Naked Triple

Level: Intermediate

When three cells share a pool of three candidates, remove those numbers from the rest of the unit.

A Naked Triple occurs when three cells in a unit only take values from a pool of three candidates. Each cell doesn't need to contain all three candidates (e.g., {2,5}, {5,8}, {2,8}).

Since these three numbers must be distributed among the three cells, you can eliminate all three numbers from every other cell in the unit.

It's an extension of the Naked Pair, and you can spot it by paying close attention to candidate combinations.

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