# House

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A **house** is a group of 9 cells which must contain digits **1** through **9**.

In a standard Sudoku, a house can either be a row, a column, or a box. In Sudoku Variations, which differ from the standard 9x9 grid, there can be alternative or additional houses.

## Related Terms

- Aliases
- cell set | constraint | group | sector | set | unit

- Contains
- cells