will shortz presents terrifying kenken: 100 very hard logic puzzles that make you smarter

There's no better way to unwind on your downtime than with a KenKen puzzle -or better yet, one hundred of them! So whether you're hitting the road or simple lounging in the backyard, your vacation begins the moment you pick up a pencil!

 

Includes:
*100 easy to challenging KenKen puzzles
*Puzzles range in size from simple 3x3 grids to mind-bending 9x9 grids
* Introduction and solving instructions by puzzlemaster Will Shortz