You challenge a kid with a simple sum game in a fair way. With the built-in intellegence enhancer, a smart kid can play the game as easy as you do. A mathematics doctor cannot win a kid who uses the enhancer and choose wisely. And yes, the game trains the kid too. The kid is required to know the tic-tac-toe game and plays while waiting for you to count your fingers. Be advised to train your brain first with the free "Smart Kid Challenger Training Kit" if you want to stay close to or level with a kid.
