1n2q2k/2pr1p1p/1r2b2n/pp1pp1b1/PP4P1/3P1N2/1BP1NPB1/2RQKR2 w - - 0 23
FEN state: 1n2q2k/2pr1p1p/1r2b2n/pp1pp1b1/PP4P1/3P1N2/1BP1NPB1/2RQKR2 w - - 0 23 ; Best move: b4a5
The current state of the chess board is: Black knight at b8, black queen at e8 and black king at h8. Black pawn at c7, black rook at d7, black pawn at f7 and black pawn at h7. Black rook at b6, black bishop at e6 and black knight at h6. Black pawn at a5, black pawn at b5, black pawn at d5, black pawn at e5 and black bishop at g5. White pawn at a4, white pawn at b4 and white pawn at g4. White pawn at d3 and white knight at f3. White bishop at b2, white pawn at c2, white knight at e2, white pawn at f2 and white bishop at g2. White rook 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 0. Full move number is 23. White to move.