1rbn1knr/p1pp4/1p2p2p/q5p1/PPPB1NP1/N7/R3PP2/2Q1KB2 w - - 1 23
FEN state: 1rbn1knr/p1pp4/1p2p2p/q5p1/PPPB1NP1/N7/R3PP2/2Q1KB2 w - - 1 23 ; Best move: b4a5
The current state of the chess board is: Black rook at b8, black bishop at c8, black knight at d8, black king at f8, black knight at g8 and black rook at h8. Black pawn at a7, black pawn at c7 and black pawn at d7. Black pawn at b6, black pawn at e6 and black pawn at h6. Black queen at a5 and black pawn at g5. White pawn at a4, white pawn at b4, white pawn at c4, white bishop at d4, white knight at f4 and white pawn at g4. White knight at a3. White rook at a2, white pawn at e2 and white pawn at f2. White queen at c1, white king at e1 and white bishop at f1. Both players have exhausted their castles. Half move number is 1. Full move number is 23. White to move.