1r1k1brn/np1bp1p1/8/1BPp1p2/1P3PNp/PR2P3/N1P3PP/2B1QK1R b - - 4 23
FEN state: 1r1k1brn/np1bp1p1/8/1BPp1p2/1P3PNp/PR2P3/N1P3PP/2B1QK1R b - - 4 23 ; Best move: d7b5
The current state of the chess board is: Black rook at b8, black king at d8, black bishop at f8, black rook at g8 and black knight at h8. Black knight at a7, black pawn at b7, black bishop at d7, black pawn at e7 and black pawn at g7. White bishop at b5, white pawn at c5, black pawn at d5 and black pawn at f5. White pawn at b4, white pawn at f4, white knight at g4 and black pawn at h4. White pawn at a3, white rook at b3 and white pawn at e3. White knight at a2, white pawn at c2, white pawn at g2 and white pawn at h2. White bishop at c1, white queen at e1, white king at f1 and white rook at h1. Both players have exhausted their castles. Half move number is 4. Full move number is 23. Black to move.