r1b1k1nr/pp3pbp/2ppp1p1/8/QnPP2P1/7N/P3PP1P/RNB1KB1R w Qkq - 0 10
FEN state: r1b1k1nr/pp3pbp/2ppp1p1/8/QnPP2P1/7N/P3PP1P/RNB1KB1R w Qkq - 0 10 ; Best move: a4b4
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 a7, black pawn at b7, black pawn at f7, black bishop at g7 and black pawn at h7. Black pawn at c6, black pawn at d6, black pawn at e6 and black pawn at g6. White queen at a4, black knight at b4, white pawn at c4, white pawn at d4 and white pawn at g4. White knight at h3. White pawn at a2, white pawn at e2, white pawn at f2 and white pawn at h2. White rook at a1, white knight at b1, white bishop at c1, white king at e1, white bishop at f1 and white rook at h1. White queenside, black kingside and black queenside castles are available. Half move number is 0. Full move number is 10. White to move.