, Pg2, Ph2\nBlack: Ke8, Qd8, Ra8, Rh8, Bc8, Bf8, Nb8, Ng8, Pa7, Pb7, Pc7, Pd7, Pe7, Pf7, Pg7, Ph7\n\nFEN: 8/8/8/4p3/4Nk1p/1R3P1P/6PK/r3b3 w - - 14 48\nAnswer:"
},
{
"role": "assistant",
"content": "White: Kh2, Rb3, Ne4, Pf3, Pg2, Ph3\nBlack: Kf4, Ra1, Be1, Pe5, Ph4"
}
] |
|
2r5/3k1p2/5Pp1/PP1pP1P1/1K1B3P/5p2/8/8 w - - 1 45
|
legal_moves
|
List all legal moves for the piece on d4 in this position.
Respond with ONLY the moves in SAN notation, comma-separated.
Example:
FEN: rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1
Piece on: b1
Answer: Na3, Nc3
FEN: 2r5/3k1p2/5Pp1/PP1pP1P1/1K1B3P/5p2/8/8 w - - 1 45
Piece on: d4
Answer:
|
Ba7, Bb6, Bc5, Be3, Bc3, Bf2, Bb2, Bg1, Ba1
|
https://lichess.org/training/00uDH
|
[
{
"role": "user",
"content": "List all legal moves for the piece on d4 in this position.\nRespond with ONLY the moves in SAN notation, comma-separated.\n\nExample:\nFEN: rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1\nPiece on: b1\nAnswer: Na3, Nc3\n\nFEN: 2r5/3k1p2/5Pp1/PP1pP1P1/1K1B3P/5p2/8/8 w - - 1 45\nPiece on: d4\nAnswer:"
},
{
"role": "assistant",
"content": "Ba7, Bb6, Bc5, Be3, Bc3, Bf2, Bb2, Bg1, Ba1"
}
] |
|
r3kb1r/p4pp1/b1p4p/n3p3/4N3/2Nq1Q2/PP1P1PPP/R1B2RK1 w kq - 0 14
|
piece_positions
|
List all pieces and their positions from this FEN.
Format: "White: pieces" then "Black: pieces", sorted by piece value (K, Q, R, B, N, P).
Example:
FEN: rnbqkbnr/pppppppp/8/8/4P3/8/PPPP1PPP/RNBQKBNR b KQkq - 0 1
Answer:
White: Ke1, Qd1, Ra1, Rh1, Bc1, Bf1, Nb1, Ng1, Pa2, Pb2, Pc2, Pd2, Pe4, Pf2, Pg2, Ph2
Black: Ke8, Qd8, Ra8, Rh8, Bc8, Bf8, Nb8, Ng8, Pa7, Pb7, Pc7, Pd7, Pe7, Pf7, Pg7, Ph7
FEN: r3kb1r/p4pp1/b1p4p/n3p3/4N3/2Nq1Q2/PP1P1PPP/R1B2RK1 w kq - 0 14
Answer:
|
White: Kg1, Qf3, Ra1, Rf1, Bc1, Nc3, Ne4, Pa2, Pb2, Pd2, Pf2, Pg2, Ph2
Black: Ke8, Qd3, Ra8, Rh8, Ba6, Bf8, Na5, Pa7, Pc6, Pe5, Pf7, Pg7, Ph6
|
https://lichess.org/training/00Dlt
|
[
{
"role": "user",
"content": "List all pieces and their positions from this FEN.\nFormat: \"White: pieces\" then \"Black: pieces\", sorted by piece value (K, Q, R, B, N, P).\n\nExample:\nFEN: rnbqkbnr/pppppppp/8/8/4P3/8/PPPP1PPP/RNBQKBNR b KQkq - 0 1\nAnswer:\nWhite: Ke1, Qd1, Ra1, Rh1, Bc1, Bf1, Nb1, Ng1, Pa2, Pb2, Pc2, Pd2, Pe4, Pf2, Pg2, Ph2\nBlack: Ke8, Qd8, Ra8, Rh8, Bc8, Bf8, Nb8, Ng8, Pa7, Pb7, Pc7, Pd7, Pe7, Pf7, Pg7, Ph7\n\nFEN: r3kb1r/p4pp1/b1p4p/n3p3/4N3/2Nq1Q2/PP1P1PPP/R1B2RK1 w kq - 0 14\nAnswer:"
},
{
"role": "assistant",
"content": "White: Kg1, Qf3, Ra1, Rf1, Bc1, Nc3, Ne4, Pa2, Pb2, Pd2, Pf2, Pg2, Ph2\nBlack: Ke8, Qd3, Ra8, Rh8, Ba6, Bf8, Na5, Pa7, Pc6, Pe5, Pf7, Pg7, Ph6"
}
] |
|
2rq1k2/5ppp/p7/1p6/5Q2/2P5/P1P2PPP/4RK2 b - - 7 22
|
legal_moves
|
List all legal moves for the piece on f8 in this position.
Respond with ONLY the moves in SAN notation, comma-separated.
Example:
FEN: rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1
Piece on: b1
Answer: Na3, Nc3
FEN: 2rq1k2/5ppp/p7/1p6/5Q2/2P5/P1P2PPP/4RK2 b - - 7 22
Piece on: f8
Answer:
|
Kg8
|
https://lichess.org/training/00tsE
|
[
{
"role": "user",
"content": "List all legal moves for the piece on f8 in this position.\nRespond with ONLY the moves in SAN notation, comma-separated.\n\nExample:\nFEN: rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1\nPiece on: b1\nAnswer: Na3, Nc3\n\nFEN: 2rq1k2/5ppp/p7/1p6/5Q2/2P5/P1P2PPP/4RK2 b - - 7 22\nPiece on: f8\nAnswer:"
},
{
"role": "assistant",
"content": "Kg8"
}
] |
|
8/8/3p1k1p/3Pqpp1/2Q5/6PP/5P1K/8 w - - 3 34
|
puzzle
|
Find the best move for this chess puzzle. Respond with ONLY the move in UCI notation (e.g., e2e4).
Example 1:
FEN: 8/1r6/8/5k1p/2B4K/1P6/8/1R6 w - - 1 44
Answer: h4h5
Example 2:
FEN: 1r3rk1/pbp2p1p/1p4pb/3qp3/1n6/PP1PP1PP/NBPQ3K/R4RN1 w - - 2 18
Answer: a2b4
Now solve:
FEN: 8/8/3p1k1p/3Pqpp1/2Q5/6PP/5P1K/8 w - - 3 34
Answer:
|
h2g2
|
https://lichess.org/training/0164A
|
[
{
"role": "user",
"content": "Find the best move for this chess puzzle. Respond with ONLY the move in UCI notation (e.g., e2e4).\n\nExample 1:\nFEN: 8/1r6/8/5k1p/2B4K/1P6/8/1R6 w - - 1 44\nAnswer: h4h5\n\nExample 2:\nFEN: 1r3rk1/pbp2p1p/1p4pb/3qp3/1n6/PP1PP1PP/NBPQ3K/R4RN1 w - - 2 18\nAnswer: a2b4\n\nNow solve:\nFEN: 8/8/3p1k1p/3Pqpp1/2Q5/6PP/5P1K/8 w - - 3 34\nAnswer:"
},
{
"role": "assistant",
"content": "h2g2"
}
] |
|
8/8/1p1P1k1K/1p6/pP6/P7/8/8 w - - 0 42
|
ascii_board
|
Generate an ASCII representation of this chess position.
Output ONLY the 8x8 grid. Use uppercase for White, lowercase for Black, dots for empty.
Example:
FEN: rnbqkbnr/pppppppp/8/8/4P3/8/PPPP1PPP/RNBQKBNR b KQkq - 0 1
Output:
r n b q k b n r
p p p p p p p p
. . . . . . . .
. . . . . . . .
. . . . P . . .
. . . . . . . .
P P P P . P P P
R N B Q K B N R
FEN: 8/8/1p1P1k1K/1p6/pP6/P7/8/8 w - - 0 42
Output:
|
. . . . . . . .
. . . . . . . .
. p . P . k . K
. p . . . . . .
p P . . . . . .
P . . . . . . .
. . . . . . . .
. . . . . . . .
|
https://lichess.org/training/01HXY
|
[
{
"role": "user",
"content": "Generate an ASCII representation of this chess position.\nOutput ONLY the 8x8 grid. Use uppercase for White, lowercase for Black, dots for empty.\n\nExample:\nFEN: rnbqkbnr/pppppppp/8/8/4P3/8/PPPP1PPP/RNBQKBNR b KQkq - 0 1\nOutput:\nr n b q k b n r\np p p p p p p p\n. . . . . . . .\n. . . . . . . .\n. . . . P . . .\n. . . . . . . .\nP P P P . P P P\nR N B Q K B N R\n\nFEN: 8/8/1p1P1k1K/1p6/pP6/P7/8/8 w - - 0 42\nOutput:"
},
{
"role": "assistant",
"content": ". . . . . . . .\n. . . . . . . .\n. p . P . k . K\n. p . . . . . .\np P . . . . . .\nP . . . . . . .\n. . . . . . . .\n. . . . . . . ."
}
] |
|
5rk1/1p2p1rp/p2p4/2pPb2R/2P1P3/1P1BKP1R/8/8 b - - 4 30
|
legal_moves
|
List all legal moves for the piece on g8 in this position.
Respond with ONLY the moves in SAN notation, comma-separated.
Example:
FEN: rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1
Piece on: b1
Answer: Na3, Nc3
FEN: 5rk1/1p2p1rp/p2p4/2pPb2R/2P1P3/1P1BKP1R/8/8 b - - 4 30
Piece on: g8
Answer:
|
Kh8, Kf7
|
https://lichess.org/training/0050w
|
[
{
"role": "user",
"content": "List all legal moves for the piece on g8 in this position.\nRespond with ONLY the moves in SAN notation, comma-separated.\n\nExample:\nFEN: rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1\nPiece on: b1\nAnswer: Na3, Nc3\n\nFEN: 5rk1/1p2p1rp/p2p4/2pPb2R/2P1P3/1P1BKP1R/8/8 b - - 4 30\nPiece on: g8\nAnswer:"
},
{
"role": "assistant",
"content": "Kh8, Kf7"
}
] |
|
3k3r/2R2p2/p7/1p4P1/3PpB2/5bP1/P5r1/4RK2 w - - 13 32
|
ascii_board
|
Generate an ASCII representation of this chess position.
Output ONLY the 8x8 grid. Use uppercase for White, lowercase for Black, dots for empty.
Example:
FEN: rnbqkbnr/pppppppp/8/8/4P3/8/PPPP1PPP/RNBQKBNR b KQkq - 0 1
Output:
r n b q k b n r
p p p p p p p p
. . . . . . . .
. . . . . . . .
. . . . P . . .
. . . . . . . .
P P P P . P P P
R N B Q K B N R
FEN: 3k3r/2R2p2/p7/1p4P1/3PpB2/5bP1/P5r1/4RK2 w - - 13 32
Output:
|
. . . k . . . r
. . R . . p . .
p . . . . . . .
. p . . . . P .
. . . P p B . .
. . . . . b P .
P . . . . . r .
. . . . R K . .
|
https://lichess.org/training/01PQv
|
[
{
"role": "user",
"content": "Generate an ASCII representation of this chess position.\nOutput ONLY the 8x8 grid. Use uppercase for White, lowercase for Black, dots for empty.\n\nExample:\nFEN: rnbqkbnr/pppppppp/8/8/4P3/8/PPPP1PPP/RNBQKBNR b KQkq - 0 1\nOutput:\nr n b q k b n r\np p p p p p p p\n. . . . . . . .\n. . . . . . . .\n. . . . P . . .\n. . . . . . . .\nP P P P . P P P\nR N B Q K B N R\n\nFEN: 3k3r/2R2p2/p7/1p4P1/3PpB2/5bP1/P5r1/4RK2 w - - 13 32\nOutput:"
},
{
"role": "assistant",
"content": ". . . k . . . r\n. . R . . p . .\np . . . . . . .\n. p . . . . P .\n. . . P p B . .\n. . . . . b P .\nP . . . . . r .\n. . . . R K . ."
}
] |
|
5r1k/6p1/1Q2pq1p/P4r2/3P4/2P1R3/6PP/4R1K1 w - - 1 39
|
puzzle
|
Find the best move for this chess puzzle. Respond with ONLY the move in UCI notation (e.g., e2e4).
Example 1:
FEN: 8/1r6/8/5k1p/2B4K/1P6/8/1R6 w - - 1 44
Answer: h4h5
Example 2:
FEN: 1r3rk1/pbp2p1p/1p4pb/3qp3/1n6/PP1PP1PP/NBPQ3K/R4RN1 w - - 2 18
Answer: a2b4
Now solve:
FEN: 5r1k/6p1/1Q2pq1p/P4r2/3P4/2P1R3/6PP/4R1K1 w - - 1 39
Answer:
|
d4d5
|
https://lichess.org/training/00ghH
|
[
{
"role": "user",
"content": "Find the best move for this chess puzzle. Respond with ONLY the move in UCI notation (e.g., e2e4).\n\nExample 1:\nFEN: 8/1r6/8/5k1p/2B4K/1P6/8/1R6 w - - 1 44\nAnswer: h4h5\n\nExample 2:\nFEN: 1r3rk1/pbp2p1p/1p4pb/3qp3/1n6/PP1PP1PP/NBPQ3K/R4RN1 w - - 2 18\nAnswer: a2b4\n\nNow solve:\nFEN: 5r1k/6p1/1Q2pq1p/P4r2/3P4/2P1R3/6PP/4R1K1 w - - 1 39\nAnswer:"
},
{
"role": "assistant",
"content": "d4d5"
}
] |
|
8/1k6/1pn1R3/8/Pp4p1/4P3/5PK1/8 w - - 0 51
|
piece_captures
|
List all captures the piece on e6 can make.
