Über die Autorin bzw. den Autor

Wayne Gould is the brains behind Su Doku. A former High Court judge in Hong Kong, he now spends his time developing the puzzle.

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The official utterly addictive number-placing puzzle

Give your brain a workout with these all newDifficult-level puzzles. Their addictive power willnot only entertain—Su Doku puzzles engageyour mind, improve your concentration, and helpyou stay mentally fit. There's no excuse for slowthinking and flabby wits when you can trainyour brain!

Beware of pale imitations. These are the original andofficial Su Doku puzzles by Wayne Gould—New York Post'sSu Doku puzzle master and one of Time magazine'sMost Influential People.

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New York Post Train Your Brain Su Doku: Difficult

HarperCollins Publishers, Inc.

Introduction

Since its launch in The Times in November 2004, Su Doku has become one of the most popular features of the paper and an international phenomenon. In a world where time is apparently a precious commodity, it is a testament to the addictive power of the puzzle that so many people can't wait to tackle it on a daily basis and with such intense concentration. The Times books, once they appeared in the bestseller lists, haven't budged since, showing their huge popularity with the book-buying public.

In this latest collection from Wayne Gould, flex your mental muscles with 150 all new Difficult-level Su Doku puzzles. Remember, these puzzles require no guesswork: logic will lead you to a single solution.

A valuable tip from Wayne Gould: "If you are writing too many pencil marks, it means you are not understanding how the puzzle works. You may be relying too much on mechanical procedures, without appreciating the underlying logic. If, in time, you can shake yourself free of written pencil marks, you will see the Su Doku puzzle for what it is—a thing of beauty!"

Excerpted from New York Post Train Your Brain Su Doku: Difficultby Wayne Gould Copyright © 2008 by Wayne Gould. Excerpted by permission.
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