rnb2knr/ppqp1p2/3b2pp/2p1p3/1PB1P3/N2P3P/P1P1QPP1/R1B1K1NR b KQ - 1 10
FEN state: rnb2knr/ppqp1p2/3b2pp/2p1p3/1PB1P3/N2P3P/P1P1QPP1/R1B1K1NR b KQ - 1 10 ; Best move: a7a6
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black king at f8, black knight at g8 and black rook at h8. Black pawn at a7, black pawn at b7, black queen at c7, black pawn at d7 and black pawn at f7. Black bishop at d6, black pawn at g6 and black pawn at h6. Black pawn at c5 and black pawn at e5. White pawn at b4, white bishop at c4 and white pawn at e4. White knight at a3, white pawn at d3 and white pawn at h3. White pawn at a2, white pawn at c2, white queen at e2, white pawn at f2 and white pawn at g2. White rook at a1, white bishop at c1, white king at e1, white knight at g1 and white rook at h1. White kingside and white queenside castles are available. Half move number is 1. Full move number is 10. Black to move.