r1b1kb1r/p1p1qpp1/3p3n/1pn1p1P1/P7/2NPB3/1PP1PPP1/R2QKB1R b KQkq - 2 10
FEN state: r1b1kb1r/p1p1qpp1/3p3n/1pn1p1P1/P7/2NPB3/1PP1PPP1/R2QKB1R b KQkq - 2 10 ; Best move: c8b7
The current state of the chess board is: Black rook at a8, black bishop at c8, black king at e8, black bishop at f8 and black rook at h8. Black pawn at a7, black pawn at c7, black queen at e7, black pawn at f7 and black pawn at g7. Black pawn at d6 and black knight at h6. Black pawn at b5, black knight at c5, black pawn at e5 and white pawn at g5. White pawn at a4. White knight at c3, white pawn at d3 and white bishop at e3. White pawn at b2, white pawn at c2, white pawn at e2, white pawn at f2 and white pawn at g2. White rook at a1, white queen at d1, white king at e1, white bishop at f1 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.