1r2kbnr/pbq2p1p/3ppP2/1p4p1/PnP5/7P/1P1PP1P1/R1BQKBNR w KQk - 1 10
FEN state: 1r2kbnr/pbq2p1p/3ppP2/1p4p1/PnP5/7P/1P1PP1P1/R1BQKBNR w KQk - 1 10 ; Best move: a4b5
The current state of the chess board is: Black rook at b8, black king at e8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at a7, black bishop at b7, black queen at c7, black pawn at f7 and black pawn at h7. Black pawn at d6, black pawn at e6 and white pawn at f6. Black pawn at b5 and black pawn at g5. White pawn at a4, black knight at b4 and white pawn at c4. White pawn at h3. White pawn at b2, white pawn at d2, white pawn at e2 and white pawn at g2. White rook at a1, white bishop at c1, white queen at d1, white king at e1, white bishop at f1, white knight at g1 and white rook at h1. White kingside, white queenside and black kingside castles are available. Half move number is 1. Full move number is 10. White to move.