1rb1k1n1/Npq2p2/n7/2ppp1pp/PbP1P1P1/R6P/1PQP2KR/2B3N1 b - - 4 25
FEN state: 1rb1k1n1/Npq2p2/n7/2ppp1pp/PbP1P1P1/R6P/1PQP2KR/2B3N1 b - - 4 25 ; Best move: b4a3
The current state of the chess board is: Black rook at b8, black bishop at c8, black king at e8 and black knight at g8. White knight at a7, black pawn at b7, black queen at c7 and black pawn at f7. Black knight at a6. Black pawn at c5, black pawn at d5, black pawn at e5, black pawn at g5 and black pawn at h5. White pawn at a4, black bishop at b4, white pawn at c4, white pawn at e4 and white pawn at g4. White rook at a3 and white pawn at h3. White pawn at b2, white queen at c2, white pawn at d2, white king at g2 and white rook at h2. White bishop at c1 and white knight at g1. Both players have exhausted their castles. Half move number is 4. Full move number is 25. Black to move.