r1bqk2r/pB4p1/1p1bp3/2p1NpPp/PnPpPP1P/1P6/1R1P4/1NBQKR2 b - - 2 23
FEN state: r1bqk2r/pB4p1/1p1bp3/2p1NpPp/PnPpPP1P/1P6/1R1P4/1NBQKR2 b - - 2 23 ; Best move: c8b7
The current state of the chess board is: Black rook at a8, black bishop at c8, black queen at d8, black king at e8 and black rook at h8. Black pawn at a7, white bishop at b7 and black pawn at g7. Black pawn at b6, black bishop at d6 and black pawn at e6. Black pawn at c5, white knight at e5, black pawn at f5, white pawn at g5 and black pawn at h5. White pawn at a4, black knight at b4, white pawn at c4, black pawn at d4, white pawn at e4, white pawn at f4 and white pawn at h4. White pawn at b3. White rook at b2 and white pawn at d2. White knight at b1, white bishop at c1, white queen at d1, white king at e1 and white rook at f1. Both players have exhausted their castles. Half move number is 2. Full move number is 23. Black to move.