Naked triple

A naked triple is three cells in a unit whose combined candidates total exactly three digits. The three cells don't each need to have all three candidates — one cell might be {2, 5}, another {2, 7}, and a third {5, 7}. What matters is that no fourth digit appears across the three cells.

Like naked pairs, naked triples allow you to remove those three digits from every other cell in the unit.

When to look for it

Naked triples are powerful but harder to spot. Look for clusters of cells with 2–3 candidates where the candidate sets overlap heavily.

How to apply it

1. Find three cells in the same unit, each with 2 or 3 candidates.
2. Check whether their combined candidates total exactly three digits.
3. Eliminate those three digits from every other cell in the unit.

Example