New York Post Bathroom Sudoku: The Official Utterly Addictive Number-Placing Puzzle

Beware of pale imitations. These are the original and official Su Doku puzzles by Wayne Gould--New York Post's Su Doku puzzle master and one of Time magazine's Most Influential People. These 100 puzzles--from easy to fiendishly difficult--come with a warning: They are seriously addictive. You don't need to be a mathematical genius to solve these puzzles; it is simply a question of logic and a little patience.