Challenge yourself at home with word and number puzzles Push your nerve and logic to the absolute limit with this third collection of The Times Killer Su Doku. The puzzles use the same 9x9 grid as normal Su Doku but with an added mathmatical challenge. The aim is not only to complete every row, column and cube so that it contains the digits 1-9, it is also necessary to ensure that the outlined cubes add up to the same number. With 150 new Killer Su Doku puzzles, you can ease yourself in with the Moderate before taking the plunge and tackling the real killers: 20 Moderate 50 Tricky 50 Tough 30 Deadly For those who like to live dangerously and push beyond their mental comfort zone, steel yourself for The Times' toughest collection yet.
Format:Paperback
Language:English
ISBN:0007248008
ISBN13:9780007248001
Release Date:October 2006
Publisher:Collins Educational
Length:72 Pages
Weight:0.35 lbs.
Dimensions:0.6" x 5.0" x 8.0"
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