rq3knr/3p1p2/5Pp1/2Pb3p/1PP1p3/5P1P/P2NP2R/R1B1KBN1 w Q - 1 21
FEN state: rq3knr/3p1p2/5Pp1/2Pb3p/1PP1p3/5P1P/P2NP2R/R1B1KBN1 w Q - 1 21 ; Best move: f3e4
The current state of the chess board is: Black rook at a8, black queen at b8, black king at f8, black knight at g8 and black rook at h8. Black pawn at d7 and black pawn at f7. White pawn at f6 and black pawn at g6. White pawn at c5, black bishop at d5 and black pawn at h5. White pawn at b4, white pawn at c4 and black pawn at e4. White pawn at f3 and white pawn at h3. White pawn at a2, white knight at d2, white pawn at e2 and white rook at h2. 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 1. Full move number is 21. White to move.