Mirrored from **Sudopedia**, the Free Sudoku Reference Guide

# Naked Pair

A **Naked Pair** is a Naked Subset of size 2.

It is formed by 2 cells that have candidates for only 2 digits and are collocated in the same house.

## How it works

Pay attention to the cells **r1c7** and **r3c7** (highlighted in yellow) in the 7th column, which only have the two digits 5 and 6 as candidates. Therefore, the digits 5 and 6 must go into these two cells. This means that 5 and 6 can be eliminated in the remaining cells in the 7th column, so **r6c7<>5** and **r7c7<>6**.

Incidentally, the **r1c7** and **r3c7** are also collocated in the same box, which is the 3rd one. Using the same logic leads to **r1c9<>5**, **r1c9<>6** and **r3c8<>6**.

## See also

This page was last modified 20:12, 9 June 2007.