Naked Single

The Naked Single is categorized as a solving technique but you can hardly call it a technique. A naked single is that what remains after you have applied your solving techniques, by eliminating other candidates.

A naked single is the last remaining candidate in a cell. Alternative terms are Forced Digit and Sole Candidate.

The easiest way to find naked singles in the grid is using pencilmarks. Cells with a single pencilmark are easy to spot. Without pencilmarks, you need to inspect the peers of the cell and see if there is only a single digit missing in the peers. You need a good short-term memory to do it this way, but many players prefer to solve easy Sudokus without pencilmarks.

Most players do not mention the discovery of singles to other players. When a Sudoku can be solved with singles only, the entire puzzle is not worth a discussion.


The following Sudoku has two Naked Singles for digit 8.

Naked Single , How to solve sudoku puzzles - Solving sudoku strategy

Sudoku Games

Free Sudoku Script for Your Website

Sudoku strategies

Printable Sudoku

Sudoku Links

sudoku cool sudoku schwer sudoku gratuit sudoku gratis 数独 数独 Судоку онлайн бесплатно 数独 今日数独 武士数独