rnbqk2r/2ppbppp/pp6/4pn2/2P2P2/P1Q4N/1P1PP1BP/RNB1K2R b KQkq - 0 10
FEN state: rnbqk2r/2ppbppp/pp6/4pn2/2P2P2/P1Q4N/1P1PP1BP/RNB1K2R b KQkq - 0 10 ; Best move: a8a7
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 d7, black bishop at e7, black pawn at f7, black pawn at g7 and black pawn at h7. Black pawn at a6 and black pawn at b6. Black pawn at e5 and black knight at f5. White pawn at c4 and white pawn at f4. White pawn at a3, white queen at c3 and white knight at h3. White pawn at b2, white pawn at d2, white pawn at e2, white bishop at g2 and white pawn at h2. White rook at a1, white knight at b1, white bishop at c1, 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 0. Full move number is 10. Black to move.