Naked Triplet Walkthrough

A Naked Triplet is three cells in a unit whose candidates are drawn from the same three digits. Those digits are confined to those three cells and can be cleared from the rest of the unit.

Sudoku board with pencil-mark candidates before applying the Naked Triplet technique — Before — candidates pencilled in. There is a Naked Triplet in Row 9.

There is a Naked Triplet in Row 9. Applying the Naked Triplet eliminates 4 candidates (struck out in red below; any solved cells shown in green).

The same Sudoku board after the Naked Triplet technique eliminates 4 candidates — After applying the Naked Triplet.

Learn the Naked Triplet technique →Practice it on a real puzzle →