1n1k1bnr/1rqp1ppp/B7/2p1pP2/1Pb1P2P/P1PP1NP1/6Q1/RNB1K2R w KQ - 1 18
FEN state: 1n1k1bnr/1rqp1ppp/B7/2p1pP2/1Pb1P2P/P1PP1NP1/6Q1/RNB1K2R w KQ - 1 18 ; Best move: a6c4
The current state of the chess board is: Black knight at b8, black king at d8, black bishop at f8, black knight at g8 and black rook at h8. Black rook at b7, black queen at c7, black pawn at d7, black pawn at f7, black pawn at g7 and black pawn at h7. White bishop at a6. Black pawn at c5, black pawn at e5 and white pawn at f5. White pawn at b4, black bishop at c4, white pawn at e4 and white pawn at h4. White pawn at a3, white pawn at c3, white pawn at d3, white knight at f3 and white pawn at g3. White queen at g2. White rook at a1, white knight at b1, white bishop at c1, white king at e1 and white rook at h1. White kingside and white queenside castles are available. Half move number is 1. Full move number is 18. White to move.