Mirrored from Sudopedia, the Free Sudoku Reference Guide
The subject of this Sudopedia. If you landed on this page by clicking the word Sudoku somewhere in another topic, you really need to read the introduction.
All other pages in this Sudopedia explain some aspect of Sudoku.
When no qualifications are given, the term Sudoku refers to a standard Sudoku with a 9x9 grid which must be completed by placing digits 1 through 9 in each row, column and box.