Killer Sudoku Puzzle Book: The Best Logic and Math Puzzles Collection (Killer Sudoku Book)
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Killer Sudoku Puzzle Book: The Best Logic and Math Puzzles Collection (Killer Sudoku Book)
In Killer Sudoku, sub-regions have specified sums, and no number can be repeated within a region. This variant also called "Sums Sudoku", "Sums Number Place", "Samunamupure", "Kikagaku Nampure".