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    By: Sudoku Syndication

    $14.99
     
     
    ISBN
    9780007305858
    Date Released
    Binding
    Paperback
    Pages
    256
     

    Out of Print

    Description
    The puzzles use the same 9x9 grid as 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 1-9‚ it is also necessary to ensure that the outlined cubes add up to the same number.

    With 150 new Tough and Deadly Killer Su Doku puzzles‚ there is no chance to ease yourself in with easy puzzles. For those who like to live dangerously and push beyond their mental comfort zone‚ steel yourself for The Times' toughest collection yet.

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