There’s a much simpler and more effective way. I met someone who had done that work for a chess company, done some ML to detect cheats, and they were surprised

There’s a much simpler and more effective way. I met someone who had done that work for a chess company, done some ML to detect cheats, and they were surprised how easy it was to detect changes.I’m not going to post the solution but you might be able to guess if you think through the feature space. It’s obvious in retrospect.