Datasets:

bonna46

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ChessDatawithNLAndNonNLFormat

like 2

1nb2br1/1qp5/rp2kp2/p3pnNp/P2P3P/1PP1BP2/3KP1P1/R2Q1BR1 b - - 0 18

f6g5

FEN state: 1nb2br1/1qp5/rp2kp2/p3pnNp/P2P3P/1PP1BP2/3KP1P1/R2Q1BR1 b - - 0 18 ; Best movef6g5

The current state of the chess board is: Black knight at b8, black bishop at c8, black bishop at f8 and black rook at g8. Black queen at b7 and black pawn at c7. Black rook at a6, black pawn at b6, black king at e6 and black pawn at f6. Black pawn at a5, black pawn at e5, black knight at f5, white knight at g5 and black pawn at h5. White pawn at a4, white pawn at d4 and white pawn at h4. White pawn at b3, white pawn at c3, white bishop at e3 and white pawn at f3. White king at d2, white pawn at e2 and white pawn at g2. White rook at a1, white queen at d1, white bishop at f1 and white rook at g1. Both players have exhausted their castles. Half move number is 0. Full move number is 18. Black to move.

the output is f6g5

Input: The current state of the chess board is: Black knight at b8, black bishop at c8, black bishop at f8 and black rook at g8. Black queen at b7 and black pawn at c7. Black rook at a6, black pawn at b6, black king at e6 and black pawn at f6. Black pawn at a5, black pawn at e5, black knight at f5, white knight at g5 and black pawn at h5. White pawn at a4, white pawn at d4 and white pawn at h4. White pawn at b3, white pawn at c3, white bishop at e3 and white pawn at f3. White king at d2, white pawn at e2 and white pawn at g2. White rook at a1, white queen at d1, white bishop at f1 and white rook at g1. Both players have exhausted their castles. Half move number is 0. Full move number is 18. Black to move. ; Output: Move from f6 to g5.

r1b1k1nr/p2p2p1/3b4/q1p1pp1p/1n1N1P1P/8/PBPPP1P1/R2QKBR1 w Qkq - 0 16

d4f5

FEN state: r1b1k1nr/p2p2p1/3b4/q1p1pp1p/1n1N1P1P/8/PBPPP1P1/R2QKBR1 w Qkq - 0 16 ; Best moved4f5

The current state of the chess board is: Black rook at a8, black bishop at c8, black king at e8, black knight at g8 and black rook at h8. Black pawn at a7, black pawn at d7 and black pawn at g7. Black bishop at d6. Black queen at a5, black pawn at c5, black pawn at e5, black pawn at f5 and black pawn at h5. Black knight at b4, white knight at d4, white pawn at f4 and white pawn at h4. White pawn at a2, white bishop at b2, white pawn at c2, white pawn at d2, white pawn at e2 and white pawn at g2. White rook at a1, white queen at d1, white king at e1, white bishop at f1 and white rook at g1. White queenside, black kingside and black queenside castles are available. Half move number is 0. Full move number is 16. White to move.

the output is d4f5

Input: The current state of the chess board is: Black rook at a8, black bishop at c8, black king at e8, black knight at g8 and black rook at h8. Black pawn at a7, black pawn at d7 and black pawn at g7. Black bishop at d6. Black queen at a5, black pawn at c5, black pawn at e5, black pawn at f5 and black pawn at h5. Black knight at b4, white knight at d4, white pawn at f4 and white pawn at h4. White pawn at a2, white bishop at b2, white pawn at c2, white pawn at d2, white pawn at e2 and white pawn at g2. White rook at a1, white queen at d1, white king at e1, white bishop at f1 and white rook at g1. White queenside, black kingside and black queenside castles are available. Half move number is 0. Full move number is 16. White to move. ; Output: Move from d4 to f5.

2r3Q1/1Rpkb3/1p3p2/1N2p1pr/8/1P3p2/2PPKPPP/2B2B1R w - - 0 24

e2f3

FEN state: 2r3Q1/1Rpkb3/1p3p2/1N2p1pr/8/1P3p2/2PPKPPP/2B2B1R w - - 0 24 ; Best movee2f3

The current state of the chess board is: Black rook at c8 and white queen at g8. White rook at b7, black pawn at c7, black king at d7 and black bishop at e7. Black pawn at b6 and black pawn at f6. White knight at b5, black pawn at e5, black pawn at g5 and black rook at h5. White pawn at b3 and black pawn at f3. White pawn at c2, white pawn at d2, white king at e2, white pawn at f2, white pawn at g2 and white pawn at h2. White bishop at c1, white bishop at f1 and white rook at h1. Both players have exhausted their castles. Half move number is 0. Full move number is 24. White to move.

the output is e2f3

Input: The current state of the chess board is: Black rook at c8 and white queen at g8. White rook at b7, black pawn at c7, black king at d7 and black bishop at e7. Black pawn at b6 and black pawn at f6. White knight at b5, black pawn at e5, black pawn at g5 and black rook at h5. White pawn at b3 and black pawn at f3. White pawn at c2, white pawn at d2, white king at e2, white pawn at f2, white pawn at g2 and white pawn at h2. White bishop at c1, white bishop at f1 and white rook at h1. Both players have exhausted their castles. Half move number is 0. Full move number is 24. White to move. ; Output: Move from e2 to f3.

r3k2r/p1ppq3/b1n4p/1p2p1p1/B3p1N1/1PPnQP2/P2N2PP/R2R2K1 w k - 0 22

d2e4

FEN state: r3k2r/p1ppq3/b1n4p/1p2p1p1/B3p1N1/1PPnQP2/P2N2PP/R2R2K1 w k - 0 22 ; Best moved2e4

The current state of the chess board is: Black rook at a8, black king at e8 and black rook at h8. Black pawn at a7, black pawn at c7, black pawn at d7 and black queen at e7. Black bishop at a6, black knight at c6 and black pawn at h6. Black pawn at b5, black pawn at e5 and black pawn at g5. White bishop at a4, black pawn at e4 and white knight at g4. White pawn at b3, white pawn at c3, black knight at d3, white queen at e3 and white pawn at f3. White pawn at a2, white knight at d2, white pawn at g2 and white pawn at h2. White rook at a1, white rook at d1 and white king at g1. Black kingside is the only castle move available. Half move number is 0. Full move number is 22. White to move.

the output is d2e4

Input: The current state of the chess board is: Black rook at a8, black king at e8 and black rook at h8. Black pawn at a7, black pawn at c7, black pawn at d7 and black queen at e7. Black bishop at a6, black knight at c6 and black pawn at h6. Black pawn at b5, black pawn at e5 and black pawn at g5. White bishop at a4, black pawn at e4 and white knight at g4. White pawn at b3, white pawn at c3, black knight at d3, white queen at e3 and white pawn at f3. White pawn at a2, white knight at d2, white pawn at g2 and white pawn at h2. White rook at a1, white rook at d1 and white king at g1. Black kingside is the only castle move available. Half move number is 0. Full move number is 22. White to move. ; Output: Move from d2 to e4.

2bk1br1/r2n4/2qQ1p1p/p2pp1PP/1Np5/N1P1P1P1/RB1P4/4KBR1 w - - 0 26

b4c6

FEN state: 2bk1br1/r2n4/2qQ1p1p/p2pp1PP/1Np5/N1P1P1P1/RB1P4/4KBR1 w - - 0 26 ; Best moveb4c6

The current state of the chess board is: Black bishop at c8, black king at d8, black bishop at f8 and black rook at g8. Black rook at a7 and black knight at d7. Black queen at c6, white queen at d6, black pawn at f6 and black pawn at h6. Black pawn at a5, black pawn at d5, black pawn at e5, white pawn at g5 and white pawn at h5. White knight at b4 and black pawn at c4. White knight at a3, white pawn at c3, white pawn at e3 and white pawn at g3. White rook at a2, white bishop at b2 and white pawn at d2. White king at e1, white bishop at f1 and white rook at g1. Both players have exhausted their castles. Half move number is 0. Full move number is 26. White to move.

the output is b4c6

Input: The current state of the chess board is: Black bishop at c8, black king at d8, black bishop at f8 and black rook at g8. Black rook at a7 and black knight at d7. Black queen at c6, white queen at d6, black pawn at f6 and black pawn at h6. Black pawn at a5, black pawn at d5, black pawn at e5, white pawn at g5 and white pawn at h5. White knight at b4 and black pawn at c4. White knight at a3, white pawn at c3, white pawn at e3 and white pawn at g3. White rook at a2, white bishop at b2 and white pawn at d2. White king at e1, white bishop at f1 and white rook at g1. Both players have exhausted their castles. Half move number is 0. Full move number is 26. White to move. ; Output: Move from b4 to c6.

1r4nr/2p1q1kp/1pb1p3/pP1p4/2P2BP1/N2B1P2/P2K1n1P/4R1NR w - - 1 26

d3c2

FEN state: 1r4nr/2p1q1kp/1pb1p3/pP1p4/2P2BP1/N2B1P2/P2K1n1P/4R1NR w - - 1 26 ; Best moved3c2

The current state of the chess board is: Black rook at b8, black knight at g8 and black rook at h8. Black pawn at c7, black queen at e7, black king at g7 and black pawn at h7. Black pawn at b6, black bishop at c6 and black pawn at e6. Black pawn at a5, white pawn at b5 and black pawn at d5. White pawn at c4, white bishop at f4 and white pawn at g4. White knight at a3, white bishop at d3 and white pawn at f3. White pawn at a2, white king at d2, black knight at f2 and white pawn at h2. White rook at e1, white knight at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 1. Full move number is 26. White to move.

the output is d3c2

Input: The current state of the chess board is: Black rook at b8, black knight at g8 and black rook at h8. Black pawn at c7, black queen at e7, black king at g7 and black pawn at h7. Black pawn at b6, black bishop at c6 and black pawn at e6. Black pawn at a5, white pawn at b5 and black pawn at d5. White pawn at c4, white bishop at f4 and white pawn at g4. White knight at a3, white bishop at d3 and white pawn at f3. White pawn at a2, white king at d2, black knight at f2 and white pawn at h2. White rook at e1, white knight at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 1. Full move number is 26. White to move. ; Output: Move from d3 to c2.

rn1qk2r/pp3pp1/4bn2/P1b1p2Q/2P1P3/6PP/2PP1P2/RNB1K1NR w KQkq - 1 12

h5h8

FEN state: rn1qk2r/pp3pp1/4bn2/P1b1p2Q/2P1P3/6PP/2PP1P2/RNB1K1NR w KQkq - 1 12 ; Best moveh5h8

The current state of the chess board is: Black rook at a8, black knight at b8, black queen at d8, black king at e8 and black rook at h8. Black pawn at a7, black pawn at b7, black pawn at f7 and black pawn at g7. Black bishop at e6 and black knight at f6. White pawn at a5, black bishop at c5, black pawn at e5 and white queen at h5. White pawn at c4 and white pawn at e4. White pawn at g3 and white pawn at h3. White pawn at c2, white pawn at d2 and white pawn at f2. White rook at a1, white knight at b1, white bishop at c1, white king at e1, white knight at g1 and white rook at h1. White kingside, white queenside, black kingside and black queenside castles are available. Half move number is 1. Full move number is 12. White to move.

the output is h5h8

Input: The current state of the chess board is: Black rook at a8, black knight at b8, black queen at d8, black king at e8 and black rook at h8. Black pawn at a7, black pawn at b7, black pawn at f7 and black pawn at g7. Black bishop at e6 and black knight at f6. White pawn at a5, black bishop at c5, black pawn at e5 and white queen at h5. White pawn at c4 and white pawn at e4. White pawn at g3 and white pawn at h3. White pawn at c2, white pawn at d2 and white pawn at f2. White rook at a1, white knight at b1, white bishop at c1, white king at e1, white knight at g1 and white rook at h1. White kingside, white queenside, black kingside and black queenside castles are available. Half move number is 1. Full move number is 12. White to move. ; Output: Move from h5 to h8.

r1b4b/qpk2nBr/7p/p1Pp1pp1/P1P3P1/2NP3P/4KP1N/R4B1R w - - 0 24

c3b5

FEN state: r1b4b/qpk2nBr/7p/p1Pp1pp1/P1P3P1/2NP3P/4KP1N/R4B1R w - - 0 24 ; Best movec3b5

The current state of the chess board is: Black rook at a8, black bishop at c8 and black bishop at h8. Black queen at a7, black pawn at b7, black king at c7, black knight at f7, white bishop at g7 and black rook at h7. Black pawn at h6. Black pawn at a5, white pawn at c5, black pawn at d5, black pawn at f5 and black pawn at g5. White pawn at a4, white pawn at c4 and white pawn at g4. White knight at c3, white pawn at d3 and white pawn at h3. White king at e2, white pawn at f2 and white knight at h2. White rook at a1, white bishop at f1 and white rook at h1. Both players have exhausted their castles. Half move number is 0. Full move number is 24. White to move.

the output is c3b5

Input: The current state of the chess board is: Black rook at a8, black bishop at c8 and black bishop at h8. Black queen at a7, black pawn at b7, black king at c7, black knight at f7, white bishop at g7 and black rook at h7. Black pawn at h6. Black pawn at a5, white pawn at c5, black pawn at d5, black pawn at f5 and black pawn at g5. White pawn at a4, white pawn at c4 and white pawn at g4. White knight at c3, white pawn at d3 and white pawn at h3. White king at e2, white pawn at f2 and white knight at h2. White rook at a1, white bishop at f1 and white rook at h1. Both players have exhausted their castles. Half move number is 0. Full move number is 24. White to move. ; Output: Move from c3 to b5.

r1b1kb1r/2pqpp1n/1p6/pPPp2pp/P4N1n/5P2/1BQPP1PP/RN2KB1R w KQkq - 2 15

b2h8

FEN state: r1b1kb1r/2pqpp1n/1p6/pPPp2pp/P4N1n/5P2/1BQPP1PP/RN2KB1R w KQkq - 2 15 ; Best moveb2h8

The current state of the chess board is: Black rook at a8, black bishop at c8, black king at e8, black bishop at f8 and black rook at h8. Black pawn at c7, black queen at d7, black pawn at e7, black pawn at f7 and black knight at h7. Black pawn at b6. Black pawn at a5, white pawn at b5, white pawn at c5, black pawn at d5, black pawn at g5 and black pawn at h5. White pawn at a4, white knight at f4 and black knight at h4. White pawn at f3. White bishop at b2, white queen at c2, white pawn at d2, white pawn at e2, white pawn at g2 and white pawn at h2. White rook at a1, white knight at b1, white king at e1, white bishop at f1 and white rook at h1. White kingside, white queenside, black kingside and black queenside castles are available. Half move number is 2. Full move number is 15. White to move.

the output is b2h8

Input: The current state of the chess board is: Black rook at a8, black bishop at c8, black king at e8, black bishop at f8 and black rook at h8. Black pawn at c7, black queen at d7, black pawn at e7, black pawn at f7 and black knight at h7. Black pawn at b6. Black pawn at a5, white pawn at b5, white pawn at c5, black pawn at d5, black pawn at g5 and black pawn at h5. White pawn at a4, white knight at f4 and black knight at h4. White pawn at f3. White bishop at b2, white queen at c2, white pawn at d2, white pawn at e2, white pawn at g2 and white pawn at h2. White rook at a1, white knight at b1, white king at e1, white bishop at f1 and white rook at h1. White kingside, white queenside, black kingside and black queenside castles are available. Half move number is 2. Full move number is 15. White to move. ; Output: Move from b2 to h8.

rn1qkbnr/p1p2pp1/bp1p4/4p3/1P2P3/1QPP2p1/P3KP1P/RNB2BNR w kq - 0 8

f2g3

FEN state: rn1qkbnr/p1p2pp1/bp1p4/4p3/1P2P3/1QPP2p1/P3KP1P/RNB2BNR w kq - 0 8 ; Best movef2g3

The current state of the chess board is: Black rook at a8, black knight at b8, black queen at d8, black king at e8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at a7, black pawn at c7, black pawn at f7 and black pawn at g7. Black bishop at a6, black pawn at b6 and black pawn at d6. Black pawn at e5. White pawn at b4 and white pawn at e4. White queen at b3, white pawn at c3, white pawn at d3 and black pawn at g3. White pawn at a2, white king at e2, white pawn at f2 and white pawn at h2. White rook at a1, white knight at b1, white bishop at c1, white bishop at f1, white knight at g1 and white rook at h1. Black kingside and black queenside castles are available. Half move number is 0. Full move number is 8. White to move.

the output is f2g3

Input: The current state of the chess board is: Black rook at a8, black knight at b8, black queen at d8, black king at e8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at a7, black pawn at c7, black pawn at f7 and black pawn at g7. Black bishop at a6, black pawn at b6 and black pawn at d6. Black pawn at e5. White pawn at b4 and white pawn at e4. White queen at b3, white pawn at c3, white pawn at d3 and black pawn at g3. White pawn at a2, white king at e2, white pawn at f2 and white pawn at h2. White rook at a1, white knight at b1, white bishop at c1, white bishop at f1, white knight at g1 and white rook at h1. Black kingside and black queenside castles are available. Half move number is 0. Full move number is 8. White to move. ; Output: Move from f2 to g3.

r6r/1ppbk1pp/p1n1pn2/P1bp1pP1/7P/2PP1P2/1P3QBR/RNB1K1N1 b Q - 4 16

c5f2

FEN state: r6r/1ppbk1pp/p1n1pn2/P1bp1pP1/7P/2PP1P2/1P3QBR/RNB1K1N1 b Q - 4 16 ; Best movec5f2

The current state of the chess board is: Black rook at a8 and black rook at h8. Black pawn at b7, black pawn at c7, black bishop at d7, black king at e7, black pawn at g7 and black pawn at h7. Black pawn at a6, black knight at c6, black pawn at e6 and black knight at f6. White pawn at a5, black bishop at c5, black pawn at d5, black pawn at f5 and white pawn at g5. White pawn at h4. White pawn at c3, white pawn at d3 and white pawn at f3. White pawn at b2, white queen at f2, white bishop at g2 and white rook at h2. White rook at a1, white knight at b1, white bishop at c1, white king at e1 and white knight at g1. White queenside is the only castle move available. Half move number is 4. Full move number is 16. Black to move.

the output is c5f2

Input: The current state of the chess board is: Black rook at a8 and black rook at h8. Black pawn at b7, black pawn at c7, black bishop at d7, black king at e7, black pawn at g7 and black pawn at h7. Black pawn at a6, black knight at c6, black pawn at e6 and black knight at f6. White pawn at a5, black bishop at c5, black pawn at d5, black pawn at f5 and white pawn at g5. White pawn at h4. White pawn at c3, white pawn at d3 and white pawn at f3. White pawn at b2, white queen at f2, white bishop at g2 and white rook at h2. White rook at a1, white knight at b1, white bishop at c1, white king at e1 and white knight at g1. White queenside is the only castle move available. Half move number is 4. Full move number is 16. Black to move. ; Output: Move from c5 to f2.

rnbq1b1r/pppp1p1p/4pk2/1P4p1/P2n4/5NPP/2PPPP2/RNBQKB1R w KQ - 1 8

f3d4

FEN state: rnbq1b1r/pppp1p1p/4pk2/1P4p1/P2n4/5NPP/2PPPP2/RNBQKB1R w KQ - 1 8 ; Best movef3d4

The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black queen at d8, black bishop at f8 and black rook at h8. Black pawn at a7, black pawn at b7, black pawn at c7, black pawn at d7, black pawn at f7 and black pawn at h7. Black pawn at e6 and black king at f6. White pawn at b5 and black pawn at g5. White pawn at a4 and black knight at d4. White knight at f3, white pawn at g3 and white pawn at h3. White pawn at c2, white pawn at d2, white pawn at e2 and white pawn at f2. White rook at a1, white knight at b1, white bishop at c1, white queen at d1, white king at e1, white bishop at f1 and white rook at h1. White kingside and white queenside castles are available. Half move number is 1. Full move number is 8. White to move.

the output is f3d4

Input: The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black queen at d8, black bishop at f8 and black rook at h8. Black pawn at a7, black pawn at b7, black pawn at c7, black pawn at d7, black pawn at f7 and black pawn at h7. Black pawn at e6 and black king at f6. White pawn at b5 and black pawn at g5. White pawn at a4 and black knight at d4. White knight at f3, white pawn at g3 and white pawn at h3. White pawn at c2, white pawn at d2, white pawn at e2 and white pawn at f2. White rook at a1, white knight at b1, white bishop at c1, white queen at d1, white king at e1, white bishop at f1 and white rook at h1. White kingside and white queenside castles are available. Half move number is 1. Full move number is 8. White to move. ; Output: Move from f3 to d4.

r2r4/4nkb1/1p1p1pp1/p1P1PbPp/P1P1PB2/5P1R/n2Q2B1/RN1K2N1 b - - 0 25

d6e5

FEN state: r2r4/4nkb1/1p1p1pp1/p1P1PbPp/P1P1PB2/5P1R/n2Q2B1/RN1K2N1 b - - 0 25 ; Best moved6e5

The current state of the chess board is: Black rook at a8 and black rook at d8. Black knight at e7, black king at f7 and black bishop at g7. Black pawn at b6, black pawn at d6, black pawn at f6 and black pawn at g6. Black pawn at a5, white pawn at c5, white pawn at e5, black bishop at f5, white pawn at g5 and black pawn at h5. White pawn at a4, white pawn at c4, white pawn at e4 and white bishop at f4. White pawn at f3 and white rook at h3. Black knight at a2, white queen at d2 and white bishop at g2. White rook at a1, white knight at b1, white king at d1 and white knight at g1. Both players have exhausted their castles. Half move number is 0. Full move number is 25. Black to move.

