r1qnkbnr/3ppppp/p7/1pp2P2/PPbP4/B4N2/R1PKP1PP/1N1Q1B1R b kq - 2 10
FEN state: r1qnkbnr/3ppppp/p7/1pp2P2/PPbP4/B4N2/R1PKP1PP/1N1Q1B1R b kq - 2 10 ; Best move: c5b4
The current state of the chess board is: Black rook at a8, black queen at c8, black knight at d8, black king at e8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at d7, black pawn at e7, black pawn at f7, black pawn at g7 and black pawn at h7. Black pawn at a6. Black pawn at b5, black pawn at c5 and white pawn at f5. White pawn at a4, white pawn at b4, black bishop at c4 and white pawn at d4. White bishop at a3 and white knight at f3. White rook at a2, white pawn at c2, white king at d2, white pawn at e2, white pawn at g2 and white pawn at h2. White knight at b1, white queen at d1, white bishop at f1 and white rook at h1. Black kingside and black queenside castles are available. Half move number is 2. Full move number is 10. Black to move.