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

# Naked Quad

A **Naked Quad** is a Naked Subset of size 4.

It is formed by 4 cells that have candidates for only 4 digits and are collocated in the same house.

## Example

The following example shows a Naked Quad in the middle box.

This page was last modified 18:27, 22 January 2007.