Sudoku Tutorial
Naked Triple

A naked triple occurs when three cells in a house contain any combination
of only three candidates.   Those three candidates can be present in other
cells in the house but the three cells can contain only those three candidates.

Those three candidates can then be eliminated from the remaining cells
in the house.

nakedsingle.jpg

As it turns out, there is also a hidden triple in that same row which will
cause the same eliminations.  

Click here for more information on naked vs hidden techniques

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