New York Post Easy Su Doku: The Official Utterly Addictive Number-Placing Puzzle, Paperback/Wayne Gould

200 New Puzzles -- From Easy to Just About Difficult Su Doku, "the crossword without words," comes with a warning: it is 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.