Chess.com banned Hans after beating Magnus. Why?

Destroyed chessbomb?

The site seems the same as it's always been to me.

Chess.com has repeatedly stated that their fair play program uses algorithms that they would be willing to defend in court.  That for them to ban someone for cheating, that the statistical likelihood that they were in fact cheating would stand up to mathematical scrutiny in a courtroom.

Do I believe Hans cheated? Yes.

The bigger question here is did Magnus think that Hans cheated all on his own, or did he get a ring from someone at chess.com?

Was Hans shadowbanned before or after the magnus tweet?

That's a good question. Is it possible bending the rules could involve something nobody has checked?

Because the daily cheat detection is wholly inadequate.  It's 2022, ffs.  Technology has come a long way since the days of stashing a cell phone in the bathroom.  There should be a 30-minute delay on broadcasts and live feeds AND the competitors should be competing in a room where no wifi, data or radio signals can get in.  The bathrooms should be included in that space. 

Brain implants are possible, but they've never been tested on humans and they're not advanced enough to run chess engines. Some time this century, we will need to tackle these issues if we're not too busy with other matters.

That's for people who play in chess.com platform, where chess.com can gather information about how they use the site, including mouse moves, clicks, etc. along with the normal engine analysis, etc.

Chess.com has absolutely no control beyond this site and certainly has no control over the SL OTB tournament. So they are missing ALL components in their cheating detection other than the engine check on the SuperGM moves, and at such level it's impossible to say a super GM is cheating just because they played a variation the engine agrees on. 

So unless the tournament officials catch one of the super gms on the spot getting assistance, it can't be said they have been cheating.

 Accusations such as these have already happened before, in the match between Kramnik and Topalov for the World Champion title, and nothing conclusive came out of it for obvious reasons because analysis alone cannot tell whether there's been cheating or not, at such level.

Danny, did you ban Hans? I have no reason to not take Hans at his word, but in a situation like this we should be careful with facts. According to him, chess.com closed his account. Magnus, Hikaru and (supposedly) Danny of chess,com have essentially accused Hans of cheating without presenting an iota of evidence.  So I ask again, did you ban him? If you did, why? If not, say so. A nineteen year old kid can be truly stupid, but he can also be innocent. 

Chess.com also analyses elite level games outside of their website and has caught cheaters long before FIDE.  

Danny Rensch explains the fair play system here:

https://www.youtube.com/watch?v=knvySXCNfd8

Chess.com doesn't ban cheaters without statistical certainty that they would be willing to defend in court.  Beyond words, Hans wont challenge this.  If he takes it to court, he will lose.

Has chess.com caught cheaters in FIDE OTB tournaments completely unrelated to chess.com before? Who? Please do tell because I honestly have not heard a single case before.

This is effectively an appeal to authority and a pretty bad one at that given chess.com has a known history of false positives and that Hans hasn't played a game here since August 29.

Can you mention at least a single example of chess.com's cheating detection being use by FIDE to rule a player a cheater?

You are assuming such hundreds of thousands of bans were all legitimate and that the known cases are all the false positives there have ever been. The fact is there's no empirical data on the reliability of their anti cheat system nor concrete knowledge of how it works.

Not *them*, FIDE.

Then why would I care at all if chess.com uses their anti cheat on FIDE games or not if their validity hasn't be corroborated by them?

  Could you at least tell us the names of some GMs FIDE has found out cheating in OTB tournaments, thanks to chess.com detection algorithm? 

 Oh no you probably cannot. Because, in a nutshell, you are saying "I dont know, but trust me". 

 Spoiler alert: Chess.com is not the "police" in the world of chess. It's just a website. Its banning powers exist only within the realm of their website. 

 Yeah but I think it's quite difficult to measure clicks, mouse moves, and other browser events, in an OTB tournament ... As we have already established just engine analysis won't do... so I suppose they have captured browser events every time Hans moved a piece ... Matrix is real, lols. 

 Because you have no effing proof of anything you say. You claim something and immediately state you can't prove it because you have no information. I could claim Carlsen cheated in his World Championship matches but then say I have no proof, just "trust me". That's exactly what you are doing so the irony you calling other people retards is off the scale.

Chess.com does not publicly discuss those who they catch in fair play violations.  It would be unprofessional and unseemly.  The ONLY reason anyone knows that Hans got banned is because Hans said so publicly.  If Hans had said nothing, would you just have assumed he closed his account?

Their fair play algorithms have been audited by Harvard statisticians and found to be mathematically sound enough to be presented in court.  Catching FIDE players before FIDE just doesn't seem like something they would make up.

Watch the video I linked to you.  It thoroughly explains the whole process so you don't have to keep asking unnecessary questions.

EDIT:  I am just going to link this at the bottom of every post in this thread.

https://www.youtube.com/watch?v=knvySXCNfd8

Unfortunately, you are using a public forum where conversations aren't exclusive to a binary party, odd how that works huh?

Again, you are blindly believing in the effectiveness of their anti cheat. Feel free to do so, just be sure to remember it is indeed a belief