rn1q1br1/p1p1n3/B2k1pp1/7p/2PB3P/1P1P3N/1R3P2/4K1NR b K - 0 25
FEN state: rn1q1br1/p1p1n3/B2k1pp1/7p/2PB3P/1P1P3N/1R3P2/4K1NR b K - 0 25 ; Best move: b8a6
The current state of the chess board is: Black rook at a8, black knight at b8, black queen at d8, black bishop at f8 and black rook at g8. Black pawn at a7, black pawn at c7 and black knight at e7. White bishop at a6, black king at d6, black pawn at f6 and black pawn at g6. Black pawn at h5. White pawn at c4, white bishop at d4 and white pawn at h4. White pawn at b3, white pawn at d3 and white knight at h3. White rook at b2 and white pawn at f2. White king at e1, white knight at g1 and white rook at h1. White kingside is the only castle move available. Half move number is 0. Full move number is 25. Black to move.