r1bqk1n1/p2pp1br/1pp2p1p/2B3pP/2Pn1PP1/1P5R/P2PP3/RN1QKBN1 w q - 0 12
FEN state: r1bqk1n1/p2pp1br/1pp2p1p/2B3pP/2Pn1PP1/1P5R/P2PP3/RN1QKBN1 w q - 0 12 ; Best move: c5d4
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 knight at g8. Black pawn at a7, black pawn at d7, black pawn at e7, black bishop at g7 and black rook at h7. Black pawn at b6, black pawn at c6, black pawn at f6 and black pawn at h6. White bishop at c5, black pawn at g5 and white pawn at h5. White pawn at c4, black knight at d4, white pawn at f4 and white pawn at g4. White pawn at b3 and white rook at h3. White pawn at a2, white pawn at d2 and white pawn at e2. White rook at a1, white knight at b1, white queen at d1, white king at e1, white bishop at f1 and white knight at g1. Black queenside is the only castle move available. Half move number is 0. Full move number is 12. White to move.