Respond with ONLY the captures in SAN notation, comma-separated. If no captures, respond "none".
Example:
FEN: r1bqkb1r/pppp1ppp/2n2n2/4p3/2B1P3/5N2/PPPP1PPP/RNBQK2R w KQkq - 4 4
Piece on: c4
Answer: Bxf7+
FEN: 8/1k6/1pn1R3/8/Pp4p1/4P3/5PK1/8 w - - 0 51
Piece on: e6
Answer:
|
Rxc6
|
https://lichess.org/training/00R9D
|
[
{
"role": "user",
"content": "List all captures the piece on e6 can make.\nRespond with ONLY the captures in SAN notation, comma-separated. If no captures, respond \"none\".\n\nExample:\nFEN: r1bqkb1r/pppp1ppp/2n2n2/4p3/2B1P3/5N2/PPPP1PPP/RNBQK2R w KQkq - 4 4\nPiece on: c4\nAnswer: Bxf7+\n\nFEN: 8/1k6/1pn1R3/8/Pp4p1/4P3/5PK1/8 w - - 0 51\nPiece on: e6\nAnswer:"
},
{
"role": "assistant",
"content": "Rxc6"
}
] |
|
8/2rN1pk1/2P4p/pB6/1b4RP/5K2/8/4r3 b - - 4 44
|
legal_moves
|
List all legal moves for the piece on g7 in this position.
Respond with ONLY the moves in SAN notation, comma-separated.
Example:
FEN: rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1
Piece on: b1
Answer: Na3, Nc3
FEN: 8/2rN1pk1/2P4p/pB6/1b4RP/5K2/8/4r3 b - - 4 44
Piece on: g7
Answer:
|
Kh8, Kh7
|
https://lichess.org/training/01IvQ
|
[
{
"role": "user",
"content": "List all legal moves for the piece on g7 in this position.\nRespond with ONLY the moves in SAN notation, comma-separated.\n\nExample:\nFEN: rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1\nPiece on: b1\nAnswer: Na3, Nc3\n\nFEN: 8/2rN1pk1/2P4p/pB6/1b4RP/5K2/8/4r3 b - - 4 44\nPiece on: g7\nAnswer:"
},
{
"role": "assistant",
"content": "Kh8, Kh7"
}
] |
|
r6r/N2k1pQ1/4p2p/1Nbp4/P3n3/8/2P3PP/R3R1qK w - - 2 26
|
piece_positions
|
List all pieces and their positions from this FEN.
Format: "White: pieces" then "Black: pieces", sorted by piece value (K, Q, R, B, N, P).
Example:
FEN: rnbqkbnr/pppppppp/8/8/4P3/8/PPPP1PPP/RNBQKBNR b KQkq - 0 1
Answer:
White: Ke1, Qd1, Ra1, Rh1, Bc1, Bf1, Nb1, Ng1, Pa2, Pb2, Pc2, Pd2, Pe4, Pf2, Pg2, Ph2
Black: Ke8, Qd8, Ra8, Rh8, Bc8, Bf8, Nb8, Ng8, Pa7, Pb7, Pc7, Pd7, Pe7, Pf7, Pg7, Ph7
FEN: r6r/N2k1pQ1/4p2p/1Nbp4/P3n3/8/2P3PP/R3R1qK w - - 2 26
Answer:
|
White: Kh1, Qg7, Ra1, Re1, Na7, Nb5, Pa4, Pc2, Pg2, Ph2
Black: Kd7, Qg1, Ra8, Rh8, Bc5, Ne4, Pd5, Pe6, Pf7, Ph6
|
https://lichess.org/training/01Tea
|
[
{
"role": "user",
"content": "List all pieces and their positions from this FEN.\nFormat: \"White: pieces\" then \"Black: pieces\", sorted by piece value (K, Q, R, B, N, P).\n\nExample:\nFEN: rnbqkbnr/pppppppp/8/8/4P3/8/PPPP1PPP/RNBQKBNR b KQkq - 0 1\nAnswer:\nWhite: Ke1, Qd1, Ra1, Rh1, Bc1, Bf1, Nb1, Ng1, Pa2, Pb2, Pc2, Pd2, Pe4, Pf2, Pg2, Ph2\nBlack: Ke8, Qd8, Ra8, Rh8, Bc8, Bf8, Nb8, Ng8, Pa7, Pb7, Pc7, Pd7, Pe7, Pf7, Pg7, Ph7\n\nFEN: r6r/N2k1pQ1/4p2p/1Nbp4/P3n3/8/2P3PP/R3R1qK w - - 2 26\nAnswer:"
},
{
"role": "assistant",
"content": "White: Kh1, Qg7, Ra1, Re1, Na7, Nb5, Pa4, Pc2, Pg2, Ph2\nBlack: Kd7, Qg1, Ra8, Rh8, Bc5, Ne4, Pd5, Pe6, Pf7, Ph6"
}
] |
|
2r3k1/p4ppp/1pb1pq2/1P6/2Q1PP2/6P1/P5BP/2R3K1 b - - 0 24
|
piece_positions
|
List all pieces and their positions from this FEN.
Format: "White: pieces" then "Black: pieces", sorted by piece value (K, Q, R, B, N, P).
Example:
FEN: rnbqkbnr/pppppppp/8/8/4P3/8/PPPP1PPP/RNBQKBNR b KQkq - 0 1
Answer:
White: Ke1, Qd1, Ra1, Rh1, Bc1, Bf1, Nb1, Ng1, Pa2, Pb2, Pc2, Pd2, Pe4, Pf2, Pg2, Ph2
Black: Ke8, Qd8, Ra8, Rh8, Bc8, Bf8, Nb8, Ng8, Pa7, Pb7, Pc7, Pd7, Pe7, Pf7, Pg7, Ph7
FEN: 2r3k1/p4ppp/1pb1pq2/1P6/2Q1PP2/6P1/P5BP/2R3K1 b - - 0 24
Answer:
|
White: Kg1, Qc4, Rc1, Bg2, Pa2, Pb5, Pe4, Pf4, Pg3, Ph2
Black: Kg8, Qf6, Rc8, Bc6, Pa7, Pb6, Pe6, Pf7, Pg7, Ph7
|
https://lichess.org/training/00o7c
|
[
{
"role": "user",
"content": "List all pieces and their positions from this FEN.\nFormat: \"White: pieces\" then \"Black: pieces\", sorted by piece value (K, Q, R, B, N, P).\n\nExample:\nFEN: rnbqkbnr/pppppppp/8/8/4P3/8/PPPP1PPP/RNBQKBNR b KQkq - 0 1\nAnswer:\nWhite: Ke1, Qd1, Ra1, Rh1, Bc1, Bf1, Nb1, Ng1, Pa2, Pb2, Pc2, Pd2, Pe4, Pf2, Pg2, Ph2\nBlack: Ke8, Qd8, Ra8, Rh8, Bc8, Bf8, Nb8, Ng8, Pa7, Pb7, Pc7, Pd7, Pe7, Pf7, Pg7, Ph7\n\nFEN: 2r3k1/p4ppp/1pb1pq2/1P6/2Q1PP2/6P1/P5BP/2R3K1 b - - 0 24\nAnswer:"
},
{
"role": "assistant",
"content": "White: Kg1, Qc4, Rc1, Bg2, Pa2, Pb5, Pe4, Pf4, Pg3, Ph2\nBlack: Kg8, Qf6, Rc8, Bc6, Pa7, Pb6, Pe6, Pf7, Pg7, Ph7"
}
] |
|
2kr3r/1pq2pp1/p1pbb3/7p/Q2P2n1/5N2/PP1B1PPP/2R1RBK1 w - - 1 20
|
legal_moves
|
List all legal moves for the piece on d4 in this position.
Respond with ONLY the moves in SAN notation, comma-separated.
Example:
FEN: rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1
Piece on: b1
Answer: Na3, Nc3
FEN: 2kr3r/1pq2pp1/p1pbb3/7p/Q2P2n1/5N2/PP1B1PPP/2R1RBK1 w - - 1 20
Piece on: d4
Answer:
|
d5
|
https://lichess.org/training/00gnK
|
[
{
"role": "user",
"content": "List all legal moves for the piece on d4 in this position.\nRespond with ONLY the moves in SAN notation, comma-separated.\n\nExample:\nFEN: rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1\nPiece on: b1\nAnswer: Na3, Nc3\n\nFEN: 2kr3r/1pq2pp1/p1pbb3/7p/Q2P2n1/5N2/PP1B1PPP/2R1RBK1 w - - 1 20\nPiece on: d4\nAnswer:"
},
{
"role": "assistant",
"content": "d5"
}
] |
|
3r1rk1/1p4p1/p1p3Qp/2q5/8/3n1N1P/PP1R2P1/5R1K b - - 7 28
|
puzzle
|
Find the best move for this chess puzzle. Respond with ONLY the move in UCI notation (e.g., e2e4).
Example 1:
FEN: 8/1r6/8/5k1p/2B4K/1P6/8/1R6 w - - 1 44
Answer: h4h5
Example 2:
FEN: 1r3rk1/pbp2p1p/1p4pb/3qp3/1n6/PP1PP1PP/NBPQ3K/R4RN1 w - - 2 18
Answer: a2b4
Now solve:
FEN: 3r1rk1/1p4p1/p1p3Qp/2q5/8/3n1N1P/PP1R2P1/5R1K b - - 7 28
Answer:
|
g8h8
|
https://lichess.org/training/006cZ
|
[
{
"role": "user",
"content": "Find the best move for this chess puzzle. Respond with ONLY the move in UCI notation (e.g., e2e4).\n\nExample 1:\nFEN: 8/1r6/8/5k1p/2B4K/1P6/8/1R6 w - - 1 44\nAnswer: h4h5\n\nExample 2:\nFEN: 1r3rk1/pbp2p1p/1p4pb/3qp3/1n6/PP1PP1PP/NBPQ3K/R4RN1 w - - 2 18\nAnswer: a2b4\n\nNow solve:\nFEN: 3r1rk1/1p4p1/p1p3Qp/2q5/8/3n1N1P/PP1R2P1/5R1K b - - 7 28\nAnswer:"
},
{
"role": "assistant",
"content": "g8h8"
}
] |
|
r2brk1Q/pp3pp1/1q1pb1n1/1Bp1p1P1/4P3/P1PPBN2/5P2/1R2K2R b K - 10 26
|
piece_captures
|
List all captures the piece on g6 can make.
Respond with ONLY the captures in SAN notation, comma-separated. If no captures, respond "none".
Example:
FEN: r1bqkb1r/pppp1ppp/2n2n2/4p3/2B1P3/5N2/PPPP1PPP/RNBQK2R w KQkq - 4 4
Piece on: c4
Answer: Bxf7+
FEN: r2brk1Q/pp3pp1/1q1pb1n1/1Bp1p1P1/4P3/P1PPBN2/5P2/1R2K2R b K - 10 26
Piece on: g6
Answer:
|
Nxh8
|
https://lichess.org/training/00sd6
|
[
{
"role": "user",
"content": "List all captures the piece on g6 can make.\nRespond with ONLY the captures in SAN notation, comma-separated. If no captures, respond \"none\".\n\nExample:\nFEN: r1bqkb1r/pppp1ppp/2n2n2/4p3/2B1P3/5N2/PPPP1PPP/RNBQK2R w KQkq - 4 4\nPiece on: c4\nAnswer: Bxf7+\n\nFEN: r2brk1Q/pp3pp1/1q1pb1n1/1Bp1p1P1/4P3/P1PPBN2/5P2/1R2K2R b K - 10 26\nPiece on: g6\nAnswer:"
},
{
"role": "assistant",
"content": "Nxh8"
}
] |
|
2r4k/5p2/4pNp1/6Pp/q6P/7r/2PQ4/1RKN4 w - - 2 37
|
legal_moves
|
List all legal moves for the piece on f6 in this position.
Respond with ONLY the moves in SAN notation, comma-separated.
Example:
FEN: rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1
Piece on: b1
Answer: Na3, Nc3
FEN: 2r4k/5p2/4pNp1/6Pp/q6P/7r/2PQ4/1RKN4 w - - 2 37
Piece on: f6
Answer:
|
Ng8, Ne8, Nh7, Nd7, Nxh5, Nd5, Ng4, Ne4
|
https://lichess.org/training/00LWX
|
[
{
"role": "user",
"content": "List all legal moves for the piece on f6 in this position.\nRespond with ONLY the moves in SAN notation, comma-separated.\n\nExample:\nFEN: rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1\nPiece on: b1\nAnswer: Na3, Nc3\n\nFEN: 2r4k/5p2/4pNp1/6Pp/q6P/7r/2PQ4/1RKN4 w - - 2 37\nPiece on: f6\nAnswer:"
},
{
"role": "assistant",
"content": "Ng8, Ne8, Nh7, Nd7, Nxh5, Nd5, Ng4, Ne4"
}
] |
|
r4rk1/p1p1bpp1/2pp2b1/4n1Pp/4P2P/1BN2P1q/PPP2K2/R1BQ3R b - - 6 17
|
piece_positions
|
List all pieces and their positions from this FEN.
Format: "White: pieces" then "Black: pieces", sorted by piece value (K, Q, R, B, N, P).
