Will Shortz Presents Terrifying KenKen

Are you up for the challenge? This collection of KenKen has the puzzles to put your solving skills to the test. So grab a pencil and see if you're a KenKen master.

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