Will Shortz Presents Kenken to Exercise Your Brain: 100 Challenging Logic Puzzles That Make You Smarter, Paperback

KenKen is known around the world as a fun and wildly addictive game but did you know that it was originally created as a teaching tool to hone math, logic, and reasoning skills? So grab a pencil and and enjoy this fun way to strengthen your mind

*Refresh and renew the "little grey cells" with 100 easy to hard KenKen puzzles
*Edited by legendary New York Times puzzlemaster Will Shortz
*Big grids with lots of space for easy solving

TETSUYA MIYAMOTO, the creator of KenKen, is a math teacher who runs a unique mathematics class for grade school children in Japan where he practices "The Art of Teaching Without Teaching." His teaching method and use of KenKen in his classroom has proven extremely successful. His students regularly go on to be accepted at the most prestigious schools in Tokyo.

WILL SHORTZ has been the crossword puzzle editor of The New York Times since 1993. He is also the puzzlemaster on NPR's Weekend Edition Sunday and is founder and director of the annual American Crossword Puzzle Tournament. He has edited countless books of crossword puzzles, Sudoku, KenKen, and all manner of brain-busters.