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, ... | |
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, ... | |
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. . . . . .... | |
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 so... | |
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, ... | |
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/2p2P2/1p2p3/4P... | |
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, ... | |
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. . . . . .... | |
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. . . . . .... | |
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 so... | |
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/P... | |
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, ... | |
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. . . . . .... | |
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/p1b... | |
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/1P3PP... | |
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. . . . . .... | |
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/8/2NP... | |
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/P1N5/1P3K2/6... | |
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/ppp2pp1/3p4/1P2p3/2P... | |
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... | |
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 so... | |
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... | |
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/4R1... | |
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 so... | |
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: 1r3rk1/1pq2... | |
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... | |
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/PP... | |
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/RN3... | |
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. . . . . .... | |
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\nPie... | |
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, ... | |
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/PPP... | |
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 so... | |
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... | |
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, ... | |
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 ... | |
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, ... | |
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... | |
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 so... | |
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. . . . . .... | |
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... | |
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. . . . . .... | |
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 so... | |
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: 8/1k6/1pn1R... | |
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 - - ... | |
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, ... | |
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, ... | |
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/PP1B1P... | |
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 so... | |
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/pp3... | |
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 - ... | |
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, ... | |
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, ... | |
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/... | |
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 so... | |
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/p... | |
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 so... | |
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 so... | |
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. . . . . .... | |
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 so... | |
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/PPPRQ3/1K3... | |
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 so... | |
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 so... | |
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/... | |
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/pp3... | |
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/... | |
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\n... | |
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. . . . . .... | |
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 so... | |
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... | |
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 so... | |
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. . . . . .... | |
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, ... | |
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/... | |
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, ... | |
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/pp3p... | |
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. . . . . .... | |
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... | |
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. . . . . .... | |
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, ... | |
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/... | |
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 so... | |
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 so... | |
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. . . . . .... | |
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, ... | |
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. . . . . .... | |
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. . . . . .... | |
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\n... | |
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, ... | |
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. . . . . .... | |
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/... | |
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... | |
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/pp3p... | |
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. . . . . .... | |
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/PPP2P... | |
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 so... | |
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/PP3PP... | |
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... | |
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 so... | |
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/P2b... |
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