1nB1kbnr/rq2p3/1ppp2pp/p4p2/3P4/1QP2KP1/PP2PP1P/RNB3NR w k - 0 13
FEN state: 1nB1kbnr/rq2p3/1ppp2pp/p4p2/3P4/1QP2KP1/PP2PP1P/RNB3NR w k - 0 13 ; Best move: c8b7
The current state of the chess board is: Black knight at b8, white bishop at c8, black king at e8, black bishop at f8, black knight at g8 and black rook at h8. Black rook at a7, black queen at b7 and black pawn at e7. Black pawn at b6, black pawn at c6, black pawn at d6, black pawn at g6 and black pawn at h6. Black pawn at a5 and black pawn at f5. White pawn at d4. White queen at b3, white pawn at c3, white king at f3 and white pawn at g3. White pawn at a2, white pawn at b2, white pawn at e2, white pawn at f2 and white pawn at h2. White rook at a1, white knight at b1, white bishop at c1, 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 13. White to move.