4kbnr/p1q4r/BpP4p/2npP1p1/4Q2P/5NPR/P1PN4/R1BK1r2 w k - 0 25
FEN state: 4kbnr/p1q4r/BpP4p/2npP1p1/4Q2P/5NPR/P1PN4/R1BK1r2 w k - 0 25 ; Best move: a6f1
The current state of the chess board is: Black king at e8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at a7, black queen at c7 and black rook at h7. White bishop at a6, black pawn at b6, white pawn at c6 and black pawn at h6. Black knight at c5, black pawn at d5, white pawn at e5 and black pawn at g5. White queen at e4 and white pawn at h4. White knight at f3, white pawn at g3 and white rook at h3. White pawn at a2, white pawn at c2 and white knight at d2. White rook at a1, white bishop at c1, white king at d1 and black rook at f1. Black kingside is the only castle move available. Half move number is 0. Full move number is 25. White to move.