4k1nr/pB1pqpbp/8/1p4p1/NP2PpPP/3P4/PBPKQR2/5RN1 w - - 4 23
FEN state: 4k1nr/pB1pqpbp/8/1p4p1/NP2PpPP/3P4/PBPKQR2/5RN1 w - - 4 23 ; Best move: b2g7
The current state of the chess board is: Black king at e8, black knight at g8 and black rook at h8. Black pawn at a7, white bishop at b7, black pawn at d7, black queen at e7, black pawn at f7, black bishop at g7 and black pawn at h7. Black pawn at b5 and black pawn at g5. White knight at a4, white pawn at b4, white pawn at e4, black pawn at f4, white pawn at g4 and white pawn at h4. White pawn at d3. White pawn at a2, white bishop at b2, white pawn at c2, white king at d2, white queen at e2 and white rook at f2. White rook at f1 and white knight at g1. Both players have exhausted their castles. Half move number is 4. Full move number is 23. White to move.