1nbq1b2/1pkp3r/2p1Bn1p/r1Q5/3P1p1P/P1P2PP1/1P2P2R/RNB1K1N1 w Q - 1 18
FEN state: 1nbq1b2/1pkp3r/2p1Bn1p/r1Q5/3P1p1P/P1P2PP1/1P2P2R/RNB1K1N1 w Q - 1 18 ; Best move: c1f4
The current state of the chess board is: Black knight at b8, black bishop at c8, black queen at d8 and black bishop at f8. Black pawn at b7, black king at c7, black pawn at d7 and black rook at h7. Black pawn at c6, white bishop at e6, black knight at f6 and black pawn at h6. Black rook at a5 and white queen at c5. White pawn at d4, black pawn at f4 and white pawn at h4. White pawn at a3, white pawn at c3, white pawn at f3 and white pawn at g3. White pawn at b2, white pawn at e2 and white rook at h2. White rook at a1, white knight at b1, white bishop at c1, white king at e1 and white knight at g1. White queenside is the only castle move available. Half move number is 1. Full move number is 18. White to move.