rn3r2/2k3b1/1pp1qpp1/p2ppb1p/PPBPP2P/2K2PP1/RBP1QnR1/1N4N1 b - - 0 25
FEN state: rn3r2/2k3b1/1pp1qpp1/p2ppb1p/PPBPP2P/2K2PP1/RBP1QnR1/1N4N1 b - - 0 25 ; Best move: a5b4
The current state of the chess board is: Black rook at a8, black knight at b8 and black rook at f8. Black king at c7 and black bishop at g7. Black pawn at b6, black pawn at c6, black queen at e6, black pawn at f6 and black pawn at g6. Black pawn at a5, black pawn at d5, black pawn at e5, black bishop at f5 and black pawn at h5. White pawn at a4, white pawn at b4, white bishop at c4, white pawn at d4, white pawn at e4 and white pawn at h4. White king at c3, white pawn at f3 and white pawn at g3. White rook at a2, white bishop at b2, white pawn at c2, white queen at e2, black knight at f2 and white rook at g2. White knight at b1 and white knight at g1. Both players have exhausted their castles. Half move number is 0. Full move number is 25. Black to move.