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

# Column

A vertical line containing 9 cells.

Together, the **columns** form one of the 3 main divisions of the grid.

Each column is also a house, because it must contain digits 1 through 9.

Columns are usually numbered from **1** to **9** from left to right.

In solving techniques which affect either rows or columns, the term line is used to represent a house that can either be a row or a column.

## Related Terms

- Belongs to
- grid | tower | division

- Subtype of
- house | line

- Contains
- 9 cells | 3 intersections

This page was last modified 00:40, 30 October 2006.