Cheater or not? what do you think

https://support.chess.com/article/648-what-do-i-need-to-know-about-fair-play-on-chess-com
If you suspect a member is using disallowed resources you should report them but not post the member or links to games in the forums.
https://support.chess.com/article/209-how-do-i-report-someone
Discussions of cheating, potential cheating, or cheat detection are not allowed in the general forums.