Tridoku puzzles contains 9 large triangles.

Rules:
1. The numbers 1 to 9 must be placed into each large triange.
2. Each of the three legs of the inner shaded triangle must contains numbers 1 to 9
3. Each of the three legs of the outer shaded triangle must contains numbers 1 to 9
4. No two neighboring (touching) cells may contain the same numbers

**** Tridoku features ****

# Content
- 5 difficulty levels
- Unlimited Mode generates random puzzles

# Features
- "Hint" auto fills the board with memo that has no direct conflicts with other numbers
- Highlight same numbers as you select a number on board
- Autosave the process of unfinished levels
- Record best completion time for each level
- Try to complete as many levels as possible

// Option A //

To download Tridoku mod from HappyMod.com.
You need enable the option "Unknown Sources".
1. Click on the above link to download Tridoku 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 Tridoku 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 Tridoku in HappyMod App.