1nr1kb1r/3np1p1/bq6/2P1pp2/p1pB1PpP/P2P4/2P5/RN1QK1NR w Qk - 0 18
FEN state: 1nr1kb1r/3np1p1/bq6/2P1pp2/p1pB1PpP/P2P4/2P5/RN1QK1NR w Qk - 0 18 ; Best move: c5b6
The current state of the chess board is: Black knight at b8, black rook at c8, black king at e8, black bishop at f8 and black rook at h8. Black knight at d7, black pawn at e7 and black pawn at g7. Black bishop at a6 and black queen at b6. White pawn at c5, black pawn at e5 and black pawn at f5. Black pawn at a4, black pawn at c4, white bishop at d4, white pawn at f4, black pawn at g4 and white pawn at h4. White pawn at a3 and white pawn at d3. White pawn at c2. 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 queenside and black kingside castles are available. Half move number is 0. Full move number is 18. White to move.