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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 F, at F9, a pair of [2,6][2,6] arises. Hence, [2 or 6] can't be entered at D5, confirming that a 7 is in this cell.

In the example below, too, a [2,3] pair arises between G1 and I1, 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 I2 and at the same time a [1] is confirmed for H2.

## Naked Triples

Lets examine row F. Between F1[1,2], F4[1,2,6], and F5[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 F2 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.