Blitz player using chess engine to beat opponents

Hello,

I was wondering if there are any rules or ways to bar people from using a chess engine to beat other players online?

I recently lost a game and when I did the computer analysis, it showed that my opponent played 30 moves as 100% best move (he was rated around 770 at the time of our game). See picture (I was white).

I looked at his profile and he had won his last 7 games in a row. I opened one of those other games and did the computer analysis and it showed the same result. I'm thinking he must be cheating, using another account and playing the moves that Stockfish suggests as the best move. Especially given that he was rated mid 700's and before today had a pretty even win/loss ratio.

I sent him a private message asking if he did use a computer in our game and if so, he should stop immediately as it is probably against the websites rules and it is just not cool.

superman0101 - that's not the point. I want to play with my own skill against someone else's. If I wanted to play a computer, I'd select "Computer."