r1b1kb1r/pp2q2p/B5pn/2pppp2/P6P/1PP1P2N/1Q1P1PP1/RNBK3R b kq - 1 10
FEN state: r1b1kb1r/pp2q2p/B5pn/2pppp2/P6P/1PP1P2N/1Q1P1PP1/RNBK3R b kq - 1 10 ; Best move: b7a6
The current state of the chess board is: Black rook at a8, black bishop at c8, black king at e8, black bishop at f8 and black rook at h8. Black pawn at a7, black pawn at b7, black queen at e7 and black pawn at h7. White bishop at a6, black pawn at g6 and black knight at h6. Black pawn at c5, black pawn at d5, black pawn at e5 and black pawn at f5. White pawn at a4 and white pawn at h4. White pawn at b3, white pawn at c3, white pawn at e3 and white knight at h3. White queen at b2, white pawn at d2, white pawn at f2 and white pawn at g2. White rook at a1, white knight at b1, white bishop at c1, white king at d1 and white rook at h1. Black kingside and black queenside castles are available. Half move number is 1. Full move number is 10. Black to move.