Killer Sudoku — Quick rules

Goal of the game

Fill the grid with the digits 1–9. As in standard Sudoku, each digit appears once in every row, column and 3×3 box. On top of that, the digits in each cage must add up exactly to the target shown. Every DIGIGMA puzzle has a logical solution, so you never need to guess.

Rules

  • Standard Sudoku rules still apply: 1–9 appear once in every row, column and 3×3 box.
  • The digits in each cage must add up exactly to the number shown.
  • A digit cannot repeat within the same cage.

For example, a two-cell cage totalling 8 cannot be 4 + 4: both digits in a cage must be different.

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