Do you have what it takes to be a Su Doku Grand Master? Su Doku, "the crosswords without words," come 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. Here is a collection of 100 new puzzles arranged according to difficulty, starting with the easiest and ending with the fiendishly difficult.
I've worked my way through at least 20 books of Sudoku puzzles, but now I only buy Wayne Gould New York Post puzzles. Will Shortz or Wayne Gould -- the puzzles are basically the same. But the Wayne Gould books are a nice size and have good, smooth paper -- much nicer to work on with a mechanical pencil.
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