1rb2bnr/p3k1pp/np1pp3/P1p3q1/2PNp3/Q2PP2B/1P3P1P/R1B2K1R b - - 2 23
FEN state: 1rb2bnr/p3k1pp/np1pp3/P1p3q1/2PNp3/Q2PP2B/1P3P1P/R1B2K1R b - - 2 23 ; Best move: c5d4
The current state of the chess board is: Black rook at b8, black bishop at c8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at a7, black king at e7, black pawn at g7 and black pawn at h7. Black knight at a6, black pawn at b6, black pawn at d6 and black pawn at e6. White pawn at a5, black pawn at c5 and black queen at g5. White pawn at c4, white knight at d4 and black pawn at e4. White queen at a3, white pawn at d3, white pawn at e3 and white bishop at h3. White pawn at b2, white pawn at f2 and white pawn at h2. White rook at a1, white bishop at c1, white king at f1 and white rook at h1. Both players have exhausted their castles. Half move number is 2. Full move number is 23. Black to move.