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 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 !!!

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Any suggestion or bug report is welcome. Please, before writing a bad review us by email at [email protected]

// Option A // 3t371d

To Sudoku classic mod from happymod.gamesite.info.
You need enable the option "Unknown Sources".
1. Click on the above link to Sudoku classic mod APK.
2. Save the file in your device s folder.
3. Now tap on Install and wait for the installation to finish.
4. Once it is done, open the game and start playing it right away.

// Option B // 4s1q4h

To Sudoku classic from HappyMod APP, you can follow this:
1. Open your browser and the HappyMod APK file from happymod.gamesite.info - the only official website of HappyMod.
2. Open Android Settings and go into Privacy or Security.
3. Tap the option to Allow Unknown Sources and enable it.
4. Go to your Android s and tap the APK file.
5. Follow the directions on the screen to install it.
6. Search Sudoku classic in HappyMod App.