Mirrored from Sudopedia, the Free Sudoku Reference Guide
Rule
The one rule of Sudoku. Complete the grid in such a way that each row, column and box contain digits 1 through 9.
This rule applies to standard Sudoku. Several Sudoku Variations have alternative rules, which may mention additional constraints or other alterations.
Every constraint is derived from the rule. In turn, solving techniques are derived from these constraints.
See also
This page was last modified 18:22, 11 October 2007.
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