It should be easy enough, to train AI to catch the most obvious of cheaters, in the Daily Challenge. Isn't it interesting that the number of 25K scores, even by players who have thousands of games on their record, went down by a lot, after the replay option on everyone appeared? Even good players cheat. But AI can learn to catch them. The obvious ones, with 0 steps and 25K after spending less than a minute on each round, are so obviously cheating that they should be banned immediately. No question. And I saw very good players that probably weren't aware that the option was there, cheat, rampantly. It is very frustrating, that so many cheats, and some are very good at it. No obvious close to 5K rounds, or they only cheat when they are in danger of losing. Without improving anti-cheating tools, the number will rise. So to be ahead of the curve, is important.