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Sudoku.com - Classic Sudoku

About this game

Sudoku free puzzle is a popular classic number game to train your brain. Solve daily sudoku and have fun! Thousands of number games to explore. Install the sudoku free app to start now!

Classic sudoku for beginners and advanced players. Whether you'd like to relax or keep your mind active – pass the time in a pleasant way with sudoku free puzzle game! Get a small stimulating break or clear your head! Take your favorite number game with you wherever you go. Sudoku is available offline. Playing this free sudoku puzzle on mobile is as good as using a real pencil and paper.

Sudoku.com has 10,000+ classic number games and comes in six difficulty levels: fast, easy sudoku, medium, hard sudoku, expert, and giant! Play easy sudoku to exercise your brain, logical thinking, and memory, or try medium and hard sudoku to give your mind a real workout.

Our free sudoku puzzle games have some features that make this number puzzle easier for you: hints, auto-check, and highlight duplicates. What's more, in our app each classic sudoku puzzle game has one solution. You will find all you need whether you are solving your first sudoku puzzle, or you've progressed to expert difficulty. Choose any level you like!

Features:

✓ Complete Daily Sudoku Challenges to get unique trophies
✓ Take part in Seasonal Events and win unique medals by solving sudoku puzzles
✓ Challenge yourself by figuring out your mistakes, or enable Auto-Check to see your mistakes as you go
✓ Turn on Notes ✍ to make notes like you would on paper. Each time you fill in a cell on the sudoku puzzle grid, your notes are automatically updated!
✓ Highlight duplicates to avoid repeating numbers in a row, column, and block
✓ Hints can guide you through the points when you are stuck on sudoku free puzzles

More features:

- Statistics. Track your progress for each difficulty level of sudoku puzzle: analyze your best time and other achievements
- Unlimited Undos. Made a mistake? Or accidentally have the same numbers match in a row while solving a sudoku puzzle game? Just undo it quickly!
- Auto-save. If you leave a game with numbers unfinished, it will be saved. Continue playing your sudoku puzzle game anytime
- Highlighting of a row, column, and box related to the selected cell
- Eraser. Get rid of the mistakes in the free sudoku games

Highlights:

• More than 10,000 classic well-formed sudoku puzzle games with numbers
• 9x9 grid
• 6 perfectly balanced levels of difficulty. This free sudoku puzzle is suitable for both sudoku beginners and advanced evil sudoku players! Play fast, easy and medium levels to exercise your brain. Choose hard sudoku to improve your skills and try an expert or giant puzzle with numbers for evil challenges.
• Supports both phones and tablets
• Portrait and landscape mode for tablets
• Simple and intuitive design

Daily sudoku is the best way to start your day! 1 or 2 classic sudoku puzzles will help you to wake up, make your brain work, and help you to be ready for a productive working day. Download this classic number game and play sudoku free puzzles offline.

If you are an excellent sudoku solver, welcome to our sudoku kingdom! Here you can spend your free time keeping your mind sharp with classic number brain teasers. Regular game practice will help you become a real sudoku master who quickly deals even with the most difficult web puzzles in a short time.

Challenge your brain with the classic sudoku anywhere, anytime!

Terms of Use:
https://easybrain.com/terms

Privacy Policy:
https://easybrain.com/privacy

User Reviews

Mark Sheets
Mark Sheets
7/25/2025

"Gameplay is fine, and they have plenty of challenging puzzles. The game loses stars due to occasionally interrupting gameplay for ads. I understand that the developers make money from ads, and having one pop up at the beginning or end (but not both) of a game is fine. Making you stop playing, usually disrupting concentration and flow, is not acceptable. I guess I have to continue my search for a good Sudoku game."

William Bruchert
William Bruchert
8/11/2025

"The game itself is fine as far as Sudoku goes, but you get interrupted with ads constantly as a "reward" when you clear a digit. Not only are the ads long and pervasive, but according to my carrier the app used over 400MB of data in just 3 days, presumably from those ads. That is simply unacceptable if you don't have unlimited data (which until 3 days ago, I didn't, and explains why my bill was so high until switching plans). last I looked it was $10 to remove ads, now it's $15. Crazy."

T G
T G
12/2/2025

"The interface is very good. However, the game has some type of bug with notes. In certain scenarios, it will not properly remove notes when solving cells. The game will leave numbers that it should remove in a row or column. Or the game will remove numbers that it should not. It makes the use of the notes unreliable and those are needed to solve the hardest puzzles and levels."

Dan Eastwood
Dan Eastwood
11/30/2025

"It's an OK Sudoku app. The interface can be finicky, especially the pencil, which tends to stick off when I think I have turned it on, leading to mistakes. It's also hard to see a mistake in night mode, leading to more mistakes. These are small things which the Dev could easily improve on, but they haven't."

Jason Espinal
Jason Espinal
11/28/2025

"Fun game to play on a daily basis. Highly recommend just buying it or getting a Play Store Monthly Subscription if you don't have one because the ads in the free version ruin the game. I understand they need to make revenue but the amount of time you'll spend trying to get out of ads is NOT WORTH my time. Free version will also drain your phone's battery and use a lot of data. Other than that game is a solid Sudoku game with daily and weekly challenges."

4.6
(2,279,343 ratings)