r1bq3r/p1p1bkp1/R2ppn1p/1p3p2/1P2P3/5N1P/1BPP1PP1/1N1QKB1R b K - 5 12
FEN state: r1bq3r/p1p1bkp1/R2ppn1p/1p3p2/1P2P3/5N1P/1BPP1PP1/1N1QKB1R b K - 5 12 ; Best move: c8a6
The current state of the chess board is: Black rook at a8, black bishop at c8, black queen at d8 and black rook at h8. Black pawn at a7, black pawn at c7, black bishop at e7, black king at f7 and black pawn at g7. White rook at a6, black pawn at d6, black pawn at e6, black knight at f6 and black pawn at h6. Black pawn at b5 and black pawn at f5. White pawn at b4 and white pawn at e4. White knight at f3 and white pawn at h3. White bishop at b2, white pawn at c2, white pawn at d2, white pawn at f2 and white pawn at g2. White knight at b1, white queen at d1, white king at e1, white bishop at f1 and white rook at h1. White kingside is the only castle move available. Half move number is 5. Full move number is 12. Black to move.