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Killer Sudoku
Sudoku where cage sums replace the given digits
Rules
Sudoku without given digits: the grid is split into dashed cages, and the number in a cage's corner is the sum of its digits. Fill the cells so that every row, column and bold box holds each digit exactly once, and digits in a cage do not repeat and add up to its sum. Tap a cell, then a digit; the same digit again erases. Digits a cage can never make are disabled on the pad.
- Board sizes
- 6×6 · 9×9
- Difficulty
- Easy · Medium · Hard · Expert
- Daily set
- yes, in rotation
- Hints
- named techniques