Example:
FEN: rnbqkbnr/pppppppp/8/8/4P3/8/PPPP1PPP/RNBQKBNR b KQkq - 0 1
Answer:
White: Ke1, Qd1, Ra1, Rh1, Bc1, Bf1, Nb1, Ng1, Pa2, Pb2, Pc2, Pd2, Pe4, Pf2, Pg2, Ph2
Black: Ke8, Qd8, Ra8, Rh8, Bc8, Bf8, Nb8, Ng8, Pa7, Pb7, Pc7, Pd7, Pe7, Pf7, Pg7, Ph7
FEN: r4rk1/p1p1bpp1/2pp2b1/4n1Pp/4P2P/1BN2P1q/PPP2K2/R1BQ3R b - - 6 17
Answer:
|
White: Kf2, Qd1, Ra1, Rh1, Bb3, Bc1, Nc3, Pa2, Pb2, Pc2, Pe4, Pf3, Pg5, Ph4
Black: Kg8, Qh3, Ra8, Rf8, Be7, Bg6, Ne5, Pa7, Pc6, Pc7, Pd6, Pf7, Pg7, Ph5
|
https://lichess.org/training/01HLj
|
[
{
"role": "user",
"content": "List all pieces and their positions from this FEN.\nFormat: \"White: pieces\" then \"Black: pieces\", sorted by piece value (K, Q, R, B, N, P).\n\nExample:\nFEN: rnbqkbnr/pppppppp/8/8/4P3/8/PPPP1PPP/RNBQKBNR b KQkq - 0 1\nAnswer:\nWhite: Ke1, Qd1, Ra1, Rh1, Bc1, Bf1, Nb1, Ng1, Pa2, Pb2, Pc2, Pd2, Pe4, Pf2, Pg2, Ph2\nBlack: Ke8, Qd8, Ra8, Rh8, Bc8, Bf8, Nb8, Ng8, Pa7, Pb7, Pc7, Pd7, Pe7, Pf7, Pg7, Ph7\n\nFEN: r4rk1/p1p1bpp1/2pp2b1/4n1Pp/4P2P/1BN2P1q/PPP2K2/R1BQ3R b - - 6 17\nAnswer:"
},
{
"role": "assistant",
"content": "White: Kf2, Qd1, Ra1, Rh1, Bb3, Bc1, Nc3, Pa2, Pb2, Pc2, Pe4, Pf3, Pg5, Ph4\nBlack: Kg8, Qh3, Ra8, Rf8, Be7, Bg6, Ne5, Pa7, Pc6, Pc7, Pd6, Pf7, Pg7, Ph5"
}
] |
|
r1br1N1k/ppp2BbQ/2n2n1p/q7/3P4/2N5/PPP2PPP/R1B2RK1 b - - 6 15
|
piece_positions
|
List all pieces and their positions from this FEN.
Format: "White: pieces" then "Black: pieces", sorted by piece value (K, Q, R, B, N, P).
Example:
FEN: rnbqkbnr/pppppppp/8/8/4P3/8/PPPP1PPP/RNBQKBNR b KQkq - 0 1
Answer:
White: Ke1, Qd1, Ra1, Rh1, Bc1, Bf1, Nb1, Ng1, Pa2, Pb2, Pc2, Pd2, Pe4, Pf2, Pg2, Ph2
Black: Ke8, Qd8, Ra8, Rh8, Bc8, Bf8, Nb8, Ng8, Pa7, Pb7, Pc7, Pd7, Pe7, Pf7, Pg7, Ph7
FEN: r1br1N1k/ppp2BbQ/2n2n1p/q7/3P4/2N5/PPP2PPP/R1B2RK1 b - - 6 15
Answer:
|
White: Kg1, Qh7, Ra1, Rf1, Bc1, Bf7, Nc3, Nf8, Pa2, Pb2, Pc2, Pd4, Pf2, Pg2, Ph2
Black: Kh8, Qa5, Ra8, Rd8, Bc8, Bg7, Nc6, Nf6, Pa7, Pb7, Pc7, Ph6
|
https://lichess.org/training/00Xdc
|
[
{
"role": "user",
"content": "List all pieces and their positions from this FEN.\nFormat: \"White: pieces\" then \"Black: pieces\", sorted by piece value (K, Q, R, B, N, P).\n\nExample:\nFEN: rnbqkbnr/pppppppp/8/8/4P3/8/PPPP1PPP/RNBQKBNR b KQkq - 0 1\nAnswer:\nWhite: Ke1, Qd1, Ra1, Rh1, Bc1, Bf1, Nb1, Ng1, Pa2, Pb2, Pc2, Pd2, Pe4, Pf2, Pg2, Ph2\nBlack: Ke8, Qd8, Ra8, Rh8, Bc8, Bf8, Nb8, Ng8, Pa7, Pb7, Pc7, Pd7, Pe7, Pf7, Pg7, Ph7\n\nFEN: r1br1N1k/ppp2BbQ/2n2n1p/q7/3P4/2N5/PPP2PPP/R1B2RK1 b - - 6 15\nAnswer:"
},
{
"role": "assistant",
"content": "White: Kg1, Qh7, Ra1, Rf1, Bc1, Bf7, Nc3, Nf8, Pa2, Pb2, Pc2, Pd4, Pf2, Pg2, Ph2\nBlack: Kh8, Qa5, Ra8, Rd8, Bc8, Bg7, Nc6, Nf6, Pa7, Pb7, Pc7, Ph6"
}
] |
|
r4r2/p1p2k1R/6R1/3n1pB1/1q1Pb3/8/1P2Q1PP/6K1 b - - 2 35
|
legal_moves
|
List all legal moves for the piece on f7 in this position.
Respond with ONLY the moves in SAN notation, comma-separated.
Example:
FEN: rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1
Piece on: b1
Answer: Na3, Nc3
FEN: r4r2/p1p2k1R/6R1/3n1pB1/1q1Pb3/8/1P2Q1PP/6K1 b - - 2 35
Piece on: f7
Answer:
|
Ke8, Kxg6
|
https://lichess.org/training/012uA
|
[
{
"role": "user",
"content": "List all legal moves for the piece on f7 in this position.\nRespond with ONLY the moves in SAN notation, comma-separated.\n\nExample:\nFEN: rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1\nPiece on: b1\nAnswer: Na3, Nc3\n\nFEN: r4r2/p1p2k1R/6R1/3n1pB1/1q1Pb3/8/1P2Q1PP/6K1 b - - 2 35\nPiece on: f7\nAnswer:"
},
{
"role": "assistant",
"content": "Ke8, Kxg6"
}
] |
|
3N3k/pQ5p/4p1p1/3q4/8/2b1P1P1/P3RPKP/4n3 w - - 1 28
|
puzzle
|
Find the best move for this chess puzzle. Respond with ONLY the move in UCI notation (e.g., e2e4).
Example 1:
FEN: 8/1r6/8/5k1p/2B4K/1P6/8/1R6 w - - 1 44
Answer: h4h5
Example 2:
FEN: 1r3rk1/pbp2p1p/1p4pb/3qp3/1n6/PP1PP1PP/NBPQ3K/R4RN1 w - - 2 18
Answer: a2b4
Now solve:
FEN: 3N3k/pQ5p/4p1p1/3q4/8/2b1P1P1/P3RPKP/4n3 w - - 1 28
Answer:
|
g2h3
|
https://lichess.org/training/00X5a
|
[
{
"role": "user",
"content": "Find the best move for this chess puzzle. Respond with ONLY the move in UCI notation (e.g., e2e4).\n\nExample 1:\nFEN: 8/1r6/8/5k1p/2B4K/1P6/8/1R6 w - - 1 44\nAnswer: h4h5\n\nExample 2:\nFEN: 1r3rk1/pbp2p1p/1p4pb/3qp3/1n6/PP1PP1PP/NBPQ3K/R4RN1 w - - 2 18\nAnswer: a2b4\n\nNow solve:\nFEN: 3N3k/pQ5p/4p1p1/3q4/8/2b1P1P1/P3RPKP/4n3 w - - 1 28\nAnswer:"
},
{
"role": "assistant",
"content": "g2h3"
}
] |
|
6R1/1p4p1/p1k4p/3p4/PP2p1P1/2b1P3/6K1/8 b - - 2 37
|
piece_captures
|
List all captures the piece on c3 can make.
Respond with ONLY the captures in SAN notation, comma-separated. If no captures, respond "none".
Example:
FEN: r1bqkb1r/pppp1ppp/2n2n2/4p3/2B1P3/5N2/PPPP1PPP/RNBQK2R w KQkq - 4 4
Piece on: c4
Answer: Bxf7+
FEN: 6R1/1p4p1/p1k4p/3p4/PP2p1P1/2b1P3/6K1/8 b - - 2 37
Piece on: c3
Answer:
|
Bxb4
|
https://lichess.org/training/00nl3
|
[
{
"role": "user",
"content": "List all captures the piece on c3 can make.\nRespond with ONLY the captures in SAN notation, comma-separated. If no captures, respond \"none\".\n\nExample:\nFEN: r1bqkb1r/pppp1ppp/2n2n2/4p3/2B1P3/5N2/PPPP1PPP/RNBQK2R w KQkq - 4 4\nPiece on: c4\nAnswer: Bxf7+\n\nFEN: 6R1/1p4p1/p1k4p/3p4/PP2p1P1/2b1P3/6K1/8 b - - 2 37\nPiece on: c3\nAnswer:"
},
{
"role": "assistant",
"content": "Bxb4"
}
] |
|
r1q2rk1/1p1b1pbp/p2p2n1/2p2N2/P3PR2/2NP2QP/1PP3BK/R7 b - - 4 20
|
puzzle
|
Find the best move for this chess puzzle. Respond with ONLY the move in UCI notation (e.g., e2e4).
Example 1:
FEN: 8/1r6/8/5k1p/2B4K/1P6/8/1R6 w - - 1 44
Answer: h4h5
Example 2:
FEN: 1r3rk1/pbp2p1p/1p4pb/3qp3/1n6/PP1PP1PP/NBPQ3K/R4RN1 w - - 2 18
Answer: a2b4
Now solve:
FEN: r1q2rk1/1p1b1pbp/p2p2n1/2p2N2/P3PR2/2NP2QP/1PP3BK/R7 b - - 4 20
Answer:
|
g6f4
|
https://lichess.org/training/00zUZ
|
[
{
"role": "user",
"content": "Find the best move for this chess puzzle. Respond with ONLY the move in UCI notation (e.g., e2e4).\n\nExample 1:\nFEN: 8/1r6/8/5k1p/2B4K/1P6/8/1R6 w - - 1 44\nAnswer: h4h5\n\nExample 2:\nFEN: 1r3rk1/pbp2p1p/1p4pb/3qp3/1n6/PP1PP1PP/NBPQ3K/R4RN1 w - - 2 18\nAnswer: a2b4\n\nNow solve:\nFEN: r1q2rk1/1p1b1pbp/p2p2n1/2p2N2/P3PR2/2NP2QP/1PP3BK/R7 b - - 4 20\nAnswer:"
},
{
"role": "assistant",
"content": "g6f4"
}
] |
|
4r3/p5k1/2p2R1p/2Pp4/1P1pr1P1/P6P/8/3R3K w - - 1 35
|
puzzle
|
Find the best move for this chess puzzle. Respond with ONLY the move in UCI notation (e.g., e2e4).
Example 1:
FEN: 8/1r6/8/5k1p/2B4K/1P6/8/1R6 w - - 1 44
Answer: h4h5
Example 2:
FEN: 1r3rk1/pbp2p1p/1p4pb/3qp3/1n6/PP1PP1PP/NBPQ3K/R4RN1 w - - 2 18
Answer: a2b4
Now solve:
FEN: 4r3/p5k1/2p2R1p/2Pp4/1P1pr1P1/P6P/8/3R3K w - - 1 35
Answer:
|
f6c6
|
https://lichess.org/training/0048h
|
[
{
"role": "user",
"content": "Find the best move for this chess puzzle. Respond with ONLY the move in UCI notation (e.g., e2e4).\n\nExample 1:\nFEN: 8/1r6/8/5k1p/2B4K/1P6/8/1R6 w - - 1 44\nAnswer: h4h5\n\nExample 2:\nFEN: 1r3rk1/pbp2p1p/1p4pb/3qp3/1n6/PP1PP1PP/NBPQ3K/R4RN1 w - - 2 18\nAnswer: a2b4\n\nNow solve:\nFEN: 4r3/p5k1/2p2R1p/2Pp4/1P1pr1P1/P6P/8/3R3K w - - 1 35\nAnswer:"
},
{
"role": "assistant",
"content": "f6c6"
}
] |
|
8/7p/2b1k3/p2p1pPB/1n1P3P/N1p1P3/4K3/8 b - - 1 42
|
ascii_board
|
Generate an ASCII representation of this chess position.
Output ONLY the 8x8 grid. Use uppercase for White, lowercase for Black, dots for empty.
Example:
FEN: rnbqkbnr/pppppppp/8/8/4P3/8/PPPP1PPP/RNBQKBNR b KQkq - 0 1
Output:
r n b q k b n r
p p p p p p p p
. . . . . . . .
. . . . . . . .
. . . . P . . .
. . . . . . . .
P P P P . P P P
R N B Q K B N R
FEN: 8/7p/2b1k3/p2p1pPB/1n1P3P/N1p1P3/4K3/8 b - - 1 42
Output:
|
. . . . . . . .
. . . . . . . p
. . b . k . . .
p . . p . p P B
. n . P . . . P
N . p . P . . .
. . . . K . . .
