A computer would make 90% of the moves that a computer would make? That doesn't make any sense. Anyway, follow the forum rules: https://www.chess.com/forum/view/community/chesscom-policy-on-cheating
Is there any way to prevent cheating?
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I play a lot of players who play exactly as a computer would and 90+% of their moves are the number one suggested by stockfish when I analyze the games.