r1k4r/p4n2/q1P3p1/B3pP2/2p2PPp/1B5N/PP5P/R2K3R b - - 1 23
FEN state: r1k4r/p4n2/q1P3p1/B3pP2/2p2PPp/1B5N/PP5P/R2K3R b - - 1 23 ; Best move: a6a5
The current state of the chess board is: Black rook at a8, black king at c8 and black rook at h8. Black pawn at a7 and black knight at f7. Black queen at a6, white pawn at c6 and black pawn at g6. White bishop at a5, black pawn at e5 and white pawn at f5. Black pawn at c4, white pawn at f4, white pawn at g4 and black pawn at h4. White bishop at b3 and white knight at h3. White pawn at a2, white pawn at b2 and white pawn at h2. White rook at a1, white king at d1 and white rook at h1. Both players have exhausted their castles. Half move number is 1. Full move number is 23. Black to move.