1rbk3r/pppp1p2/7p/P2PB1pq/1RPbP1P1/nP6/3K2PP/1Q3BNR b - - 1 25
FEN state: 1rbk3r/pppp1p2/7p/P2PB1pq/1RPbP1P1/nP6/3K2PP/1Q3BNR b - - 1 25 ; Best move: a3b1
The current state of the chess board is: Black rook at b8, black bishop at c8, black king at d8 and black rook at h8. Black pawn at a7, black pawn at b7, black pawn at c7, black pawn at d7 and black pawn at f7. Black pawn at h6. White pawn at a5, white pawn at d5, white bishop at e5, black pawn at g5 and black queen at h5. White rook at b4, white pawn at c4, black bishop at d4, white pawn at e4 and white pawn at g4. Black knight at a3 and white pawn at b3. White king at d2, white pawn at g2 and white pawn at h2. White queen at b1, white bishop at f1, white knight at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 1. Full move number is 25. Black to move.