r1b1kb2/pp4r1/2nq1nP1/2p1pp2/P1p1P1p1/NP1P3P/2P1NKP1/1RB2R2 w q - 3 25
FEN state: r1b1kb2/pp4r1/2nq1nP1/2p1pp2/P1p1P1p1/NP1P3P/2P1NKP1/1RB2R2 w q - 3 25 ; Best move: a3c4
The current state of the chess board is: Black rook at a8, black bishop at c8, black king at e8 and black bishop at f8. Black pawn at a7, black pawn at b7 and black rook at g7. Black knight at c6, black queen at d6, black knight at f6 and white pawn at g6. Black pawn at c5, black pawn at e5 and black pawn at f5. White pawn at a4, black pawn at c4, white pawn at e4 and black pawn at g4. White knight at a3, white pawn at b3, white pawn at d3 and white pawn at h3. White pawn at c2, white knight at e2, white king at f2 and white pawn at g2. White rook at b1, white bishop at c1 and white rook at f1. Black queenside is the only castle move available. Half move number is 3. Full move number is 25. White to move.