1r3bkr/pp2p1pp/2Q5/n1pp3n/P1P2PPP/8/1P1PP2R/R1BNKBq1 w Q - 0 18
FEN state: 1r3bkr/pp2p1pp/2Q5/n1pp3n/P1P2PPP/8/1P1PP2R/R1BNKBq1 w Q - 0 18 ; Best move: c6e6
The current state of the chess board is: Black rook at b8, black bishop at f8, black king at g8 and black rook at h8. Black pawn at a7, black pawn at b7, black pawn at e7, black pawn at g7 and black pawn at h7. White queen at c6. Black knight at a5, black pawn at c5, black pawn at d5 and black knight at h5. White pawn at a4, white pawn at c4, white pawn at f4, white pawn at g4 and white pawn at h4. White pawn at b2, white pawn at d2, white pawn at e2 and white rook at h2. White rook at a1, white bishop at c1, white knight at d1, white king at e1, white bishop at f1 and black queen at g1. White queenside is the only castle move available. Half move number is 0. Full move number is 18. White to move.