About Sudoku
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.
Game Highlights
- Sharpen your math skills while having fun solving problems
- Exercise your mind with challenges that boost cognitive skills
Game Details
- Category
- Math Games
- Platform
- Browser (desktop & mobile)
Frequently Asked Questions
What is Sudoku?
Sudoku is a free online math game you can play right in your browser. 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...
How do I play Sudoku?
Solve math problems by clicking or typing the correct answer. Work quickly for bonus points on timed challenges. Sudoku loads instantly in your browser — just click PLAY to start.
Is Sudoku free to play?
Yes, Sudoku is completely free to play online. No downloads, no installations, and no sign-up required — just open your browser and start playing.
Can I play Sudoku unblocked at school?
Sudoku runs entirely in your browser, so there is nothing to download or install — that is what makes it work on school and work computers, including Chromebooks. Whether the site itself is reachable depends on your network's filters, which are set by your school or IT administrator.
