rnb1kb2/p2p2pr/2p1pn2/1pQ5/5p2/N3PP1P/PPP3P1/R1B1K1NR w KQq - 0 10
FEN state: rnb1kb2/p2p2pr/2p1pn2/1pQ5/5p2/N3PP1P/PPP3P1/R1B1K1NR w KQq - 0 10 ; Best move: c5d4
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black king at e8 and black bishop at f8. Black pawn at a7, black pawn at d7, black pawn at g7 and black rook at h7. Black pawn at c6, black pawn at e6 and black knight at f6. Black pawn at b5 and white queen at c5. Black pawn at f4. White knight at a3, white pawn at e3, white pawn at f3 and white pawn at h3. White pawn at a2, white pawn at b2, white pawn at c2 and white pawn at g2. White rook at a1, white bishop at c1, white king at e1, white knight at g1 and white rook at h1. White kingside, white queenside and black queenside castles are available. Half move number is 0. Full move number is 10. White to move.