Will Shortz Presents the Puzzle Doctor: KenKen Mania 150 Easy to Hard Logic Puzzles That Make You Smarter

The country is in the grips of KenKen Mania! Luckily, the next title in our "Puzzle Doctor Presents" series is sure to satisfy the most addicted KenKen fan. * Contains 150 puzzles ranging from easy to hard * Puzzles range in size from 3x3 to 9x9 grids * Introduction by Will Shortz

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.