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

This volume features 200 of the most devious puzzles ever created Features: - 200 mind-melting puzzles - Edited by legendary New York Times crossword editor Wil

Tame the wildest puzzle around! Sudoku is the puzzle craze that's sweeping the country. Now you can get in on the action and become a master sudoku solver! Will

The hottest puzzle craze in the nation heats up with this new collection of 150 Sudoku puzzles from the #1 name in American puzzling. Original.

The biggest, best collection of KenKen puzzles ever published!