Killer Sudoku Puzzle Book
If you like Sudoku but want an extra challenge then you will love Killer Sudoku.
Killer Soduku (also known as killer su doku, sumdoku, sum doku, sumoku, addoku, or samunamupure) is like regular Sudoku, however, you must also place the numbers so that each dashed-line 'cage' adds up to the totals written in the corner of the cage.
This Killer Sudoku Puzzle Book is a fun way for teens or adults to sharpen their minds and test their logic. Including 156 Puzzles of varying difficulty to keep you entertained for hours.
Book Features:
Puzzle King Publishing: Puzzle Books for Everyone