Sudoku
Killer Sudoku
For the extreme Sudoku lovers: Killer Sudoku. Normal Sudoku rules + 1 extra rule: the sum of the cells in a cage must equal the total given for the cage and each digit in the cage must be unique. Tip: the total value of all numbers in a 3x3 box is always 45.
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Current rating: 4.4 out of 231 votes.
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339.524
Killer Sudoku has been played 339.524 times.
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