the output is d6e5

Input: The current state of the chess board is: Black rook at a8 and black rook at d8. Black knight at e7, black king at f7 and black bishop at g7. Black pawn at b6, black pawn at d6, black pawn at f6 and black pawn at g6. Black pawn at a5, white pawn at c5, white pawn at e5, black bishop at f5, white pawn at g5 and black pawn at h5. White pawn at a4, white pawn at c4, white pawn at e4 and white bishop at f4. White pawn at f3 and white rook at h3. Black knight at a2, white queen at d2 and white bishop at g2. White rook at a1, white knight at b1, white king at d1 and white knight at g1. Both players have exhausted their castles. Half move number is 0. Full move number is 25. Black to move. ; Output: Move from d6 to e5.

rnb1kb1r/1p4pp/p1p4n/3pppN1/qP2P1P1/P7/2PPQP1P/RNBK1B1R w kq - 0 12

b1c3

FEN state: rnb1kb1r/1p4pp/p1p4n/3pppN1/qP2P1P1/P7/2PPQP1P/RNBK1B1R w kq - 0 12 ; Best moveb1c3

The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black king at e8, black bishop at f8 and black rook at h8. Black pawn at b7, black pawn at g7 and black pawn at h7. Black pawn at a6, black pawn at c6 and black knight at h6. Black pawn at d5, black pawn at e5, black pawn at f5 and white knight at g5. Black queen at a4, white pawn at b4, white pawn at e4 and white pawn at g4. White pawn at a3. White pawn at c2, white pawn at d2, white queen at e2, white pawn at f2 and white pawn at h2. White rook at a1, white knight at b1, white bishop at c1, white king at d1, white bishop at f1 and white rook at h1. Black kingside and black queenside castles are available. Half move number is 0. Full move number is 12. White to move.

the output is b1c3

Input: The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black king at e8, black bishop at f8 and black rook at h8. Black pawn at b7, black pawn at g7 and black pawn at h7. Black pawn at a6, black pawn at c6 and black knight at h6. Black pawn at d5, black pawn at e5, black pawn at f5 and white knight at g5. Black queen at a4, white pawn at b4, white pawn at e4 and white pawn at g4. White pawn at a3. White pawn at c2, white pawn at d2, white queen at e2, white pawn at f2 and white pawn at h2. White rook at a1, white knight at b1, white bishop at c1, white king at d1, white bishop at f1 and white rook at h1. Black kingside and black queenside castles are available. Half move number is 0. Full move number is 12. White to move. ; Output: Move from b1 to c3.

r2qkbnr/4pp2/2pp2B1/NpP1P2p/3P1P1P/Pn2Bb1N/RP4P1/5K1R b k - 0 21

f7g6

FEN state: r2qkbnr/4pp2/2pp2B1/NpP1P2p/3P1P1P/Pn2Bb1N/RP4P1/5K1R b k - 0 21 ; Best movef7g6

The current state of the chess board is: Black rook at a8, black queen at d8, black king at e8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at e7 and black pawn at f7. Black pawn at c6, black pawn at d6 and white bishop at g6. White knight at a5, black pawn at b5, white pawn at c5, white pawn at e5 and black pawn at h5. White pawn at d4, white pawn at f4 and white pawn at h4. White pawn at a3, black knight at b3, white bishop at e3, black bishop at f3 and white knight at h3. White rook at a2, white pawn at b2 and white pawn at g2. White king at f1 and white rook at h1. Black kingside is the only castle move available. Half move number is 0. Full move number is 21. Black to move.

the output is f7g6

Input: The current state of the chess board is: Black rook at a8, black queen at d8, black king at e8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at e7 and black pawn at f7. Black pawn at c6, black pawn at d6 and white bishop at g6. White knight at a5, black pawn at b5, white pawn at c5, white pawn at e5 and black pawn at h5. White pawn at d4, white pawn at f4 and white pawn at h4. White pawn at a3, black knight at b3, white bishop at e3, black bishop at f3 and white knight at h3. White rook at a2, white pawn at b2 and white pawn at g2. White king at f1 and white rook at h1. Black kingside is the only castle move available. Half move number is 0. Full move number is 21. Black to move. ; Output: Move from f7 to g6.

r4bnr/p1pbk1p1/N2p4/Pp1q1p1p/1P2p2P/2PP1P1N/4PKP1/R1BQ1B1R w - - 2 17

a6c7

FEN state: r4bnr/p1pbk1p1/N2p4/Pp1q1p1p/1P2p2P/2PP1P1N/4PKP1/R1BQ1B1R w - - 2 17 ; Best movea6c7

The current state of the chess board is: Black rook at a8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at a7, black pawn at c7, black bishop at d7, black king at e7 and black pawn at g7. White knight at a6 and black pawn at d6. White pawn at a5, black pawn at b5, black queen at d5, black pawn at f5 and black pawn at h5. White pawn at b4, black pawn at e4 and white pawn at h4. White pawn at c3, white pawn at d3, white pawn at f3 and white knight at h3. White pawn at e2, white king at f2 and white pawn at g2. White rook at a1, white bishop at c1, white queen at d1, white bishop at f1 and white rook at h1. Both players have exhausted their castles. Half move number is 2. Full move number is 17. White to move.

the output is a6c7

Input: The current state of the chess board is: Black rook at a8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at a7, black pawn at c7, black bishop at d7, black king at e7 and black pawn at g7. White knight at a6 and black pawn at d6. White pawn at a5, black pawn at b5, black queen at d5, black pawn at f5 and black pawn at h5. White pawn at b4, black pawn at e4 and white pawn at h4. White pawn at c3, white pawn at d3, white pawn at f3 and white knight at h3. White pawn at e2, white king at f2 and white pawn at g2. White rook at a1, white bishop at c1, white queen at d1, white bishop at f1 and white rook at h1. Both players have exhausted their castles. Half move number is 2. Full move number is 17. White to move. ; Output: Move from a6 to c7.

rnbqkbnr/3pppp1/1p5p/2p3P1/p7/PP3P2/2PPPK1P/RNBQ1BNR w kq - 0 8

f3f4

FEN state: rnbqkbnr/3pppp1/1p5p/2p3P1/p7/PP3P2/2PPPK1P/RNBQ1BNR w kq - 0 8 ; Best movef3f4

The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black queen at d8, black king at e8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at d7, black pawn at e7, black pawn at f7 and black pawn at g7. Black pawn at b6 and black pawn at h6. Black pawn at c5 and white pawn at g5. Black pawn at a4. White pawn at a3, white pawn at b3 and white pawn at f3. White pawn at c2, white pawn at d2, white pawn at e2, white king at f2 and white pawn at h2. White rook at a1, white knight at b1, white bishop at c1, white queen at d1, white bishop at f1, white knight at g1 and white rook at h1. Black kingside and black queenside castles are available. Half move number is 0. Full move number is 8. White to move.

the output is f3f4

Input: The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black queen at d8, black king at e8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at d7, black pawn at e7, black pawn at f7 and black pawn at g7. Black pawn at b6 and black pawn at h6. Black pawn at c5 and white pawn at g5. Black pawn at a4. White pawn at a3, white pawn at b3 and white pawn at f3. White pawn at c2, white pawn at d2, white pawn at e2, white king at f2 and white pawn at h2. White rook at a1, white knight at b1, white bishop at c1, white queen at d1, white bishop at f1, white knight at g1 and white rook at h1. Black kingside and black queenside castles are available. Half move number is 0. Full move number is 8. White to move. ; Output: Move from f3 to f4.

rn2k2r/p3b1Bp/3ppp1n/2Pb4/1p4q1/1P3P1B/P2NP2R/RQK3N1 w kq - 0 25

f3g4

FEN state: rn2k2r/p3b1Bp/3ppp1n/2Pb4/1p4q1/1P3P1B/P2NP2R/RQK3N1 w kq - 0 25 ; Best movef3g4

The current state of the chess board is: Black rook at a8, black knight at b8, black king at e8 and black rook at h8. Black pawn at a7, black bishop at e7, white bishop at g7 and black pawn at h7. Black pawn at d6, black pawn at e6, black pawn at f6 and black knight at h6. White pawn at c5 and black bishop at d5. Black pawn at b4 and black queen at g4. White pawn at b3, white pawn at f3 and white bishop at h3. White pawn at a2, white knight at d2, white pawn at e2 and white rook at h2. White rook at a1, white queen at b1, white king at c1 and white knight at g1. Black kingside and black queenside castles are available. Half move number is 0. Full move number is 25. White to move.

the output is f3g4

Input: The current state of the chess board is: Black rook at a8, black knight at b8, black king at e8 and black rook at h8. Black pawn at a7, black bishop at e7, white bishop at g7 and black pawn at h7. Black pawn at d6, black pawn at e6, black pawn at f6 and black knight at h6. White pawn at c5 and black bishop at d5. Black pawn at b4 and black queen at g4. White pawn at b3, white pawn at f3 and white bishop at h3. White pawn at a2, white knight at d2, white pawn at e2 and white rook at h2. White rook at a1, white queen at b1, white king at c1 and white knight at g1. Black kingside and black queenside castles are available. Half move number is 0. Full move number is 25. White to move. ; Output: Move from f3 to g4.

1r2kbnr/2p1p1pp/pp1qp3/8/Pn1p3P/2NPP3/1PPBK1P1/RQ3BNR w k - 1 13

c3e4

FEN state: 1r2kbnr/2p1p1pp/pp1qp3/8/Pn1p3P/2NPP3/1PPBK1P1/RQ3BNR w k - 1 13 ; Best movec3e4

The current state of the chess board is: Black rook at b8, black king at e8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at c7, black pawn at e7, black pawn at g7 and black pawn at h7. Black pawn at a6, black pawn at b6, black queen at d6 and black pawn at e6. White pawn at a4, black knight at b4, black pawn at d4 and white pawn at h4. White knight at c3, white pawn at d3 and white pawn at e3. White pawn at b2, white pawn at c2, white bishop at d2, white king at e2 and white pawn at g2. White rook at a1, white queen at b1, white bishop at f1, white knight at g1 and white rook at h1. Black kingside is the only castle move available. Half move number is 1. Full move number is 13. White to move.

the output is c3e4

Input: The current state of the chess board is: Black rook at b8, black king at e8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at c7, black pawn at e7, black pawn at g7 and black pawn at h7. Black pawn at a6, black pawn at b6, black queen at d6 and black pawn at e6. White pawn at a4, black knight at b4, black pawn at d4 and white pawn at h4. White knight at c3, white pawn at d3 and white pawn at e3. White pawn at b2, white pawn at c2, white bishop at d2, white king at e2 and white pawn at g2. White rook at a1, white queen at b1, white bishop at f1, white knight at g1 and white rook at h1. Black kingside is the only castle move available. Half move number is 1. Full move number is 13. White to move. ; Output: Move from c3 to e4.

r1bk1br1/p1pq2p1/n2pp2p/3n1p2/1p1P1PPP/1PPQ4/PB1NP3/R3KBNR b KQ - 2 13

c8b7

FEN state: r1bk1br1/p1pq2p1/n2pp2p/3n1p2/1p1P1PPP/1PPQ4/PB1NP3/R3KBNR b KQ - 2 13 ; Best movec8b7

The current state of the chess board is: Black rook at a8, black bishop at c8, black king at d8, black bishop at f8 and black rook at g8. Black pawn at a7, black pawn at c7, black queen at d7 and black pawn at g7. Black knight at a6, black pawn at d6, black pawn at e6 and black pawn at h6. Black knight at d5 and black pawn at f5. Black pawn at b4, white pawn at d4, white pawn at f4, white pawn at g4 and white pawn at h4. White pawn at b3, white pawn at c3 and white queen at d3. White pawn at a2, white bishop at b2, white knight at d2 and white pawn at e2. White rook at a1, white king at e1, white bishop at f1, white knight at g1 and white rook at h1. White kingside and white queenside castles are available. Half move number is 2. Full move number is 13. Black to move.

the output is c8b7

Input: The current state of the chess board is: Black rook at a8, black bishop at c8, black king at d8, black bishop at f8 and black rook at g8. Black pawn at a7, black pawn at c7, black queen at d7 and black pawn at g7. Black knight at a6, black pawn at d6, black pawn at e6 and black pawn at h6. Black knight at d5 and black pawn at f5. Black pawn at b4, white pawn at d4, white pawn at f4, white pawn at g4 and white pawn at h4. White pawn at b3, white pawn at c3 and white queen at d3. White pawn at a2, white bishop at b2, white knight at d2 and white pawn at e2. White rook at a1, white king at e1, white bishop at f1, white knight at g1 and white rook at h1. White kingside and white queenside castles are available. Half move number is 2. Full move number is 13. Black to move. ; Output: Move from c8 to b7.

2b2knr/2p2pb1/2nQ1P2/rp1P3p/2P4p/P2p4/1P1P2P1/RNB1K1NR b KQ - 0 20

c7d6

FEN state: 2b2knr/2p2pb1/2nQ1P2/rp1P3p/2P4p/P2p4/1P1P2P1/RNB1K1NR b KQ - 0 20 ; Best movec7d6

The current state of the chess board is: Black bishop at c8, black king at f8, black knight at g8 and black rook at h8. Black pawn at c7, black pawn at f7 and black bishop at g7. Black knight at c6, white queen at d6 and white pawn at f6. Black rook at a5, black pawn at b5, white pawn at d5 and black pawn at h5. White pawn at c4 and black pawn at h4. White pawn at a3 and black pawn at d3. White pawn at b2, white pawn at d2 and white pawn at g2. White rook at a1, white knight at b1, white bishop at c1, white king at e1, white knight at g1 and white rook at h1. White kingside and white queenside castles are available. Half move number is 0. Full move number is 20. Black to move.

the output is c7d6

Input: The current state of the chess board is: Black bishop at c8, black king at f8, black knight at g8 and black rook at h8. Black pawn at c7, black pawn at f7 and black bishop at g7. Black knight at c6, white queen at d6 and white pawn at f6. Black rook at a5, black pawn at b5, white pawn at d5 and black pawn at h5. White pawn at c4 and black pawn at h4. White pawn at a3 and black pawn at d3. White pawn at b2, white pawn at d2 and white pawn at g2. White rook at a1, white knight at b1, white bishop at c1, white king at e1, white knight at g1 and white rook at h1. White kingside and white queenside castles are available. Half move number is 0. Full move number is 20. Black to move. ; Output: Move from c7 to d6.

rnb1k2r/p2ppp1p/1q3n1b/2p3Np/1Np1P3/P2B2PP/1P1P1P2/R1BK3R b kq - 1 13

c4d3

FEN state: rnb1k2r/p2ppp1p/1q3n1b/2p3Np/1Np1P3/P2B2PP/1P1P1P2/R1BK3R b kq - 1 13 ; Best movec4d3

The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black king at e8 and black rook at h8. Black pawn at a7, black pawn at d7, black pawn at e7, black pawn at f7 and black pawn at h7. Black queen at b6, black knight at f6 and black bishop at h6. Black pawn at c5, white knight at g5 and black pawn at h5. White knight at b4, black pawn at c4 and white pawn at e4. White pawn at a3, white bishop at d3, white pawn at g3 and white pawn at h3. White pawn at b2, white pawn at d2 and white pawn at f2. White rook at a1, white bishop at c1, white king at d1 and white rook at h1. Black kingside and black queenside castles are available. Half move number is 1. Full move number is 13. Black to move.

the output is c4d3

Input: The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black king at e8 and black rook at h8. Black pawn at a7, black pawn at d7, black pawn at e7, black pawn at f7 and black pawn at h7. Black queen at b6, black knight at f6 and black bishop at h6. Black pawn at c5, white knight at g5 and black pawn at h5. White knight at b4, black pawn at c4 and white pawn at e4. White pawn at a3, white bishop at d3, white pawn at g3 and white pawn at h3. White pawn at b2, white pawn at d2 and white pawn at f2. White rook at a1, white bishop at c1, white king at d1 and white rook at h1. Black kingside and black queenside castles are available. Half move number is 1. Full move number is 13. Black to move. ; Output: Move from c4 to d3.

rn2kbnr/p2b3p/1p1pppp1/1Pp3q1/2P2P2/P2BP3/1B1P2PP/RN1QK1NR b KQkq - 1 10

g5g2

FEN state: rn2kbnr/p2b3p/1p1pppp1/1Pp3q1/2P2P2/P2BP3/1B1P2PP/RN1QK1NR b KQkq - 1 10 ; Best moveg5g2

The current state of the chess board is: Black rook at a8, black knight at b8, black king at e8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at a7, black bishop at d7 and black pawn at h7. Black pawn at b6, black pawn at d6, black pawn at e6, black pawn at f6 and black pawn at g6. White pawn at b5, black pawn at c5 and black queen at g5. White pawn at c4 and white pawn at f4. White pawn at a3, white bishop at d3 and white pawn at e3. White bishop at b2, white pawn at d2, white pawn at g2 and white pawn at h2. White rook at a1, white knight at b1, white queen at d1, white king at e1, white knight at g1 and white rook at h1. White kingside, white queenside, black kingside and black queenside castles are available. Half move number is 1. Full move number is 10. Black to move.

the output is g5g2

Input: The current state of the chess board is: Black rook at a8, black knight at b8, black king at e8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at a7, black bishop at d7 and black pawn at h7. Black pawn at b6, black pawn at d6, black pawn at e6, black pawn at f6 and black pawn at g6. White pawn at b5, black pawn at c5 and black queen at g5. White pawn at c4 and white pawn at f4. White pawn at a3, white bishop at d3 and white pawn at e3. White bishop at b2, white pawn at d2, white pawn at g2 and white pawn at h2. White rook at a1, white knight at b1, white queen at d1, white king at e1, white knight at g1 and white rook at h1. White kingside, white queenside, black kingside and black queenside castles are available. Half move number is 1. Full move number is 10. Black to move. ; Output: Move from g5 to g2.

r1b2rk1/p2p3p/2N3pb/1N2p3/1nP4P/3n4/PB1QPPPR/R2K1B2 b - - 0 18

d3f2

FEN state: r1b2rk1/p2p3p/2N3pb/1N2p3/1nP4P/3n4/PB1QPPPR/R2K1B2 b - - 0 18 ; Best moved3f2

The current state of the chess board is: Black rook at a8, black bishop at c8, black rook at f8 and black king at g8. Black pawn at a7, black pawn at d7 and black pawn at h7. White knight at c6, black pawn at g6 and black bishop at h6. White knight at b5 and black pawn at e5. Black knight at b4, white pawn at c4 and white pawn at h4. Black knight at d3. White pawn at a2, white bishop at b2, white queen at d2, white pawn at e2, white pawn at f2, white pawn at g2 and white rook at h2. White rook at a1, white king at d1 and white bishop at f1. Both players have exhausted their castles. Half move number is 0. Full move number is 18. Black to move.

the output is d3f2

Input: The current state of the chess board is: Black rook at a8, black bishop at c8, black rook at f8 and black king at g8. Black pawn at a7, black pawn at d7 and black pawn at h7. White knight at c6, black pawn at g6 and black bishop at h6. White knight at b5 and black pawn at e5. Black knight at b4, white pawn at c4 and white pawn at h4. Black knight at d3. White pawn at a2, white bishop at b2, white queen at d2, white pawn at e2, white pawn at f2, white pawn at g2 and white rook at h2. White rook at a1, white king at d1 and white bishop at f1. Both players have exhausted their castles. Half move number is 0. Full move number is 18. Black to move. ; Output: Move from d3 to f2.

1rbq1bnr/1pp2k2/n2pp2p/p4ppP/2QP2P1/1PP1P3/P2B1P1R/RN2KBN1 w Q - 2 17

g4f5

FEN state: 1rbq1bnr/1pp2k2/n2pp2p/p4ppP/2QP2P1/1PP1P3/P2B1P1R/RN2KBN1 w Q - 2 17 ; Best moveg4f5

The current state of the chess board is: Black rook at b8, black bishop at c8, black queen at d8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at b7, black pawn at c7 and black king at f7. Black knight at a6, black pawn at d6, black pawn at e6 and black pawn at h6. Black pawn at a5, black pawn at f5, black pawn at g5 and white pawn at h5. White queen at c4, white pawn at d4 and white pawn at g4. White pawn at b3, white pawn at c3 and white pawn at e3. White pawn at a2, white bishop at d2, white pawn at f2 and white rook at h2. White rook at a1, white knight at b1, white king at e1, white bishop at f1 and white knight at g1. White queenside is the only castle move available. Half move number is 2. Full move number is 17. White to move.

the output is g4f5

Input: The current state of the chess board is: Black rook at b8, black bishop at c8, black queen at d8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at b7, black pawn at c7 and black king at f7. Black knight at a6, black pawn at d6, black pawn at e6 and black pawn at h6. Black pawn at a5, black pawn at f5, black pawn at g5 and white pawn at h5. White queen at c4, white pawn at d4 and white pawn at g4. White pawn at b3, white pawn at c3 and white pawn at e3. White pawn at a2, white bishop at d2, white pawn at f2 and white rook at h2. White rook at a1, white knight at b1, white king at e1, white bishop at f1 and white knight at g1. White queenside is the only castle move available. Half move number is 2. Full move number is 17. White to move. ; Output: Move from g4 to f5.

rn1q2nr/pp1kp3/3p1ppp/2p5/5P2/N2PQbPN/PPP1P1BP/R1B2R1K w - - 2 12

e3f3

FEN state: rn1q2nr/pp1kp3/3p1ppp/2p5/5P2/N2PQbPN/PPP1P1BP/R1B2R1K w - - 2 12 ; Best movee3f3

The current state of the chess board is: Black rook at a8, black knight at b8, black queen at d8, black knight at g8 and black rook at h8. Black pawn at a7, black pawn at b7, black king at d7 and black pawn at e7. Black pawn at d6, black pawn at f6, black pawn at g6 and black pawn at h6. Black pawn at c5. White pawn at f4. White knight at a3, white pawn at d3, white queen at e3, black bishop at f3, white pawn at g3 and white knight at h3. White pawn at a2, white pawn at b2, white pawn at c2, white pawn at e2, white bishop at g2 and white pawn at h2. White rook at a1, white bishop at c1, white rook at f1 and white king at h1. Both players have exhausted their castles. Half move number is 2. Full move number is 12. White to move.

the output is e3f3

Input: The current state of the chess board is: Black rook at a8, black knight at b8, black queen at d8, black knight at g8 and black rook at h8. Black pawn at a7, black pawn at b7, black king at d7 and black pawn at e7. Black pawn at d6, black pawn at f6, black pawn at g6 and black pawn at h6. Black pawn at c5. White pawn at f4. White knight at a3, white pawn at d3, white queen at e3, black bishop at f3, white pawn at g3 and white knight at h3. White pawn at a2, white pawn at b2, white pawn at c2, white pawn at e2, white bishop at g2 and white pawn at h2. White rook at a1, white bishop at c1, white rook at f1 and white king at h1. Both players have exhausted their castles. Half move number is 2. Full move number is 12. White to move. ; Output: Move from e3 to f3.

