What is Sudoku Challenge?
Sudoku Challenge is a free puzzle game with math and sudoku elements that you can play online in your web browser on Gameziko. It needs no download, no install and no account. Best HTML5 sudoku game online.
How to play Sudoku Challenge
- Press "Play now" on the game screen. Sudoku Challenge loads inside the player; some games take up to 20 seconds and may show a short ad first.
- Click a cell and select the right number
- Use the full-screen button at the bottom right of the player for a bigger view, and press Esc to leave full screen.
Game details
| Category | Puzzle |
|---|---|
| Tags | math, sudoku |
| Controls | Mouse |
| Screen | Portrait (400 Ã 550) |
| Price | Free |
| Download or sign-up | Not needed |
| Distributed by | GameDistribution |
| Added to Gameziko | 30 September 2026 |
Description from the developer
Best HTML5 sudoku game online. Mutiple game modes and grid sizes for beginner to expert. Complete Sudoku tutorial and Sudoku user guide.
Sudoku Challenge: frequently asked questions
Is Sudoku Challenge free to play?
Yes. Sudoku Challenge is free to play on Gameziko, with no download and no account needed. Like most free web games, it is funded by ads, so it may show a short ad before or between rounds.
What are the controls in Sudoku Challenge?
The developer's instructions for Sudoku Challenge say: "Click a cell and select the right number"
Can I play Sudoku Challenge on a phone or tablet?
Sudoku Challenge is an HTML5 game, so it opens in modern mobile browsers as well as on a computer. Its controls were designed mainly for a mouse, so a computer usually gives the smoothest experience.
What games are similar to Sudoku Challenge?
If you like Sudoku Challenge, try Master Sudoku, Sudoku Puzzle Master and Sudo Tetroid Daily. They are puzzle games with similar themes, and you can find more in the Puzzle category on Gameziko.
Related guides
- 6 Best Free Puzzle Games to Play in Your Browser: Six free puzzle games to play online with no download, from 2048 and water sort to jigsaws, Minesweeper and sliding blocks, and who each one suits.
- 2048 Strategy: How to Reach the 2048 Tile: How 2048 works and the corner strategy that wins it: keep your biggest tile in a corner, build a chain, avoid one direction and recover from mistakes.
Good to know
Sudoku Challenge is made by an independent developer and delivered by GameDistribution, so Gameziko cannot change the game or recover lost progress. Any progress the game saves is kept in your browser on this device. If the game does not start, wait up to 20 seconds, allow ads for gameziko.com and try again, or report the game.