Search found 2907 matches

by Matthew Turner
Wed Jun 24, 2020 3:28 pm
Forum: General Chat
Topic: Cheating in chess
Replies: 902
Views: 104672

Re: Cheating in chess

Roger, I don’t think there is necessarily an inconsistency here if you read the whole piece. The author is saying that he suspected three of his players of cheating and then chess.com banned them. That he concludes makes it a certainty that the player(s) cheated. There are other cases where chess.co...
by Matthew Turner
Wed Jun 24, 2020 2:33 pm
Forum: General Chat
Topic: Cheating in chess
Replies: 902
Views: 104672

Re: Cheating in chess

Justin,
It also say that the Lichess (average centipawn loss) system doesn't work and they would need 50 games to catch anybody cheating, so if someone sues Lichess will chess.com go up in court and say that. I don't know about you but I find that interesting.
by Matthew Turner
Wed Jun 24, 2020 12:55 pm
Forum: General Chat
Topic: Cheating in chess
Replies: 902
Views: 104672

Re: Cheating in chess

Roger,
I agree, but isn't that what makes it so interesting! One small point I would make is that I think there is a big difference between an IM detecting cheating by an 800 rated student to a human detecting cheating by an IM.
by Matthew Turner
Wed Jun 24, 2020 12:18 pm
Forum: General Chat
Topic: Cheating in chess
Replies: 902
Views: 104672

Re: Cheating in chess

There an interesting article here which i think it is worth reading
https://www.chess.com/article/view/scho ... s-cheating
by Matthew Turner
Tue Jun 23, 2020 2:15 pm
Forum: General Chat
Topic: Media comments on chess
Replies: 3584
Views: 391105

Re: Media comments on chess

Not sure how true it is, but this always seemed like a good answer to me

https://www.funtrivia.com/askft/Question96683.html
by Matthew Turner
Mon Jun 22, 2020 8:17 pm
Forum: Chess History
Topic: Lost Boys tournaments
Replies: 9
Views: 381

Re: Lost Boys tournaments

It also says founded 1987, so the timeline is a bit fuzzy.
by Matthew Turner
Mon Jun 22, 2020 8:10 pm
Forum: Not Chess!
Topic: Worst film of all time: new contender?
Replies: 23
Views: 2104

Re: Worst film of all time: new contender?

Myra Breckinridge gets the nod from the daily telegraph today.
by Matthew Turner
Mon Jun 22, 2020 8:07 pm
Forum: Chess History
Topic: Lost Boys tournaments
Replies: 9
Views: 381

Re: Lost Boys tournaments

I am not 100% sure, but I think this is the answer
https://en.wikipedia.org/wiki/LBi
by Matthew Turner
Sun Jun 21, 2020 12:47 pm
Forum: General Chat
Topic: Annoying message on Lichess
Replies: 9
Views: 654

Re: Annoying message on Lichess

Eric, This is what Lichess say in their FAQs If your opponent frequently aborts/leaves games, they get "play banned", which means they're temporarily banned from playing games. This is not publicly indicated on their profile. If this behavior continues, the length of the playban increases - and prol...
by Matthew Turner
Sun Jun 21, 2020 11:17 am
Forum: General Chat
Topic: Annoying message on Lichess
Replies: 9
Views: 654

Re: Annoying message on Lichess

Eric,
I really wouldn’t worry about it, it is just an automated system and if it happened 3 times in a short period of time you would get a 10 minute ban.
Matt
by Matthew Turner
Sun Jun 21, 2020 9:28 am
Forum: General Chat
Topic: Some thoughts on anti-cheating systems
Replies: 220
Views: 6453

Re: Some thoughts on anti-cheating systems

Thank you.
by Matthew Turner
Sun Jun 21, 2020 8:16 am
Forum: General Chat
Topic: Some thoughts on anti-cheating systems
Replies: 220
Views: 6453

Re: Some thoughts on anti-cheating systems

I noticed the UK Chess Challenge Mega-Finals are playing this weekend on Lichess. It was a bit of shame the 2nd and 5th placers in the Under 14’s have received Lichess bans for using computer assistance post-tournament. Likewise the winner and 5th placer in the Under 12 Boys we’re also banned. Ther...
by Matthew Turner
Fri Jun 19, 2020 9:51 am
Forum: 4NCL
Topic: 4NCL Online
Replies: 771
Views: 31895

Re: 4NCL Online

Matthew, I was just making the point that an event which appears very unlikely can be made much more plausible by a moderate shift in our assumptions. The 3045 rating for a 2245 player is only as high as it is because the test sample size is so small (5 or 6 games I assume) and hence there is signi...
by Matthew Turner
Fri Jun 19, 2020 9:42 am
Forum: 4NCL
Topic: 4NCL Online
Replies: 771
Views: 31895

Re: 4NCL Online

Martin, Players improve and some players improve rapidly, but I don't really see the relevance of the past grading history. All we need to know is that Knightie starts at 206 and ends at 230. He goes from 2245 to 2425 He has got a z score of 4 by selecting engine moves at a rate associated with a 30...
by Matthew Turner
Thu Jun 18, 2020 7:20 pm
Forum: 4NCL
Topic: 4NCL Online
Replies: 771
Views: 31895

Re: 4NCL Online

David,
I don’t really understand what you are trying to say here. For Ken Regan’s test the standard deviation is based on the entire population. So if knightie is 206 that is 2245 and he would have to select engine moves at a rate associated with a player rated 3045 to get a z score of 4.
Matt