1nbq1bnr/1pppp3/r6p/p3NkpP/1PNP1p2/5P2/P1P1P1P1/1RBQKB1R b K - 0 11

f5f6

FEN state: 1nbq1bnr/1pppp3/r6p/p3NkpP/1PNP1p2/5P2/P1P1P1P1/1RBQKB1R b K - 0 11 ; Best movef5f6

The current state of the chess board is: Black knight at b8, black bishop at c8, black queen at d8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at b7, black pawn at c7, black pawn at d7 and black pawn at e7. Black rook at a6 and black pawn at h6. Black pawn at a5, white knight at e5, black king at f5, black pawn at g5 and white pawn at h5. White pawn at b4, white knight at c4, white pawn at d4 and black pawn at f4. White pawn at f3. White pawn at a2, white pawn at c2, white pawn at e2 and white pawn at g2. White rook at b1, white bishop at c1, white queen at d1, white king at e1, white bishop at f1 and white rook at h1. White kingside is the only castle move available. Half move number is 0. Full move number is 11. Black to move.

the output is f5f6

Input: The current state of the chess board is: Black knight at b8, black bishop at c8, black queen at d8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at b7, black pawn at c7, black pawn at d7 and black pawn at e7. Black rook at a6 and black pawn at h6. Black pawn at a5, white knight at e5, black king at f5, black pawn at g5 and white pawn at h5. White pawn at b4, white knight at c4, white pawn at d4 and black pawn at f4. White pawn at f3. White pawn at a2, white pawn at c2, white pawn at e2 and white pawn at g2. White rook at b1, white bishop at c1, white queen at d1, white king at e1, white bishop at f1 and white rook at h1. White kingside is the only castle move available. Half move number is 0. Full move number is 11. Black to move. ; Output: Move from f5 to f6.

r1bq2nr/p1p1p2N/n2pk2b/1p5Q/8/4P2P/PPPP1PPR/RNB1KB2 w Q - 3 12

f1b5

FEN state: r1bq2nr/p1p1p2N/n2pk2b/1p5Q/8/4P2P/PPPP1PPR/RNB1KB2 w Q - 3 12 ; Best movef1b5

The current state of the chess board is: Black rook at a8, black bishop at c8, black queen at d8, black knight at g8 and black rook at h8. Black pawn at a7, black pawn at c7, black pawn at e7 and white knight at h7. Black knight at a6, black pawn at d6, black king at e6 and black bishop at h6. Black pawn at b5 and white queen at h5. White pawn at e3 and white pawn at h3. White pawn at a2, white pawn at b2, white pawn at c2, white pawn at d2, white pawn at f2, white pawn at g2 and white rook at h2. White rook at a1, white knight at b1, white bishop at c1, white king at e1 and white bishop at f1. White queenside is the only castle move available. Half move number is 3. Full move number is 12. White to move.

the output is f1b5

Input: The current state of the chess board is: Black rook at a8, black bishop at c8, black queen at d8, black knight at g8 and black rook at h8. Black pawn at a7, black pawn at c7, black pawn at e7 and white knight at h7. Black knight at a6, black pawn at d6, black king at e6 and black bishop at h6. Black pawn at b5 and white queen at h5. White pawn at e3 and white pawn at h3. White pawn at a2, white pawn at b2, white pawn at c2, white pawn at d2, white pawn at f2, white pawn at g2 and white rook at h2. White rook at a1, white knight at b1, white bishop at c1, white king at e1 and white bishop at f1. White queenside is the only castle move available. Half move number is 3. Full move number is 12. White to move. ; Output: Move from f1 to b5.

rn2k2r/pbqp2p1/3b3p/1BP1pp2/1P2PPQP/2P3nR/PB4P1/RN1K2N1 w - - 0 21

g4g3

FEN state: rn2k2r/pbqp2p1/3b3p/1BP1pp2/1P2PPQP/2P3nR/PB4P1/RN1K2N1 w - - 0 21 ; Best moveg4g3

The current state of the chess board is: Black rook at a8, black knight at b8, black king at e8 and black rook at h8. Black pawn at a7, black bishop at b7, black queen at c7, black pawn at d7 and black pawn at g7. Black bishop at d6 and black pawn at h6. White bishop at b5, white pawn at c5, black pawn at e5 and black pawn at f5. White pawn at b4, white pawn at e4, white pawn at f4, white queen at g4 and white pawn at h4. White pawn at c3, black knight at g3 and white rook at h3. White pawn at a2, white bishop at b2 and white pawn at g2. White rook at a1, white knight at b1, white king at d1 and white knight at g1. Both players have exhausted their castles. Half move number is 0. Full move number is 21. White to move.

the output is g4g3

Input: The current state of the chess board is: Black rook at a8, black knight at b8, black king at e8 and black rook at h8. Black pawn at a7, black bishop at b7, black queen at c7, black pawn at d7 and black pawn at g7. Black bishop at d6 and black pawn at h6. White bishop at b5, white pawn at c5, black pawn at e5 and black pawn at f5. White pawn at b4, white pawn at e4, white pawn at f4, white queen at g4 and white pawn at h4. White pawn at c3, black knight at g3 and white rook at h3. White pawn at a2, white bishop at b2 and white pawn at g2. White rook at a1, white knight at b1, white king at d1 and white knight at g1. Both players have exhausted their castles. Half move number is 0. Full move number is 21. White to move. ; Output: Move from g4 to g3.

2r1qb1r/ppp1pppp/3k1n2/3p1b2/1PB3P1/N4P2/P1PP1KNP/R1BQ2R1 b - - 1 16

f5g6

FEN state: 2r1qb1r/ppp1pppp/3k1n2/3p1b2/1PB3P1/N4P2/P1PP1KNP/R1BQ2R1 b - - 1 16 ; Best movef5g6

The current state of the chess board is: Black rook at c8, black queen at e8, black bishop at f8 and black rook at h8. Black pawn at a7, black pawn at b7, black pawn at c7, black pawn at e7, black pawn at f7, black pawn at g7 and black pawn at h7. Black king at d6 and black knight at f6. Black pawn at d5 and black bishop at f5. White pawn at b4, white bishop at c4 and white pawn at g4. White knight at a3 and white pawn at f3. White pawn at a2, white pawn at c2, white pawn at d2, white king at f2, white knight at g2 and white pawn at h2. White rook at a1, white bishop at c1, white queen at d1 and white rook at g1. Both players have exhausted their castles. Half move number is 1. Full move number is 16. Black to move.

the output is f5g6

Input: The current state of the chess board is: Black rook at c8, black queen at e8, black bishop at f8 and black rook at h8. Black pawn at a7, black pawn at b7, black pawn at c7, black pawn at e7, black pawn at f7, black pawn at g7 and black pawn at h7. Black king at d6 and black knight at f6. Black pawn at d5 and black bishop at f5. White pawn at b4, white bishop at c4 and white pawn at g4. White knight at a3 and white pawn at f3. White pawn at a2, white pawn at c2, white pawn at d2, white king at f2, white knight at g2 and white pawn at h2. White rook at a1, white bishop at c1, white queen at d1 and white rook at g1. Both players have exhausted their castles. Half move number is 1. Full move number is 16. Black to move. ; Output: Move from f5 to g6.

rnb1k1rb/2npp3/1p5p/p1p2p2/BqPN2P1/3PK3/P2QPP1P/R1B1R3 b - - 1 23

h8d4

FEN state: rnb1k1rb/2npp3/1p5p/p1p2p2/BqPN2P1/3PK3/P2QPP1P/R1B1R3 b - - 1 23 ; Best moveh8d4

The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black king at e8, black rook at g8 and black bishop at h8. Black knight at c7, black pawn at d7 and black pawn at e7. Black pawn at b6 and black pawn at h6. Black pawn at a5, black pawn at c5 and black pawn at f5. White bishop at a4, black queen at b4, white pawn at c4, white knight at d4 and white pawn at g4. White pawn at d3 and white king at e3. White pawn at a2, white queen at d2, white pawn at e2, white pawn at f2 and white pawn at h2. White rook at a1, white bishop at c1 and white rook at e1. Both players have exhausted their castles. Half move number is 1. Full move number is 23. Black to move.

the output is h8d4

Input: The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black king at e8, black rook at g8 and black bishop at h8. Black knight at c7, black pawn at d7 and black pawn at e7. Black pawn at b6 and black pawn at h6. Black pawn at a5, black pawn at c5 and black pawn at f5. White bishop at a4, black queen at b4, white pawn at c4, white knight at d4 and white pawn at g4. White pawn at d3 and white king at e3. White pawn at a2, white queen at d2, white pawn at e2, white pawn at f2 and white pawn at h2. White rook at a1, white bishop at c1 and white rook at e1. Both players have exhausted their castles. Half move number is 1. Full move number is 23. Black to move. ; Output: Move from h8 to d4.

1rbqkbn1/ppppp1r1/2n2p1p/7p/1P2PP2/B5PP/P1PP3R/RN2KBN1 w Q - 2 10

f1e2

FEN state: 1rbqkbn1/ppppp1r1/2n2p1p/7p/1P2PP2/B5PP/P1PP3R/RN2KBN1 w Q - 2 10 ; Best movef1e2

The current state of the chess board is: Black rook at b8, black bishop at c8, black queen at d8, black king at e8, black bishop at f8 and black knight at g8. Black pawn at a7, black pawn at b7, black pawn at c7, black pawn at d7, black pawn at e7 and black rook at g7. Black knight at c6, black pawn at f6 and black pawn at h6. Black pawn at h5. White pawn at b4, white pawn at e4 and white pawn at f4. White bishop at a3, white pawn at g3 and white pawn at h3. White pawn at a2, white pawn at c2, white pawn at d2 and white rook at h2. White rook at a1, white knight at b1, white king at e1, white bishop at f1 and white knight at g1. White queenside is the only castle move available. Half move number is 2. Full move number is 10. White to move.

the output is f1e2

Input: The current state of the chess board is: Black rook at b8, black bishop at c8, black queen at d8, black king at e8, black bishop at f8 and black knight at g8. Black pawn at a7, black pawn at b7, black pawn at c7, black pawn at d7, black pawn at e7 and black rook at g7. Black knight at c6, black pawn at f6 and black pawn at h6. Black pawn at h5. White pawn at b4, white pawn at e4 and white pawn at f4. White bishop at a3, white pawn at g3 and white pawn at h3. White pawn at a2, white pawn at c2, white pawn at d2 and white rook at h2. White rook at a1, white knight at b1, white king at e1, white bishop at f1 and white knight at g1. White queenside is the only castle move available. Half move number is 2. Full move number is 10. White to move. ; Output: Move from f1 to e2.

r2q1b1r/pppkp2p/4b1pn/2Pp4/2P2p2/3QPPP1/PP2N2P/RNB1KB1R b KQ - 2 11

d7e8

FEN state: r2q1b1r/pppkp2p/4b1pn/2Pp4/2P2p2/3QPPP1/PP2N2P/RNB1KB1R b KQ - 2 11 ; Best moved7e8

The current state of the chess board is: Black rook at a8, black queen at d8, black bishop at f8 and black rook at h8. Black pawn at a7, black pawn at b7, black pawn at c7, black king at d7, black pawn at e7 and black pawn at h7. Black bishop at e6, black pawn at g6 and black knight at h6. White pawn at c5 and black pawn at d5. White pawn at c4 and black pawn at f4. White queen at d3, white pawn at e3, white pawn at f3 and white pawn at g3. White pawn at a2, white pawn at b2, white knight at e2 and white pawn at h2. White rook at a1, white knight at b1, white bishop at c1, white king at e1, white bishop at f1 and white rook at h1. White kingside and white queenside castles are available. Half move number is 2. Full move number is 11. Black to move.

the output is d7e8

Input: The current state of the chess board is: Black rook at a8, black queen at d8, black bishop at f8 and black rook at h8. Black pawn at a7, black pawn at b7, black pawn at c7, black king at d7, black pawn at e7 and black pawn at h7. Black bishop at e6, black pawn at g6 and black knight at h6. White pawn at c5 and black pawn at d5. White pawn at c4 and black pawn at f4. White queen at d3, white pawn at e3, white pawn at f3 and white pawn at g3. White pawn at a2, white pawn at b2, white knight at e2 and white pawn at h2. White rook at a1, white knight at b1, white bishop at c1, white king at e1, white bishop at f1 and white rook at h1. White kingside and white queenside castles are available. Half move number is 2. Full move number is 11. Black to move. ; Output: Move from d7 to e8.

2rqkb1r/1b1ppp2/Bp1Q4/p1p3pp/PP3nP1/4P3/R1PP3P/1NBK2NR w k - 0 19

a6b7

FEN state: 2rqkb1r/1b1ppp2/Bp1Q4/p1p3pp/PP3nP1/4P3/R1PP3P/1NBK2NR w k - 0 19 ; Best movea6b7

The current state of the chess board is: Black rook at c8, black queen at d8, black king at e8, black bishop at f8 and black rook at h8. Black bishop at b7, black pawn at d7, black pawn at e7 and black pawn at f7. White bishop at a6, black pawn at b6 and white queen at d6. Black pawn at a5, black pawn at c5, black pawn at g5 and black pawn at h5. White pawn at a4, white pawn at b4, black knight at f4 and white pawn at g4. White pawn at e3. White rook at a2, white pawn at c2, white pawn at d2 and white pawn at h2. White knight at b1, white bishop at c1, white king at d1, white knight at g1 and white rook at h1. Black kingside is the only castle move available. Half move number is 0. Full move number is 19. White to move.

the output is a6b7

Input: The current state of the chess board is: Black rook at c8, black queen at d8, black king at e8, black bishop at f8 and black rook at h8. Black bishop at b7, black pawn at d7, black pawn at e7 and black pawn at f7. White bishop at a6, black pawn at b6 and white queen at d6. Black pawn at a5, black pawn at c5, black pawn at g5 and black pawn at h5. White pawn at a4, white pawn at b4, black knight at f4 and white pawn at g4. White pawn at e3. White rook at a2, white pawn at c2, white pawn at d2 and white pawn at h2. White knight at b1, white bishop at c1, white king at d1, white knight at g1 and white rook at h1. Black kingside is the only castle move available. Half move number is 0. Full move number is 19. White to move. ; Output: Move from a6 to b7.

rn2k2r/p1q2p1p/2p1pn2/6p1/1pPpP2P/QR6/PP1P1P2/1RBK2N1 b kq - 1 17

b4a3

FEN state: rn2k2r/p1q2p1p/2p1pn2/6p1/1pPpP2P/QR6/PP1P1P2/1RBK2N1 b kq - 1 17 ; Best moveb4a3

The current state of the chess board is: Black rook at a8, black knight at b8, black king at e8 and black rook at h8. Black pawn at a7, black queen at c7, black pawn at f7 and black pawn at h7. Black pawn at c6, black pawn at e6 and black knight at f6. Black pawn at g5. Black pawn at b4, white pawn at c4, black pawn at d4, white pawn at e4 and white pawn at h4. White queen at a3 and white rook at b3. White pawn at a2, white pawn at b2, white pawn at d2 and white pawn at f2. White rook at b1, white bishop at c1, white king at d1 and white knight at g1. Black kingside and black queenside castles are available. Half move number is 1. Full move number is 17. Black to move.

the output is b4a3

Input: The current state of the chess board is: Black rook at a8, black knight at b8, black king at e8 and black rook at h8. Black pawn at a7, black queen at c7, black pawn at f7 and black pawn at h7. Black pawn at c6, black pawn at e6 and black knight at f6. Black pawn at g5. Black pawn at b4, white pawn at c4, black pawn at d4, white pawn at e4 and white pawn at h4. White queen at a3 and white rook at b3. White pawn at a2, white pawn at b2, white pawn at d2 and white pawn at f2. White rook at b1, white bishop at c1, white king at d1 and white knight at g1. Black kingside and black queenside castles are available. Half move number is 1. Full move number is 17. Black to move. ; Output: Move from b4 to a3.

r1b1kb1r/pp1ppppp/n1p2n2/7P/1P6/P4N2/2PPPKP1/RNBQ1B1R b kq - 0 7

e7e5

FEN state: r1b1kb1r/pp1ppppp/n1p2n2/7P/1P6/P4N2/2PPPKP1/RNBQ1B1R b kq - 0 7 ; Best movee7e5

The current state of the chess board is: Black rook at a8, black bishop at c8, black king at e8, black bishop at f8 and black rook at h8. Black pawn at a7, black pawn at b7, black pawn at d7, black pawn at e7, black pawn at f7, black pawn at g7 and black pawn at h7. Black knight at a6, black pawn at c6 and black knight at f6. White pawn at h5. White pawn at b4. White pawn at a3 and white knight at f3. White pawn at c2, white pawn at d2, white pawn at e2, white king at f2 and white pawn at g2. White rook at a1, white knight at b1, white bishop at c1, white queen at d1, white bishop at f1 and white rook at h1. Black kingside and black queenside castles are available. Half move number is 0. Full move number is 7. Black to move.

the output is e7e5

Input: The current state of the chess board is: Black rook at a8, black bishop at c8, black king at e8, black bishop at f8 and black rook at h8. Black pawn at a7, black pawn at b7, black pawn at d7, black pawn at e7, black pawn at f7, black pawn at g7 and black pawn at h7. Black knight at a6, black pawn at c6 and black knight at f6. White pawn at h5. White pawn at b4. White pawn at a3 and white knight at f3. White pawn at c2, white pawn at d2, white pawn at e2, white king at f2 and white pawn at g2. White rook at a1, white knight at b1, white bishop at c1, white queen at d1, white bishop at f1 and white rook at h1. Black kingside and black queenside castles are available. Half move number is 0. Full move number is 7. Black to move. ; Output: Move from e7 to e5.

2bq1r2/1pp1kp2/n5pn/r2p3p/pPPb1pP1/3P1K1P/PBN1P3/R2Q1BNR w - - 3 19

b2d4

FEN state: 2bq1r2/1pp1kp2/n5pn/r2p3p/pPPb1pP1/3P1K1P/PBN1P3/R2Q1BNR w - - 3 19 ; Best moveb2d4

The current state of the chess board is: Black bishop at c8, black queen at d8 and black rook at f8. Black pawn at b7, black pawn at c7, black king at e7 and black pawn at f7. Black knight at a6, black pawn at g6 and black knight at h6. Black rook at a5, black pawn at d5 and black pawn at h5. Black pawn at a4, white pawn at b4, white pawn at c4, black bishop at d4, black pawn at f4 and white pawn at g4. White pawn at d3, white king at f3 and white pawn at h3. White pawn at a2, white bishop at b2, white knight at c2 and white pawn at e2. White rook at a1, white queen at d1, white bishop at f1, white knight at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 3. Full move number is 19. White to move.

the output is b2d4

Input: The current state of the chess board is: Black bishop at c8, black queen at d8 and black rook at f8. Black pawn at b7, black pawn at c7, black king at e7 and black pawn at f7. Black knight at a6, black pawn at g6 and black knight at h6. Black rook at a5, black pawn at d5 and black pawn at h5. Black pawn at a4, white pawn at b4, white pawn at c4, black bishop at d4, black pawn at f4 and white pawn at g4. White pawn at d3, white king at f3 and white pawn at h3. White pawn at a2, white bishop at b2, white knight at c2 and white pawn at e2. White rook at a1, white queen at d1, white bishop at f1, white knight at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 3. Full move number is 19. White to move. ; Output: Move from b2 to d4.

rn1qkbnr/p3p1p1/bpp2p1p/3p4/2B4P/4PPPR/PPPP4/RNBQK1N1 b Qkq - 1 7

a6c4

FEN state: rn1qkbnr/p3p1p1/bpp2p1p/3p4/2B4P/4PPPR/PPPP4/RNBQK1N1 b Qkq - 1 7 ; Best movea6c4

The current state of the chess board is: Black rook at a8, black knight at b8, black queen at d8, black king at e8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at a7, black pawn at e7 and black pawn at g7. Black bishop at a6, black pawn at b6, black pawn at c6, black pawn at f6 and black pawn at h6. Black pawn at d5. White bishop at c4 and white pawn at h4. White pawn at e3, white pawn at f3, white pawn at g3 and white rook at h3. White pawn at a2, white pawn at b2, white pawn at c2 and white pawn at d2. White rook at a1, white knight at b1, white bishop at c1, white queen at d1, white king at e1 and white knight at g1. White queenside, black kingside and black queenside castles are available. Half move number is 1. Full move number is 7. Black to move.

the output is a6c4

Input: The current state of the chess board is: Black rook at a8, black knight at b8, black queen at d8, black king at e8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at a7, black pawn at e7 and black pawn at g7. Black bishop at a6, black pawn at b6, black pawn at c6, black pawn at f6 and black pawn at h6. Black pawn at d5. White bishop at c4 and white pawn at h4. White pawn at e3, white pawn at f3, white pawn at g3 and white rook at h3. White pawn at a2, white pawn at b2, white pawn at c2 and white pawn at d2. White rook at a1, white knight at b1, white bishop at c1, white queen at d1, white king at e1 and white knight at g1. White queenside, black kingside and black queenside castles are available. Half move number is 1. Full move number is 7. Black to move. ; Output: Move from a6 to c4.

