Download or read book Extreme Sudoku for Dummies, Target One Spot Edition written by Andrew Heron and published by For Dummies. This book was released on 2007-11-19 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Complete a whopper 16x16 puzzle in 85 minutes or less Test your skills against some of the most difficult puzzles ever devised If you find yourself breezing through most Sudokus without breaking a sweat, then this guide is for you. You'll find some of the trickiest, most demanding puzzles ever published, including several unusual variations. If you're up for a challenge, pick up your pencil and prepare to be perplexed! Discover how to: Solve super-tough 9x9 puzzles Defeat 12x12 puzzles Triumph over 16x16 puzzles Vanquish jigsaw Sudoku Master circular puzzles