The Ultimate Sudoku Challenge

If you haven't yet tried sudoku, you're missing out on the most addictive, fun puzzle sensation since the Rubik's Cube. So pick up a pencil, get set, and solve away!

Features:
- The ''wordless crossword puzzles'' that are taking the world by storm!
- 100 top-quality sudoku from easy to hard edited by Will Shortz
- Introduction and solving tips from legendary puzzlemaster and editor Will Shortz