rn1kn2r/q4pbp/b7/p1pP1ppP/1p1P2P1/5P2/PP2PR2/RNB1KBN1 w Q - 2 21
FEN state: rn1kn2r/q4pbp/b7/p1pP1ppP/1p1P2P1/5P2/PP2PR2/RNB1KBN1 w Q - 2 21 ; Best move: c1g5
The current state of the chess board is: Black rook at a8, black knight at b8, black king at d8, black knight at e8 and black rook at h8. Black queen at a7, black pawn at f7, black bishop at g7 and black pawn at h7. Black bishop at a6. Black pawn at a5, black pawn at c5, white pawn at d5, black pawn at f5, black pawn at g5 and white pawn at h5. Black pawn at b4, white pawn at d4 and white pawn at g4. White pawn at f3. White pawn at a2, white pawn at b2, white pawn at e2 and white rook at f2. White rook at a1, white knight at b1, 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 2. Full move number is 21. White to move.