1r1qkb1r/2p1pp2/1p1p4/p3N1pp/Pn1PnP2/N1P1P2R/1P2K1P1/1RBQ1B2 w k - 1 15

c3b4

FEN state: 1r1qkb1r/2p1pp2/1p1p4/p3N1pp/Pn1PnP2/N1P1P2R/1P2K1P1/1RBQ1B2 w k - 1 15 ; Best movec3b4

The current state of the chess board is: Black rook at b8, black queen at d8, black king at e8, black bishop at f8 and black rook at h8. Black pawn at c7, black pawn at e7 and black pawn at f7. Black pawn at b6 and black pawn at d6. Black pawn at a5, white knight at e5, black pawn at g5 and black pawn at h5. White pawn at a4, black knight at b4, white pawn at d4, black knight at e4 and white pawn at f4. White knight at a3, white pawn at c3, white pawn at e3 and white rook at h3. White pawn at b2, white king at e2 and white pawn at g2. White rook at b1, white bishop at c1, white queen at d1 and white bishop at f1. Black kingside is the only castle move available. Half move number is 1. Full move number is 15. White to move.

the output is c3b4

Input: The current state of the chess board is: Black rook at b8, black queen at d8, black king at e8, black bishop at f8 and black rook at h8. Black pawn at c7, black pawn at e7 and black pawn at f7. Black pawn at b6 and black pawn at d6. Black pawn at a5, white knight at e5, black pawn at g5 and black pawn at h5. White pawn at a4, black knight at b4, white pawn at d4, black knight at e4 and white pawn at f4. White knight at a3, white pawn at c3, white pawn at e3 and white rook at h3. White pawn at b2, white king at e2 and white pawn at g2. White rook at b1, white bishop at c1, white queen at d1 and white bishop at f1. Black kingside is the only castle move available. Half move number is 1. Full move number is 15. White to move. ; Output: Move from c3 to b4.

rq1n1krQ/1bpp1p2/4p2p/pn4PN/Pp2P1P1/8/1P1PK1BP/R1B3bR w - - 0 25

h8h6

FEN state: rq1n1krQ/1bpp1p2/4p2p/pn4PN/Pp2P1P1/8/1P1PK1BP/R1B3bR w - - 0 25 ; Best moveh8h6

The current state of the chess board is: Black rook at a8, black queen at b8, black knight at d8, black king at f8, black rook at g8 and white queen at h8. Black bishop at b7, black pawn at c7, black pawn at d7 and black pawn at f7. Black pawn at e6 and black pawn at h6. Black pawn at a5, black knight at b5, white pawn at g5 and white knight at h5. White pawn at a4, black pawn at b4, white pawn at e4 and white pawn at g4. White pawn at b2, white pawn at d2, white king at e2, white bishop at g2 and white pawn at h2. White rook at a1, white bishop at c1, black bishop at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 0. Full move number is 25. White to move.

the output is h8h6

Input: The current state of the chess board is: Black rook at a8, black queen at b8, black knight at d8, black king at f8, black rook at g8 and white queen at h8. Black bishop at b7, black pawn at c7, black pawn at d7 and black pawn at f7. Black pawn at e6 and black pawn at h6. Black pawn at a5, black knight at b5, white pawn at g5 and white knight at h5. White pawn at a4, black pawn at b4, white pawn at e4 and white pawn at g4. White pawn at b2, white pawn at d2, white king at e2, white bishop at g2 and white pawn at h2. White rook at a1, white bishop at c1, black bishop at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 0. Full move number is 25. White to move. ; Output: Move from h8 to h6.

rnbqkb1r/p1p1np1p/3pp3/1p4p1/3P4/P1N2P2/1PPKP1PP/R1BQ1BNR w kq - 1 6

d2e1

FEN state: rnbqkb1r/p1p1np1p/3pp3/1p4p1/3P4/P1N2P2/1PPKP1PP/R1BQ1BNR w kq - 1 6 ; Best moved2e1

The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black queen at d8, black king at e8, black bishop at f8 and black rook at h8. Black pawn at a7, black pawn at c7, black knight at e7, black pawn at f7 and black pawn at h7. Black pawn at d6 and black pawn at e6. Black pawn at b5 and black pawn at g5. White pawn at d4. White pawn at a3, white knight at c3 and white pawn at f3. White pawn at b2, white pawn at c2, white king at d2, white pawn at e2, white pawn at g2 and white pawn at h2. White rook at a1, white bishop at c1, white queen at d1, white bishop at f1, white knight at g1 and white rook at h1. Black kingside and black queenside castles are available. Half move number is 1. Full move number is 6. White to move.

the output is d2e1

Input: The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black queen at d8, black king at e8, black bishop at f8 and black rook at h8. Black pawn at a7, black pawn at c7, black knight at e7, black pawn at f7 and black pawn at h7. Black pawn at d6 and black pawn at e6. Black pawn at b5 and black pawn at g5. White pawn at d4. White pawn at a3, white knight at c3 and white pawn at f3. White pawn at b2, white pawn at c2, white king at d2, white pawn at e2, white pawn at g2 and white pawn at h2. White rook at a1, white bishop at c1, white queen at d1, white bishop at f1, white knight at g1 and white rook at h1. Black kingside and black queenside castles are available. Half move number is 1. Full move number is 6. White to move. ; Output: Move from d2 to e1.

rn2kr2/1pq1bp2/2N3p1/pPpppb1p/P1P3P1/N3P1P1/2QP2B1/R1B1K2R b KQq - 0 18

f5c2

FEN state: rn2kr2/1pq1bp2/2N3p1/pPpppb1p/P1P3P1/N3P1P1/2QP2B1/R1B1K2R b KQq - 0 18 ; Best movef5c2

The current state of the chess board is: Black rook at a8, black knight at b8, black king at e8 and black rook at f8. Black pawn at b7, black queen at c7, black bishop at e7 and black pawn at f7. White knight at c6 and black pawn at g6. Black pawn at a5, white pawn at b5, black pawn at c5, black pawn at d5, black pawn at e5, black bishop at f5 and black pawn at h5. White pawn at a4, white pawn at c4 and white pawn at g4. White knight at a3, white pawn at e3 and white pawn at g3. White queen at c2, white pawn at d2 and white bishop at g2. White rook at a1, white bishop at c1, white king at e1 and white rook at h1. White kingside, white queenside and black queenside castles are available. Half move number is 0. Full move number is 18. Black to move.

the output is f5c2

Input: The current state of the chess board is: Black rook at a8, black knight at b8, black king at e8 and black rook at f8. Black pawn at b7, black queen at c7, black bishop at e7 and black pawn at f7. White knight at c6 and black pawn at g6. Black pawn at a5, white pawn at b5, black pawn at c5, black pawn at d5, black pawn at e5, black bishop at f5 and black pawn at h5. White pawn at a4, white pawn at c4 and white pawn at g4. White knight at a3, white pawn at e3 and white pawn at g3. White queen at c2, white pawn at d2 and white bishop at g2. White rook at a1, white bishop at c1, white king at e1 and white rook at h1. White kingside, white queenside and black queenside castles are available. Half move number is 0. Full move number is 18. Black to move. ; Output: Move from f5 to c2.

rn1q1n1r/3b2k1/ppBQpp2/1Pb3pp/P1P5/3PP1PP/5P2/RN3KNR w - - 1 22

c6a8

FEN state: rn1q1n1r/3b2k1/ppBQpp2/1Pb3pp/P1P5/3PP1PP/5P2/RN3KNR w - - 1 22 ; Best movec6a8

The current state of the chess board is: Black rook at a8, black knight at b8, black queen at d8, black knight at f8 and black rook at h8. Black bishop at d7 and black king at g7. Black pawn at a6, black pawn at b6, white bishop at c6, white queen at d6, black pawn at e6 and black pawn at f6. White pawn at b5, black bishop at c5, black pawn at g5 and black pawn at h5. White pawn at a4 and white pawn at c4. White pawn at d3, white pawn at e3, white pawn at g3 and white pawn at h3. White pawn at f2. White rook at a1, white knight at b1, white king at f1, white knight at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 1. Full move number is 22. White to move.

the output is c6a8

Input: The current state of the chess board is: Black rook at a8, black knight at b8, black queen at d8, black knight at f8 and black rook at h8. Black bishop at d7 and black king at g7. Black pawn at a6, black pawn at b6, white bishop at c6, white queen at d6, black pawn at e6 and black pawn at f6. White pawn at b5, black bishop at c5, black pawn at g5 and black pawn at h5. White pawn at a4 and white pawn at c4. White pawn at d3, white pawn at e3, white pawn at g3 and white pawn at h3. White pawn at f2. White rook at a1, white knight at b1, white king at f1, white knight at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 1. Full move number is 22. White to move. ; Output: Move from c6 to a8.

r1bqk1nr/1ppp1p1p/p3p1p1/5n2/1bN3P1/P2P4/1PPNPP1P/R1BQKB1R w KQkq - 0 8

a3b4

FEN state: r1bqk1nr/1ppp1p1p/p3p1p1/5n2/1bN3P1/P2P4/1PPNPP1P/R1BQKB1R w KQkq - 0 8 ; Best movea3b4

The current state of the chess board is: Black rook at a8, black bishop at c8, black queen at d8, black king at e8, black knight at g8 and black rook at h8. Black pawn at b7, black pawn at c7, black pawn at d7, black pawn at f7 and black pawn at h7. Black pawn at a6, black pawn at e6 and black pawn at g6. Black knight at f5. Black bishop at b4, white knight at c4 and white pawn at g4. White pawn at a3 and white pawn at d3. White pawn at b2, white pawn at c2, white knight at d2, white pawn at e2, white pawn at f2 and white pawn at h2. White rook at a1, white bishop at c1, white queen at d1, white king at e1, white bishop at f1 and white rook at h1. White kingside, white queenside, black kingside and black queenside castles are available. Half move number is 0. Full move number is 8. White to move.

the output is a3b4

Input: The current state of the chess board is: Black rook at a8, black bishop at c8, black queen at d8, black king at e8, black knight at g8 and black rook at h8. Black pawn at b7, black pawn at c7, black pawn at d7, black pawn at f7 and black pawn at h7. Black pawn at a6, black pawn at e6 and black pawn at g6. Black knight at f5. Black bishop at b4, white knight at c4 and white pawn at g4. White pawn at a3 and white pawn at d3. White pawn at b2, white pawn at c2, white knight at d2, white pawn at e2, white pawn at f2 and white pawn at h2. White rook at a1, white bishop at c1, white queen at d1, white king at e1, white bishop at f1 and white rook at h1. White kingside, white queenside, black kingside and black queenside castles are available. Half move number is 0. Full move number is 8. White to move. ; Output: Move from a3 to b4.

1rb1kb1r/2p3pp/1P6/1P1p1q2/p1nP1PpP/2N5/P3P1B1/R1BQK1NR b KQk - 10 21

f8b4

FEN state: 1rb1kb1r/2p3pp/1P6/1P1p1q2/p1nP1PpP/2N5/P3P1B1/R1BQK1NR b KQk - 10 21 ; Best movef8b4

The current state of the chess board is: Black rook at b8, black bishop at c8, black king at e8, black bishop at f8 and black rook at h8. Black pawn at c7, black pawn at g7 and black pawn at h7. White pawn at b6. White pawn at b5, black pawn at d5 and black queen at f5. Black pawn at a4, black knight at c4, white pawn at d4, white pawn at f4, black pawn at g4 and white pawn at h4. White knight at c3. White pawn at a2, white pawn at e2 and white bishop at g2. White rook at a1, white bishop at c1, white queen at d1, white king at e1, white knight at g1 and white rook at h1. White kingside, white queenside and black kingside castles are available. Half move number is 10. Full move number is 21. Black to move.

the output is f8b4

Input: The current state of the chess board is: Black rook at b8, black bishop at c8, black king at e8, black bishop at f8 and black rook at h8. Black pawn at c7, black pawn at g7 and black pawn at h7. White pawn at b6. White pawn at b5, black pawn at d5 and black queen at f5. Black pawn at a4, black knight at c4, white pawn at d4, white pawn at f4, black pawn at g4 and white pawn at h4. White knight at c3. White pawn at a2, white pawn at e2 and white bishop at g2. White rook at a1, white bishop at c1, white queen at d1, white king at e1, white knight at g1 and white rook at h1. White kingside, white queenside and black kingside castles are available. Half move number is 10. Full move number is 21. Black to move. ; Output: Move from f8 to b4.

rnbqkb1r/p1p3pp/3p1p1n/1p2p3/P3N3/4PP2/1PPP2PP/R1BQKBNR w KQkq - 0 6

a4b5

FEN state: rnbqkb1r/p1p3pp/3p1p1n/1p2p3/P3N3/4PP2/1PPP2PP/R1BQKBNR w KQkq - 0 6 ; Best movea4b5

The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black queen at d8, black king at e8, black bishop at f8 and black rook at h8. Black pawn at a7, black pawn at c7, black pawn at g7 and black pawn at h7. Black pawn at d6, black pawn at f6 and black knight at h6. Black pawn at b5 and black pawn at e5. White pawn at a4 and white knight at e4. White pawn at e3 and white pawn at f3. White pawn at b2, white pawn at c2, white pawn at d2, white pawn at g2 and white pawn at h2. White rook at a1, white bishop at c1, white queen at d1, white king at e1, white bishop at f1, white knight at g1 and white rook at h1. White kingside, white queenside, black kingside and black queenside castles are available. Half move number is 0. Full move number is 6. White to move.

the output is a4b5

Input: The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black queen at d8, black king at e8, black bishop at f8 and black rook at h8. Black pawn at a7, black pawn at c7, black pawn at g7 and black pawn at h7. Black pawn at d6, black pawn at f6 and black knight at h6. Black pawn at b5 and black pawn at e5. White pawn at a4 and white knight at e4. White pawn at e3 and white pawn at f3. White pawn at b2, white pawn at c2, white pawn at d2, white pawn at g2 and white pawn at h2. White rook at a1, white bishop at c1, white queen at d1, white king at e1, white bishop at f1, white knight at g1 and white rook at h1. White kingside, white queenside, black kingside and black queenside castles are available. Half move number is 0. Full move number is 6. White to move. ; Output: Move from a4 to b5.

r1b1kbn1/2p1Np1r/3p1qp1/pp2p3/Pn4pP/B1P1PP2/3PQ1B1/RN2K2R b KQq - 1 14

f8e7

FEN state: r1b1kbn1/2p1Np1r/3p1qp1/pp2p3/Pn4pP/B1P1PP2/3PQ1B1/RN2K2R b KQq - 1 14 ; Best movef8e7

The current state of the chess board is: Black rook at a8, black bishop at c8, black king at e8, black bishop at f8 and black knight at g8. Black pawn at c7, white knight at e7, black pawn at f7 and black rook at h7. Black pawn at d6, black queen at f6 and black pawn at g6. Black pawn at a5, black pawn at b5 and black pawn at e5. White pawn at a4, black knight at b4, black pawn at g4 and white pawn at h4. White bishop at a3, white pawn at c3, white pawn at e3 and white pawn at f3. White pawn at d2, white queen at e2 and white bishop at g2. White rook at a1, white knight at b1, white king at e1 and white rook at h1. White kingside, white queenside and black queenside castles are available. Half move number is 1. Full move number is 14. Black to move.

the output is f8e7

Input: The current state of the chess board is: Black rook at a8, black bishop at c8, black king at e8, black bishop at f8 and black knight at g8. Black pawn at c7, white knight at e7, black pawn at f7 and black rook at h7. Black pawn at d6, black queen at f6 and black pawn at g6. Black pawn at a5, black pawn at b5 and black pawn at e5. White pawn at a4, black knight at b4, black pawn at g4 and white pawn at h4. White bishop at a3, white pawn at c3, white pawn at e3 and white pawn at f3. White pawn at d2, white queen at e2 and white bishop at g2. White rook at a1, white knight at b1, white king at e1 and white rook at h1. White kingside, white queenside and black queenside castles are available. Half move number is 1. Full move number is 14. Black to move. ; Output: Move from f8 to e7.

rn1qkbnr/2pbpppp/1p1p4/p1P5/1P4P1/4P2P/P2P1P1N/RNBQKB1R b KQkq - 0 11

a5b4

FEN state: rn1qkbnr/2pbpppp/1p1p4/p1P5/1P4P1/4P2P/P2P1P1N/RNBQKB1R b KQkq - 0 11 ; Best movea5b4

The current state of the chess board is: Black rook at a8, black knight at b8, black queen at d8, black king at e8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at c7, black bishop at d7, black pawn at e7, black pawn at f7, black pawn at g7 and black pawn at h7. Black pawn at b6 and black pawn at d6. Black pawn at a5 and white pawn at c5. White pawn at b4 and white pawn at g4. White pawn at e3 and white pawn at h3. White pawn at a2, white pawn at d2, white pawn at f2 and white knight at h2. White rook at a1, white knight at b1, white bishop at c1, white queen at d1, white king at e1, white bishop at f1 and white rook at h1. White kingside, white queenside, black kingside and black queenside castles are available. Half move number is 0. Full move number is 11. Black to move.

the output is a5b4

Input: The current state of the chess board is: Black rook at a8, black knight at b8, black queen at d8, black king at e8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at c7, black bishop at d7, black pawn at e7, black pawn at f7, black pawn at g7 and black pawn at h7. Black pawn at b6 and black pawn at d6. Black pawn at a5 and white pawn at c5. White pawn at b4 and white pawn at g4. White pawn at e3 and white pawn at h3. White pawn at a2, white pawn at d2, white pawn at f2 and white knight at h2. White rook at a1, white knight at b1, white bishop at c1, white queen at d1, white king at e1, white bishop at f1 and white rook at h1. White kingside, white queenside, black kingside and black queenside castles are available. Half move number is 0. Full move number is 11. Black to move. ; Output: Move from a5 to b4.

r1b1kbnr/ppnqpppp/8/1p1p4/2P2PP1/P3P2B/1Q1P3P/RNB1K1NR w KQkq - 0 11

c4b5

FEN state: r1b1kbnr/ppnqpppp/8/1p1p4/2P2PP1/P3P2B/1Q1P3P/RNB1K1NR w KQkq - 0 11 ; Best movec4b5

The current state of the chess board is: Black rook at a8, black bishop at c8, black king at e8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at a7, black pawn at b7, black knight at c7, black queen at d7, black pawn at e7, black pawn at f7, black pawn at g7 and black pawn at h7. Black pawn at b5 and black pawn at d5. White pawn at c4, white pawn at f4 and white pawn at g4. White pawn at a3, white pawn at e3 and white bishop at h3. White queen at b2, white pawn at d2 and white pawn at h2. White rook at a1, white knight at b1, white bishop at c1, white king at e1, white knight at g1 and white rook at h1. White kingside, white queenside, black kingside and black queenside castles are available. Half move number is 0. Full move number is 11. White to move.

the output is c4b5

Input: The current state of the chess board is: Black rook at a8, black bishop at c8, black king at e8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at a7, black pawn at b7, black knight at c7, black queen at d7, black pawn at e7, black pawn at f7, black pawn at g7 and black pawn at h7. Black pawn at b5 and black pawn at d5. White pawn at c4, white pawn at f4 and white pawn at g4. White pawn at a3, white pawn at e3 and white bishop at h3. White queen at b2, white pawn at d2 and white pawn at h2. White rook at a1, white knight at b1, white bishop at c1, white king at e1, white knight at g1 and white rook at h1. White kingside, white queenside, black kingside and black queenside castles are available. Half move number is 0. Full move number is 11. White to move. ; Output: Move from c4 to b5.

1nbkr3/7p/rp1p3b/pqp1ppp1/P1PP2P1/B3P2P/R2NB2R/3Q1KN1 b - - 1 21

b5d7

FEN state: 1nbkr3/7p/rp1p3b/pqp1ppp1/P1PP2P1/B3P2P/R2NB2R/3Q1KN1 b - - 1 21 ; Best moveb5d7

The current state of the chess board is: Black knight at b8, black bishop at c8, black king at d8 and black rook at e8. Black pawn at h7. Black rook at a6, black pawn at b6, black pawn at d6 and black bishop at h6. Black pawn at a5, black queen at b5, black pawn at c5, black pawn at e5, black pawn at f5 and black pawn at g5. White pawn at a4, white pawn at c4, white pawn at d4 and white pawn at g4. White bishop at a3, white pawn at e3 and white pawn at h3. White rook at a2, white knight at d2, white bishop at e2 and white rook at h2. White queen at d1, white king at f1 and white knight at g1. Both players have exhausted their castles. Half move number is 1. Full move number is 21. Black to move.

the output is b5d7

Input: The current state of the chess board is: Black knight at b8, black bishop at c8, black king at d8 and black rook at e8. Black pawn at h7. Black rook at a6, black pawn at b6, black pawn at d6 and black bishop at h6. Black pawn at a5, black queen at b5, black pawn at c5, black pawn at e5, black pawn at f5 and black pawn at g5. White pawn at a4, white pawn at c4, white pawn at d4 and white pawn at g4. White bishop at a3, white pawn at e3 and white pawn at h3. White rook at a2, white knight at d2, white bishop at e2 and white rook at h2. White queen at d1, white king at f1 and white knight at g1. Both players have exhausted their castles. Half move number is 1. Full move number is 21. Black to move. ; Output: Move from b5 to d7.