. . . . . . . .
|
https://lichess.org/training/002bK
|
[
{
"role": "user",
"content": "Generate an ASCII representation of this chess position.\nOutput ONLY the 8x8 grid. Use uppercase for White, lowercase for Black, dots for empty.\n\nExample:\nFEN: rnbqkbnr/pppppppp/8/8/4P3/8/PPPP1PPP/RNBQKBNR b KQkq - 0 1\nOutput:\nr n b q k b n r\np p p p p p p p\n. . . . . . . .\n. . . . . . . .\n. . . . P . . .\n. . . . . . . .\nP P P P . P P P\nR N B Q K B N R\n\nFEN: 8/7p/2b1k3/p2p1pPB/1n1P3P/N1p1P3/4K3/8 b - - 1 42\nOutput:"
},
{
"role": "assistant",
"content": ". . . . . . . .\n. . . . . . . p\n. . b . k . . .\np . . p . p P B\n. n . P . . . P\nN . p . P . . .\n. . . . K . . .\n. . . . . . . ."
}
] |
|
8/2R2pk1/4p1pp/3p4/3Pq2P/1r2P1P1/5P1K/5Q2 w - - 2 45
|
puzzle
|
Find the best move for this chess puzzle. Respond with ONLY the move in UCI notation (e.g., e2e4).
Example 1:
FEN: 8/1r6/8/5k1p/2B4K/1P6/8/1R6 w - - 1 44
Answer: h4h5
Example 2:
FEN: 1r3rk1/pbp2p1p/1p4pb/3qp3/1n6/PP1PP1PP/NBPQ3K/R4RN1 w - - 2 18
Answer: a2b4
Now solve:
FEN: 8/2R2pk1/4p1pp/3p4/3Pq2P/1r2P1P1/5P1K/5Q2 w - - 2 45
Answer:
|
f1c1
|
https://lichess.org/training/00WtH
|
[
{
"role": "user",
"content": "Find the best move for this chess puzzle. Respond with ONLY the move in UCI notation (e.g., e2e4).\n\nExample 1:\nFEN: 8/1r6/8/5k1p/2B4K/1P6/8/1R6 w - - 1 44\nAnswer: h4h5\n\nExample 2:\nFEN: 1r3rk1/pbp2p1p/1p4pb/3qp3/1n6/PP1PP1PP/NBPQ3K/R4RN1 w - - 2 18\nAnswer: a2b4\n\nNow solve:\nFEN: 8/2R2pk1/4p1pp/3p4/3Pq2P/1r2P1P1/5P1K/5Q2 w - - 2 45\nAnswer:"
},
{
"role": "assistant",
"content": "f1c1"
}
] |
|
2r3k1/2r2p2/p5p1/q5Pp/1p3P1P/8/PPPRQ3/1K3R2 w - - 0 32
|
legal_moves
|
List all legal moves for the piece on b1 in this position.
Respond with ONLY the moves in SAN notation, comma-separated.
Example:
FEN: rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1
Piece on: b1
Answer: Na3, Nc3
FEN: 2r3k1/2r2p2/p5p1/q5Pp/1p3P1P/8/PPPRQ3/1K3R2 w - - 0 32
Piece on: b1
Answer:
|
Kc1, Ka1
|
https://lichess.org/training/01VZi
|
[
{
"role": "user",
"content": "List all legal moves for the piece on b1 in this position.\nRespond with ONLY the moves in SAN notation, comma-separated.\n\nExample:\nFEN: rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1\nPiece on: b1\nAnswer: Na3, Nc3\n\nFEN: 2r3k1/2r2p2/p5p1/q5Pp/1p3P1P/8/PPPRQ3/1K3R2 w - - 0 32\nPiece on: b1\nAnswer:"
},
{
"role": "assistant",
"content": "Kc1, Ka1"
}
] |
|
3R2k1/5pp1/2b4p/2b5/p1P5/P4P1P/6P1/5K2 b - - 4 36
|
puzzle
|
Find the best move for this chess puzzle. Respond with ONLY the move in UCI notation (e.g., e2e4).
Example 1:
FEN: 8/1r6/8/5k1p/2B4K/1P6/8/1R6 w - - 1 44
Answer: h4h5
Example 2:
FEN: 1r3rk1/pbp2p1p/1p4pb/3qp3/1n6/PP1PP1PP/NBPQ3K/R4RN1 w - - 2 18
Answer: a2b4
Now solve:
FEN: 3R2k1/5pp1/2b4p/2b5/p1P5/P4P1P/6P1/5K2 b - - 4 36
Answer:
|
g8h7
|
https://lichess.org/training/00nji
|
[
{
"role": "user",
"content": "Find the best move for this chess puzzle. Respond with ONLY the move in UCI notation (e.g., e2e4).\n\nExample 1:\nFEN: 8/1r6/8/5k1p/2B4K/1P6/8/1R6 w - - 1 44\nAnswer: h4h5\n\nExample 2:\nFEN: 1r3rk1/pbp2p1p/1p4pb/3qp3/1n6/PP1PP1PP/NBPQ3K/R4RN1 w - - 2 18\nAnswer: a2b4\n\nNow solve:\nFEN: 3R2k1/5pp1/2b4p/2b5/p1P5/P4P1P/6P1/5K2 b - - 4 36\nAnswer:"
},
{
"role": "assistant",
"content": "g8h7"
}
] |
|
2k3r1/ppp2prp/1q2b3/8/Q7/2P1R1P1/P4P1P/4R1K1 b - - 3 23
|
puzzle
|
Find the best move for this chess puzzle. Respond with ONLY the move in UCI notation (e.g., e2e4).
Example 1:
FEN: 8/1r6/8/5k1p/2B4K/1P6/8/1R6 w - - 1 44
Answer: h4h5
Example 2:
FEN: 1r3rk1/pbp2p1p/1p4pb/3qp3/1n6/PP1PP1PP/NBPQ3K/R4RN1 w - - 2 18
Answer: a2b4
Now solve:
FEN: 2k3r1/ppp2prp/1q2b3/8/Q7/2P1R1P1/P4P1P/4R1K1 b - - 3 23
Answer:
|
e6d7
|
https://lichess.org/training/00F6y
|
[
{
"role": "user",
"content": "Find the best move for this chess puzzle. Respond with ONLY the move in UCI notation (e.g., e2e4).\n\nExample 1:\nFEN: 8/1r6/8/5k1p/2B4K/1P6/8/1R6 w - - 1 44\nAnswer: h4h5\n\nExample 2:\nFEN: 1r3rk1/pbp2p1p/1p4pb/3qp3/1n6/PP1PP1PP/NBPQ3K/R4RN1 w - - 2 18\nAnswer: a2b4\n\nNow solve:\nFEN: 2k3r1/ppp2prp/1q2b3/8/Q7/2P1R1P1/P4P1P/4R1K1 b - - 3 23\nAnswer:"
},
{
"role": "assistant",
"content": "e6d7"
}
] |
|
3r1rk1/3b1pp1/7p/8/N2Qp1n1/1P6/PB1q1PP1/R5K1 b - - 1 25
|
legal_captures
|
List all legal captures in this position.
Respond with ONLY the captures in SAN notation, comma-separated. If no captures, respond "none".
Example:
FEN: r1bqkb1r/pppp1ppp/2n2n2/4p3/2B1P3/5N2/PPPP1PPP/RNBQK2R w KQkq - 4 4
Answer: Bxf7+
FEN: 3r1rk1/3b1pp1/7p/8/N2Qp1n1/1P6/PB1q1PP1/R5K1 b - - 1 25
Answer:
|
Bxa4, Nxf2, Qxd4, Qxf2+, Qxb2
|
https://lichess.org/training/00ITc
|
[
{
"role": "user",
"content": "List all legal captures in this position.\nRespond with ONLY the captures in SAN notation, comma-separated. If no captures, respond \"none\".\n\nExample:\nFEN: r1bqkb1r/pppp1ppp/2n2n2/4p3/2B1P3/5N2/PPPP1PPP/RNBQK2R w KQkq - 4 4\nAnswer: Bxf7+\n\nFEN: 3r1rk1/3b1pp1/7p/8/N2Qp1n1/1P6/PB1q1PP1/R5K1 b - - 1 25\nAnswer:"
},
{
"role": "assistant",
"content": "Bxa4, Nxf2, Qxd4, Qxf2+, Qxb2"
}
] |
|
r1b2rk1/pp3ppp/2p1pn2/8/2P5/n5Q1/PP1BN1PP/Kq1R1B1R w - - 10 22
|
piece_captures
|
List all captures the piece on d1 can make.
Respond with ONLY the captures in SAN notation, comma-separated. If no captures, respond "none".
Example:
FEN: r1bqkb1r/pppp1ppp/2n2n2/4p3/2B1P3/5N2/PPPP1PPP/RNBQK2R w KQkq - 4 4
Piece on: c4
Answer: Bxf7+
FEN: r1b2rk1/pp3ppp/2p1pn2/8/2P5/n5Q1/PP1BN1PP/Kq1R1B1R w - - 10 22
Piece on: d1
Answer:
|
Rxb1
|
https://lichess.org/training/017Lc
|
[
{
"role": "user",
"content": "List all captures the piece on d1 can make.\nRespond with ONLY the captures in SAN notation, comma-separated. If no captures, respond \"none\".\n\nExample:\nFEN: r1bqkb1r/pppp1ppp/2n2n2/4p3/2B1P3/5N2/PPPP1PPP/RNBQK2R w KQkq - 4 4\nPiece on: c4\nAnswer: Bxf7+\n\nFEN: r1b2rk1/pp3ppp/2p1pn2/8/2P5/n5Q1/PP1BN1PP/Kq1R1B1R w - - 10 22\nPiece on: d1\nAnswer:"
},
{
"role": "assistant",
"content": "Rxb1"
}
] |
|
3r4/1pp3bk/3p3n/p2P3Q/P3p3/4q3/1P2Nr2/R2K2R1 b - - 7 39
|
legal_captures
|
List all legal captures in this position.
Respond with ONLY the captures in SAN notation, comma-separated. If no captures, respond "none".
Example:
FEN: r1bqkb1r/pppp1ppp/2n2n2/4p3/2B1P3/5N2/PPPP1PPP/RNBQK2R w KQkq - 4 4
Answer: Bxf7+
FEN: 3r4/1pp3bk/3p3n/p2P3Q/P3p3/4q3/1P2Nr2/R2K2R1 b - - 7 39
Answer:
|
Bxb2, Qxe2+, Rxe2
|
https://lichess.org/training/01JIQ
|
[
{
"role": "user",
"content": "List all legal captures in this position.\nRespond with ONLY the captures in SAN notation, comma-separated. If no captures, respond \"none\".\n\nExample:\nFEN: r1bqkb1r/pppp1ppp/2n2n2/4p3/2B1P3/5N2/PPPP1PPP/RNBQK2R w KQkq - 4 4\nAnswer: Bxf7+\n\nFEN: 3r4/1pp3bk/3p3n/p2P3Q/P3p3/4q3/1P2Nr2/R2K2R1 b - - 7 39\nAnswer:"
},
{
"role": "assistant",
"content": "Bxb2, Qxe2+, Rxe2"
}
] |
|
6rk/7p/R2N3P/1r6/1P5K/P7/8/8 b - - 4 50
|
legal_moves
|
List all legal moves for the piece on b5 in this position.
Respond with ONLY the moves in SAN notation, comma-separated.
Example:
FEN: rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1
Piece on: b1
Answer: Na3, Nc3
FEN: 6rk/7p/R2N3P/1r6/1P5K/P7/8/8 b - - 4 50
Piece on: b5
Answer:
|
Rbb8, Rb7, Rb6, Rh5+, Rbg5, Rf5, Re5, Rd5, Rc5, Ra5, Rxb4+
|
https://lichess.org/training/00OPk
|
[
{
"role": "user",
"content": "List all legal moves for the piece on b5 in this position.\nRespond with ONLY the moves in SAN notation, comma-separated.\n\nExample:\nFEN: rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1\nPiece on: b1\nAnswer: Na3, Nc3\n\nFEN: 6rk/7p/R2N3P/1r6/1P5K/P7/8/8 b - - 4 50\nPiece on: b5\nAnswer:"
},
{
"role": "assistant",
"content": "Rbb8, Rb7, Rb6, Rh5+, Rbg5, Rf5, Re5, Rd5, Rc5, Ra5, Rxb4+"
}
] |
|
r5k1/6p1/2N3pp/3p4/P2P4/1P5n/6PP/5RqK w - - 7 34
|
ascii_board
|
Generate an ASCII representation of this chess position.
Output ONLY the 8x8 grid. Use uppercase for White, lowercase for Black, dots for empty.
Example:
FEN: rnbqkbnr/pppppppp/8/8/4P3/8/PPPP1PPP/RNBQKBNR b KQkq - 0 1
Output:
r n b q k b n r
p p p p p p p p
. . . . . . . .
. . . . . . . .
. . . . P . . .
. . . . . . . .
P P P P . P P P
R N B Q K B N R
FEN: r5k1/6p1/2N3pp/3p4/P2P4/1P5n/6PP/5RqK w - - 7 34
Output:
|
r . . . . . k .
. . . . . . p .
. . N . . . p p
. . . p . . . .
P . . P . . . .
. P . . . . . n
. . . . . . P P
. . . . . R q K
|
https://lichess.org/training/01H4V
|
[
{
"role": "user",
"content": "Generate an ASCII representation of this chess position.\nOutput ONLY the 8x8 grid. Use uppercase for White, lowercase for Black, dots for empty.\n\nExample:\nFEN: rnbqkbnr/pppppppp/8/8/4P3/8/PPPP1PPP/RNBQKBNR b KQkq - 0 1\nOutput:\nr n b q k b n r\np p p p p p p p\n. . . . . . . .\n. . . . . . . .\n. . . . P . . .\n. . . . . . . .\nP P P P . P P P\nR N B Q K B N R\n\nFEN: r5k1/6p1/2N3pp/3p4/P2P4/1P5n/6PP/5RqK w - - 7 34\nOutput:"
},
{
"role": "assistant",
"content": "r . . . . . k .\n. . . . . . p .\n. . N . . . p p\n. . . p . . . .\nP . . P . . . .\n. P . . . . . n\n. . . . . . P P\n. . . . . R q K"
}
] |
|
4r2k/3q2r1/1p4pQ/p1pP4/2P4P/1N4p1/PP3RK1/8 b - - 1 37
|
puzzle
|
Find the best move for this chess puzzle. Respond with ONLY the move in UCI notation (e.g., e2e4).
