1nb3kr/1p4p1/4r2p/p1ppq1P1/Nb2BpnP/1PP1PP2/P2PR3/R1BQ1K2 b - - 0 23
FEN state: 1nb3kr/1p4p1/4r2p/p1ppq1P1/Nb2BpnP/1PP1PP2/P2PR3/R1BQ1K2 b - - 0 23 ; Best move: d5e4
The current state of the chess board is: Black knight at b8, black bishop at c8, black king at g8 and black rook at h8. Black pawn at b7 and black pawn at g7. Black rook at e6 and black pawn at h6. Black pawn at a5, black pawn at c5, black pawn at d5, black queen at e5 and white pawn at g5. White knight at a4, black bishop at b4, white bishop at e4, black pawn at f4, black knight at g4 and white pawn at h4. White pawn at b3, white pawn at c3, white pawn at e3 and white pawn at f3. White pawn at a2, white pawn at d2 and white rook at e2. White rook at a1, white bishop at c1, 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.