1rb1k2r/5p1p/pNPp2p1/2p1pnq1/4P3/P5P1/2PbQPBP/RNB3KR w k - 2 18

e2d2

FEN state: 1rb1k2r/5p1p/pNPp2p1/2p1pnq1/4P3/P5P1/2PbQPBP/RNB3KR w k - 2 18 ; Best movee2d2

The current state of the chess board is: Black rook at b8, black bishop at c8, black king at e8 and black rook at h8. Black pawn at f7 and black pawn at h7. Black pawn at a6, white knight at b6, white pawn at c6, black pawn at d6 and black pawn at g6. Black pawn at c5, black pawn at e5, black knight at f5 and black queen at g5. White pawn at e4. White pawn at a3 and white pawn at g3. White pawn at c2, black bishop at d2, white queen at e2, white pawn at f2, white bishop at g2 and white pawn at h2. White rook at a1, white knight at b1, white bishop at c1, white king at g1 and white rook at h1. Black kingside is the only castle move available. Half move number is 2. Full move number is 18. White to move.

the output is e2d2

Input: The current state of the chess board is: Black rook at b8, black bishop at c8, black king at e8 and black rook at h8. Black pawn at f7 and black pawn at h7. Black pawn at a6, white knight at b6, white pawn at c6, black pawn at d6 and black pawn at g6. Black pawn at c5, black pawn at e5, black knight at f5 and black queen at g5. White pawn at e4. White pawn at a3 and white pawn at g3. White pawn at c2, black bishop at d2, white queen at e2, white pawn at f2, white bishop at g2 and white pawn at h2. White rook at a1, white knight at b1, white bishop at c1, white king at g1 and white rook at h1. Black kingside is the only castle move available. Half move number is 2. Full move number is 18. White to move. ; Output: Move from e2 to d2.

r1bqkb2/p3p1p1/np1p1p2/2p2Pr1/1PPPQ2p/2B2N1P/P3P3/RN1nKB1R b KQq - 3 16

c8f5

FEN state: r1bqkb2/p3p1p1/np1p1p2/2p2Pr1/1PPPQ2p/2B2N1P/P3P3/RN1nKB1R b KQq - 3 16 ; Best movec8f5

The current state of the chess board is: Black rook at a8, black bishop at c8, black queen at d8, black king at e8 and black bishop at f8. Black pawn at a7, black pawn at e7 and black pawn at g7. Black knight at a6, black pawn at b6, black pawn at d6 and black pawn at f6. Black pawn at c5, white pawn at f5 and black rook at g5. White pawn at b4, white pawn at c4, white pawn at d4, white queen at e4 and black pawn at h4. White bishop at c3, white knight at f3 and white pawn at h3. White pawn at a2 and white pawn at e2. White rook at a1, white knight at b1, black knight at d1, white king at e1, white bishop at f1 and white rook at h1. White kingside, white queenside and black queenside castles are available. Half move number is 3. Full move number is 16. Black to move.

the output is c8f5

Input: The current state of the chess board is: Black rook at a8, black bishop at c8, black queen at d8, black king at e8 and black bishop at f8. Black pawn at a7, black pawn at e7 and black pawn at g7. Black knight at a6, black pawn at b6, black pawn at d6 and black pawn at f6. Black pawn at c5, white pawn at f5 and black rook at g5. White pawn at b4, white pawn at c4, white pawn at d4, white queen at e4 and black pawn at h4. White bishop at c3, white knight at f3 and white pawn at h3. White pawn at a2 and white pawn at e2. White rook at a1, white knight at b1, black knight at d1, white king at e1, white bishop at f1 and white rook at h1. White kingside, white queenside and black queenside castles are available. Half move number is 3. Full move number is 16. Black to move. ; Output: Move from c8 to f5.

1n2kb1r/4pp1p/1p3n2/1Np1P1pP/p1P3PR/4K3/PP1B1Pb1/R3Q1N1 b - - 0 20

g5h4

FEN state: 1n2kb1r/4pp1p/1p3n2/1Np1P1pP/p1P3PR/4K3/PP1B1Pb1/R3Q1N1 b - - 0 20 ; Best moveg5h4

The current state of the chess board is: Black knight at b8, black king at e8, black bishop at f8 and black rook at h8. Black pawn at e7, black pawn at f7 and black pawn at h7. Black pawn at b6 and black knight at f6. White knight at b5, black pawn at c5, white pawn at e5, black pawn at g5 and white pawn at h5. Black pawn at a4, white pawn at c4, white pawn at g4 and white rook at h4. White king at e3. White pawn at a2, white pawn at b2, white bishop at d2, white pawn at f2 and black bishop at g2. White rook at a1, white queen at e1 and white knight at g1. Both players have exhausted their castles. Half move number is 0. Full move number is 20. Black to move.

the output is g5h4

Input: The current state of the chess board is: Black knight at b8, black king at e8, black bishop at f8 and black rook at h8. Black pawn at e7, black pawn at f7 and black pawn at h7. Black pawn at b6 and black knight at f6. White knight at b5, black pawn at c5, white pawn at e5, black pawn at g5 and white pawn at h5. Black pawn at a4, white pawn at c4, white pawn at g4 and white rook at h4. White king at e3. White pawn at a2, white pawn at b2, white bishop at d2, white pawn at f2 and black bishop at g2. White rook at a1, white queen at e1 and white knight at g1. Both players have exhausted their castles. Half move number is 0. Full move number is 20. Black to move. ; Output: Move from g5 to h4.

r1b1k2r/p2pnpp1/2p4p/q3p3/np3bP1/N4N2/RP1PPPR1/2BQKB2 w kq - 0 17

a3c4

FEN state: r1b1k2r/p2pnpp1/2p4p/q3p3/np3bP1/N4N2/RP1PPPR1/2BQKB2 w kq - 0 17 ; Best movea3c4

The current state of the chess board is: Black rook at a8, black bishop at c8, black king at e8 and black rook at h8. Black pawn at a7, black pawn at d7, black knight at e7, black pawn at f7 and black pawn at g7. Black pawn at c6 and black pawn at h6. Black queen at a5 and black pawn at e5. Black knight at a4, black pawn at b4, black bishop at f4 and white pawn at g4. White knight at a3 and white knight at f3. White rook at a2, white pawn at b2, white pawn at d2, white pawn at e2, white pawn at f2 and white rook at g2. White bishop at c1, white queen at d1, white king at e1 and white bishop at f1. Black kingside and black queenside castles are available. Half move number is 0. Full move number is 17. White to move.

the output is a3c4

Input: The current state of the chess board is: Black rook at a8, black bishop at c8, black king at e8 and black rook at h8. Black pawn at a7, black pawn at d7, black knight at e7, black pawn at f7 and black pawn at g7. Black pawn at c6 and black pawn at h6. Black queen at a5 and black pawn at e5. Black knight at a4, black pawn at b4, black bishop at f4 and white pawn at g4. White knight at a3 and white knight at f3. White rook at a2, white pawn at b2, white pawn at d2, white pawn at e2, white pawn at f2 and white rook at g2. White bishop at c1, white queen at d1, white king at e1 and white bishop at f1. Black kingside and black queenside castles are available. Half move number is 0. Full move number is 17. White to move. ; Output: Move from a3 to c4.

r1b3k1/p1n5/1pp4P/2b5/2qPp3/1P5N/PBN1PPPR/1R2KB2 w - - 6 25

b3c4

FEN state: r1b3k1/p1n5/1pp4P/2b5/2qPp3/1P5N/PBN1PPPR/1R2KB2 w - - 6 25 ; Best moveb3c4

The current state of the chess board is: Black rook at a8, black bishop at c8 and black king at g8. Black pawn at a7 and black knight at c7. Black pawn at b6, black pawn at c6 and white pawn at h6. Black bishop at c5. Black queen at c4, white pawn at d4 and black pawn at e4. White pawn at b3 and white knight at h3. White pawn at a2, white bishop at b2, white knight at c2, white pawn at e2, white pawn at f2, white pawn at g2 and white rook at h2. White rook at b1, white king at e1 and white bishop at f1. Both players have exhausted their castles. Half move number is 6. Full move number is 25. White to move.

the output is b3c4

Input: The current state of the chess board is: Black rook at a8, black bishop at c8 and black king at g8. Black pawn at a7 and black knight at c7. Black pawn at b6, black pawn at c6 and white pawn at h6. Black bishop at c5. Black queen at c4, white pawn at d4 and black pawn at e4. White pawn at b3 and white knight at h3. White pawn at a2, white bishop at b2, white knight at c2, white pawn at e2, white pawn at f2, white pawn at g2 and white rook at h2. White rook at b1, white king at e1 and white bishop at f1. Both players have exhausted their castles. Half move number is 6. Full move number is 25. White to move. ; Output: Move from b3 to c4.

rnb1k2r/1qp3b1/3Pp2p/pp1P2pn/PP4P1/7P/4PPRN/2QRKB2 w - - 0 25

g4h5

FEN state: rnb1k2r/1qp3b1/3Pp2p/pp1P2pn/PP4P1/7P/4PPRN/2QRKB2 w - - 0 25 ; Best moveg4h5

The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black king at e8 and black rook at h8. Black queen at b7, black pawn at c7 and black bishop at g7. White pawn at d6, black pawn at e6 and black pawn at h6. Black pawn at a5, black pawn at b5, white pawn at d5, black pawn at g5 and black knight at h5. White pawn at a4, white pawn at b4 and white pawn at g4. White pawn at h3. White pawn at e2, white pawn at f2, white rook at g2 and white knight at h2. White queen at c1, white rook at d1, white king at e1 and white bishop at f1. Both players have exhausted their castles. Half move number is 0. Full move number is 25. White to move.

the output is g4h5

Input: The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black king at e8 and black rook at h8. Black queen at b7, black pawn at c7 and black bishop at g7. White pawn at d6, black pawn at e6 and black pawn at h6. Black pawn at a5, black pawn at b5, white pawn at d5, black pawn at g5 and black knight at h5. White pawn at a4, white pawn at b4 and white pawn at g4. White pawn at h3. White pawn at e2, white pawn at f2, white rook at g2 and white knight at h2. White queen at c1, white rook at d1, white king at e1 and white bishop at f1. Both players have exhausted their castles. Half move number is 0. Full move number is 25. White to move. ; Output: Move from g4 to h5.

3krb2/3p3r/bp2p1Np/2p5/p1P1P2P/P4Q2/1B1P1PP1/RN1R2K1 b - - 5 21

f8d6

FEN state: 3krb2/3p3r/bp2p1Np/2p5/p1P1P2P/P4Q2/1B1P1PP1/RN1R2K1 b - - 5 21 ; Best movef8d6

The current state of the chess board is: Black king at d8, black rook at e8 and black bishop at f8. Black pawn at d7 and black rook at h7. Black bishop at a6, black pawn at b6, black pawn at e6, white knight at g6 and black pawn at h6. Black pawn at c5. Black pawn at a4, white pawn at c4, white pawn at e4 and white pawn at h4. White pawn at a3 and white queen at f3. White bishop at b2, white pawn at d2, white pawn at f2 and white pawn at g2. White rook at a1, white knight at b1, white rook at d1 and white king at g1. Both players have exhausted their castles. Half move number is 5. Full move number is 21. Black to move.

the output is f8d6

Input: The current state of the chess board is: Black king at d8, black rook at e8 and black bishop at f8. Black pawn at d7 and black rook at h7. Black bishop at a6, black pawn at b6, black pawn at e6, white knight at g6 and black pawn at h6. Black pawn at c5. Black pawn at a4, white pawn at c4, white pawn at e4 and white pawn at h4. White pawn at a3 and white queen at f3. White bishop at b2, white pawn at d2, white pawn at f2 and white pawn at g2. White rook at a1, white knight at b1, white rook at d1 and white king at g1. Both players have exhausted their castles. Half move number is 5. Full move number is 21. Black to move. ; Output: Move from f8 to d6.

rnbq1bnr/3ppkpp/2p5/pp3P2/4NP2/8/PPPPB1PP/R1BQK1NR b KQ - 1 6

g8h6

FEN state: rnbq1bnr/3ppkpp/2p5/pp3P2/4NP2/8/PPPPB1PP/R1BQK1NR b KQ - 1 6 ; Best moveg8h6

The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black queen at d8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at d7, black pawn at e7, black king at f7, black pawn at g7 and black pawn at h7. Black pawn at c6. Black pawn at a5, black pawn at b5 and white pawn at f5. White knight at e4 and white pawn at f4. White pawn at a2, white pawn at b2, white pawn at c2, white pawn at d2, white bishop at e2, white pawn at g2 and white pawn at h2. White rook at a1, white bishop at c1, white queen at d1, white king at e1, white knight at g1 and white rook at h1. White kingside and white queenside castles are available. Half move number is 1. Full move number is 6. Black to move.

the output is g8h6

Input: The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black queen at d8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at d7, black pawn at e7, black king at f7, black pawn at g7 and black pawn at h7. Black pawn at c6. Black pawn at a5, black pawn at b5 and white pawn at f5. White knight at e4 and white pawn at f4. White pawn at a2, white pawn at b2, white pawn at c2, white pawn at d2, white bishop at e2, white pawn at g2 and white pawn at h2. White rook at a1, white bishop at c1, white queen at d1, white king at e1, white knight at g1 and white rook at h1. White kingside and white queenside castles are available. Half move number is 1. Full move number is 6. Black to move. ; Output: Move from g8 to h6.

3qkbnr/1bppp3/r1n3pp/p7/1Q1P1P1P/2P1p1N1/PP4P1/RNB1KB1R w KQk - 1 15

b4b3

FEN state: 3qkbnr/1bppp3/r1n3pp/p7/1Q1P1P1P/2P1p1N1/PP4P1/RNB1KB1R w KQk - 1 15 ; Best moveb4b3

The current state of the chess board is: Black queen at d8, black king at e8, black bishop at f8, black knight at g8 and black rook at h8. Black bishop at b7, black pawn at c7, black pawn at d7 and black pawn at e7. Black rook at a6, black knight at c6, black pawn at g6 and black pawn at h6. Black pawn at a5. White queen at b4, white pawn at d4, white pawn at f4 and white pawn at h4. White pawn at c3, black pawn at e3 and white knight at g3. White pawn at a2, white pawn at b2 and white pawn at g2. White rook at a1, white knight at b1, white bishop at c1, white king at e1, white bishop at f1 and white rook at h1. White kingside, white queenside and black kingside castles are available. Half move number is 1. Full move number is 15. White to move.

the output is b4b3

Input: The current state of the chess board is: Black queen at d8, black king at e8, black bishop at f8, black knight at g8 and black rook at h8. Black bishop at b7, black pawn at c7, black pawn at d7 and black pawn at e7. Black rook at a6, black knight at c6, black pawn at g6 and black pawn at h6. Black pawn at a5. White queen at b4, white pawn at d4, white pawn at f4 and white pawn at h4. White pawn at c3, black pawn at e3 and white knight at g3. White pawn at a2, white pawn at b2 and white pawn at g2. White rook at a1, white knight at b1, white bishop at c1, white king at e1, white bishop at f1 and white rook at h1. White kingside, white queenside and black kingside castles are available. Half move number is 1. Full move number is 15. White to move. ; Output: Move from b4 to b3.

1rbr4/pp1p2kp/3N2pb/2p1p1p1/1QPn4/2K1PPP1/PP1P1nB1/R1B3NR w - - 14 20

b4c5

FEN state: 1rbr4/pp1p2kp/3N2pb/2p1p1p1/1QPn4/2K1PPP1/PP1P1nB1/R1B3NR w - - 14 20 ; Best moveb4c5

The current state of the chess board is: Black rook at b8, black bishop at c8 and black rook at d8. Black pawn at a7, black pawn at b7, black pawn at d7, black king at g7 and black pawn at h7. White knight at d6, black pawn at g6 and black bishop at h6. Black pawn at c5, black pawn at e5 and black pawn at g5. White queen at b4, white pawn at c4 and black knight at d4. White king at c3, white pawn at e3, white pawn at f3 and white pawn at g3. White pawn at a2, white pawn at b2, white pawn at d2, black knight at f2 and white bishop at g2. White rook at a1, white bishop at c1, white knight at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 14. Full move number is 20. White to move.

the output is b4c5

Input: The current state of the chess board is: Black rook at b8, black bishop at c8 and black rook at d8. Black pawn at a7, black pawn at b7, black pawn at d7, black king at g7 and black pawn at h7. White knight at d6, black pawn at g6 and black bishop at h6. Black pawn at c5, black pawn at e5 and black pawn at g5. White queen at b4, white pawn at c4 and black knight at d4. White king at c3, white pawn at e3, white pawn at f3 and white pawn at g3. White pawn at a2, white pawn at b2, white pawn at d2, black knight at f2 and white bishop at g2. White rook at a1, white bishop at c1, white knight at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 14. Full move number is 20. White to move. ; Output: Move from b4 to c5.

1n2kb1r/3p1ppp/rp1n3q/2p5/2bPP2R/2p5/PRP1P1P1/3QKBN1 w k - 1 24

h4h6

FEN state: 1n2kb1r/3p1ppp/rp1n3q/2p5/2bPP2R/2p5/PRP1P1P1/3QKBN1 w k - 1 24 ; Best moveh4h6

The current state of the chess board is: Black knight at b8, black king at e8, black bishop at f8 and black rook at h8. Black pawn at d7, black pawn at f7, black pawn at g7 and black pawn at h7. Black rook at a6, black pawn at b6, black knight at d6 and black queen at h6. Black pawn at c5. Black bishop at c4, white pawn at d4, white pawn at e4 and white rook at h4. Black pawn at c3. White pawn at a2, white rook at b2, white pawn at c2, white pawn at e2 and white pawn at g2. White queen at d1, white king at e1, white bishop at f1 and white knight at g1. Black kingside is the only castle move available. Half move number is 1. Full move number is 24. White to move.

the output is h4h6

Input: The current state of the chess board is: Black knight at b8, black king at e8, black bishop at f8 and black rook at h8. Black pawn at d7, black pawn at f7, black pawn at g7 and black pawn at h7. Black rook at a6, black pawn at b6, black knight at d6 and black queen at h6. Black pawn at c5. Black bishop at c4, white pawn at d4, white pawn at e4 and white rook at h4. Black pawn at c3. White pawn at a2, white rook at b2, white pawn at c2, white pawn at e2 and white pawn at g2. White queen at d1, white king at e1, white bishop at f1 and white knight at g1. Black kingside is the only castle move available. Half move number is 1. Full move number is 24. White to move. ; Output: Move from h4 to h6.

rk6/pb1p2pr/n1p1p3/2b2p2/pqNP2PP/2PKR3/1P1B1P2/R4BN1 w - - 3 20

c3b4

FEN state: rk6/pb1p2pr/n1p1p3/2b2p2/pqNP2PP/2PKR3/1P1B1P2/R4BN1 w - - 3 20 ; Best movec3b4

The current state of the chess board is: Black rook at a8 and black king at b8. Black pawn at a7, black bishop at b7, black pawn at d7, black pawn at g7 and black rook at h7. Black knight at a6, black pawn at c6 and black pawn at e6. Black bishop at c5 and black pawn at f5. Black pawn at a4, black queen at b4, white knight at c4, white pawn at d4, white pawn at g4 and white pawn at h4. White pawn at c3, white king at d3 and white rook at e3. White pawn at b2, white bishop at d2 and white pawn at f2. White rook at a1, white bishop at f1 and white knight at g1. Both players have exhausted their castles. Half move number is 3. Full move number is 20. White to move.

the output is c3b4

Input: The current state of the chess board is: Black rook at a8 and black king at b8. Black pawn at a7, black bishop at b7, black pawn at d7, black pawn at g7 and black rook at h7. Black knight at a6, black pawn at c6 and black pawn at e6. Black bishop at c5 and black pawn at f5. Black pawn at a4, black queen at b4, white knight at c4, white pawn at d4, white pawn at g4 and white pawn at h4. White pawn at c3, white king at d3 and white rook at e3. White pawn at b2, white bishop at d2 and white pawn at f2. White rook at a1, white bishop at f1 and white knight at g1. Both players have exhausted their castles. Half move number is 3. Full move number is 20. White to move. ; Output: Move from c3 to b4.

