[Announcer] Four, three, two, one, KenKen. in newspapers of the world. I learned about KenKen through Games Magazine. In a graduate school class at Brooklyn College. Randomly, in maybe a airplane ...

You are powerless to stop KenKen. Perhaps the new Japanese arithmo-logical challenge, which debuted in the New York Times on Feb. 8, will burrow into your brain on account of a significant other, who ...