rnb1k2r/1p1p1pp1/p2b3n/q1p1p3/PPP1P1Pp/2N5/3P1P1P/R1BQKBNR b KQkq - 2 10
FEN state: rnb1k2r/1p1p1pp1/p2b3n/q1p1p3/PPP1P1Pp/2N5/3P1P1P/R1BQKBNR b KQkq - 2 10 ; Best move: c5b4
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black king at e8 and black rook at h8. Black pawn at b7, black pawn at d7, black pawn at f7 and black pawn at g7. Black pawn at a6, black bishop at d6 and black knight at h6. Black queen at a5, black pawn at c5 and black pawn at e5. White pawn at a4, white pawn at b4, white pawn at c4, white pawn at e4, white pawn at g4 and black pawn at h4. White knight at c3. White pawn at d2, white pawn at f2 and white pawn at h2. 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, black kingside and black queenside castles are available. Half move number is 2. Full move number is 10. Black to move.