r4k1r/P4pb1/1p1p1np1/2p1p2p/4P2P/NQP2PP1/PB1PBN2/R3K1R1 b - - 0 25
FEN state: r4k1r/P4pb1/1p1p1np1/2p1p2p/4P2P/NQP2PP1/PB1PBN2/R3K1R1 b - - 0 25 ; Best move: a8a7
The current state of the chess board is: Black rook at a8, black king at f8 and black rook at h8. White pawn at a7, black pawn at f7 and black bishop at g7. Black pawn at b6, black pawn at d6, black knight at f6 and black pawn at g6. Black pawn at c5, black pawn at e5 and black pawn at h5. White pawn at e4 and white pawn at h4. White knight at a3, white queen at b3, white pawn at c3, white pawn at f3 and white pawn at g3. White pawn at a2, white bishop at b2, white pawn at d2, white bishop at e2 and white knight at f2. White rook at a1, white king at e1 and white rook at g1. Both players have exhausted their castles. Half move number is 0. Full move number is 25. Black to move.