Example 1:
FEN: 8/1r6/8/5k1p/2B4K/1P6/8/1R6 w - - 1 44
Answer: h4h5
Example 2:
FEN: 1r3rk1/pbp2p1p/1p4pb/3qp3/1n6/PP1PP1PP/NBPQ3K/R4RN1 w - - 2 18
Answer: a2b4
Now solve:
FEN: 4r2k/3q2r1/1p4pQ/p1pP4/2P4P/1N4p1/PP3RK1/8 b - - 1 37
Answer:
|
g7h7
|
https://lichess.org/training/009bR
|
[
{
"role": "user",
"content": "Find the best move for this chess puzzle. Respond with ONLY the move in UCI notation (e.g., e2e4).\n\nExample 1:\nFEN: 8/1r6/8/5k1p/2B4K/1P6/8/1R6 w - - 1 44\nAnswer: h4h5\n\nExample 2:\nFEN: 1r3rk1/pbp2p1p/1p4pb/3qp3/1n6/PP1PP1PP/NBPQ3K/R4RN1 w - - 2 18\nAnswer: a2b4\n\nNow solve:\nFEN: 4r2k/3q2r1/1p4pQ/p1pP4/2P4P/1N4p1/PP3RK1/8 b - - 1 37\nAnswer:"
},
{
"role": "assistant",
"content": "g7h7"
}
] |
|
r6r/N2k1pQ1/4p2p/1Nbp4/P3n3/8/2P3PP/R3R1qK w - - 2 26
|
piece_captures
|
List all captures the piece on e1 can make.
Respond with ONLY the captures in SAN notation, comma-separated. If no captures, respond "none".
Example:
FEN: r1bqkb1r/pppp1ppp/2n2n2/4p3/2B1P3/5N2/PPPP1PPP/RNBQK2R w KQkq - 4 4
Piece on: c4
Answer: Bxf7+
FEN: r6r/N2k1pQ1/4p2p/1Nbp4/P3n3/8/2P3PP/R3R1qK w - - 2 26
Piece on: e1
Answer:
|
Rxg1
|
https://lichess.org/training/01Tea
|
[
{
"role": "user",
"content": "List all captures the piece on e1 can make.\nRespond with ONLY the captures in SAN notation, comma-separated. If no captures, respond \"none\".\n\nExample:\nFEN: r1bqkb1r/pppp1ppp/2n2n2/4p3/2B1P3/5N2/PPPP1PPP/RNBQK2R w KQkq - 4 4\nPiece on: c4\nAnswer: Bxf7+\n\nFEN: r6r/N2k1pQ1/4p2p/1Nbp4/P3n3/8/2P3PP/R3R1qK w - - 2 26\nPiece on: e1\nAnswer:"
},
{
"role": "assistant",
"content": "Rxg1"
}
] |
|
3k2Q1/q7/3pB1p1/2pP1p2/2P2P2/rp2PK1P/8/8 b - - 2 37
|
puzzle
|
Find the best move for this chess puzzle. Respond with ONLY the move in UCI notation (e.g., e2e4).
Example 1:
FEN: 8/1r6/8/5k1p/2B4K/1P6/8/1R6 w - - 1 44
Answer: h4h5
Example 2:
FEN: 1r3rk1/pbp2p1p/1p4pb/3qp3/1n6/PP1PP1PP/NBPQ3K/R4RN1 w - - 2 18
Answer: a2b4
Now solve:
FEN: 3k2Q1/q7/3pB1p1/2pP1p2/2P2P2/rp2PK1P/8/8 b - - 2 37
Answer:
|
d8c7
|
https://lichess.org/training/00l68
|
[
{
"role": "user",
"content": "Find the best move for this chess puzzle. Respond with ONLY the move in UCI notation (e.g., e2e4).\n\nExample 1:\nFEN: 8/1r6/8/5k1p/2B4K/1P6/8/1R6 w - - 1 44\nAnswer: h4h5\n\nExample 2:\nFEN: 1r3rk1/pbp2p1p/1p4pb/3qp3/1n6/PP1PP1PP/NBPQ3K/R4RN1 w - - 2 18\nAnswer: a2b4\n\nNow solve:\nFEN: 3k2Q1/q7/3pB1p1/2pP1p2/2P2P2/rp2PK1P/8/8 b - - 2 37\nAnswer:"
},
{
"role": "assistant",
"content": "d8c7"
}
] |
|
3r4/6pp/pNnNpk2/1p6/3pR3/8/PPP2PPK/8 w - - 4 32
|
ascii_board
|
Generate an ASCII representation of this chess position.
Output ONLY the 8x8 grid. Use uppercase for White, lowercase for Black, dots for empty.
Example:
FEN: rnbqkbnr/pppppppp/8/8/4P3/8/PPPP1PPP/RNBQKBNR b KQkq - 0 1
Output:
r n b q k b n r
p p p p p p p p
. . . . . . . .
. . . . . . . .
. . . . P . . .
. . . . . . . .
P P P P . P P P
R N B Q K B N R
FEN: 3r4/6pp/pNnNpk2/1p6/3pR3/8/PPP2PPK/8 w - - 4 32
Output:
|
. . . r . . . .
. . . . . . p p
p N n N p k . .
. p . . . . . .
. . . p R . . .
. . . . . . . .
P P P . . P P K
. . . . . . . .
|
https://lichess.org/training/00ZSZ
|
[
{
"role": "user",
"content": "Generate an ASCII representation of this chess position.\nOutput ONLY the 8x8 grid. Use uppercase for White, lowercase for Black, dots for empty.\n\nExample:\nFEN: rnbqkbnr/pppppppp/8/8/4P3/8/PPPP1PPP/RNBQKBNR b KQkq - 0 1\nOutput:\nr n b q k b n r\np p p p p p p p\n. . . . . . . .\n. . . . . . . .\n. . . . P . . .\n. . . . . . . .\nP P P P . P P P\nR N B Q K B N R\n\nFEN: 3r4/6pp/pNnNpk2/1p6/3pR3/8/PPP2PPK/8 w - - 4 32\nOutput:"
},
{
"role": "assistant",
"content": ". . . r . . . .\n. . . . . . p p\np N n N p k . .\n. p . . . . . .\n. . . p R . . .\n. . . . . . . .\nP P P . . P P K\n. . . . . . . ."
}
] |
|
2k3rr/1pp1n3/p2qp1Bp/3p3Q/8/2N1P2P/PPPP2Rb/R1B2K2 w - - 0 24
|
piece_positions
|
List all pieces and their positions from this FEN.
Format: "White: pieces" then "Black: pieces", sorted by piece value (K, Q, R, B, N, P).
Example:
FEN: rnbqkbnr/pppppppp/8/8/4P3/8/PPPP1PPP/RNBQKBNR b KQkq - 0 1
Answer:
White: Ke1, Qd1, Ra1, Rh1, Bc1, Bf1, Nb1, Ng1, Pa2, Pb2, Pc2, Pd2, Pe4, Pf2, Pg2, Ph2
Black: Ke8, Qd8, Ra8, Rh8, Bc8, Bf8, Nb8, Ng8, Pa7, Pb7, Pc7, Pd7, Pe7, Pf7, Pg7, Ph7
FEN: 2k3rr/1pp1n3/p2qp1Bp/3p3Q/8/2N1P2P/PPPP2Rb/R1B2K2 w - - 0 24
Answer:
|
White: Kf1, Qh5, Ra1, Rg2, Bc1, Bg6, Nc3, Pa2, Pb2, Pc2, Pd2, Pe3, Ph3
Black: Kc8, Qd6, Rg8, Rh8, Bh2, Ne7, Pa6, Pb7, Pc7, Pd5, Pe6, Ph6
|
https://lichess.org/training/00rzv
|
[
{
"role": "user",
"content": "List all pieces and their positions from this FEN.\nFormat: \"White: pieces\" then \"Black: pieces\", sorted by piece value (K, Q, R, B, N, P).\n\nExample:\nFEN: rnbqkbnr/pppppppp/8/8/4P3/8/PPPP1PPP/RNBQKBNR b KQkq - 0 1\nAnswer:\nWhite: Ke1, Qd1, Ra1, Rh1, Bc1, Bf1, Nb1, Ng1, Pa2, Pb2, Pc2, Pd2, Pe4, Pf2, Pg2, Ph2\nBlack: Ke8, Qd8, Ra8, Rh8, Bc8, Bf8, Nb8, Ng8, Pa7, Pb7, Pc7, Pd7, Pe7, Pf7, Pg7, Ph7\n\nFEN: 2k3rr/1pp1n3/p2qp1Bp/3p3Q/8/2N1P2P/PPPP2Rb/R1B2K2 w - - 0 24\nAnswer:"
},
{
"role": "assistant",
"content": "White: Kf1, Qh5, Ra1, Rg2, Bc1, Bg6, Nc3, Pa2, Pb2, Pc2, Pd2, Pe3, Ph3\nBlack: Kc8, Qd6, Rg8, Rh8, Bh2, Ne7, Pa6, Pb7, Pc7, Pd5, Pe6, Ph6"
}
] |
|
r2qkb1r/pQpbpppp/2n2n2/1N6/2pP4/8/PP2PPPP/R1B1KBNR b KQkq - 2 7
|
legal_captures
|
List all legal captures in this position.
Respond with ONLY the captures in SAN notation, comma-separated. If no captures, respond "none".
Example:
FEN: r1bqkb1r/pppp1ppp/2n2n2/4p3/2B1P3/5N2/PPPP1PPP/RNBQK2R w KQkq - 4 4
Answer: Bxf7+
FEN: r2qkb1r/pQpbpppp/2n2n2/1N6/2pP4/8/PP2PPPP/R1B1KBNR b KQkq - 2 7
Answer:
|
Nxd4
|
https://lichess.org/training/00rva
|
[
{
"role": "user",
"content": "List all legal captures in this position.\nRespond with ONLY the captures in SAN notation, comma-separated. If no captures, respond \"none\".\n\nExample:\nFEN: r1bqkb1r/pppp1ppp/2n2n2/4p3/2B1P3/5N2/PPPP1PPP/RNBQK2R w KQkq - 4 4\nAnswer: Bxf7+\n\nFEN: r2qkb1r/pQpbpppp/2n2n2/1N6/2pP4/8/PP2PPPP/R1B1KBNR b KQkq - 2 7\nAnswer:"
},
{
"role": "assistant",
"content": "Nxd4"
}
] |
|
8/2p5/3b2kp/3p2p1/P3p1K1/1P2R2P/1B4P1/8 w - - 2 36
|
piece_positions
|
List all pieces and their positions from this FEN.
Format: "White: pieces" then "Black: pieces", sorted by piece value (K, Q, R, B, N, P).
Example:
FEN: rnbqkbnr/pppppppp/8/8/4P3/8/PPPP1PPP/RNBQKBNR b KQkq - 0 1
Answer:
White: Ke1, Qd1, Ra1, Rh1, Bc1, Bf1, Nb1, Ng1, Pa2, Pb2, Pc2, Pd2, Pe4, Pf2, Pg2, Ph2
Black: Ke8, Qd8, Ra8, Rh8, Bc8, Bf8, Nb8, Ng8, Pa7, Pb7, Pc7, Pd7, Pe7, Pf7, Pg7, Ph7
FEN: 8/2p5/3b2kp/3p2p1/P3p1K1/1P2R2P/1B4P1/8 w - - 2 36
Answer:
|
White: Kg4, Re3, Bb2, Pa4, Pb3, Pg2, Ph3
Black: Kg6, Bd6, Pc7, Pd5, Pe4, Pg5, Ph6
|
https://lichess.org/training/01Yqt
|
[
{
"role": "user",
"content": "List all pieces and their positions from this FEN.\nFormat: \"White: pieces\" then \"Black: pieces\", sorted by piece value (K, Q, R, B, N, P).\n\nExample:\nFEN: rnbqkbnr/pppppppp/8/8/4P3/8/PPPP1PPP/RNBQKBNR b KQkq - 0 1\nAnswer:\nWhite: Ke1, Qd1, Ra1, Rh1, Bc1, Bf1, Nb1, Ng1, Pa2, Pb2, Pc2, Pd2, Pe4, Pf2, Pg2, Ph2\nBlack: Ke8, Qd8, Ra8, Rh8, Bc8, Bf8, Nb8, Ng8, Pa7, Pb7, Pc7, Pd7, Pe7, Pf7, Pg7, Ph7\n\nFEN: 8/2p5/3b2kp/3p2p1/P3p1K1/1P2R2P/1B4P1/8 w - - 2 36\nAnswer:"
},
{
"role": "assistant",
"content": "White: Kg4, Re3, Bb2, Pa4, Pb3, Pg2, Ph3\nBlack: Kg6, Bd6, Pc7, Pd5, Pe4, Pg5, Ph6"
}
] |
|
3R1rk1/pp3ppp/2p3b1/2n3P1/2B2q1P/5N2/PPP1QP2/4R1K1 b - - 0 23
|
piece_captures
|
List all captures the piece on f8 can make.
Respond with ONLY the captures in SAN notation, comma-separated. If no captures, respond "none".
