Once you've mastered the easy puzzles it's time to take it up a notch Includes: -200 medium-level puzzles -Perfect portable size -Edited by Will Shortz

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.

"New York Times" crossword puzzle editor Will Shortz delivers another collection of 150 simple, easy-to-complete Sudoku puzzles. Original.

"New York Times" crossword puzzle editor Will Shortz delivers another collection of 150 simple, easy-to-complete Sudoku 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