Sudoku Sova

Sudoku technique · First needed at: Hard

Naked triple

Three cells share the same three options — clear those numbers from the rest of the group.

An example from a real puzzle

6892691369736895418943679126989512917817891789529428923937868953462897181286789689123793892378945238784237516938267967951336781367436748196719255183679243936779
  • Where the deduction happens
  • The cells that make the pattern
  • Candidates it removes

How to spot it

  1. Find three cells in one group whose candidates, taken together, are just three numbers — each cell may have two or three of them.
  2. Remove those three numbers from the rest of the group.

Why it works

Three cells limited to three numbers must use all three, leaving none of them for any other cell in the group.

Sova teaches Naked triple inside the game — and gives you puzzles to practise it on. Free on iPhone and iPad.

Get Sudoku Sova