The KenKen Craze!
KenKen is the puzzle phenomenon sweeping the world! Fun, fast and highly addictive, even educational, KenKen is a great way to enjoy yourself and exercise your brain at the same time!
Famous for his ability to creatively teach kids math in Japan and also for his entertaining puzzles, Tetsuya Miyamoto invents KenKen in 2004 and the worldwide craze begins!
Source: The Game Website.