rnb1kb1r/p4p2/1p1PpnpB/5P2/2q3P1/P2p3B/R2NQK1P/6NR w kq - 0 21
FEN state: rnb1kb1r/p4p2/1p1PpnpB/5P2/2q3P1/P2p3B/R2NQK1P/6NR w kq - 0 21 ; Best move: d2c4
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black king at e8, black bishop at f8 and black rook at h8. Black pawn at a7 and black pawn at f7. Black pawn at b6, white pawn at d6, black pawn at e6, black knight at f6, black pawn at g6 and white bishop at h6. White pawn at f5. Black queen at c4 and white pawn at g4. White pawn at a3, black pawn at d3 and white bishop at h3. White rook at a2, white knight at d2, white queen at e2, white king at f2 and white pawn at h2. 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.