r1b1kb1r/qp1np1pp/5p1n/2p5/p3P1P1/2PB3P/PP1PNP2/RNBK3R w kq - 3 10
FEN state: r1b1kb1r/qp1np1pp/5p1n/2p5/p3P1P1/2PB3P/PP1PNP2/RNBK3R w kq - 3 10 ; Best move: b1a3
The current state of the chess board is: Black rook at a8, black bishop at c8, black king at e8, black bishop at f8 and black rook at h8. Black queen at a7, black pawn at b7, black knight at d7, black pawn at e7, black pawn at g7 and black pawn at h7. Black pawn at f6 and black knight at h6. Black pawn at c5. Black pawn at a4, white pawn at e4 and white pawn at g4. White pawn at c3, white bishop at d3 and white pawn at h3. White pawn at a2, white pawn at b2, white pawn at d2, white knight at e2 and white pawn at f2. White rook at a1, white knight at b1, white bishop at c1, white king at d1 and white rook at h1. Black kingside and black queenside castles are available. Half move number is 3. Full move number is 10. White to move.