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Killer Sudoku: The Lethally Addictive Sudoku Variant
Killer Sudoku The Lethally Addictive Sudoku Variant Author:Conceptis Puzzles Sudoku for the brave of heart! Sharp-minded solvers willing to venture into dangerous puzzle territory will find satisfaction navigating these killer sudoku. Each one looks like a regular sudoku, but with a challenging twist: there are also additional boxes surrounding sets of squares. Those boxes contain tiny numbers that tell you the sum of th... more »e digits inside the box. It's a brain-stretching variation that will delight sudoku fans everywhere.« less