Cheating with Engines and Banning.

One of my friend used Stockfish chess engine's help while playing tournaments. He was almost destroying every opponent. We live in the same room that's why I was aware of his trick. But unfortunately (*some may say fortunately) his account was banned just after winning 3 games with the help of Stockfish. He was very shocked and when we shared his story with me I was also shocked because How can Chess.com know this things! Does they have a spyware in everyone's laptop or smartphone? Obviously no! Than how do they know that a member is actually duplicating engine's move? His account was disabled. * It's a warning post for the piece of scums who copies engines move while playing online chess.

inb4 the lock

gingerninja2003 wrote: inb4 the lock ???

someone gets 100% best move on every game. they might think that's suspicious.

Than what if a GM plays 100% best move?

your not allowed to discuss cheating in forums so they lock it (making it impossible to comment on the post) so i said which means i commented something before chess.com locked it

Oh.. So is my account threatened for ban ? as I have created a topic which discuss about cheating?

In before the lock (by David, I'm guessing).

The software works by determining how many moves a human player makes that matches the best move as found by a strong engine. If it's a high percentage, this information (plus a lot of other analysis, I'm sure - chess.com understandably won't reveal their exact methods) is used to determine if someone is cheating. It's very accurate. Even the strongest GM players can't consistently play engine moves over the course of a game.

Chess.com's cheat detection program is very strong.

I used to think otherwise, but then they banned a bunch of my opponents who I personally analyzed, but couldn't determine anything.

I'm not surprised that your friend, who sounds like a very weak player, got banned quickly.

He probably didn't even try to thwart the detection, which makes it trivial for anyone with a copy of stockfish to see.

in before the lock!

He will just open another account, so it doesnt matter how strong/good/effective the cheat detection is.  

Why was your friend doing that? Did it make him feel smart or something?
And would you leave your wallet out on the table in front of him?

Chess.com takes cheating very seriously: see https://www.chess.com/article/view/chess-com-fair-play-and-cheat-detection, https://support.chess.com/customer/en/portal/articles/1444879-fair-play-on-chess-com-what-you-need-to-know and https://www.chess.com/blog/DanielRensch/cheating-on-chesscom.
Having said that, public accusations in the open forums is not the way to address these concerns, so I am locking this thread; please report any suspected cheating to the Support team via https://support.chess.com/customer/portal/emails/new and trust that it will be investigated, even if there is no immediate visible action.
To learn more about cheat detection, please join the Cheat Detection Club at https://www.chess.com/club/cheating-forum