Can you give me the URL of a page on gametz.com where it happened?
I'm not sure how it manifests, but maybe you could hit "back" and see. It's the code on the page at gametz that would have the redirect in it and thus be the source. The page it sends you to isn't that helpful as far as I know. Though, I assume it would be a pain in the butt to track down as it would likely try to redirect again when you went back...
I would tend to assume that it's some nefarious AdSense advertiser that managed to sneak past the detection they have. But, it's possible my site is hacked in some way and I should try to look at all the code on that page to see if there's anything funky.
I have no individual ad control over AdSense as far as I know. Reporting stuff to Google is like talking to a brick wall based on past experience (I've seen lots of outright fraud and reported it but never got a reply).
Googling this, I found tons of people talking about it for years in various forums. Solutions seemed to mostly be "use an ad blocker". Though, some talked about turning "ads personalization" off then on again to reset it to fix this (no idea what that does). e.g. https://support.google.com/ads/answer/2662922?hl=e...
Possibly, AdSense will discover it automatically somehow and kill the bad ad.
Thanks for letting me know. I'm sorry I don't have any easy solution.