Sudoku classic
Everyone
In-Game Purchases
Optimize your spare time utilizing Sudoku classic. This masterpiece by Quarzo Apps redefines APPzone standards. Get the best experience and explore Puzzle, Logic, Casual, Single player, Abstract, Offline.
Step By Step To Install Sudoku classic
A classic game!
To solve the game you must complete the puzzle by filling in all the numbers (from 1 to 9) so that each digit does not repeat in the same row, column or block.
This app will become your favorite Sudoku game.
WAIT!, THERE'S MORE!
Includes cool color themes, with a night mode theme.
You are able to change the letter font.
Win trophies by solving each daily sudokus.
Customize the game UI depending on your expertise
【 HIGHLIGHTS 】
✔ Minimalist, simple and fun game.
✔ 7 difficulty levels
✔ Many customizable aids
✔ Full game is free, with very few ads (no ads while playing)
✔ Exercise your brain and relax solving suokus!
✔ Beautiful and simple user interface (portrait and landscape)
✔ Compatible with all devices including tablets
✔ Includes sounds (can be disabled) and images in HD
✔ Infinite Sudoku generator
✔ No intrusive permissions
【 CUSTOMIZATION 】
You can customize some features of the game (from the settings option):
* Play or mute the sounds.
* Language.
* Animations
* Device orientation.
* Full screen or not
【 DIFFICULTY LEVELS 】
◉ 1 - Very easy : Suited for people learning how to solve Sudoku.
◉ 2 - Easy : Recent studies show that playing Sudoku helps elderly people memory. Just do it!
◉ 3 - Intermediate : You will be able to finish Intermediate level games using basic techniques: Hidden singles and Naked singles.
◉ 4 - Hard : This puzzles need to use some intermediate techniques: Pointing pairs, Naked pairs, etc.
◉ 5 - Expert : This are intended for advanced players that can combine many intermediate strategies.
◉ 6 - Extreme : To solve this grade puzzles you'll need to use some advanced strategies: X-Wing, Y-Wing, Swordfish, etc.
◉ 7 - Nightmare : Only pro players will be able to finish this games. This is a real challenge. Maybe you'll need some luck to solve it :)
All Sudoku have only ONE possible solution.
◉ 8 - Grandmaster: This are considered the hardest sudoku to complete. Will you be able to succeed?
All sudokus have only ONE possible solution.
Just one more thing...
ENJOY !!!
--------------------
Any suggestion or bug report is welcome. Please, before writing a bad review contact us by email at [email protected]
To solve the game you must complete the puzzle by filling in all the numbers (from 1 to 9) so that each digit does not repeat in the same row, column or block.
This app will become your favorite Sudoku game.
WAIT!, THERE'S MORE!
Includes cool color themes, with a night mode theme.
You are able to change the letter font.
Win trophies by solving each daily sudokus.
Customize the game UI depending on your expertise
【 HIGHLIGHTS 】
✔ Minimalist, simple and fun game.
✔ 7 difficulty levels
✔ Many customizable aids
✔ Full game is free, with very few ads (no ads while playing)
✔ Exercise your brain and relax solving suokus!
✔ Beautiful and simple user interface (portrait and landscape)
✔ Compatible with all devices including tablets
✔ Includes sounds (can be disabled) and images in HD
✔ Infinite Sudoku generator
✔ No intrusive permissions
【 CUSTOMIZATION 】
You can customize some features of the game (from the settings option):
* Play or mute the sounds.
* Language.
* Animations
* Device orientation.
* Full screen or not
【 DIFFICULTY LEVELS 】
◉ 1 - Very easy : Suited for people learning how to solve Sudoku.
◉ 2 - Easy : Recent studies show that playing Sudoku helps elderly people memory. Just do it!
◉ 3 - Intermediate : You will be able to finish Intermediate level games using basic techniques: Hidden singles and Naked singles.
◉ 4 - Hard : This puzzles need to use some intermediate techniques: Pointing pairs, Naked pairs, etc.
◉ 5 - Expert : This are intended for advanced players that can combine many intermediate strategies.
◉ 6 - Extreme : To solve this grade puzzles you'll need to use some advanced strategies: X-Wing, Y-Wing, Swordfish, etc.
◉ 7 - Nightmare : Only pro players will be able to finish this games. This is a real challenge. Maybe you'll need some luck to solve it :)
All Sudoku have only ONE possible solution.
◉ 8 - Grandmaster: This are considered the hardest sudoku to complete. Will you be able to succeed?
All sudokus have only ONE possible solution.
Just one more thing...
ENJOY !!!
--------------------
Any suggestion or bug report is welcome. Please, before writing a bad review contact us by email at [email protected]
Play the classic Sudoku and train your logic brain.
Updated on
Aug 4, 2026
Available on
Android,
Data safety
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Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
- This app may share these data types with third partiesApp activity, App info and performance, and Device or other IDs
- This app may collect these data typesApp activity, App info and performance, and Device or other IDs
- Data is encrypted in transit
- Data can’t be deleted
Ratings and reviews
7.6K reviews
Tyler G
- Flag inappropriate
January 28, 2025
I've been playing one "Nightmare" mode game for multiple years. I've restarted the same game multiple times. I'm very well versed at various forms of Sudoku. I am confident in saying at this point that the puzzle this app generated is impossible. Not just very difficult. No, it's literally not possible to solve. Don't use this app if you want puzzles that can be solved.
19 people found this review helpful
Kaushalendra Jha
- Flag inappropriate
August 15, 2026
very good.look is good. Font is good.
Quarzo Apps
August 15, 2026
Hi there! Thanks for your great review! We're thrilled that you enjoy the design and font. 😊 Our aim is to provide a smooth and engaging experience. Feel free to explore other Quarzo Apps games for more fun experiences! Kind regards, Pilar from Quarzo Apps
A Google user
- Flag inappropriate
- Show review history
April 20, 2020
It just works. The only time I got mad at it was when I hit the hint button on accident, but there's a menu option to turn them off. I suspect that one of the puzzles on the diabolical difficulty is actually impossible, but either it is impossible and the developer put it in there to mess with us, or it is possible and I'll have to get better to figure it out. Either way I like it.
288 people found this review helpful
What’s new
♥ Thank you for your support and comments! +1 000 000 Downloads !!!
🔥 8 Difficulty Levels!
📜 Sudoku history.
✏ Editor and share!
🏆 Solve the daily Sudoku and win trophies.
🧠 Train your brain.
🤖 Infinite puzzle generator.
🛠 Full customizable app
Any suggestion or bug report is welcome.
Please, before writing a bad review contact us by email at [email protected]
🔥 8 Difficulty Levels!
📜 Sudoku history.
✏ Editor and share!
🏆 Solve the daily Sudoku and win trophies.
🧠 Train your brain.
🤖 Infinite puzzle generator.
🛠 Full customizable app
Any suggestion or bug report is welcome.
Please, before writing a bad review contact us by email at [email protected]
