Detecting Chess Cheats Taxes Computers
First time accepted submitter jeffrlamb writes "Cheating in live chess matches — fueled by powerful computer programs that play better than people do, as well as sophisticated communication technologies — is becoming a big problem for world championship chess. Kenneth W. Regan is attempting to construct a mathematical proof to see if someone cheated; the trouble is that so many variables and outliers must be taken into account. Modeling and factoring human behavior in competition turns out to be very difficult."
RTFA, you can use a computer to come up with a better move than you would have on your own.
Pocket Fritz 4 achieved a higher Elo rating than any human, and that was on a PocketPC in 2009. And mobile hardware has evolved at an amazing pace since then.