The playing field is a grid with 9x9 cells, divided into smaller grids with a side of 3 cells. Thus, the entire playing field consists of 81 cells. At the beginning of the game, there are already some numbers in them (from 1 to 9). The player is required to fill in the free cells with numbers from 1 to 9 so that in each row, in each column and in each small 3 ×3 square, each digit would occur only once.
There are multiple levels of difficulty you can choose. Beware of mistakes you can make.
Click on the cell you want to fill and then click on a number you want there. You can click on the "Notes" button to mark possible numbers without placing them.
Frequently Asked Questions
How to play Sudoku?
Sudoku is a board game that can be played directly in your browser. Simply wait for the game to load, then follow the on-screen instructions to start playing. Most games use keyboard arrows and spacebar or mouse controls.
Is Sudoku free to play?
Yes, all games on PlayNoDownload are completely free to play. There are no hidden fees or subscriptions required.
Can I save my game progress?
Most browser games automatically save your progress using local storage in your browser. For the best experience, we recommend playing on the same device and browser to maintain your progress.
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