What is the history of killer sudoku?
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Answer:
History. Killer sudoku puzzles were already an established variant of sudoku in Japan by the mid 1990s, where they were known as "samunamupure." The name stemmed from a Japanized form of the English words "sum number place." Killer sudokus were introduced to most of the English-speaking world by The Times in 2005.
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Can killer sudoku have multiple solutions?
Answer: A Sudoku puzzle can have more than one solution, but in this case the kind of logical reasoning we described while discussing solving strategies may fall short. There are examples of rank-3 Sudoku puzzles with 17 givens that are well-formed.
2024-03-15 23:34:27
Can digits repeat in a killer sudoku cage?
Answer: Make sure the cells can be added up to the sum of its cage. Numbers cannot repeat within cages.
2024-03-15 15:54:01
Can numbers repeat in a killer sudoku cage?
Answer: Numbers cannot repeat within cages. Numbers cannot repeat within a single row, column or 3x3 region.
2024-02-13 17:02:05
Is killer sudoku easier or harder?
Answer: Despite the name, the simpler killer sudokus can be easier to solve than regular sudokus, depending on the solver's skill at mental arithmetic; the hardest ones, however, can take hours to solve.
2024-01-01 14:31:45
How many levels are in killer sudoku?
Answer: A Year of Killer Sudoku — 365 Puzzles, 5 Levels of Difficulty: No 1.
2023-03-27 10:13:10