r1b3nr/2ppnkpp/1B6/Q3pp2/2P1P1P1/3P1N2/PP1N1P2/R3KB1q b Q - 0 12
FEN state: r1b3nr/2ppnkpp/1B6/Q3pp2/2P1P1P1/3P1N2/PP1N1P2/R3KB1q b Q - 0 12 ; Best move: a8a5
The current state of the chess board is: Black rook at a8, black bishop at c8, black knight at g8 and black rook at h8. Black pawn at c7, black pawn at d7, black knight at e7, black king at f7, black pawn at g7 and black pawn at h7. White bishop at b6. White queen at a5, black pawn at e5 and black pawn at f5. White pawn at c4, white pawn at e4 and white pawn at g4. White pawn at d3 and white knight at f3. White pawn at a2, white pawn at b2, white knight at d2 and white pawn at f2. White rook at a1, white king at e1, white bishop at f1 and black queen at h1. White queenside is the only castle move available. Half move number is 0. Full move number is 12. Black to move.