https://support.chess.com/article/648-what-do-i-need-to-know-about-fair-play-on-chess-com
https://www.chess.com/article/view/online-chess-cheating
The site does check a lot of games but with 20+ million games a day, not all games or all accounts get checked.
Last month, over 100,000 accounts were closed for fair play violations.
https://www.chess.com/article/view/chesscom-update-january-2023#FairPlay
If you suspect someone, you should report them.
https://support.chess.com/article/209-how-do-i-report-someone
That said, discussions of cheating, potential cheating, or cheat detection are not allowed in the general forums. If you would like to discuss, join the following club: https://www.chess.com/club/cheating-forum
Hello folks, let me tell you a story.
Today, as i was quietly enjoying chess, i encountered two cheaters in a few games. My mood went from happy :-) to grrr i'm angry :-(.
I said to myself : "Hey, their playstyle were really suspect, let's take a look to their profil and check". For both players, about one hundred game played and only a few loss sustained.
Ok, let's stop here. The cheating was obvious as soon as i looked the profils and performed some analysis. Hundred of games were ruined by these two "players", and if they are now out it's only because i detected it, manually analyze their games and reported them. So i have a question :
Why doesn't chesscom automatically perform a cheater detection when a new account perform very high win rate? This is not a rethorical question, i know may miss something and i'm really interested by the answer. If my games may be ruined i better know why.