r4b1r/pb1kp3/P1pp3n/1p1P4/4pp1p/Q1N5/q1P1K1PP/R1B1NB1R w - - 0 25
FEN state: r4b1r/pb1kp3/P1pp3n/1p1P4/4pp1p/Q1N5/q1P1K1PP/R1B1NB1R w - - 0 25 ; Best move: a1a2
The current state of the chess board is: Black rook at a8, black bishop at f8 and black rook at h8. Black pawn at a7, black bishop at b7, black king at d7 and black pawn at e7. White pawn at a6, black pawn at c6, black pawn at d6 and black knight at h6. Black pawn at b5 and white pawn at d5. Black pawn at e4, black pawn at f4 and black pawn at h4. White queen at a3 and white knight at c3. Black queen at a2, white pawn at c2, white king at e2, white pawn at g2 and white pawn at h2. White rook at a1, white bishop at c1, white knight at e1, white bishop at f1 and white rook at h1. Both players have exhausted their castles. Half move number is 0. Full move number is 25. White to move.