1rbqkb1r/2p1p1p1/2np1n2/pp3p2/1PP2P1p/B3P2P/P2P2P1/RNQ1KBNR w Qk - 0 10
FEN state: 1rbqkb1r/2p1p1p1/2np1n2/pp3p2/1PP2P1p/B3P2P/P2P2P1/RNQ1KBNR w Qk - 0 10 ; Best move: c4b5
The current state of the chess board is: Black rook at b8, black bishop at c8, black queen at d8, black king at e8, black bishop at f8 and black rook at h8. Black pawn at c7, black pawn at e7 and black pawn at g7. Black knight at c6, black pawn at d6 and black knight at f6. Black pawn at a5, black pawn at b5 and black pawn at f5. White pawn at b4, white pawn at c4, white pawn at f4 and black pawn at h4. White bishop at a3, white pawn at e3 and white pawn at h3. White pawn at a2, white pawn at d2 and white pawn at g2. White rook at a1, white knight at b1, white queen at c1, white king at e1, white bishop at f1, white knight at g1 and white rook at h1. White queenside and black kingside castles are available. Half move number is 0. Full move number is 10. White to move.