When Arthur Chu got the call saying he'd been selected to go on Jeopardy, his first move was thorough and decisive: He went to Google and typed in "jeopardy strategy."

You think you know how to play Jeopardy!, don't you? Answer in the form of a question, study your butt off, capitalize on anything that feels trendy, and press the buzzer when Trebek stops yapping, not before. It's worked for hundreds of people. But a new champion is showing that there's a better way, using game…