rnb4r/3k2p1/p2P1n2/3Q1p1p/pP3PqP/P3p3/4P1R1/R1B1KBN1 w Q - 0 21
FEN state: rnb4r/3k2p1/p2P1n2/3Q1p1p/pP3PqP/P3p3/4P1R1/R1B1KBN1 w Q - 0 21 ; Best move: d5f7
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8 and black rook at h8. Black king at d7 and black pawn at g7. Black pawn at a6, white pawn at d6 and black knight at f6. White queen at d5, black pawn at f5 and black pawn at h5. Black pawn at a4, white pawn at b4, white pawn at f4, black queen at g4 and white pawn at h4. White pawn at a3 and black pawn at e3. White pawn at e2 and white rook at g2. White rook at a1, white bishop at c1, white king at e1, white bishop at f1 and white knight at g1. White queenside is the only castle move available. Half move number is 0. Full move number is 21. White to move.