Need a pick-me-up? Who needs caffeine when you can jump start your brain with Will Shortz sudoku! People all over the world can't get enough of this delightful number puzzle. They're short, addictive and perfect for solving on that daily coffee break!Features:· 100 easy to hard sudoku puzzles· Edited by legendary New York Times crossword editor Will Shortz· Big grids with lots of space for easy solving