Example:
FEN: r1bqkb1r/pppp1ppp/2n2n2/4p3/2B1P3/5N2/PPPP1PPP/RNBQK2R w KQkq - 4 4
Piece on: c4
Answer: Bxf7+
FEN: 3R1rk1/pp3ppp/2p3b1/2n3P1/2B2q1P/5N2/PPP1QP2/4R1K1 b - - 0 23
Piece on: f8
Answer:
|
Rxd8
|
https://lichess.org/training/00HEh
|
[
{
"role": "user",
"content": "List all captures the piece on f8 can make.\nRespond with ONLY the captures in SAN notation, comma-separated. If no captures, respond \"none\".\n\nExample:\nFEN: r1bqkb1r/pppp1ppp/2n2n2/4p3/2B1P3/5N2/PPPP1PPP/RNBQK2R w KQkq - 4 4\nPiece on: c4\nAnswer: Bxf7+\n\nFEN: 3R1rk1/pp3ppp/2p3b1/2n3P1/2B2q1P/5N2/PPP1QP2/4R1K1 b - - 0 23\nPiece on: f8\nAnswer:"
},
{
"role": "assistant",
"content": "Rxd8"
}
] |
|
5rqk/1p4p1/B1n3Qp/3p4/8/2P2P2/P6P/6RK b - - 0 29
|
ascii_board
|
Generate an ASCII representation of this chess position.
Output ONLY the 8x8 grid. Use uppercase for White, lowercase for Black, dots for empty.
Example:
FEN: rnbqkbnr/pppppppp/8/8/4P3/8/PPPP1PPP/RNBQKBNR b KQkq - 0 1
Output:
r n b q k b n r
p p p p p p p p
. . . . . . . .
. . . . . . . .
. . . . P . . .
. . . . . . . .
P P P P . P P P
R N B Q K B N R
FEN: 5rqk/1p4p1/B1n3Qp/3p4/8/2P2P2/P6P/6RK b - - 0 29
Output:
|
. . . . . r q k
. p . . . . p .
B . n . . . Q p
. . . p . . . .
. . . . . . . .
. . P . . P . .
P . . . . . . P
. . . . . . R K
|
https://lichess.org/training/017zX
|
[
{
"role": "user",
"content": "Generate an ASCII representation of this chess position.\nOutput ONLY the 8x8 grid. Use uppercase for White, lowercase for Black, dots for empty.\n\nExample:\nFEN: rnbqkbnr/pppppppp/8/8/4P3/8/PPPP1PPP/RNBQKBNR b KQkq - 0 1\nOutput:\nr n b q k b n r\np p p p p p p p\n. . . . . . . .\n. . . . . . . .\n. . . . P . . .\n. . . . . . . .\nP P P P . P P P\nR N B Q K B N R\n\nFEN: 5rqk/1p4p1/B1n3Qp/3p4/8/2P2P2/P6P/6RK b - - 0 29\nOutput:"
},
{
"role": "assistant",
"content": ". . . . . r q k\n. p . . . . p .\nB . n . . . Q p\n. . . p . . . .\n. . . . . . . .\n. . P . . P . .\nP . . . . . . P\n. . . . . . R K"
}
] |
|
5rk1/1bR3q1/pQ6/8/6r1/4R2P/P7/6K1 w - - 0 28
|
piece_captures
|
List all captures the piece on h3 can make.
Respond with ONLY the captures in SAN notation, comma-separated. If no captures, respond "none".
Example:
FEN: r1bqkb1r/pppp1ppp/2n2n2/4p3/2B1P3/5N2/PPPP1PPP/RNBQK2R w KQkq - 4 4
Piece on: c4
Answer: Bxf7+
FEN: 5rk1/1bR3q1/pQ6/8/6r1/4R2P/P7/6K1 w - - 0 28
Piece on: h3
Answer:
|
hxg4
|
https://lichess.org/training/00OOp
|
[
{
"role": "user",
"content": "List all captures the piece on h3 can make.\nRespond with ONLY the captures in SAN notation, comma-separated. If no captures, respond \"none\".\n\nExample:\nFEN: r1bqkb1r/pppp1ppp/2n2n2/4p3/2B1P3/5N2/PPPP1PPP/RNBQK2R w KQkq - 4 4\nPiece on: c4\nAnswer: Bxf7+\n\nFEN: 5rk1/1bR3q1/pQ6/8/6r1/4R2P/P7/6K1 w - - 0 28\nPiece on: h3\nAnswer:"
},
{
"role": "assistant",
"content": "hxg4"
}
] |
|
3r4/1pp3bk/3p3n/p2P3Q/P3p3/4q3/1P2Nr2/R2K2R1 b - - 7 39
|
ascii_board
|
Generate an ASCII representation of this chess position.
Output ONLY the 8x8 grid. Use uppercase for White, lowercase for Black, dots for empty.
Example:
FEN: rnbqkbnr/pppppppp/8/8/4P3/8/PPPP1PPP/RNBQKBNR b KQkq - 0 1
Output:
r n b q k b n r
p p p p p p p p
. . . . . . . .
. . . . . . . .
. . . . P . . .
. . . . . . . .
P P P P . P P P
R N B Q K B N R
FEN: 3r4/1pp3bk/3p3n/p2P3Q/P3p3/4q3/1P2Nr2/R2K2R1 b - - 7 39
Output:
|
. . . r . . . .
. p p . . . b k
. . . p . . . n
p . . P . . . Q
P . . . p . . .
. . . . q . . .
. P . . N r . .
R . . K . . R .
|
https://lichess.org/training/01JIQ
|
[
{
"role": "user",
"content": "Generate an ASCII representation of this chess position.\nOutput ONLY the 8x8 grid. Use uppercase for White, lowercase for Black, dots for empty.\n\nExample:\nFEN: rnbqkbnr/pppppppp/8/8/4P3/8/PPPP1PPP/RNBQKBNR b KQkq - 0 1\nOutput:\nr n b q k b n r\np p p p p p p p\n. . . . . . . .\n. . . . . . . .\n. . . . P . . .\n. . . . . . . .\nP P P P . P P P\nR N B Q K B N R\n\nFEN: 3r4/1pp3bk/3p3n/p2P3Q/P3p3/4q3/1P2Nr2/R2K2R1 b - - 7 39\nOutput:"
},
{
"role": "assistant",
"content": ". . . r . . . .\n. p p . . . b k\n. . . p . . . n\np . . P . . . Q\nP . . . p . . .\n. . . . q . . .\n. P . . N r . .\nR . . K . . R ."
}
] |
|
r2r2k1/pp3ppp/1qn2b2/3R4/4QB2/1P3N2/P4PPP/4R1K1 b - - 0 18
|
piece_positions
|
List all pieces and their positions from this FEN.
Format: "White: pieces" then "Black: pieces", sorted by piece value (K, Q, R, B, N, P).
Example:
FEN: rnbqkbnr/pppppppp/8/8/4P3/8/PPPP1PPP/RNBQKBNR b KQkq - 0 1
Answer:
White: Ke1, Qd1, Ra1, Rh1, Bc1, Bf1, Nb1, Ng1, Pa2, Pb2, Pc2, Pd2, Pe4, Pf2, Pg2, Ph2
Black: Ke8, Qd8, Ra8, Rh8, Bc8, Bf8, Nb8, Ng8, Pa7, Pb7, Pc7, Pd7, Pe7, Pf7, Pg7, Ph7
FEN: r2r2k1/pp3ppp/1qn2b2/3R4/4QB2/1P3N2/P4PPP/4R1K1 b - - 0 18
Answer:
|
White: Kg1, Qe4, Rd5, Re1, Bf4, Nf3, Pa2, Pb3, Pf2, Pg2, Ph2
Black: Kg8, Qb6, Ra8, Rd8, Bf6, Nc6, Pa7, Pb7, Pf7, Pg7, Ph7
|
https://lichess.org/training/00aBq
|
[
{
"role": "user",
"content": "List all pieces and their positions from this FEN.\nFormat: \"White: pieces\" then \"Black: pieces\", sorted by piece value (K, Q, R, B, N, P).\n\nExample:\nFEN: rnbqkbnr/pppppppp/8/8/4P3/8/PPPP1PPP/RNBQKBNR b KQkq - 0 1\nAnswer:\nWhite: Ke1, Qd1, Ra1, Rh1, Bc1, Bf1, Nb1, Ng1, Pa2, Pb2, Pc2, Pd2, Pe4, Pf2, Pg2, Ph2\nBlack: Ke8, Qd8, Ra8, Rh8, Bc8, Bf8, Nb8, Ng8, Pa7, Pb7, Pc7, Pd7, Pe7, Pf7, Pg7, Ph7\n\nFEN: r2r2k1/pp3ppp/1qn2b2/3R4/4QB2/1P3N2/P4PPP/4R1K1 b - - 0 18\nAnswer:"
},
{
"role": "assistant",
"content": "White: Kg1, Qe4, Rd5, Re1, Bf4, Nf3, Pa2, Pb3, Pf2, Pg2, Ph2\nBlack: Kg8, Qb6, Ra8, Rd8, Bf6, Nc6, Pa7, Pb7, Pf7, Pg7, Ph7"
}
] |
|
6k1/5pp1/p1N1b3/1n5p/1B4P1/P4P1P/2K5/8 b - - 2 42
|
legal_captures
|
List all legal captures in this position.
Respond with ONLY the captures in SAN notation, comma-separated. If no captures, respond "none".
Example:
FEN: r1bqkb1r/pppp1ppp/2n2n2/4p3/2B1P3/5N2/PPPP1PPP/RNBQK2R w KQkq - 4 4
Answer: Bxf7+
FEN: 6k1/5pp1/p1N1b3/1n5p/1B4P1/P4P1P/2K5/8 b - - 2 42
Answer:
|
Bxg4, Nxa3+, hxg4
|
https://lichess.org/training/00TAb
|
[
{
"role": "user",
"content": "List all legal captures in this position.\nRespond with ONLY the captures in SAN notation, comma-separated. If no captures, respond \"none\".\n\nExample:\nFEN: r1bqkb1r/pppp1ppp/2n2n2/4p3/2B1P3/5N2/PPPP1PPP/RNBQK2R w KQkq - 4 4\nAnswer: Bxf7+\n\nFEN: 6k1/5pp1/p1N1b3/1n5p/1B4P1/P4P1P/2K5/8 b - - 2 42\nAnswer:"
},
{
"role": "assistant",
"content": "Bxg4, Nxa3+, hxg4"
}
] |
|
2r5/3Qnk1p/8/4B2b/Pp2p3/1P2P3/5PPP/3R2K1 w - - 3 32
|
puzzle
|
Find the best move for this chess puzzle. Respond with ONLY the move in UCI notation (e.g., e2e4).
Example 1:
FEN: 8/1r6/8/5k1p/2B4K/1P6/8/1R6 w - - 1 44
Answer: h4h5
Example 2:
FEN: 1r3rk1/pbp2p1p/1p4pb/3qp3/1n6/PP1PP1PP/NBPQ3K/R4RN1 w - - 2 18
Answer: a2b4
Now solve:
FEN: 2r5/3Qnk1p/8/4B2b/Pp2p3/1P2P3/5PPP/3R2K1 w - - 3 32
Answer:
|
d1d6
|
https://lichess.org/training/01Vbe
|
[
{
"role": "user",
"content": "Find the best move for this chess puzzle. Respond with ONLY the move in UCI notation (e.g., e2e4).\n\nExample 1:\nFEN: 8/1r6/8/5k1p/2B4K/1P6/8/1R6 w - - 1 44\nAnswer: h4h5\n\nExample 2:\nFEN: 1r3rk1/pbp2p1p/1p4pb/3qp3/1n6/PP1PP1PP/NBPQ3K/R4RN1 w - - 2 18\nAnswer: a2b4\n\nNow solve:\nFEN: 2r5/3Qnk1p/8/4B2b/Pp2p3/1P2P3/5PPP/3R2K1 w - - 3 32\nAnswer:"
},
{
"role": "assistant",
"content": "d1d6"
}
] |
|
1rb2rk1/4bppp/p1n1p3/1p1qP3/7N/P5P1/1PQ2PBP/R1B2RK1 b - - 1 15
|
puzzle
|
Find the best move for this chess puzzle. Respond with ONLY the move in UCI notation (e.g., e2e4).
Example 1:
FEN: 8/1r6/8/5k1p/2B4K/1P6/8/1R6 w - - 1 44
Answer: h4h5
Example 2:
FEN: 1r3rk1/pbp2p1p/1p4pb/3qp3/1n6/PP1PP1PP/NBPQ3K/R4RN1 w - - 2 18
Answer: a2b4
Now solve:
FEN: 1rb2rk1/4bppp/p1n1p3/1p1qP3/7N/P5P1/1PQ2PBP/R1B2RK1 b - - 1 15
Answer:
|
d5c5
|
https://lichess.org/training/00SyL
|
[
{
"role": "user",
"content": "Find the best move for this chess puzzle. Respond with ONLY the move in UCI notation (e.g., e2e4).\n\nExample 1:\nFEN: 8/1r6/8/5k1p/2B4K/1P6/8/1R6 w - - 1 44\nAnswer: h4h5\n\nExample 2:\nFEN: 1r3rk1/pbp2p1p/1p4pb/3qp3/1n6/PP1PP1PP/NBPQ3K/R4RN1 w - - 2 18\nAnswer: a2b4\n\nNow solve:\nFEN: 1rb2rk1/4bppp/p1n1p3/1p1qP3/7N/P5P1/1PQ2PBP/R1B2RK1 b - - 1 15\nAnswer:"
},
{
"role": "assistant",
"content": "d5c5"
}
] |
|
8/1pB5/3P2k1/3r2p1/8/4PK1P/7P/8 b - - 2 42
|
ascii_board
|
Generate an ASCII representation of this chess position.
Output ONLY the 8x8 grid. Use uppercase for White, lowercase for Black, dots for empty.
