Sudoku classic is a logic-based, combinatorial number-placement puzzle game. You need to fill a 9x9 grid with digits so that each column, each row, and each of the nine 3x3 sub-grids that compose the grid contains all of the digits from 1 to 9 to win the game.

FEATURES:
- Different difficulties ( Easy - Medium - Hard - Expert )
- Hundreds of puzzles for each difficulty
- Puzzle Mode With more than 1000 levels.
- Daily Challenge Mode.
- Pencil
- Undo
- Hint
- Erase
- Timer (optional)
- Clean interface and smooth controls
- Phones and tablets support

Download Now Sudoku classic for free.

// Option A //

To download Sudoku Classic mod from HappyMod.com.
You need enable the option "Unknown Sources".
1. Click on the above link to download Sudoku Classic mod APK.
2. Save the file in your device Downloads 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 //

To download Sudoku Classic from HappyMod APP, you can follow this:
1. Open your browser and download the HappyMod APK file from HappyMod.com - 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 downloads and tap the APK file.
5. Follow the directions on the screen to install it.
6. Search Sudoku Classic in HappyMod App.