rnb1kbnr/q5p1/1p2ppP1/p1pp3p/1P6/2P2N2/P2PPP1P/1RBQKB1R b Kkq - 1 10
FEN state: rnb1kbnr/q5p1/1p2ppP1/p1pp3p/1P6/2P2N2/P2PPP1P/1RBQKB1R b Kkq - 1 10 ; Best move: a5b4
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black king at e8, black bishop at f8, black knight at g8 and black rook at h8. Black queen at a7 and black pawn at g7. Black pawn at b6, black pawn at e6, black pawn at f6 and white pawn at g6. Black pawn at a5, black pawn at c5, black pawn at d5 and black pawn at h5. White pawn at b4. White pawn at c3 and white knight at f3. White pawn at a2, white pawn at d2, white pawn at e2, white pawn at f2 and white pawn at h2. White rook at b1, white bishop at c1, white queen at d1, white king at e1, white bishop at f1 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. Black to move.