Time Cheating on Chess.com

I have seen plenty of reports and the vast majority of them are directly attributable to how the site handles lag and lag compensation.

And the developers have access to the code and while bugs certainly are possible, a major long term problem with the clocks is highly unlikely as they know what they're doing.

just had my first experience with the 'watched my opponent's clock run to zero, never saw my opponent's final move on my screen, and then Chess.com told me I lost'

in a house with blazing fast, stable internet - in a winning position, and slightly up on time (7.4 v 6.3 s before his final move that only existed in some servers somewhere but not on my screen)

i mean, ultimately whatever, I'm a bad amateur chess player and nothing other than a few points on my crummy bullet rating on the line...but it was odd...I guess it was my time to get Kramnik'd

https://www.chess.com/game/live/112207279135

hope this remains a rare issue

It's not rare for me, happens every time scramble

I saw fothamchesss aponenr lagging when he should have flagged and played on

Maybe it was connection to server issues I bet and the clock showed as wrong even if the clock itself was fine

Lagg happens all the time clash of clames aborted a couple games cause of server lagg in situations like this

There was a very weird bug that was found out due to that and was fixed a day ago.

The winner of all the recent chess.com tournaments has been lichess

It depends on the interface protocol between the browser of the client and the server. And the location, where the actual move time is measured. Think about all combinations of what COULD be done with the the above and create yourself a table. Then take a red pen and paint all the squares red in the grid, where a client side manipulation is possible.

If any of you states things like "It can only be lag" etc., you quietly assume, chess.com did everything right (not sending time information from client to server and all time related book-keeping done on the server).

So, is it possible chess.com and the way they did things opens up the possibility to cheat with time? Yes - to find out if that is actually the case, a code review would be needed.

For someone who’s username is be happy have joy you sure are grumpy about how bad you are at bullet. Believe it or not humans can’t count seconds completely accurately and that’s why your time doesn’t fit. As for theses “ magic” moments people claim to have had they just messed up in a time scramble, happens to everyone. I just let a game go a few minutes ago because I was scared I would lose on time and we had to draw. Stop complaining, get a better mouse and play less bullet, if it really bothers you. If you play 10/15 rapid you will rarely run into this problem

From time to time it happens that my oponent should make his move, but the clock decides that I loose on time, not him who is not playing ! I think somebody is able to manipulate the clock in some vice-versa way. Some similar experiences ?

Your opponents can't impact your connection or clock. If you are disconnected from the live server process, which can happen due to a lot of different reasons having nothing to do with your opponent, then what you're seeing can happen.

You didn't bother looking anything up before you subjected everyone to your opinion. That's just dumb. There's literally youtube videos teaching how to exploit chess.com. Stop being opinionated and lazy and go look first.

The server keeps the official clocks and someone would have to hack the server to change clocks in a game. It's not happening.

And who cares about more time

Besides just cause a video about it doesn't mean it's common besides out of 10000+ chess games I never noticed that (maybe some lag occasionally but that's it) it doesn't hurt your elo that much if at all

behappyhavejoy I agree 1000%

This issues can be easily solved. Stop the time stamping. Then we go back To Yahoo 1998? The guy with the best connection wins.

yes i have notice and lost many games from this type of cheat especially from India country. i pre move and i notice that it leg for some reason and i pay for blast speed internet xfinity

Say that again?

Chess.com is lag compensating to maximize profit. It is thus logicsl that certain country players play faster. Eg India, Indonesia, Philipines etc. This is the market for Chess.com. It is cheating by Chess.com in fact.

The site uses lag compensation to not count all lag against a player but still try to keep games close to the time control limits.

Still cheating none the less