Example:
FEN: rnbqkbnr/pppppppp/8/8/4P3/8/PPPP1PPP/RNBQKBNR b KQkq - 0 1
Output:
r n b q k b n r
p p p p p p p p
. . . . . . . .
. . . . . . . .
. . . . P . . .
. . . . . . . .
P P P P . P P P
R N B Q K B N R
FEN: 8/1pB5/3P2k1/3r2p1/8/4PK1P/7P/8 b - - 2 42
Output:
|
. . . . . . . .
. p B . . . . .
. . . P . . k .
. . . r . . p .
. . . . . . . .
. . . . P K . P
. . . . . . . P
. . . . . . . .
|
https://lichess.org/training/00itj
|
[
{
"role": "user",
"content": "Generate an ASCII representation of this chess position.\nOutput ONLY the 8x8 grid. Use uppercase for White, lowercase for Black, dots for empty.\n\nExample:\nFEN: rnbqkbnr/pppppppp/8/8/4P3/8/PPPP1PPP/RNBQKBNR b KQkq - 0 1\nOutput:\nr n b q k b n r\np p p p p p p p\n. . . . . . . .\n. . . . . . . .\n. . . . P . . .\n. . . . . . . .\nP P P P . P P P\nR N B Q K B N R\n\nFEN: 8/1pB5/3P2k1/3r2p1/8/4PK1P/7P/8 b - - 2 42\nOutput:"
},
{
"role": "assistant",
"content": ". . . . . . . .\n. p B . . . . .\n. . . P . . k .\n. . . r . . p .\n. . . . . . . .\n. . . . P K . P\n. . . . . . . P\n. . . . . . . ."
}
] |
|
1r6/8/3bkN2/2p5/P2pp3/3P3P/R4PP1/6K1 w - - 2 47
|
piece_positions
|
List all pieces and their positions from this FEN.
Format: "White: pieces" then "Black: pieces", sorted by piece value (K, Q, R, B, N, P).
Example:
FEN: rnbqkbnr/pppppppp/8/8/4P3/8/PPPP1PPP/RNBQKBNR b KQkq - 0 1
Answer:
White: Ke1, Qd1, Ra1, Rh1, Bc1, Bf1, Nb1, Ng1, Pa2, Pb2, Pc2, Pd2, Pe4, Pf2, Pg2, Ph2
Black: Ke8, Qd8, Ra8, Rh8, Bc8, Bf8, Nb8, Ng8, Pa7, Pb7, Pc7, Pd7, Pe7, Pf7, Pg7, Ph7
FEN: 1r6/8/3bkN2/2p5/P2pp3/3P3P/R4PP1/6K1 w - - 2 47
Answer:
|
White: Kg1, Ra2, Nf6, Pa4, Pd3, Pf2, Pg2, Ph3
Black: Ke6, Rb8, Bd6, Pc5, Pd4, Pe4
|
https://lichess.org/training/01BjV
|
[
{
"role": "user",
"content": "List all pieces and their positions from this FEN.\nFormat: \"White: pieces\" then \"Black: pieces\", sorted by piece value (K, Q, R, B, N, P).\n\nExample:\nFEN: rnbqkbnr/pppppppp/8/8/4P3/8/PPPP1PPP/RNBQKBNR b KQkq - 0 1\nAnswer:\nWhite: Ke1, Qd1, Ra1, Rh1, Bc1, Bf1, Nb1, Ng1, Pa2, Pb2, Pc2, Pd2, Pe4, Pf2, Pg2, Ph2\nBlack: Ke8, Qd8, Ra8, Rh8, Bc8, Bf8, Nb8, Ng8, Pa7, Pb7, Pc7, Pd7, Pe7, Pf7, Pg7, Ph7\n\nFEN: 1r6/8/3bkN2/2p5/P2pp3/3P3P/R4PP1/6K1 w - - 2 47\nAnswer:"
},
{
"role": "assistant",
"content": "White: Kg1, Ra2, Nf6, Pa4, Pd3, Pf2, Pg2, Ph3\nBlack: Ke6, Rb8, Bd6, Pc5, Pd4, Pe4"
}
] |
|
2r1rk2/pp1R3p/1b4p1/6B1/4p2P/1B6/PP3PP1/6K1 b - - 0 31
|
ascii_board
|
Generate an ASCII representation of this chess position.
Output ONLY the 8x8 grid. Use uppercase for White, lowercase for Black, dots for empty.
Example:
FEN: rnbqkbnr/pppppppp/8/8/4P3/8/PPPP1PPP/RNBQKBNR b KQkq - 0 1
Output:
r n b q k b n r
p p p p p p p p
. . . . . . . .
. . . . . . . .
. . . . P . . .
. . . . . . . .
P P P P . P P P
R N B Q K B N R
FEN: 2r1rk2/pp1R3p/1b4p1/6B1/4p2P/1B6/PP3PP1/6K1 b - - 0 31
Output:
|
. . r . r k . .
p p . R . . . p
. b . . . . p .
. . . . . . B .
. . . . p . . P
. B . . . . . .
P P . . . P P .
. . . . . . K .
|
https://lichess.org/training/00ySR
|
[
{
"role": "user",
"content": "Generate an ASCII representation of this chess position.\nOutput ONLY the 8x8 grid. Use uppercase for White, lowercase for Black, dots for empty.\n\nExample:\nFEN: rnbqkbnr/pppppppp/8/8/4P3/8/PPPP1PPP/RNBQKBNR b KQkq - 0 1\nOutput:\nr n b q k b n r\np p p p p p p p\n. . . . . . . .\n. . . . . . . .\n. . . . P . . .\n. . . . . . . .\nP P P P . P P P\nR N B Q K B N R\n\nFEN: 2r1rk2/pp1R3p/1b4p1/6B1/4p2P/1B6/PP3PP1/6K1 b - - 0 31\nOutput:"
},
{
"role": "assistant",
"content": ". . r . r k . .\np p . R . . . p\n. b . . . . p .\n. . . . . . B .\n. . . . p . . P\n. B . . . . . .\nP P . . . P P .\n. . . . . . K ."
}
] |
|
8/1P3ppp/8/8/8/2pk3P/3p2P1/3K4 w - - 0 52
|
ascii_board
|
Generate an ASCII representation of this chess position.
Output ONLY the 8x8 grid. Use uppercase for White, lowercase for Black, dots for empty.
Example:
FEN: rnbqkbnr/pppppppp/8/8/4P3/8/PPPP1PPP/RNBQKBNR b KQkq - 0 1
Output:
r n b q k b n r
p p p p p p p p
. . . . . . . .
. . . . . . . .
. . . . P . . .
. . . . . . . .
P P P P . P P P
R N B Q K B N R
FEN: 8/1P3ppp/8/8/8/2pk3P/3p2P1/3K4 w - - 0 52
Output:
|
. . . . . . . .
. P . . . p p p
. . . . . . . .
. . . . . . . .
. . . . . . . .
. . p k . . . P
. . . p . . P .
. . . K . . . .
|
https://lichess.org/training/007fJ
|
[
{
"role": "user",
"content": "Generate an ASCII representation of this chess position.\nOutput ONLY the 8x8 grid. Use uppercase for White, lowercase for Black, dots for empty.\n\nExample:\nFEN: rnbqkbnr/pppppppp/8/8/4P3/8/PPPP1PPP/RNBQKBNR b KQkq - 0 1\nOutput:\nr n b q k b n r\np p p p p p p p\n. . . . . . . .\n. . . . . . . .\n. . . . P . . .\n. . . . . . . .\nP P P P . P P P\nR N B Q K B N R\n\nFEN: 8/1P3ppp/8/8/8/2pk3P/3p2P1/3K4 w - - 0 52\nOutput:"
},
{
"role": "assistant",
"content": ". . . . . . . .\n. P . . . p p p\n. . . . . . . .\n. . . . . . . .\n. . . . . . . .\n. . p k . . . P\n. . . p . . P .\n. . . K . . . ."
}
] |
|
8/1k6/p7/2Q4P/p2K1P2/1q6/8/8 w - - 4 55
|
legal_moves
|
List all legal moves for the piece on f4 in this position.
Respond with ONLY the moves in SAN notation, comma-separated.
Example:
FEN: rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1
Piece on: b1
Answer: Na3, Nc3
FEN: 8/1k6/p7/2Q4P/p2K1P2/1q6/8/8 w - - 4 55
Piece on: f4
Answer:
|
f5
|
https://lichess.org/training/015Ft
|
[
{
"role": "user",
"content": "List all legal moves for the piece on f4 in this position.\nRespond with ONLY the moves in SAN notation, comma-separated.\n\nExample:\nFEN: rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1\nPiece on: b1\nAnswer: Na3, Nc3\n\nFEN: 8/1k6/p7/2Q4P/p2K1P2/1q6/8/8 w - - 4 55\nPiece on: f4\nAnswer:"
},
{
"role": "assistant",
"content": "f5"
}
] |
|
6k1/1p2pp1p/p2p2p1/3P4/3BP3/P4P2/P5PP/2n3K1 w - - 0 23
|
piece_positions
|
List all pieces and their positions from this FEN.
Format: "White: pieces" then "Black: pieces", sorted by piece value (K, Q, R, B, N, P).
Example:
FEN: rnbqkbnr/pppppppp/8/8/4P3/8/PPPP1PPP/RNBQKBNR b KQkq - 0 1
Answer:
White: Ke1, Qd1, Ra1, Rh1, Bc1, Bf1, Nb1, Ng1, Pa2, Pb2, Pc2, Pd2, Pe4, Pf2, Pg2, Ph2
Black: Ke8, Qd8, Ra8, Rh8, Bc8, Bf8, Nb8, Ng8, Pa7, Pb7, Pc7, Pd7, Pe7, Pf7, Pg7, Ph7
FEN: 6k1/1p2pp1p/p2p2p1/3P4/3BP3/P4P2/P5PP/2n3K1 w - - 0 23
Answer:
|
White: Kg1, Bd4, Pa2, Pa3, Pd5, Pe4, Pf3, Pg2, Ph2
Black: Kg8, Nc1, Pa6, Pb7, Pd6, Pe7, Pf7, Pg6, Ph7
|
https://lichess.org/training/00rcR
|
[
{
"role": "user",
"content": "List all pieces and their positions from this FEN.\nFormat: \"White: pieces\" then \"Black: pieces\", sorted by piece value (K, Q, R, B, N, P).\n\nExample:\nFEN: rnbqkbnr/pppppppp/8/8/4P3/8/PPPP1PPP/RNBQKBNR b KQkq - 0 1\nAnswer:\nWhite: Ke1, Qd1, Ra1, Rh1, Bc1, Bf1, Nb1, Ng1, Pa2, Pb2, Pc2, Pd2, Pe4, Pf2, Pg2, Ph2\nBlack: Ke8, Qd8, Ra8, Rh8, Bc8, Bf8, Nb8, Ng8, Pa7, Pb7, Pc7, Pd7, Pe7, Pf7, Pg7, Ph7\n\nFEN: 6k1/1p2pp1p/p2p2p1/3P4/3BP3/P4P2/P5PP/2n3K1 w - - 0 23\nAnswer:"
},
{
"role": "assistant",
"content": "White: Kg1, Bd4, Pa2, Pa3, Pd5, Pe4, Pf3, Pg2, Ph2\nBlack: Kg8, Nc1, Pa6, Pb7, Pd6, Pe7, Pf7, Pg6, Ph7"
}
] |
|
r3r1k1/ppp2p2/1b5Q/3PP2n/2B3bq/2N5/PP4PP/R4R1K w - - 1 18
|
ascii_board
|
Generate an ASCII representation of this chess position.
Output ONLY the 8x8 grid. Use uppercase for White, lowercase for Black, dots for empty.
Example:
FEN: rnbqkbnr/pppppppp/8/8/4P3/8/PPPP1PPP/RNBQKBNR b KQkq - 0 1
Output:
r n b q k b n r
p p p p p p p p
. . . . . . . .
. . . . . . . .
. . . . P . . .
. . . . . . . .
P P P P . P P P
R N B Q K B N R
FEN: r3r1k1/ppp2p2/1b5Q/3PP2n/2B3bq/2N5/PP4PP/R4R1K w - - 1 18
Output:
|
r . . . r . k .
p p p . . p . .
. b . . . . . Q
. . . P P . . n
. . B . . . b q
. . N . . . . .
P P . . . . P P
R . . . . R . K
|
https://lichess.org/training/00jPw
|
[
{
"role": "user",
"content": "Generate an ASCII representation of this chess position.\nOutput ONLY the 8x8 grid. Use uppercase for White, lowercase for Black, dots for empty.\n\nExample:\nFEN: rnbqkbnr/pppppppp/8/8/4P3/8/PPPP1PPP/RNBQKBNR b KQkq - 0 1\nOutput:\nr n b q k b n r\np p p p p p p p\n. . . . . . . .\n. . . . . . . .\n. . . . P . . .\n. . . . . . . .\nP P P P . P P P\nR N B Q K B N R\n\nFEN: r3r1k1/ppp2p2/1b5Q/3PP2n/2B3bq/2N5/PP4PP/R4R1K w - - 1 18\nOutput:"
},
{
"role": "assistant",
"content": "r . . . r . k .\np p p . . p . .\n. b . . . . . Q\n. . . P P . . n\n. . B . . . b q\n. . N . . . . .\nP P . . . . P P\nR . . . . R . K"
}
] |
|
r3r1k1/1pp3pp/p2p4/2qPnR2/4Q3/P5NP/1P4PK/R7 b - - 3 24
|
legal_moves
|
List all legal moves for the piece on c7 in this position.
Respond with ONLY the moves in SAN notation, comma-separated.
