With Sudoku Classic now you have the famous logic puzzle always with you - for free and offline. Whether you'd like to relax or keep your mind active - pass your free time in a pleasant way. More than 60,000 Sudoku puzzles guarantee incredible gameplay. Six different levels of difficulty, additional helper functions, track your progress with statistics, celebrate your achievements and conquer the leaderboards. Playing Sudoku on the smartphone is as good as with a real pencil and paper.

Features:
• Free and fully usable offline
• More than 60,000 Sudoku puzzles
• 6 Sudoku difficulty levels: from BEGINNER to EVIL 17
• Solve puzzles automatically with auto-solver
• Notes as on paper
• Eraser for getting rid of all mistakes
• Undo option for reverting mistakes or accidentally moves
• Save and continue game whenever you want
• Achievements and leaderboards using Google Play Games
• Statistics to track your progress for each difficulty level: analyze your best times
• Night Mode theme
• Optimized for Smartphone and Tablet

Optional helper functions:
• Input buttons are highlighted if a number is used 9 times (or more) in the Sudoku puzzle
• Highlighting of row, column and box of the conflicted entered numbers
• Highlighting of all fields which have the same value as the currently selected input button
• Additional random hints per game
• Clear notes automatically after number input

Train your brain with Sudoku app anywhere, anytime!

// 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.