Brian left a comment at a previous blog entry about KenKen Puzzles.
In his comment Brain let’s us know that he is hooked on is KenKen. “I don’t think it’s possible that things like KenKen and crosswords don’t help your brain stay fit.”
Brain also made a 10 minute (!) video about how to start solving a 9×9 KenKen puzzle in which the operation signs are not given.
Brain, Thanks for sharing and Happy Puzzling!