1n1k1b2/4p1r1/rpP2pB1/p1P3p1/P2q1P1p/4PbNP/R2P1n2/1NB1KR2 w - - 3 24

e3d4

FEN state: 1n1k1b2/4p1r1/rpP2pB1/p1P3p1/P2q1P1p/4PbNP/R2P1n2/1NB1KR2 w - - 3 24 ; Best movee3d4

The current state of the chess board is: Black knight at b8, black king at d8 and black bishop at f8. Black pawn at e7 and black rook at g7. Black rook at a6, black pawn at b6, white pawn at c6, black pawn at f6 and white bishop at g6. Black pawn at a5, white pawn at c5 and black pawn at g5. White pawn at a4, black queen at d4, white pawn at f4 and black pawn at h4. White pawn at e3, black bishop at f3, white knight at g3 and white pawn at h3. White rook at a2, white pawn at d2 and black knight at f2. White knight at b1, white bishop at c1, white king at e1 and white rook at f1. Both players have exhausted their castles. Half move number is 3. Full move number is 24. White to move.

the output is e3d4

Input: The current state of the chess board is: Black knight at b8, black king at d8 and black bishop at f8. Black pawn at e7 and black rook at g7. Black rook at a6, black pawn at b6, white pawn at c6, black pawn at f6 and white bishop at g6. Black pawn at a5, white pawn at c5 and black pawn at g5. White pawn at a4, black queen at d4, white pawn at f4 and black pawn at h4. White pawn at e3, black bishop at f3, white knight at g3 and white pawn at h3. White rook at a2, white pawn at d2 and black knight at f2. White knight at b1, white bishop at c1, white king at e1 and white rook at f1. Both players have exhausted their castles. Half move number is 3. Full move number is 24. White to move. ; Output: Move from e3 to d4.

rn2k1nr/p4p2/3B2p1/2pppb1p/1PPPPq2/6PR/1Q2KP2/R2N1BN1 b - - 2 22

f4e4

FEN state: rn2k1nr/p4p2/3B2p1/2pppb1p/1PPPPq2/6PR/1Q2KP2/R2N1BN1 b - - 2 22 ; Best movef4e4

The current state of the chess board is: Black rook at a8, black knight at b8, black king at e8, black knight at g8 and black rook at h8. Black pawn at a7 and black pawn at f7. White bishop at d6 and black pawn at g6. Black pawn at c5, black pawn at d5, black pawn at e5, black bishop at f5 and black pawn at h5. White pawn at b4, white pawn at c4, white pawn at d4, white pawn at e4 and black queen at f4. White pawn at g3 and white rook at h3. White queen at b2, white king at e2 and white pawn at f2. White rook at a1, white knight at d1, white bishop at f1 and white knight at g1. Both players have exhausted their castles. Half move number is 2. Full move number is 22. Black to move.

the output is f4e4

Input: The current state of the chess board is: Black rook at a8, black knight at b8, black king at e8, black knight at g8 and black rook at h8. Black pawn at a7 and black pawn at f7. White bishop at d6 and black pawn at g6. Black pawn at c5, black pawn at d5, black pawn at e5, black bishop at f5 and black pawn at h5. White pawn at b4, white pawn at c4, white pawn at d4, white pawn at e4 and black queen at f4. White pawn at g3 and white rook at h3. White queen at b2, white king at e2 and white pawn at f2. White rook at a1, white knight at d1, white bishop at f1 and white knight at g1. Both players have exhausted their castles. Half move number is 2. Full move number is 22. Black to move. ; Output: Move from f4 to e4.

r1bqkb2/2pp2p1/7r/p3ppBp/Q1n3PP/P2P4/1P2P3/2RK1BNR b q - 0 18

c4b2

FEN state: r1bqkb2/2pp2p1/7r/p3ppBp/Q1n3PP/P2P4/1P2P3/2RK1BNR b q - 0 18 ; Best movec4b2

The current state of the chess board is: Black rook at a8, black bishop at c8, black queen at d8, black king at e8 and black bishop at f8. Black pawn at c7, black pawn at d7 and black pawn at g7. Black rook at h6. Black pawn at a5, black pawn at e5, black pawn at f5, white bishop at g5 and black pawn at h5. White queen at a4, black knight at c4, white pawn at g4 and white pawn at h4. White pawn at a3 and white pawn at d3. White pawn at b2 and white pawn at e2. White rook at c1, white king at d1, white bishop at f1, white knight at g1 and white rook at h1. Black queenside is the only castle move available. Half move number is 0. Full move number is 18. Black to move.

the output is c4b2

Input: The current state of the chess board is: Black rook at a8, black bishop at c8, black queen at d8, black king at e8 and black bishop at f8. Black pawn at c7, black pawn at d7 and black pawn at g7. Black rook at h6. Black pawn at a5, black pawn at e5, black pawn at f5, white bishop at g5 and black pawn at h5. White queen at a4, black knight at c4, white pawn at g4 and white pawn at h4. White pawn at a3 and white pawn at d3. White pawn at b2 and white pawn at e2. White rook at c1, white king at d1, white bishop at f1, white knight at g1 and white rook at h1. Black queenside is the only castle move available. Half move number is 0. Full move number is 18. Black to move. ; Output: Move from c4 to b2.

r1b1k1nr/pRp2ppp/n2q4/3p4/6P1/b4P1N/P1PPP2P/2BQKB1R b Kkq - 0 10

c8b7

FEN state: r1b1k1nr/pRp2ppp/n2q4/3p4/6P1/b4P1N/P1PPP2P/2BQKB1R b Kkq - 0 10 ; Best movec8b7

The current state of the chess board is: Black rook at a8, black bishop at c8, black king at e8, black knight at g8 and black rook at h8. Black pawn at a7, white rook at b7, black pawn at c7, black pawn at f7, black pawn at g7 and black pawn at h7. Black knight at a6 and black queen at d6. Black pawn at d5. White pawn at g4. Black bishop at a3, white pawn at f3 and white knight at h3. White pawn at a2, white pawn at c2, white pawn at d2, white pawn at e2 and white pawn at h2. White bishop at c1, white queen at d1, white king at e1, white bishop at f1 and white rook at h1. White kingside, black kingside and black queenside castles are available. Half move number is 0. Full move number is 10. Black to move.

the output is c8b7

Input: The current state of the chess board is: Black rook at a8, black bishop at c8, black king at e8, black knight at g8 and black rook at h8. Black pawn at a7, white rook at b7, black pawn at c7, black pawn at f7, black pawn at g7 and black pawn at h7. Black knight at a6 and black queen at d6. Black pawn at d5. White pawn at g4. Black bishop at a3, white pawn at f3 and white knight at h3. White pawn at a2, white pawn at c2, white pawn at d2, white pawn at e2 and white pawn at h2. White bishop at c1, white queen at d1, white king at e1, white bishop at f1 and white rook at h1. White kingside, black kingside and black queenside castles are available. Half move number is 0. Full move number is 10. Black to move. ; Output: Move from c8 to b7.

1nb2b1r/1pqpk1pp/2r2p1n/p1p1p1P1/8/PPN1PNRP/R1PP1P2/2BQKB2 w - - 3 12

g5h6

FEN state: 1nb2b1r/1pqpk1pp/2r2p1n/p1p1p1P1/8/PPN1PNRP/R1PP1P2/2BQKB2 w - - 3 12 ; Best moveg5h6

The current state of the chess board is: Black knight at b8, black bishop at c8, black bishop at f8 and black rook at h8. Black pawn at b7, black queen at c7, black pawn at d7, black king at e7, black pawn at g7 and black pawn at h7. Black rook at c6, black pawn at f6 and black knight at h6. Black pawn at a5, black pawn at c5, black pawn at e5 and white pawn at g5. White pawn at a3, white pawn at b3, white knight at c3, white pawn at e3, white knight at f3, white rook at g3 and white pawn at h3. White rook at a2, white pawn at c2, white pawn at d2 and white pawn at f2. White bishop at c1, white queen at d1, white king at e1 and white bishop at f1. Both players have exhausted their castles. Half move number is 3. Full move number is 12. White to move.

the output is g5h6

Input: The current state of the chess board is: Black knight at b8, black bishop at c8, black bishop at f8 and black rook at h8. Black pawn at b7, black queen at c7, black pawn at d7, black king at e7, black pawn at g7 and black pawn at h7. Black rook at c6, black pawn at f6 and black knight at h6. Black pawn at a5, black pawn at c5, black pawn at e5 and white pawn at g5. White pawn at a3, white pawn at b3, white knight at c3, white pawn at e3, white knight at f3, white rook at g3 and white pawn at h3. White rook at a2, white pawn at c2, white pawn at d2 and white pawn at f2. White bishop at c1, white queen at d1, white king at e1 and white bishop at f1. Both players have exhausted their castles. Half move number is 3. Full move number is 12. White to move. ; Output: Move from g5 to h6.

5q1r/3nbk1p/b2p4/rpP1pPp1/pP2KN1P/2P1PP2/2R5/2BQ1R1B b - - 0 25

g5f4

FEN state: 5q1r/3nbk1p/b2p4/rpP1pPp1/pP2KN1P/2P1PP2/2R5/2BQ1R1B b - - 0 25 ; Best moveg5f4

The current state of the chess board is: Black queen at f8 and black rook at h8. Black knight at d7, black bishop at e7, black king at f7 and black pawn at h7. Black bishop at a6 and black pawn at d6. Black rook at a5, black pawn at b5, white pawn at c5, black pawn at e5, white pawn at f5 and black pawn at g5. Black pawn at a4, white pawn at b4, white king at e4, white knight at f4 and white pawn at h4. White pawn at c3, white pawn at e3 and white pawn at f3. White rook at c2. White bishop at c1, white queen at d1, white rook at f1 and white bishop at h1. Both players have exhausted their castles. Half move number is 0. Full move number is 25. Black to move.

the output is g5f4

Input: The current state of the chess board is: Black queen at f8 and black rook at h8. Black knight at d7, black bishop at e7, black king at f7 and black pawn at h7. Black bishop at a6 and black pawn at d6. Black rook at a5, black pawn at b5, white pawn at c5, black pawn at e5, white pawn at f5 and black pawn at g5. Black pawn at a4, white pawn at b4, white king at e4, white knight at f4 and white pawn at h4. White pawn at c3, white pawn at e3 and white pawn at f3. White rook at c2. White bishop at c1, white queen at d1, white rook at f1 and white bishop at h1. Both players have exhausted their castles. Half move number is 0. Full move number is 25. Black to move. ; Output: Move from g5 to f4.

2b1q2r/1r5k/5P1b/1p2pppp/3N1PP1/PP3K1P/3P4/RNB2BR1 w - - 0 26

d4f5

FEN state: 2b1q2r/1r5k/5P1b/1p2pppp/3N1PP1/PP3K1P/3P4/RNB2BR1 w - - 0 26 ; Best moved4f5

The current state of the chess board is: Black bishop at c8, black queen at e8 and black rook at h8. Black rook at b7 and black king at h7. White pawn at f6 and black bishop at h6. Black pawn at b5, black pawn at e5, black pawn at f5, black pawn at g5 and black pawn at h5. White knight at d4, white pawn at f4 and white pawn at g4. White pawn at a3, white pawn at b3, white king at f3 and white pawn at h3. White pawn at d2. White rook at a1, white knight at b1, white bishop at c1, white bishop at f1 and white rook at g1. Both players have exhausted their castles. Half move number is 0. Full move number is 26. White to move.

the output is d4f5

Input: The current state of the chess board is: Black bishop at c8, black queen at e8 and black rook at h8. Black rook at b7 and black king at h7. White pawn at f6 and black bishop at h6. Black pawn at b5, black pawn at e5, black pawn at f5, black pawn at g5 and black pawn at h5. White knight at d4, white pawn at f4 and white pawn at g4. White pawn at a3, white pawn at b3, white king at f3 and white pawn at h3. White pawn at d2. White rook at a1, white knight at b1, white bishop at c1, white bishop at f1 and white rook at g1. Both players have exhausted their castles. Half move number is 0. Full move number is 26. White to move. ; Output: Move from d4 to f5.

rn1q1bn1/ppp1pk2/3p1pr1/3P2pp/5P1P/1N5b/PPPBP1P1/R2QKBNR b Q - 5 9

h3g4

FEN state: rn1q1bn1/ppp1pk2/3p1pr1/3P2pp/5P1P/1N5b/PPPBP1P1/R2QKBNR b Q - 5 9 ; Best moveh3g4

The current state of the chess board is: Black rook at a8, black knight at b8, black queen at d8, black bishop at f8 and black knight at g8. Black pawn at a7, black pawn at b7, black pawn at c7, black pawn at e7 and black king at f7. Black pawn at d6, black pawn at f6 and black rook at g6. White pawn at d5, black pawn at g5 and black pawn at h5. White pawn at f4 and white pawn at h4. White knight at b3 and black bishop at h3. White pawn at a2, white pawn at b2, white pawn at c2, white bishop at d2, white pawn at e2 and white pawn at g2. White rook at a1, white queen at d1, white king at e1, white bishop at f1, white knight at g1 and white rook at h1. White queenside is the only castle move available. Half move number is 5. Full move number is 9. Black to move.

the output is h3g4

Input: The current state of the chess board is: Black rook at a8, black knight at b8, black queen at d8, black bishop at f8 and black knight at g8. Black pawn at a7, black pawn at b7, black pawn at c7, black pawn at e7 and black king at f7. Black pawn at d6, black pawn at f6 and black rook at g6. White pawn at d5, black pawn at g5 and black pawn at h5. White pawn at f4 and white pawn at h4. White knight at b3 and black bishop at h3. White pawn at a2, white pawn at b2, white pawn at c2, white bishop at d2, white pawn at e2 and white pawn at g2. White rook at a1, white queen at d1, white king at e1, white bishop at f1, white knight at g1 and white rook at h1. White queenside is the only castle move available. Half move number is 5. Full move number is 9. Black to move. ; Output: Move from h3 to g4.

rnbq2nr/pppp2kp/3b1p2/4p1p1/1PB5/2P1PP2/P1NP2PP/R1BQK1NR b KQ - 0 8

c7c6

FEN state: rnbq2nr/pppp2kp/3b1p2/4p1p1/1PB5/2P1PP2/P1NP2PP/R1BQK1NR b KQ - 0 8 ; Best movec7c6

The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black queen at d8, black knight at g8 and black rook at h8. Black pawn at a7, black pawn at b7, black pawn at c7, black pawn at d7, black king at g7 and black pawn at h7. Black bishop at d6 and black pawn at f6. Black pawn at e5 and black pawn at g5. White pawn at b4 and white bishop at c4. White pawn at c3, white pawn at e3 and white pawn at f3. White pawn at a2, white knight at c2, white pawn at d2, white pawn at g2 and white pawn at h2. White rook at a1, white bishop at c1, white queen at d1, white king at e1, white knight at g1 and white rook at h1. White kingside and white queenside castles are available. Half move number is 0. Full move number is 8. Black to move.

the output is c7c6

Input: The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black queen at d8, black knight at g8 and black rook at h8. Black pawn at a7, black pawn at b7, black pawn at c7, black pawn at d7, black king at g7 and black pawn at h7. Black bishop at d6 and black pawn at f6. Black pawn at e5 and black pawn at g5. White pawn at b4 and white bishop at c4. White pawn at c3, white pawn at e3 and white pawn at f3. White pawn at a2, white knight at c2, white pawn at d2, white pawn at g2 and white pawn at h2. White rook at a1, white bishop at c1, white queen at d1, white king at e1, white knight at g1 and white rook at h1. White kingside and white queenside castles are available. Half move number is 0. Full move number is 8. Black to move. ; Output: Move from c7 to c6.

r1N2nn1/1b1k1ppr/2p4p/2P1p1b1/P3P3/1P3B2/3PNPq1/1RBQK2R b - - 2 25

g2f3

FEN state: r1N2nn1/1b1k1ppr/2p4p/2P1p1b1/P3P3/1P3B2/3PNPq1/1RBQK2R b - - 2 25 ; Best moveg2f3

The current state of the chess board is: Black rook at a8, white knight at c8, black knight at f8 and black knight at g8. Black bishop at b7, black king at d7, black pawn at f7, black pawn at g7 and black rook at h7. Black pawn at c6 and black pawn at h6. White pawn at c5, black pawn at e5 and black bishop at g5. White pawn at a4 and white pawn at e4. White pawn at b3 and white bishop at f3. White pawn at d2, white knight at e2, white pawn at f2 and black queen at g2. White rook at b1, white bishop at c1, white queen at d1, white king at e1 and white rook at h1. Both players have exhausted their castles. Half move number is 2. Full move number is 25. Black to move.

the output is g2f3

Input: The current state of the chess board is: Black rook at a8, white knight at c8, black knight at f8 and black knight at g8. Black bishop at b7, black king at d7, black pawn at f7, black pawn at g7 and black rook at h7. Black pawn at c6 and black pawn at h6. White pawn at c5, black pawn at e5 and black bishop at g5. White pawn at a4 and white pawn at e4. White pawn at b3 and white bishop at f3. White pawn at d2, white knight at e2, white pawn at f2 and black queen at g2. White rook at b1, white bishop at c1, white queen at d1, white king at e1 and white rook at h1. Both players have exhausted their castles. Half move number is 2. Full move number is 25. Black to move. ; Output: Move from g2 to f3.

1rbqkbnr/p1p1p3/3p2p1/n6p/1P4p1/3P3P/PPQ1PP2/RNB1KBNR w KQk - 1 11

b4a5

FEN state: 1rbqkbnr/p1p1p3/3p2p1/n6p/1P4p1/3P3P/PPQ1PP2/RNB1KBNR w KQk - 1 11 ; Best moveb4a5

The current state of the chess board is: Black rook at b8, black bishop at c8, black queen at d8, black king at e8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at a7, black pawn at c7 and black pawn at e7. Black pawn at d6 and black pawn at g6. Black knight at a5 and black pawn at h5. White pawn at b4 and black pawn at g4. White pawn at d3 and white pawn at h3. White pawn at a2, white pawn at b2, white queen at c2, white pawn at e2 and white pawn at f2. White rook at a1, white knight at b1, white bishop at c1, white king at e1, white bishop at f1, white knight at g1 and white rook at h1. White kingside, white queenside and black kingside castles are available. Half move number is 1. Full move number is 11. White to move.

the output is b4a5

Input: The current state of the chess board is: Black rook at b8, black bishop at c8, black queen at d8, black king at e8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at a7, black pawn at c7 and black pawn at e7. Black pawn at d6 and black pawn at g6. Black knight at a5 and black pawn at h5. White pawn at b4 and black pawn at g4. White pawn at d3 and white pawn at h3. White pawn at a2, white pawn at b2, white queen at c2, white pawn at e2 and white pawn at f2. White rook at a1, white knight at b1, white bishop at c1, white king at e1, white bishop at f1, white knight at g1 and white rook at h1. White kingside, white queenside and black kingside castles are available. Half move number is 1. Full move number is 11. White to move. ; Output: Move from b4 to a5.

1rbqk1nr/pp1pp2p/4n1pb/2p2pN1/1PP5/1Q6/PN1PPPPP/R1B1KB1R w KQk - 6 10

g5e6

FEN state: 1rbqk1nr/pp1pp2p/4n1pb/2p2pN1/1PP5/1Q6/PN1PPPPP/R1B1KB1R w KQk - 6 10 ; Best moveg5e6

The current state of the chess board is: Black rook at b8, black bishop at c8, black queen at d8, black king at e8, black knight at g8 and black rook at h8. Black pawn at a7, black pawn at b7, black pawn at d7, black pawn at e7 and black pawn at h7. Black knight at e6, black pawn at g6 and black bishop at h6. Black pawn at c5, black pawn at f5 and white knight at g5. White pawn at b4 and white pawn at c4. White queen at b3. White pawn at a2, white knight at b2, white pawn at d2, white pawn at e2, white pawn at f2, white pawn at g2 and white pawn at h2. White rook at a1, white bishop at c1, white king at e1, white bishop at f1 and white rook at h1. White kingside, white queenside and black kingside castles are available. Half move number is 6. Full move number is 10. White to move.

the output is g5e6

Input: The current state of the chess board is: Black rook at b8, black bishop at c8, black queen at d8, black king at e8, black knight at g8 and black rook at h8. Black pawn at a7, black pawn at b7, black pawn at d7, black pawn at e7 and black pawn at h7. Black knight at e6, black pawn at g6 and black bishop at h6. Black pawn at c5, black pawn at f5 and white knight at g5. White pawn at b4 and white pawn at c4. White queen at b3. White pawn at a2, white knight at b2, white pawn at d2, white pawn at e2, white pawn at f2, white pawn at g2 and white pawn at h2. White rook at a1, white bishop at c1, white king at e1, white bishop at f1 and white rook at h1. White kingside, white queenside and black kingside castles are available. Half move number is 6. Full move number is 10. White to move. ; Output: Move from g5 to e6.

rn1qkbnr/pb1pp2p/5p2/1pp3p1/1PP3P1/5P1B/P2PP1KP/RNBQ2NR w kq - 2 8

b4c5

FEN state: rn1qkbnr/pb1pp2p/5p2/1pp3p1/1PP3P1/5P1B/P2PP1KP/RNBQ2NR w kq - 2 8 ; Best moveb4c5

The current state of the chess board is: Black rook at a8, black knight at b8, black queen at d8, black king at e8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at a7, black bishop at b7, black pawn at d7, black pawn at e7 and black pawn at h7. Black pawn at f6. Black pawn at b5, black pawn at c5 and black pawn at g5. White pawn at b4, white pawn at c4 and white pawn at g4. White pawn at f3 and white bishop at h3. White pawn at a2, white pawn at d2, white pawn at e2, white king at g2 and white pawn at h2. White rook at a1, white knight at b1, white bishop at c1, white queen at d1, white knight at g1 and white rook at h1. Black kingside and black queenside castles are available. Half move number is 2. Full move number is 8. White to move.

the output is b4c5

Input: The current state of the chess board is: Black rook at a8, black knight at b8, black queen at d8, black king at e8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at a7, black bishop at b7, black pawn at d7, black pawn at e7 and black pawn at h7. Black pawn at f6. Black pawn at b5, black pawn at c5 and black pawn at g5. White pawn at b4, white pawn at c4 and white pawn at g4. White pawn at f3 and white bishop at h3. White pawn at a2, white pawn at d2, white pawn at e2, white king at g2 and white pawn at h2. White rook at a1, white knight at b1, white bishop at c1, white queen at d1, white knight at g1 and white rook at h1. Black kingside and black queenside castles are available. Half move number is 2. Full move number is 8. White to move. ; Output: Move from b4 to c5.

