Download or read book The Pocket Idiot's Guide to Extreme Sudoku written by Matt Gaffney and published by Alpha Books. This book was released on 2006-05-30 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: More puzzles than ever … Here are more puzzles to challenge players of the hottest puzzle craze sweeping the nation. Featuring the most extreme brain stumpers of all, this is the newest entry into this red-hot market, offering 240 of the toughest Sudoku puzzles players will find anywhere. Matt Gaffney—known throughout the gaming community as a champion crossword puzzler and creator—has taken this unique book to new heights of difficulty, complete with strategies and puzzle-busting hints, plus a full array of variants on the game. • Expert gaming author and world class puzzler • 240 Mensa-level puzzles that offer the ultimate mental challenge • Complete overview and sample of the latest variants, such as the circular and super grid puzzles • More instructions, tips, and strategies than any other competing book • Convenient, slim trim size for easy portability