r3k1n1/p5b1/n3Np1r/2pp3p/2P1p1b1/1P1PP2P/3B1PP1/1NQqKB1R w q - 4 25
FEN state: r3k1n1/p5b1/n3Np1r/2pp3p/2P1p1b1/1P1PP2P/3B1PP1/1NQqKB1R w q - 4 25 ; Best move: c1d1
The current state of the chess board is: Black rook at a8, black king at e8 and black knight at g8. Black pawn at a7 and black bishop at g7. Black knight at a6, white knight at e6, black pawn at f6 and black rook at h6. Black pawn at c5, black pawn at d5 and black pawn at h5. White pawn at c4, black pawn at e4 and black bishop at g4. White pawn at b3, white pawn at d3, white pawn at e3 and white pawn at h3. White bishop at d2, white pawn at f2 and white pawn at g2. White knight at b1, white queen at c1, black queen at d1, white king at e1, white bishop at f1 and white rook at h1. Black queenside is the only castle move available. Half move number is 4. Full move number is 25. White to move.