Naked Triple

This technique is the same as the “Naked Pair,” but is based on three candidates instead of two


  1. Look at this example
Naked Triple Sudoku example

  1. The highlighted cells contain only the values 1, 5, and 8
Naked triple highlighted

  1. That means 1, 5, and 8 can’t appear in other cells of the unit and can be deleted
Naked triple applied to a Sudoku grid

  1. Naked Triple can also be applied in a column or row
Naked triple Sudoku technique in a row