How to Beat Chimpanzees at the Game Rock Paper Scissors

Chimpanzees have recently been taught to play stone, paper scissors. They can learn it to the level of what a four-year-old would know. But they're really bad at learning from their mistakes. So if you were playing against them, i might think the knog would be stupid enough to go for paper again. Ai would probably lose. And should we ma on to r fine fa er?