Many solvers love KenKen not just for the intellectual challenge or the sheer fun of solving, but because these puzzles help them attain an almost Zen-like state of mental relaxation. KenKen reminds solvers that every number has it's place and every problem has an answer. This latest collection contains 100 KenKen puzzles. The puzzles range in size from 3x3 grids to 6x6 grids and include "How to Solve" instructions and an introduction by puzzlemaster Will Shortz. Features: * 100 easy to hard puzzles * Inexpensive, convenient package* Introduction by Will Shortz