How to prevent obvious cheaters from getting into your group
"Open source recommendations, based on team feedback (Last updated 10/15):
What to look for: 1) A player who has a very high rating and mainly wins and extremely few losses/draws (and has played many games) 2) A player whoes rating keep increasing linearly, or jumps suddenly 400-600+ points, and who have played many games (premium members can see rating graphs for other members) 3) Lots of short games involving very few opponents, one of which is always losing and another one winning (say fool's mate).
Below can raise some flags, but in themselves does not offer much evidence: 1) A player who does not have a title, but has 2300+ in online rating 2) A player who does not have a FIDE rating, but 2000+ in online rating 3) A player who is 2100+ and have 100+ concurrent online games (and no title or FIDE rating) 4) Discrepanicies between online ratings and other ratings (bullet/blitz/tactics)... when all ratings reflect many games played and not too many time out in fast games (which could be due to slow connections). An example would be a 800 points diffference with at least 100-150 games played.
None of this offer proof of cheating, but you can use it to determine whether to invite a new member. If you suspect cheating for someone who is already in your group, it may be best not to kick him/her out, but to file a support request with chess.com and let them determine if it is cheating or not.
From chess.com knowledge base:
How do I report someone I think is cheating?
If you have reason to believe someone is cheating, please report it here and include all relevant info (username, reason for suspicion, etc). We investigate all reports and keep them confidential.
Please do not discuss your suspicions in the forums!
How to prevent obvious cheaters from getting into your group
"Open source recommendations, based on team feedback (Last updated 10/15):
What to look for:
1) A player who has a very high rating and mainly wins and extremely few losses/draws (and has played many games)
2) A player whoes rating keep increasing linearly, or jumps suddenly 400-600+ points, and who have played many games (premium members can see rating graphs for other members)
3) Lots of short games involving very few opponents, one of which is always losing and another one winning (say fool's mate).
Below can raise some flags, but in themselves does not offer much evidence:
1) A player who does not have a title, but has 2300+ in online rating
2) A player who does not have a FIDE rating, but 2000+ in online rating
3) A player who is 2100+ and have 100+ concurrent online games (and no title or FIDE rating)
4) Discrepanicies between online ratings and other ratings (bullet/blitz/tactics)... when all ratings reflect many games played and not too many time out in fast games (which could be due to slow connections). An example would be a 800 points diffference with at least 100-150 games played.
None of this offer proof of cheating, but you can use it to determine whether to invite a new member. If you suspect cheating for someone who is already in your group, it may be best not to kick him/her out, but to file a support request with chess.com and let them determine if it is cheating or not.
From chess.com knowledge base:
How do I report someone I think is cheating?
https://support.chess.com/customer/portal/articles/1444879-cheaters-cheating-what-you-need-to-know