2b1k1n1/1p1npp1r/rqp5/p2pb1Pp/P2P1NP1/1PB1PP2/2P3BR/1N1Q1K2 b - - 0 23
FEN state: 2b1k1n1/1p1npp1r/rqp5/p2pb1Pp/P2P1NP1/1PB1PP2/2P3BR/1N1Q1K2 b - - 0 23 ; Best move: e5f4
The current state of the chess board is: Black bishop at c8, black king at e8 and black knight at g8. Black pawn at b7, black knight at d7, black pawn at e7, black pawn at f7 and black rook at h7. Black rook at a6, black queen at b6 and black pawn at c6. Black pawn at a5, black pawn at d5, black bishop at e5, white pawn at g5 and black pawn at h5. White pawn at a4, white pawn at d4, white knight at f4 and white pawn at g4. White pawn at b3, white bishop at c3, white pawn at e3 and white pawn at f3. White pawn at c2, white bishop at g2 and white rook at h2. White knight at b1, white queen at d1 and white king at f1. Both players have exhausted their castles. Half move number is 0. Full move number is 23. Black to move.