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Hidden Triples

Points.  A hidden triple is formed when all candidates of three digits in a house are restricted to only three cells. Each cell need not contain all three digits but the three cells together must contain all three. All candidates of other digits can be removed from the three cells.

 

 

Hidden Triple, Row.  In row 5, digits 5, 6, 7 are contained in only three cells. Therefore no other digits can be present in these three cells and the red candidates can be removed.

 

Hidden Triple, Column.  In column 5, digits 5, 6, and 7 are contained in only three cells. Therefore no other digits can be present in these three cells and the red candidates can be removed.