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# Solving Techniques 2 Naked Pairs/Triples/Quads

When a pair like [1,2] [1,2] exists, this technique allows for the elimination of [1,2] as candidates from other cells.

## Naked Pairs

The candidates for the center box are [2,6 and 7]. However, since there is already a 7 in row [6], at [R6C9], a pair of [2,6][2,6] arises. Hence, [2 or 6] can't be entered at [R4C5], confirming that a 7 is in this cell.

In the example below, too, a [2,3] pair arises between [R7C1] and [R9C1], in the lower left box. Hence, a 2 or 3 can't be in the other cells of this box. Therefore, a [6] goes in [R9C2] and at the same time a [1] is confirmed for [R8C2].

## Naked Triples

Lets examine row [6]. Between [R6C1]:[1,2], [R6C4]:[1,2,6], and [R6C5]:[2,6] a triple of 1, 2, 6 arises. In these cells, a 1, 2 or 6 will be entered, eliminating the possibility of having these numbers in other cells in the same row. Hence, an [8] at [R6C2] is confirmed.

{3,3,3} of [1,2,3][1,2,3][1,2,3] ,
{3,3,2} of [1,2,3][1,2,3][1,2],
{3,2,2} of [1,2,3][1,2][2,3],
and {2,2,2} of [1,2][2,3][1,3],

are all types of triples that will work out.