r2qkbnr/2nbpppp/1p6/PBpp1P2/P3P3/R6N/2PP2PP/1NBQK2R w Kkq - 1 10
FEN state: r2qkbnr/2nbpppp/1p6/PBpp1P2/P3P3/R6N/2PP2PP/1NBQK2R w Kkq - 1 10 ; Best move: b5d7
The current state of the chess board is: Black rook at a8, black queen at d8, black king at e8, black bishop at f8, black knight at g8 and black rook at h8. Black knight at c7, black bishop at d7, black pawn at e7, black pawn at f7, black pawn at g7 and black pawn at h7. Black pawn at b6. White pawn at a5, white bishop at b5, black pawn at c5, black pawn at d5 and white pawn at f5. White pawn at a4 and white pawn at e4. White rook at a3 and white knight at h3. White pawn at c2, white pawn at d2, white pawn at g2 and white pawn at h2. White knight at b1, white bishop at c1, white queen at d1, white king at e1 and white rook at h1. White kingside, black kingside and black queenside castles are available. Half move number is 1. Full move number is 10. White to move.