You don't know when someone cheats. Your just making a lame excuse because you lost. Grow up.
engine using
Sort:
https://support.chess.com/customer/en/portal/articles/1444879-fair-play-on-chess-com-what-you-need-to-know
Discussions of cheating, potential cheating or cheat detection are not allowed on the general forums. If you would like to have that discussion, join the following group.
https://www.chess.com/groups/home/cheating-forum
if someone clearly used an engine in a tournament, does he just get away with it, or can I report him to the admins, if yes please tell me how?