r1b1k1nr/1p3p2/p3p3/2pP1QP1/4P2p/q7/1R3KP1/1NB2BNR w kq - 0 21
FEN state: r1b1k1nr/1p3p2/p3p3/2pP1QP1/4P2p/q7/1R3KP1/1NB2BNR w kq - 0 21 ; Best move: f5f7
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 b7 and black pawn at f7. Black pawn at a6 and black pawn at e6. Black pawn at c5, white pawn at d5, white queen at f5 and white pawn at g5. White pawn at e4 and black pawn at h4. Black queen at a3. White rook at b2, white king at f2 and white pawn at g2. White knight at b1, white bishop at c1, white bishop at f1, white knight at g1 and white rook at h1. Black kingside and black queenside castles are available. Half move number is 0. Full move number is 21. White to move.