r1bq2nr/1pp1p2p/p1np1kpb/1B3p2/P4P2/1P2P1PP/2PP3R/RNBQK1N1 b Q - 2 9
FEN state: r1bq2nr/1pp1p2p/p1np1kpb/1B3p2/P4P2/1P2P1PP/2PP3R/RNBQK1N1 b Q - 2 9 ; Best move: a6b5
The current state of the chess board is: Black rook at a8, black bishop at c8, black queen at d8, black knight at g8 and black rook at h8. Black pawn at b7, black pawn at c7, black pawn at e7 and black pawn at h7. Black pawn at a6, black knight at c6, black pawn at d6, black king at f6, black pawn at g6 and black bishop at h6. White bishop at b5 and black pawn at f5. White pawn at a4 and white pawn at f4. White pawn at b3, white pawn at e3, white pawn at g3 and white pawn at h3. White pawn at c2, white pawn at d2 and white rook at h2. White rook at a1, white knight at b1, white bishop at c1, white queen at d1, white king at e1 and white knight at g1. White queenside is the only castle move available. Half move number is 2. Full move number is 9. Black to move.