rnb1k3/pppp1ppr/4pn1p/4q3/2B1P3/bPP3PN/PB1P1PQP/RN1K3R w q - 5 11

b1a3

FEN state: rnb1k3/pppp1ppr/4pn1p/4q3/2B1P3/bPP3PN/PB1P1PQP/RN1K3R w q - 5 11 ; Best moveb1a3

The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8 and black king at e8. Black pawn at a7, black pawn at b7, black pawn at c7, black pawn at d7, black pawn at f7, black pawn at g7 and black rook at h7. Black pawn at e6, black knight at f6 and black pawn at h6. Black queen at e5. White bishop at c4 and white pawn at e4. Black bishop at a3, white pawn at b3, white pawn at c3, white pawn at g3 and white knight at h3. White pawn at a2, white bishop at b2, white pawn at d2, white pawn at f2, white queen at g2 and white pawn at h2. White rook at a1, white knight at b1, white king at d1 and white rook at h1. Black queenside is the only castle move available. Half move number is 5. Full move number is 11. White to move.

the output is b1a3

Input: The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8 and black king at e8. Black pawn at a7, black pawn at b7, black pawn at c7, black pawn at d7, black pawn at f7, black pawn at g7 and black rook at h7. Black pawn at e6, black knight at f6 and black pawn at h6. Black queen at e5. White bishop at c4 and white pawn at e4. Black bishop at a3, white pawn at b3, white pawn at c3, white pawn at g3 and white knight at h3. White pawn at a2, white bishop at b2, white pawn at d2, white pawn at f2, white queen at g2 and white pawn at h2. White rook at a1, white knight at b1, white king at d1 and white rook at h1. Black queenside is the only castle move available. Half move number is 5. Full move number is 11. White to move. ; Output: Move from b1 to a3.

rn2k1nr/3p1pb1/bq1pN1p1/1p3p1p/p1P1P2P/P2P4/R4PP1/2BK1B1R b - - 0 18

d7e6

FEN state: rn2k1nr/3p1pb1/bq1pN1p1/1p3p1p/p1P1P2P/P2P4/R4PP1/2BK1B1R b - - 0 18 ; Best moved7e6

The current state of the chess board is: Black rook at a8, black knight at b8, black king at e8, black knight at g8 and black rook at h8. Black pawn at d7, black pawn at f7 and black bishop at g7. Black bishop at a6, black queen at b6, black pawn at d6, white knight at e6 and black pawn at g6. Black pawn at b5, black pawn at f5 and black pawn at h5. Black pawn at a4, white pawn at c4, white pawn at e4 and white pawn at h4. White pawn at a3 and white pawn at d3. White rook at a2, white pawn at f2 and white pawn at g2. White bishop at c1, white king at d1, white bishop at f1 and white rook at h1. Both players have exhausted their castles. Half move number is 0. Full move number is 18. Black to move.

the output is d7e6

Input: The current state of the chess board is: Black rook at a8, black knight at b8, black king at e8, black knight at g8 and black rook at h8. Black pawn at d7, black pawn at f7 and black bishop at g7. Black bishop at a6, black queen at b6, black pawn at d6, white knight at e6 and black pawn at g6. Black pawn at b5, black pawn at f5 and black pawn at h5. Black pawn at a4, white pawn at c4, white pawn at e4 and white pawn at h4. White pawn at a3 and white pawn at d3. White rook at a2, white pawn at f2 and white pawn at g2. White bishop at c1, white king at d1, white bishop at f1 and white rook at h1. Both players have exhausted their castles. Half move number is 0. Full move number is 18. Black to move. ; Output: Move from d7 to e6.

rnbqk1r1/2ppbp1p/1p2p1pn/p5N1/1PB1PPP1/7P/P1PP4/RNBQK2R w KQq - 3 10

b4b5

FEN state: rnbqk1r1/2ppbp1p/1p2p1pn/p5N1/1PB1PPP1/7P/P1PP4/RNBQK2R w KQq - 3 10 ; Best moveb4b5

The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black queen at d8, black king at e8 and black rook at g8. Black pawn at c7, black pawn at d7, black bishop at e7, black pawn at f7 and black pawn at h7. Black pawn at b6, black pawn at e6, black pawn at g6 and black knight at h6. Black pawn at a5 and white knight at g5. White pawn at b4, white bishop at c4, white pawn at e4, white pawn at f4 and white pawn at g4. White pawn at h3. White pawn at a2, white pawn at c2 and white pawn at d2. White rook at a1, white knight at b1, white bishop at c1, white queen at d1, white king at e1 and white rook at h1. White kingside, white queenside and black queenside castles are available. Half move number is 3. Full move number is 10. White to move.

the output is b4b5

Input: The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black queen at d8, black king at e8 and black rook at g8. Black pawn at c7, black pawn at d7, black bishop at e7, black pawn at f7 and black pawn at h7. Black pawn at b6, black pawn at e6, black pawn at g6 and black knight at h6. Black pawn at a5 and white knight at g5. White pawn at b4, white bishop at c4, white pawn at e4, white pawn at f4 and white pawn at g4. White pawn at h3. White pawn at a2, white pawn at c2 and white pawn at d2. White rook at a1, white knight at b1, white bishop at c1, white queen at d1, white king at e1 and white rook at h1. White kingside, white queenside and black queenside castles are available. Half move number is 3. Full move number is 10. White to move. ; Output: Move from b4 to b5.

rn1qkb1r/3b2pp/2pp4/pp2pp1N/1P1P2nP/6P1/P1P1PPB1/RNBQK2R b KQkq - 5 11

a5b4

FEN state: rn1qkb1r/3b2pp/2pp4/pp2pp1N/1P1P2nP/6P1/P1P1PPB1/RNBQK2R b KQkq - 5 11 ; Best movea5b4

The current state of the chess board is: Black rook at a8, black knight at b8, black queen at d8, black king at e8, black bishop at f8 and black rook at h8. Black bishop at d7, black pawn at g7 and black pawn at h7. Black pawn at c6 and black pawn at d6. Black pawn at a5, black pawn at b5, black pawn at e5, black pawn at f5 and white knight at h5. White pawn at b4, white pawn at d4, black knight at g4 and white pawn at h4. White pawn at g3. White pawn at a2, white pawn at c2, white pawn at e2, white pawn at f2 and white bishop at g2. White rook at a1, white knight at b1, white bishop at c1, white queen at d1, white king at e1 and white rook at h1. White kingside, white queenside, black kingside and black queenside castles are available. Half move number is 5. Full move number is 11. Black to move.

the output is a5b4

Input: The current state of the chess board is: Black rook at a8, black knight at b8, black queen at d8, black king at e8, black bishop at f8 and black rook at h8. Black bishop at d7, black pawn at g7 and black pawn at h7. Black pawn at c6 and black pawn at d6. Black pawn at a5, black pawn at b5, black pawn at e5, black pawn at f5 and white knight at h5. White pawn at b4, white pawn at d4, black knight at g4 and white pawn at h4. White pawn at g3. White pawn at a2, white pawn at c2, white pawn at e2, white pawn at f2 and white bishop at g2. White rook at a1, white knight at b1, white bishop at c1, white queen at d1, white king at e1 and white rook at h1. White kingside, white queenside, black kingside and black queenside castles are available. Half move number is 5. Full move number is 11. Black to move. ; Output: Move from a5 to b4.

rnbqk2r/2p1pp1p/pp5b/P5p1/RPPp2P1/3P3N/2nKPP1P/1NB2B1R w kq - 0 11

f1g2

FEN state: rnbqk2r/2p1pp1p/pp5b/P5p1/RPPp2P1/3P3N/2nKPP1P/1NB2B1R w kq - 0 11 ; Best movef1g2

The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black queen at d8, black king at e8 and black rook at h8. Black pawn at c7, black pawn at e7, black pawn at f7 and black pawn at h7. Black pawn at a6, black pawn at b6 and black bishop at h6. White pawn at a5 and black pawn at g5. White rook at a4, white pawn at b4, white pawn at c4, black pawn at d4 and white pawn at g4. White pawn at d3 and white knight at h3. Black knight at c2, white king at d2, white pawn at e2, white pawn at f2 and white pawn at h2. White knight at b1, white bishop at c1, white bishop at f1 and white rook at h1. Black kingside and black queenside castles are available. Half move number is 0. Full move number is 11. White to move.

the output is f1g2

Input: The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black queen at d8, black king at e8 and black rook at h8. Black pawn at c7, black pawn at e7, black pawn at f7 and black pawn at h7. Black pawn at a6, black pawn at b6 and black bishop at h6. White pawn at a5 and black pawn at g5. White rook at a4, white pawn at b4, white pawn at c4, black pawn at d4 and white pawn at g4. White pawn at d3 and white knight at h3. Black knight at c2, white king at d2, white pawn at e2, white pawn at f2 and white pawn at h2. White knight at b1, white bishop at c1, white bishop at f1 and white rook at h1. Black kingside and black queenside castles are available. Half move number is 0. Full move number is 11. White to move. ; Output: Move from f1 to g2.

rnb1kbnr/ppp5/3ppppp/8/1P4PP/P2PP1q1/R1PBQP2/1N2KBNR b kq - 0 12

g3e5

FEN state: rnb1kbnr/ppp5/3ppppp/8/1P4PP/P2PP1q1/R1PBQP2/1N2KBNR b kq - 0 12 ; Best moveg3e5

The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black king at e8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at a7, black pawn at b7 and black pawn at c7. Black pawn at d6, black pawn at e6, black pawn at f6, black pawn at g6 and black pawn at h6. White pawn at b4, white pawn at g4 and white pawn at h4. White pawn at a3, white pawn at d3, white pawn at e3 and black queen at g3. White rook at a2, white pawn at c2, white bishop at d2, white queen at e2 and white pawn at f2. White knight at b1, white king at e1, white bishop at f1, white knight at g1 and white rook at h1. Black kingside and black queenside castles are available. Half move number is 0. Full move number is 12. Black to move.

the output is g3e5

Input: The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black king at e8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at a7, black pawn at b7 and black pawn at c7. Black pawn at d6, black pawn at e6, black pawn at f6, black pawn at g6 and black pawn at h6. White pawn at b4, white pawn at g4 and white pawn at h4. White pawn at a3, white pawn at d3, white pawn at e3 and black queen at g3. White rook at a2, white pawn at c2, white bishop at d2, white queen at e2 and white pawn at f2. White knight at b1, white king at e1, white bishop at f1, white knight at g1 and white rook at h1. Black kingside and black queenside castles are available. Half move number is 0. Full move number is 12. Black to move. ; Output: Move from g3 to e5.

r1bbk2r/p1pp2pp/1p2p2n/5pB1/PnPq2P1/NP3P2/4P2P/R2QKBNR w KQkq - 0 12

d1d4

FEN state: r1bbk2r/p1pp2pp/1p2p2n/5pB1/PnPq2P1/NP3P2/4P2P/R2QKBNR w KQkq - 0 12 ; Best moved1d4

The current state of the chess board is: Black rook at a8, black bishop at c8, black bishop at d8, black king at e8 and black rook at h8. Black pawn at a7, black pawn at c7, black pawn at d7, black pawn at g7 and black pawn at h7. Black pawn at b6, black pawn at e6 and black knight at h6. Black pawn at f5 and white bishop at g5. White pawn at a4, black knight at b4, white pawn at c4, black queen at d4 and white pawn at g4. White knight at a3, white pawn at b3 and white pawn at f3. White pawn at e2 and white pawn at h2. White rook at a1, white queen at d1, white king at e1, white bishop at f1, white knight at g1 and white rook at h1. White kingside, white queenside, black kingside and black queenside castles are available. Half move number is 0. Full move number is 12. White to move.

the output is d1d4

Input: The current state of the chess board is: Black rook at a8, black bishop at c8, black bishop at d8, black king at e8 and black rook at h8. Black pawn at a7, black pawn at c7, black pawn at d7, black pawn at g7 and black pawn at h7. Black pawn at b6, black pawn at e6 and black knight at h6. Black pawn at f5 and white bishop at g5. White pawn at a4, black knight at b4, white pawn at c4, black queen at d4 and white pawn at g4. White knight at a3, white pawn at b3 and white pawn at f3. White pawn at e2 and white pawn at h2. White rook at a1, white queen at d1, white king at e1, white bishop at f1, white knight at g1 and white rook at h1. White kingside, white queenside, black kingside and black queenside castles are available. Half move number is 0. Full move number is 12. White to move. ; Output: Move from d1 to d4.

r1b1qbnr/p1p2k1p/1P2p3/1B1p2p1/PP1Q1p2/4P2N/R4PPP/1NB1K1R1 w - - 0 15

h3g5

FEN state: r1b1qbnr/p1p2k1p/1P2p3/1B1p2p1/PP1Q1p2/4P2N/R4PPP/1NB1K1R1 w - - 0 15 ; Best moveh3g5

The current state of the chess board is: Black rook at a8, black bishop at c8, black queen at e8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at a7, black pawn at c7, black king at f7 and black pawn at h7. White pawn at b6 and black pawn at e6. White bishop at b5, black pawn at d5 and black pawn at g5. White pawn at a4, white pawn at b4, white queen at d4 and black pawn at f4. White pawn at e3 and white knight at h3. White rook at a2, white pawn at f2, white pawn at g2 and white pawn at h2. White knight at b1, white bishop at c1, white king at e1 and white rook at g1. Both players have exhausted their castles. Half move number is 0. Full move number is 15. White to move.

the output is h3g5

Input: The current state of the chess board is: Black rook at a8, black bishop at c8, black queen at e8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at a7, black pawn at c7, black king at f7 and black pawn at h7. White pawn at b6 and black pawn at e6. White bishop at b5, black pawn at d5 and black pawn at g5. White pawn at a4, white pawn at b4, white queen at d4 and black pawn at f4. White pawn at e3 and white knight at h3. White rook at a2, white pawn at f2, white pawn at g2 and white pawn at h2. White knight at b1, white bishop at c1, white king at e1 and white rook at g1. Both players have exhausted their castles. Half move number is 0. Full move number is 15. White to move. ; Output: Move from h3 to g5.

4k2r/p3p2p/3pPppb/1bP3NP/q1B3n1/2P5/1r2QPPR/R1B1K3 w Qk - 1 21

c4b5

FEN state: 4k2r/p3p2p/3pPppb/1bP3NP/q1B3n1/2P5/1r2QPPR/R1B1K3 w Qk - 1 21 ; Best movec4b5

The current state of the chess board is: Black king at e8 and black rook at h8. Black pawn at a7, black pawn at e7 and black pawn at h7. Black pawn at d6, white pawn at e6, black pawn at f6, black pawn at g6 and black bishop at h6. Black bishop at b5, white pawn at c5, white knight at g5 and white pawn at h5. Black queen at a4, white bishop at c4 and black knight at g4. White pawn at c3. Black rook at b2, white queen at e2, white pawn at f2, white pawn at g2 and white rook at h2. White rook at a1, white bishop at c1 and white king at e1. White queenside and black kingside castles are available. Half move number is 1. Full move number is 21. White to move.

the output is c4b5

Input: The current state of the chess board is: Black king at e8 and black rook at h8. Black pawn at a7, black pawn at e7 and black pawn at h7. Black pawn at d6, white pawn at e6, black pawn at f6, black pawn at g6 and black bishop at h6. Black bishop at b5, white pawn at c5, white knight at g5 and white pawn at h5. Black queen at a4, white bishop at c4 and black knight at g4. White pawn at c3. Black rook at b2, white queen at e2, white pawn at f2, white pawn at g2 and white rook at h2. White rook at a1, white bishop at c1 and white king at e1. White queenside and black kingside castles are available. Half move number is 1. Full move number is 21. White to move. ; Output: Move from c4 to b5.

r1b1qbn1/1p3kB1/2ppp3/8/PP3rpp/3B1QP1/2PP3P/RN2K1NR w KQ - 2 21

f3f4

FEN state: r1b1qbn1/1p3kB1/2ppp3/8/PP3rpp/3B1QP1/2PP3P/RN2K1NR w KQ - 2 21 ; Best movef3f4

The current state of the chess board is: Black rook at a8, black bishop at c8, black queen at e8, black bishop at f8 and black knight at g8. Black pawn at b7, black king at f7 and white bishop at g7. Black pawn at c6, black pawn at d6 and black pawn at e6. White pawn at a4, white pawn at b4, black rook at f4, black pawn at g4 and black pawn at h4. White bishop at d3, white queen at f3 and white pawn at g3. White pawn at c2, white pawn at d2 and white pawn at h2. White rook at a1, white knight at b1, white king at e1, white knight at g1 and white rook at h1. White kingside and white queenside castles are available. Half move number is 2. Full move number is 21. White to move.

the output is f3f4

Input: The current state of the chess board is: Black rook at a8, black bishop at c8, black queen at e8, black bishop at f8 and black knight at g8. Black pawn at b7, black king at f7 and white bishop at g7. Black pawn at c6, black pawn at d6 and black pawn at e6. White pawn at a4, white pawn at b4, black rook at f4, black pawn at g4 and black pawn at h4. White bishop at d3, white queen at f3 and white pawn at g3. White pawn at c2, white pawn at d2 and white pawn at h2. White rook at a1, white knight at b1, white king at e1, white knight at g1 and white rook at h1. White kingside and white queenside castles are available. Half move number is 2. Full move number is 21. White to move. ; Output: Move from f3 to f4.

r2qkb1r/1p1bp2p/3p1p1n/p1P1n1p1/P1P5/3PP2B/2R1QP1P/1NB2KNR b k - 0 15

d6c5

FEN state: r2qkb1r/1p1bp2p/3p1p1n/p1P1n1p1/P1P5/3PP2B/2R1QP1P/1NB2KNR b k - 0 15 ; Best moved6c5

The current state of the chess board is: Black rook at a8, black queen at d8, black king at e8, black bishop at f8 and black rook at h8. Black pawn at b7, black bishop at d7, black pawn at e7 and black pawn at h7. Black pawn at d6, black pawn at f6 and black knight at h6. Black pawn at a5, white pawn at c5, black knight at e5 and black pawn at g5. White pawn at a4 and white pawn at c4. White pawn at d3, white pawn at e3 and white bishop at h3. White rook at c2, white queen at e2, white pawn at f2 and white pawn at h2. White knight at b1, white bishop at c1, white king at f1, white knight at g1 and white rook at h1. Black kingside is the only castle move available. Half move number is 0. Full move number is 15. Black to move.

the output is d6c5

Input: The current state of the chess board is: Black rook at a8, black queen at d8, black king at e8, black bishop at f8 and black rook at h8. Black pawn at b7, black bishop at d7, black pawn at e7 and black pawn at h7. Black pawn at d6, black pawn at f6 and black knight at h6. Black pawn at a5, white pawn at c5, black knight at e5 and black pawn at g5. White pawn at a4 and white pawn at c4. White pawn at d3, white pawn at e3 and white bishop at h3. White rook at c2, white queen at e2, white pawn at f2 and white pawn at h2. White knight at b1, white bishop at c1, white king at f1, white knight at g1 and white rook at h1. Black kingside is the only castle move available. Half move number is 0. Full move number is 15. Black to move. ; Output: Move from d6 to c5.

r1br4/p1ppnk2/n5p1/1pQ2p1p/4PP2/b1PP3R/P2K4/5BN1 b - - 4 20

a6c5

FEN state: r1br4/p1ppnk2/n5p1/1pQ2p1p/4PP2/b1PP3R/P2K4/5BN1 b - - 4 20 ; Best movea6c5

The current state of the chess board is: Black rook at a8, black bishop at c8 and black rook at d8. Black pawn at a7, black pawn at c7, black pawn at d7, black knight at e7 and black king at f7. Black knight at a6 and black pawn at g6. Black pawn at b5, white queen at c5, black pawn at f5 and black pawn at h5. White pawn at e4 and white pawn at f4. Black bishop at a3, white pawn at c3, white pawn at d3 and white rook at h3. White pawn at a2 and white king at d2. White bishop at f1 and white knight at g1. Both players have exhausted their castles. Half move number is 4. Full move number is 20. Black to move.

the output is a6c5

Input: The current state of the chess board is: Black rook at a8, black bishop at c8 and black rook at d8. Black pawn at a7, black pawn at c7, black pawn at d7, black knight at e7 and black king at f7. Black knight at a6 and black pawn at g6. Black pawn at b5, white queen at c5, black pawn at f5 and black pawn at h5. White pawn at e4 and white pawn at f4. Black bishop at a3, white pawn at c3, white pawn at d3 and white rook at h3. White pawn at a2 and white king at d2. White bishop at f1 and white knight at g1. Both players have exhausted their castles. Half move number is 4. Full move number is 20. Black to move. ; Output: Move from a6 to c5.

r2q2r1/p1ppbp2/2k3pP/1p1Np2p/3PPB2/1PN4b/2R2P2/1Q2KB1R w - - 1 26

d5e7

FEN state: r2q2r1/p1ppbp2/2k3pP/1p1Np2p/3PPB2/1PN4b/2R2P2/1Q2KB1R w - - 1 26 ; Best moved5e7

The current state of the chess board is: Black rook at a8, black queen at d8 and black rook at g8. Black pawn at a7, black pawn at c7, black pawn at d7, black bishop at e7 and black pawn at f7. Black king at c6, black pawn at g6 and white pawn at h6. Black pawn at b5, white knight at d5, black pawn at e5 and black pawn at h5. White pawn at d4, white pawn at e4 and white bishop at f4. White pawn at b3, white knight at c3 and black bishop at h3. White rook at c2 and white pawn at f2. White queen at b1, white king at e1, white bishop at f1 and white rook at h1. Both players have exhausted their castles. Half move number is 1. Full move number is 26. White to move.

the output is d5e7

Input: The current state of the chess board is: Black rook at a8, black queen at d8 and black rook at g8. Black pawn at a7, black pawn at c7, black pawn at d7, black bishop at e7 and black pawn at f7. Black king at c6, black pawn at g6 and white pawn at h6. Black pawn at b5, white knight at d5, black pawn at e5 and black pawn at h5. White pawn at d4, white pawn at e4 and white bishop at f4. White pawn at b3, white knight at c3 and black bishop at h3. White rook at c2 and white pawn at f2. White queen at b1, white king at e1, white bishop at f1 and white rook at h1. Both players have exhausted their castles. Half move number is 1. Full move number is 26. White to move. ; Output: Move from d5 to e7.

rn1q1b1r/2pk1ppp/1p1p4/pP2P2n/2b2PP1/N7/PBP1P2P/R1Q1KBNR w KQ - 1 10

a3c4

FEN state: rn1q1b1r/2pk1ppp/1p1p4/pP2P2n/2b2PP1/N7/PBP1P2P/R1Q1KBNR w KQ - 1 10 ; Best movea3c4

The current state of the chess board is: Black rook at a8, black knight at b8, black queen at d8, black bishop at f8 and black rook at h8. Black pawn at c7, black king at d7, black pawn at f7, black pawn at g7 and black pawn at h7. Black pawn at b6 and black pawn at d6. Black pawn at a5, white pawn at b5, white pawn at e5 and black knight at h5. Black bishop at c4, white pawn at f4 and white pawn at g4. White knight at a3. White pawn at a2, white bishop at b2, white pawn at c2, white pawn at e2 and white pawn at h2. White rook at a1, white queen at c1, white king at e1, white bishop at f1, white knight at g1 and white rook at h1. White kingside and white queenside castles are available. Half move number is 1. Full move number is 10. White to move.

the output is a3c4

Input: The current state of the chess board is: Black rook at a8, black knight at b8, black queen at d8, black bishop at f8 and black rook at h8. Black pawn at c7, black king at d7, black pawn at f7, black pawn at g7 and black pawn at h7. Black pawn at b6 and black pawn at d6. Black pawn at a5, white pawn at b5, white pawn at e5 and black knight at h5. Black bishop at c4, white pawn at f4 and white pawn at g4. White knight at a3. White pawn at a2, white bishop at b2, white pawn at c2, white pawn at e2 and white pawn at h2. White rook at a1, white queen at c1, white king at e1, white bishop at f1, white knight at g1 and white rook at h1. White kingside and white queenside castles are available. Half move number is 1. Full move number is 10. White to move. ; Output: Move from a3 to c4.

