Sudoku
A logic combinatorial number game.
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Rules
The objective is to fill the grid with digits so that each column, each row, and each of the nine 3 × 3 subgrids contains all of the digits from 1 to 9.
A partially completed grid is presented. You can select the level of difficulty below the grid. The higher the difficulty level, the fewer digits will be present in the grid.
You can restart the current game by clicking the Reset button. To start a new game, click the Start button.