Will Shortz Presents Puzzle-a-Day: Hard KenKen: 365 Challenging Logic Puzzles That Make You Smarter

Will Shortz PresentsPocket Puzzle a Day: KenKen is the perfect travel companion. It's stylish and compact design makes it easy to bring along on any trip whether it's your daily commute or holiday vacation. The pad allows you to access puzzles easily and the hardcover proves a sturdy solving surface.

Features:
-365 challenging KenKen puzzles
-Easy tear-off pad
-Edited by Will Shortz