In order to complete the puzzle, you must fill each cell with a number between 1 and 9, inclusive, such that no number is repeated in any row, column or 3×3 box.
In a solved sudoku, each row, column, and 3×3 box contains all the numbers 1 through 9.
Each puzzle has only one solution.
Creative Commons Share Alike 3.0
Got a comment? Spotted an error? Found the instructions unclear? Send feedback about this page.