1rbqkb2/ppppppr1/2n3pp/1B5P/2N5/3PPK2/PPPB1PP1/RQ4NR w - - 5 12

f3e2

FEN state: 1rbqkb2/ppppppr1/2n3pp/1B5P/2N5/3PPK2/PPPB1PP1/RQ4NR w - - 5 12 ; Best movef3e2

The current state of the chess board is: Black rook at b8, black bishop at c8, black queen at d8, black king at e8 and black bishop at f8. Black pawn at a7, black pawn at b7, black pawn at c7, black pawn at d7, black pawn at e7, black pawn at f7 and black rook at g7. Black knight at c6, black pawn at g6 and black pawn at h6. White bishop at b5 and white pawn at h5. White knight at c4. White pawn at d3, white pawn at e3 and white king at f3. White pawn at a2, white pawn at b2, white pawn at c2, white bishop at d2, white pawn at f2 and white pawn at g2. White rook at a1, white queen at b1, white knight at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 5. Full move number is 12. White to move.

the output is f3e2

Input: The current state of the chess board is: Black rook at b8, black bishop at c8, black queen at d8, black king at e8 and black bishop at f8. Black pawn at a7, black pawn at b7, black pawn at c7, black pawn at d7, black pawn at e7, black pawn at f7 and black rook at g7. Black knight at c6, black pawn at g6 and black pawn at h6. White bishop at b5 and white pawn at h5. White knight at c4. White pawn at d3, white pawn at e3 and white king at f3. White pawn at a2, white pawn at b2, white pawn at c2, white bishop at d2, white pawn at f2 and white pawn at g2. White rook at a1, white queen at b1, white knight at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 5. Full move number is 12. White to move. ; Output: Move from f3 to e2.

1nbq3r/2p1nkpp/r3pp2/pp1p4/PP4PP/b2PPQ2/2PN1PB1/R1B1K1NR b KQ - 0 11

a3c1

FEN state: 1nbq3r/2p1nkpp/r3pp2/pp1p4/PP4PP/b2PPQ2/2PN1PB1/R1B1K1NR b KQ - 0 11 ; Best movea3c1

The current state of the chess board is: Black knight at b8, black bishop at c8, black queen at d8 and black rook at h8. Black pawn at c7, black knight at e7, black king at f7, black pawn at g7 and black pawn at h7. Black rook at a6, black pawn at e6 and black pawn at f6. Black pawn at a5, black pawn at b5 and black pawn at d5. White pawn at a4, white pawn at b4, white pawn at g4 and white pawn at h4. Black bishop at a3, white pawn at d3, white pawn at e3 and white queen at f3. White pawn at c2, white knight at d2, white pawn at f2 and white bishop at g2. White rook at a1, white bishop at c1, white king at e1, white knight at g1 and white rook at h1. White kingside and white queenside castles are available. Half move number is 0. Full move number is 11. Black to move.

the output is a3c1

Input: The current state of the chess board is: Black knight at b8, black bishop at c8, black queen at d8 and black rook at h8. Black pawn at c7, black knight at e7, black king at f7, black pawn at g7 and black pawn at h7. Black rook at a6, black pawn at e6 and black pawn at f6. Black pawn at a5, black pawn at b5 and black pawn at d5. White pawn at a4, white pawn at b4, white pawn at g4 and white pawn at h4. Black bishop at a3, white pawn at d3, white pawn at e3 and white queen at f3. White pawn at c2, white knight at d2, white pawn at f2 and white bishop at g2. White rook at a1, white bishop at c1, white king at e1, white knight at g1 and white rook at h1. White kingside and white queenside castles are available. Half move number is 0. Full move number is 11. Black to move. ; Output: Move from a3 to c1.

rn3bnr/3kppp1/2pN4/pq3P1p/p1NP1P1R/3K3P/1PPBP3/1RQ2B2 b - - 2 21

e7d6

FEN state: rn3bnr/3kppp1/2pN4/pq3P1p/p1NP1P1R/3K3P/1PPBP3/1RQ2B2 b - - 2 21 ; Best movee7d6

The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at f8, black knight at g8 and black rook at h8. Black king at d7, black pawn at e7, black pawn at f7 and black pawn at g7. Black pawn at c6 and white knight at d6. Black pawn at a5, black queen at b5, white pawn at f5 and black pawn at h5. Black pawn at a4, white knight at c4, white pawn at d4, white pawn at f4 and white rook at h4. White king at d3 and white pawn at h3. White pawn at b2, white pawn at c2, white bishop at d2 and white pawn at e2. White rook at b1, white queen at c1 and white bishop at f1. Both players have exhausted their castles. Half move number is 2. Full move number is 21. Black to move.

the output is e7d6

Input: The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at f8, black knight at g8 and black rook at h8. Black king at d7, black pawn at e7, black pawn at f7 and black pawn at g7. Black pawn at c6 and white knight at d6. Black pawn at a5, black queen at b5, white pawn at f5 and black pawn at h5. Black pawn at a4, white knight at c4, white pawn at d4, white pawn at f4 and white rook at h4. White king at d3 and white pawn at h3. White pawn at b2, white pawn at c2, white bishop at d2 and white pawn at e2. White rook at b1, white queen at c1 and white bishop at f1. Both players have exhausted their castles. Half move number is 2. Full move number is 21. Black to move. ; Output: Move from e7 to d6.

rnbq2nr/1ppk3p/6p1/2bppp2/Np5P/B2P3N/P1P1PPP1/R1Q1KB1R b KQ - 2 10

a8a4

FEN state: rnbq2nr/1ppk3p/6p1/2bppp2/Np5P/B2P3N/P1P1PPP1/R1Q1KB1R b KQ - 2 10 ; Best movea8a4

The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black queen at d8, black knight at g8 and black rook at h8. Black pawn at b7, black pawn at c7, black king at d7 and black pawn at h7. Black pawn at g6. Black bishop at c5, black pawn at d5, black pawn at e5 and black pawn at f5. White knight at a4, black pawn at b4 and white pawn at h4. White bishop at a3, white pawn at d3 and white knight at h3. White pawn at a2, white pawn at c2, white pawn at e2, white pawn at f2 and white pawn at g2. White rook at a1, white queen at c1, white king at e1, white bishop at f1 and white rook at h1. White kingside and white queenside castles are available. Half move number is 2. Full move number is 10. Black to move.

the output is a8a4

Input: The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black queen at d8, black knight at g8 and black rook at h8. Black pawn at b7, black pawn at c7, black king at d7 and black pawn at h7. Black pawn at g6. Black bishop at c5, black pawn at d5, black pawn at e5 and black pawn at f5. White knight at a4, black pawn at b4 and white pawn at h4. White bishop at a3, white pawn at d3 and white knight at h3. White pawn at a2, white pawn at c2, white pawn at e2, white pawn at f2 and white pawn at g2. White rook at a1, white queen at c1, white king at e1, white bishop at f1 and white rook at h1. White kingside and white queenside castles are available. Half move number is 2. Full move number is 10. Black to move. ; Output: Move from a8 to a4.

rnb1k1nr/pppp2pp/q7/4p3/N4p2/b2PP3/1PPQ1PPP/R1B1KBNR b KQkq - 1 8

a3e7

FEN state: rnb1k1nr/pppp2pp/q7/4p3/N4p2/b2PP3/1PPQ1PPP/R1B1KBNR b KQkq - 1 8 ; Best movea3e7

The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black king at e8, black knight at g8 and black rook at h8. Black pawn at a7, black pawn at b7, black pawn at c7, black pawn at d7, black pawn at g7 and black pawn at h7. Black queen at a6. Black pawn at e5. White knight at a4 and black pawn at f4. Black bishop at a3, white pawn at d3 and white pawn at e3. White pawn at b2, white pawn at c2, white queen at d2, white pawn at f2, white pawn at g2 and white pawn at h2. White rook at a1, white bishop at c1, white king at e1, white bishop at f1, white knight at g1 and white rook at h1. White kingside, white queenside, black kingside and black queenside castles are available. Half move number is 1. Full move number is 8. Black to move.

the output is a3e7

Input: The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black king at e8, black knight at g8 and black rook at h8. Black pawn at a7, black pawn at b7, black pawn at c7, black pawn at d7, black pawn at g7 and black pawn at h7. Black queen at a6. Black pawn at e5. White knight at a4 and black pawn at f4. Black bishop at a3, white pawn at d3 and white pawn at e3. White pawn at b2, white pawn at c2, white queen at d2, white pawn at f2, white pawn at g2 and white pawn at h2. White rook at a1, white bishop at c1, white king at e1, white bishop at f1, white knight at g1 and white rook at h1. White kingside, white queenside, black kingside and black queenside castles are available. Half move number is 1. Full move number is 8. Black to move. ; Output: Move from a3 to e7.

1nb1kbn1/2pp4/2r2Ppr/1Np1p2p/1p2PQ1P/7K/BB1P1P2/RN3R2 b - - 4 25

d7d5

FEN state: 1nb1kbn1/2pp4/2r2Ppr/1Np1p2p/1p2PQ1P/7K/BB1P1P2/RN3R2 b - - 4 25 ; Best moved7d5

The current state of the chess board is: Black knight at b8, black bishop at c8, black king at e8, black bishop at f8 and black knight at g8. Black pawn at c7 and black pawn at d7. Black rook at c6, white pawn at f6, black pawn at g6 and black rook at h6. White knight at b5, black pawn at c5, black pawn at e5 and black pawn at h5. Black pawn at b4, white pawn at e4, white queen at f4 and white pawn at h4. White king at h3. White bishop at a2, white bishop at b2, white pawn at d2 and white pawn at f2. White rook at a1, white knight at b1 and white rook at f1. Both players have exhausted their castles. Half move number is 4. Full move number is 25. Black to move.

the output is d7d5

Input: The current state of the chess board is: Black knight at b8, black bishop at c8, black king at e8, black bishop at f8 and black knight at g8. Black pawn at c7 and black pawn at d7. Black rook at c6, white pawn at f6, black pawn at g6 and black rook at h6. White knight at b5, black pawn at c5, black pawn at e5 and black pawn at h5. Black pawn at b4, white pawn at e4, white queen at f4 and white pawn at h4. White king at h3. White bishop at a2, white bishop at b2, white pawn at d2 and white pawn at f2. White rook at a1, white knight at b1 and white rook at f1. Both players have exhausted their castles. Half move number is 4. Full move number is 25. Black to move. ; Output: Move from d7 to d5.

rn3b1r/pp2pkpp/1qpp4/2n2p2/BP3P2/P1PPP3/RB3NPP/1N1QK2R w K - 5 13

b4c5

FEN state: rn3b1r/pp2pkpp/1qpp4/2n2p2/BP3P2/P1PPP3/RB3NPP/1N1QK2R w K - 5 13 ; Best moveb4c5

The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at f8 and black rook at h8. Black pawn at a7, black pawn at b7, black pawn at e7, black king at f7, black pawn at g7 and black pawn at h7. Black queen at b6, black pawn at c6 and black pawn at d6. Black knight at c5 and black pawn at f5. White bishop at a4, white pawn at b4 and white pawn at f4. White pawn at a3, white pawn at c3, white pawn at d3 and white pawn at e3. White rook at a2, white bishop at b2, white knight at f2, white pawn at g2 and white pawn at h2. White knight at b1, white queen at d1, white king at e1 and white rook at h1. White kingside is the only castle move available. Half move number is 5. Full move number is 13. White to move.

the output is b4c5

Input: The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at f8 and black rook at h8. Black pawn at a7, black pawn at b7, black pawn at e7, black king at f7, black pawn at g7 and black pawn at h7. Black queen at b6, black pawn at c6 and black pawn at d6. Black knight at c5 and black pawn at f5. White bishop at a4, white pawn at b4 and white pawn at f4. White pawn at a3, white pawn at c3, white pawn at d3 and white pawn at e3. White rook at a2, white bishop at b2, white knight at f2, white pawn at g2 and white pawn at h2. White knight at b1, white queen at d1, white king at e1 and white rook at h1. White kingside is the only castle move available. Half move number is 5. Full move number is 13. White to move. ; Output: Move from b4 to c5.

rbq1k1n1/pp6/5p1R/1p2p1p1/6b1/P1P1PN2/3K1Pp1/R1B1Q1N1 b q - 2 21

g8h6

FEN state: rbq1k1n1/pp6/5p1R/1p2p1p1/6b1/P1P1PN2/3K1Pp1/R1B1Q1N1 b q - 2 21 ; Best moveg8h6

The current state of the chess board is: Black rook at a8, black bishop at b8, black queen at c8, black king at e8 and black knight at g8. Black pawn at a7 and black pawn at b7. Black pawn at f6 and white rook at h6. Black pawn at b5, black pawn at e5 and black pawn at g5. Black bishop at g4. White pawn at a3, white pawn at c3, white pawn at e3 and white knight at f3. White king at d2, white pawn at f2 and black pawn at g2. White rook at a1, white bishop at c1, white queen at e1 and white knight at g1. Black queenside is the only castle move available. Half move number is 2. Full move number is 21. Black to move.

the output is g8h6

Input: The current state of the chess board is: Black rook at a8, black bishop at b8, black queen at c8, black king at e8 and black knight at g8. Black pawn at a7 and black pawn at b7. Black pawn at f6 and white rook at h6. Black pawn at b5, black pawn at e5 and black pawn at g5. Black bishop at g4. White pawn at a3, white pawn at c3, white pawn at e3 and white knight at f3. White king at d2, white pawn at f2 and black pawn at g2. White rook at a1, white bishop at c1, white queen at e1 and white knight at g1. Black queenside is the only castle move available. Half move number is 2. Full move number is 21. Black to move. ; Output: Move from g8 to h6.

1q2kbn1/3n1p1r/1p2p1p1/r1pp3p/p2P1P2/2P1P1PN/PP1KB3/RNBQ3R w - - 0 15

d2e1

FEN state: 1q2kbn1/3n1p1r/1p2p1p1/r1pp3p/p2P1P2/2P1P1PN/PP1KB3/RNBQ3R w - - 0 15 ; Best moved2e1

The current state of the chess board is: Black queen at b8, black king at e8, black bishop at f8 and black knight at g8. Black knight at d7, black pawn at f7 and black rook at h7. Black pawn at b6, black pawn at e6 and black pawn at g6. Black rook at a5, black pawn at c5, black pawn at d5 and black pawn at h5. Black pawn at a4, white pawn at d4 and white pawn at f4. White pawn at c3, white pawn at e3, white pawn at g3 and white knight at h3. White pawn at a2, white pawn at b2, white king at d2 and white bishop at e2. White rook at a1, white knight at b1, white bishop at c1, white queen at d1 and white rook at h1. Both players have exhausted their castles. Half move number is 0. Full move number is 15. White to move.

the output is d2e1

Input: The current state of the chess board is: Black queen at b8, black king at e8, black bishop at f8 and black knight at g8. Black knight at d7, black pawn at f7 and black rook at h7. Black pawn at b6, black pawn at e6 and black pawn at g6. Black rook at a5, black pawn at c5, black pawn at d5 and black pawn at h5. Black pawn at a4, white pawn at d4 and white pawn at f4. White pawn at c3, white pawn at e3, white pawn at g3 and white knight at h3. White pawn at a2, white pawn at b2, white king at d2 and white bishop at e2. White rook at a1, white knight at b1, white bishop at c1, white queen at d1 and white rook at h1. Both players have exhausted their castles. Half move number is 0. Full move number is 15. White to move. ; Output: Move from d2 to e1.

2br2R1/pn1k3p/3p1p2/4pnp1/1pP5/N2P2R1/1P1BQP2/R3KBN1 b Q - 0 23

b4a3

FEN state: 2br2R1/pn1k3p/3p1p2/4pnp1/1pP5/N2P2R1/1P1BQP2/R3KBN1 b Q - 0 23 ; Best moveb4a3

The current state of the chess board is: Black bishop at c8, black rook at d8 and white rook at g8. Black pawn at a7, black knight at b7, black king at d7 and black pawn at h7. Black pawn at d6 and black pawn at f6. Black pawn at e5, black knight at f5 and black pawn at g5. Black pawn at b4 and white pawn at c4. White knight at a3, white pawn at d3 and white rook at g3. White pawn at b2, white bishop at d2, white queen at e2 and white pawn at f2. White rook at a1, white king at e1, white bishop at f1 and white knight at g1. White queenside is the only castle move available. Half move number is 0. Full move number is 23. Black to move.

the output is b4a3

Input: The current state of the chess board is: Black bishop at c8, black rook at d8 and white rook at g8. Black pawn at a7, black knight at b7, black king at d7 and black pawn at h7. Black pawn at d6 and black pawn at f6. Black pawn at e5, black knight at f5 and black pawn at g5. Black pawn at b4 and white pawn at c4. White knight at a3, white pawn at d3 and white rook at g3. White pawn at b2, white bishop at d2, white queen at e2 and white pawn at f2. White rook at a1, white king at e1, white bishop at f1 and white knight at g1. White queenside is the only castle move available. Half move number is 0. Full move number is 23. Black to move. ; Output: Move from b4 to a3.

r2q2nr/p1k1b1Pp/1p2p3/2p5/P2p1pP1/1P1PB2N/2n1PP1R/RNQ3K1 w - - 3 26

e3f4

FEN state: r2q2nr/p1k1b1Pp/1p2p3/2p5/P2p1pP1/1P1PB2N/2n1PP1R/RNQ3K1 w - - 3 26 ; Best movee3f4

The current state of the chess board is: Black rook at a8, black queen at d8, black knight at g8 and black rook at h8. Black pawn at a7, black king at c7, black bishop at e7, white pawn at g7 and black pawn at h7. Black pawn at b6 and black pawn at e6. Black pawn at c5. White pawn at a4, black pawn at d4, black pawn at f4 and white pawn at g4. White pawn at b3, white pawn at d3, white bishop at e3 and white knight at h3. Black knight at c2, white pawn at e2, white pawn at f2 and white rook at h2. White rook at a1, white knight at b1, white queen at c1 and white king at g1. Both players have exhausted their castles. Half move number is 3. Full move number is 26. White to move.

the output is e3f4

Input: The current state of the chess board is: Black rook at a8, black queen at d8, black knight at g8 and black rook at h8. Black pawn at a7, black king at c7, black bishop at e7, white pawn at g7 and black pawn at h7. Black pawn at b6 and black pawn at e6. Black pawn at c5. White pawn at a4, black pawn at d4, black pawn at f4 and white pawn at g4. White pawn at b3, white pawn at d3, white bishop at e3 and white knight at h3. Black knight at c2, white pawn at e2, white pawn at f2 and white rook at h2. White rook at a1, white knight at b1, white queen at c1 and white king at g1. Both players have exhausted their castles. Half move number is 3. Full move number is 26. White to move. ; Output: Move from e3 to f4.