Titan sudoku is a free sudoku game with 36,000+ puzzles.
Sudoku originally called Number Place, it is a logic-based, combinatorial number-placement puzzle. The objective is to fill a 9×9 grid with digits so that each column, each row, and each of the nine 3×3 sub-grids that compose the grid (also called "boxes", "blocks", "regions", or "sub-squares") contains all of the digits from 1 to 9. The puzzle setter provides a partially completed grid, which for a well-posed puzzle has a unique solution.

Completed puzzles are always a type of Latin square with an additional constraint on the contents of individual regions. For example, the same single integer may not appear twice in the same row, column or in any of the nine 3×3 subregions of the 9x9 playing board.

Features:
1. 4 difficulties
2. 36,000 puzzles
3. 6 themes
4. Create own puzzles

If you like sudoku, you should give Sudoku Free a try.

Join us on Facebook:
http://facebook.com/Titan.Jigsaw.Puzzles

// Option A //

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