Example:
FEN: rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1
Piece on: b1
Answer: Na3, Nc3
FEN: r3r1k1/1pp3pp/p2p4/2qPnR2/4Q3/P5NP/1P4PK/R7 b - - 3 24
Piece on: c7
Answer:
|
c6
|
https://lichess.org/training/01LLU
|
[
{
"role": "user",
"content": "List all legal moves for the piece on c7 in this position.\nRespond with ONLY the moves in SAN notation, comma-separated.\n\nExample:\nFEN: rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1\nPiece on: b1\nAnswer: Na3, Nc3\n\nFEN: r3r1k1/1pp3pp/p2p4/2qPnR2/4Q3/P5NP/1P4PK/R7 b - - 3 24\nPiece on: c7\nAnswer:"
},
{
"role": "assistant",
"content": "c6"
}
] |
|
8/8/2k3P1/R7/P2p2rp/3K4/8/8 b - - 0 45
|
legal_captures
|
List all legal captures in this position.
Respond with ONLY the captures in SAN notation, comma-separated. If no captures, respond "none".
Example:
FEN: r1bqkb1r/pppp1ppp/2n2n2/4p3/2B1P3/5N2/PPPP1PPP/RNBQK2R w KQkq - 4 4
Answer: Bxf7+
FEN: 8/8/2k3P1/R7/P2p2rp/3K4/8/8 b - - 0 45
Answer:
|
Rxg6
|
https://lichess.org/training/00lap
|
[
{
"role": "user",
"content": "List all legal captures in this position.\nRespond with ONLY the captures in SAN notation, comma-separated. If no captures, respond \"none\".\n\nExample:\nFEN: r1bqkb1r/pppp1ppp/2n2n2/4p3/2B1P3/5N2/PPPP1PPP/RNBQK2R w KQkq - 4 4\nAnswer: Bxf7+\n\nFEN: 8/8/2k3P1/R7/P2p2rp/3K4/8/8 b - - 0 45\nAnswer:"
},
{
"role": "assistant",
"content": "Rxg6"
}
] |
|
r2r2k1/pp3ppp/1qn2b2/3R4/4QB2/1P3N2/P4PPP/4R1K1 b - - 0 18
|
piece_captures
|
List all captures the piece on d8 can make.
Respond with ONLY the captures in SAN notation, comma-separated. If no captures, respond "none".
Example:
FEN: r1bqkb1r/pppp1ppp/2n2n2/4p3/2B1P3/5N2/PPPP1PPP/RNBQK2R w KQkq - 4 4
Piece on: c4
Answer: Bxf7+
FEN: r2r2k1/pp3ppp/1qn2b2/3R4/4QB2/1P3N2/P4PPP/4R1K1 b - - 0 18
Piece on: d8
Answer:
|
Rxd5
|
https://lichess.org/training/00aBq
|
[
{
"role": "user",
"content": "List all captures the piece on d8 can make.\nRespond with ONLY the captures in SAN notation, comma-separated. If no captures, respond \"none\".\n\nExample:\nFEN: r1bqkb1r/pppp1ppp/2n2n2/4p3/2B1P3/5N2/PPPP1PPP/RNBQK2R w KQkq - 4 4\nPiece on: c4\nAnswer: Bxf7+\n\nFEN: r2r2k1/pp3ppp/1qn2b2/3R4/4QB2/1P3N2/P4PPP/4R1K1 b - - 0 18\nPiece on: d8\nAnswer:"
},
{
"role": "assistant",
"content": "Rxd5"
}
] |
|
r1b1kbnN/ppp3pp/3p4/8/8/2NP4/PPP4P/R2QKBq1 b Qq - 3 15
|
ascii_board
|
Generate an ASCII representation of this chess position.
Output ONLY the 8x8 grid. Use uppercase for White, lowercase for Black, dots for empty.
Example:
FEN: rnbqkbnr/pppppppp/8/8/4P3/8/PPPP1PPP/RNBQKBNR b KQkq - 0 1
Output:
r n b q k b n r
p p p p p p p p
. . . . . . . .
. . . . . . . .
. . . . P . . .
. . . . . . . .
P P P P . P P P
R N B Q K B N R
FEN: r1b1kbnN/ppp3pp/3p4/8/8/2NP4/PPP4P/R2QKBq1 b Qq - 3 15
Output:
|
r . b . k b n N
p p p . . . p p
. . . p . . . .
. . . . . . . .
. . . . . . . .
. . N P . . . .
P P P . . . . P
R . . Q K B q .
|
https://lichess.org/training/00pVS
|
[
{
"role": "user",
"content": "Generate an ASCII representation of this chess position.\nOutput ONLY the 8x8 grid. Use uppercase for White, lowercase for Black, dots for empty.\n\nExample:\nFEN: rnbqkbnr/pppppppp/8/8/4P3/8/PPPP1PPP/RNBQKBNR b KQkq - 0 1\nOutput:\nr n b q k b n r\np p p p p p p p\n. . . . . . . .\n. . . . . . . .\n. . . . P . . .\n. . . . . . . .\nP P P P . P P P\nR N B Q K B N R\n\nFEN: r1b1kbnN/ppp3pp/3p4/8/8/2NP4/PPP4P/R2QKBq1 b Qq - 3 15\nOutput:"
},
{
"role": "assistant",
"content": "r . b . k b n N\np p p . . . p p\n. . . p . . . .\n. . . . . . . .\n. . . . . . . .\n. . N P . . . .\nP P P . . . . P\nR . . Q K B q ."
}
] |
|
rn2qr1k/p2n2pp/1p6/2bRp1B1/2B3Q1/7P/PPP2PP1/1K1R4 b - - 1 17
|
legal_moves
|
List all legal moves for the piece on d7 in this position.
Respond with ONLY the moves in SAN notation, comma-separated.
Example:
FEN: rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1
Piece on: b1
Answer: Na3, Nc3
FEN: rn2qr1k/p2n2pp/1p6/2bRp1B1/2B3Q1/7P/PPP2PP1/1K1R4 b - - 1 17
Piece on: d7
Answer:
|
Nf6
|
https://lichess.org/training/00fvL
|
[
{
"role": "user",
"content": "List all legal moves for the piece on d7 in this position.\nRespond with ONLY the moves in SAN notation, comma-separated.\n\nExample:\nFEN: rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1\nPiece on: b1\nAnswer: Na3, Nc3\n\nFEN: rn2qr1k/p2n2pp/1p6/2bRp1B1/2B3Q1/7P/PPP2PP1/1K1R4 b - - 1 17\nPiece on: d7\nAnswer:"
},
{
"role": "assistant",
"content": "Nf6"
}
] |
|
8/8/8/1P5R/4bk2/4R2P/5P2/r5K1 w - - 1 43
|
puzzle
|
Find the best move for this chess puzzle. Respond with ONLY the move in UCI notation (e.g., e2e4).
Example 1:
FEN: 8/1r6/8/5k1p/2B4K/1P6/8/1R6 w - - 1 44
Answer: h4h5
Example 2:
FEN: 1r3rk1/pbp2p1p/1p4pb/3qp3/1n6/PP1PP1PP/NBPQ3K/R4RN1 w - - 2 18
Answer: a2b4
Now solve:
FEN: 8/8/8/1P5R/4bk2/4R2P/5P2/r5K1 w - - 1 43
Answer:
|
g1h2
|
https://lichess.org/training/01RuT
|
[
{
"role": "user",
"content": "Find the best move for this chess puzzle. Respond with ONLY the move in UCI notation (e.g., e2e4).\n\nExample 1:\nFEN: 8/1r6/8/5k1p/2B4K/1P6/8/1R6 w - - 1 44\nAnswer: h4h5\n\nExample 2:\nFEN: 1r3rk1/pbp2p1p/1p4pb/3qp3/1n6/PP1PP1PP/NBPQ3K/R4RN1 w - - 2 18\nAnswer: a2b4\n\nNow solve:\nFEN: 8/8/8/1P5R/4bk2/4R2P/5P2/r5K1 w - - 1 43\nAnswer:"
},
{
"role": "assistant",
"content": "g1h2"
}
] |
|
b4b1r/3k1ppp/p2p4/1p2p3/3nq3/N1P1B3/PP3PPP/R2Q1RK1 w - - 1 16
|
legal_moves
|
List all legal moves for the piece on d1 in this position.
Respond with ONLY the moves in SAN notation, comma-separated.
Example:
FEN: rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1
Piece on: b1
Answer: Na3, Nc3
FEN: b4b1r/3k1ppp/p2p4/1p2p3/3nq3/N1P1B3/PP3PPP/R2Q1RK1 w - - 1 16
Piece on: d1
Answer:
|
Qh5, Qg4+, Qxd4, Qa4, Qf3, Qd3, Qb3, Qe2, Qd2, Qc2, Qe1, Qc1, Qb1
|
https://lichess.org/training/00DWo
|
[
{
"role": "user",
"content": "List all legal moves for the piece on d1 in this position.\nRespond with ONLY the moves in SAN notation, comma-separated.\n\nExample:\nFEN: rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1\nPiece on: b1\nAnswer: Na3, Nc3\n\nFEN: b4b1r/3k1ppp/p2p4/1p2p3/3nq3/N1P1B3/PP3PPP/R2Q1RK1 w - - 1 16\nPiece on: d1\nAnswer:"
},
{
"role": "assistant",
"content": "Qh5, Qg4+, Qxd4, Qa4, Qf3, Qd3, Qb3, Qe2, Qd2, Qc2, Qe1, Qc1, Qb1"
}
] |
|
r1bq1rk1/4bppp/p1n5/3P4/Pp6/3B1N2/1B3PPP/R2Q1RK1 b - - 0 17
|
legal_captures
|
List all legal captures in this position.
Respond with ONLY the captures in SAN notation, comma-separated. If no captures, respond "none".
Example:
FEN: r1bqkb1r/pppp1ppp/2n2n2/4p3/2B1P3/5N2/PPPP1PPP/RNBQK2R w KQkq - 4 4
Answer: Bxf7+
FEN: r1bq1rk1/4bppp/p1n5/3P4/Pp6/3B1N2/1B3PPP/R2Q1RK1 b - - 0 17
Answer:
|
Qxd5
|
https://lichess.org/training/00E29
|
[
{
"role": "user",
"content": "List all legal captures in this position.\nRespond with ONLY the captures in SAN notation, comma-separated. If no captures, respond \"none\".\n\nExample:\nFEN: r1bqkb1r/pppp1ppp/2n2n2/4p3/2B1P3/5N2/PPPP1PPP/RNBQK2R w KQkq - 4 4\nAnswer: Bxf7+\n\nFEN: r1bq1rk1/4bppp/p1n5/3P4/Pp6/3B1N2/1B3PPP/R2Q1RK1 b - - 0 17\nAnswer:"
},
{
"role": "assistant",
"content": "Qxd5"
}
] |
|
2kr3r/2p2p2/p4q2/1p6/P2PQ3/1PP3p1/6PP/3RR1K1 w - - 0 28
|
puzzle
|
Find the best move for this chess puzzle. Respond with ONLY the move in UCI notation (e.g., e2e4).
Example 1:
FEN: 8/1r6/8/5k1p/2B4K/1P6/8/1R6 w - - 1 44
Answer: h4h5
Example 2:
FEN: 1r3rk1/pbp2p1p/1p4pb/3qp3/1n6/PP1PP1PP/NBPQ3K/R4RN1 w - - 2 18
Answer: a2b4
Now solve:
FEN: 2kr3r/2p2p2/p4q2/1p6/P2PQ3/1PP3p1/6PP/3RR1K1 w - - 0 28
Answer:
|
h2h3
|
https://lichess.org/training/00hdN
|
[
{
"role": "user",
"content": "Find the best move for this chess puzzle. Respond with ONLY the move in UCI notation (e.g., e2e4).\n\nExample 1:\nFEN: 8/1r6/8/5k1p/2B4K/1P6/8/1R6 w - - 1 44\nAnswer: h4h5\n\nExample 2:\nFEN: 1r3rk1/pbp2p1p/1p4pb/3qp3/1n6/PP1PP1PP/NBPQ3K/R4RN1 w - - 2 18\nAnswer: a2b4\n\nNow solve:\nFEN: 2kr3r/2p2p2/p4q2/1p6/P2PQ3/1PP3p1/6PP/3RR1K1 w - - 0 28\nAnswer:"
},
{
"role": "assistant",
"content": "h2h3"
}
] |
|
4r1k1/p1p2ppp/2p1r3/3q4/P2b4/1P1PB3/2Q2PPP/2R1R1K1 w - - 0 21
|
legal_captures
|
List all legal captures in this position.
Respond with ONLY the captures in SAN notation, comma-separated. If no captures, respond "none".
Example:
FEN: r1bqkb1r/pppp1ppp/2n2n2/4p3/2B1P3/5N2/PPPP1PPP/RNBQK2R w KQkq - 4 4
Answer: Bxf7+
FEN: 4r1k1/p1p2ppp/2p1r3/3q4/P2b4/1P1PB3/2Q2PPP/2R1R1K1 w - - 0 21
Answer:
|
Bxd4, Qxc6
|
https://lichess.org/training/00eNe
|
[
{
"role": "user",
"content": "List all legal captures in this position.\nRespond with ONLY the captures in SAN notation, comma-separated. If no captures, respond \"none\".\n\nExample:\nFEN: r1bqkb1r/pppp1ppp/2n2n2/4p3/2B1P3/5N2/PPPP1PPP/RNBQK2R w KQkq - 4 4\nAnswer: Bxf7+\n\nFEN: 4r1k1/p1p2ppp/2p1r3/3q4/P2b4/1P1PB3/2Q2PPP/2R1R1K1 w - - 0 21\nAnswer:"
},
{
"role": "assistant",
"content": "Bxd4, Qxc6"
}
] |
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