Features a handy-sized format, so that puzzle lovers can play this game wherever the mood takes them.

Are you experienced? These are the hardest KenKen for super-solvers only!

Are you tough enough? Tkae on this collection of 200 devilishly difficult KenKen puzzles!

Get ready for the biggest, baddest KenKen puzzles yet from the New York Times! This New York Times edition of KenKen contains 300 5x5 and 7x7 size puzzles with "How to Solve" instructions and an introduction by puzzlemaster Will Shortz. The puzzles use all four mathematical operations and increase in difficulty like they do in the Times.

Puzzle fans have fallen for KenKen and now crave more challenging puzzles. The puzzles in this edition range in size from 6x6 grids to 9x9 grids and for the first time there will also be grids without application symbols. It's the ultimate KenKen challenge! This edition will also include "How to Solve" instructions and an introduction by puzzlemaster Will Shortz. Includes: *100 very challenging KenKen puzzles *Puzzles range in size from 6x6 grids to mind-bending 9x9 grids * Introduction and solving instructions by puzzlemaster Will Shortz

From the creator of the hit web series "Enter The Dojo" with over 50 million YouTube views comes the best self defense book ever written! 11th Degree Black Belt Master Ken explains his most famous techniques such as "The Hurticane", "The Thrust of Freedom" and, of course, the dreaded "Kill Face"! This book is a must-have for anyone who aspires to learn from the most dangerous martial artist in the world: Master Ken! Learn more about him at www.youtube.com/enterthedojoshow

This monster edition of KenKen contains 300 3x3 to 9x9 size puzzles with "How to Solve" instructions and an introduction by puzzlemaster Will Shortz. The puzzles use all four mathematical operations and increase in difficulty. Features: · 300 easy-to-hard sudoku · Edited by legendary New York Times crossword editor Will Shortz · Big grids with lots of space for easy solving