r1b1k1nr/ppBp1p1Q/6B1/q7/2p1P3/1PP4P/P4PPR/RN2K1N1 w Q - 1 21
FEN state: r1b1k1nr/ppBp1p1Q/6B1/q7/2p1P3/1PP4P/P4PPR/RN2K1N1 w Q - 1 21 ; Best move: h7f7
The current state of the chess board is: Black rook at a8, black bishop at c8, black king at e8, black knight at g8 and black rook at h8. Black pawn at a7, black pawn at b7, white bishop at c7, black pawn at d7, black pawn at f7 and white queen at h7. White bishop at g6. Black queen at a5. Black pawn at c4 and white pawn at e4. White pawn at b3, white pawn at c3 and white pawn at h3. White pawn at a2, white pawn at f2, white pawn at g2 and white rook at h2. White rook at a1, white knight at b1, 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 21. White to move.