r1b1k1r1/3pppb1/6p1/2Q5/1nP2B1p/1p1p2PN/4PPKP/1N5R w q - 0 25
FEN state: r1b1k1r1/3pppb1/6p1/2Q5/1nP2B1p/1p1p2PN/4PPKP/1N5R w q - 0 25 ; Best move: c5b4
The current state of the chess board is: Black rook at a8, black bishop at c8, black king at e8 and black rook at g8. Black pawn at d7, black pawn at e7, black pawn at f7 and black bishop at g7. Black pawn at g6. White queen at c5. Black knight at b4, white pawn at c4, white bishop at f4 and black pawn at h4. Black pawn at b3, black pawn at d3, white pawn at g3 and white knight at h3. White pawn at e2, white pawn at f2, white king at g2 and white pawn at h2. White knight at b1 and white rook at h1. Black queenside is the only castle move available. Half move number is 0. Full move number is 25. White to move.