X-Factor Sudoku

joe-ks.com

$9.75 USD 

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Catch the latest wave in Sudoku-mania! These 275 X-Factor SuDoku puzzles are for the diagonally challenged, in 6 difficulty levels from Simple to Fiendish

X-Factor puzzles follow the same rules as for regular SuDoku puzzles PLUS the two shaded diagonal regions also contain the numbers 1 to 9 once only.

Each X-Factor puzzle is joined to a previous and following puzzle through common puzzle solution numbers. As well, this book is an extension of "The World's Longest SuDoku Puzzle", now at 1,271 puzzles in length.

Includes strategy guide for solving SuDoku puzzles, and tips on how to find X-Factor numbers. And for those who still can't get enough, try solving 275 riddles!

Joe Defries is a current 2-time Guinness TM World Record Holder, and is the joe in suJoku.com & joe-ks.com (the Largest Source of Internet Humour).

Format: Paperback
Size: 8 x 5 inches
Pages: 328
ISBN: 9781440122026
Published: Feb-2009