The Times Killer Su Doku Book 7: 150 Challenging Puzzles from the Times (the Times Su Doku)

Download or read book The Times Killer Su Doku Book 7: 150 Challenging Puzzles from the Times (the Times Su Doku) written by The Times Mind Games and published by Times Books. This book was released on 2011-03-31 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt: For those who like to live dangerously and push beyond their mental comfort zone, the toughest collection yet has an added math challenge taking Su Doku to an even deadlier level of difficulty The seventh and toughest addition to the successful Times Killer Su Doku series will test puzzlers' skills to the limit, using the same 9x9 grid as normal Su Doku but with an added mathematical challenge. The aim is not only to complete every row, column, and cube so that it contains the digits one through nine, it is also necessary to ensure that the outlined cubes add up to the same number as well. With 150 new "tough" and "deadly killer" puzzles, there is no chance to ease in with easy puzzles.