Sudoku

Sudoku provides daily games at 16 difficulty levels. Novices and experienced players alike will enjoy our extensive feature set, tutorial, and advanced hint system. The more you play, the more you will enjoy Sudoku!

For unlimited puzzles, check out our other Sudoku product: Enjoy Sudoku (paid).

Our multi-stage hint system starts with a gentle reminder to get you back on track, and works up to demonstrate the exact technique to use. Our hints ease those frustrating moments and teach you how to be a better player.

Features include:

* Daily puzzles at 16 levels
* Extensive tutorial
* Optimized for fewer touches
* Supports phones and tablets
* Undo/redo
* Automatic or manual pencil marks
* Supports touch screen, keyboard,
   and trackball input
* Large, high contrast digits are
   easy to read
* Advanced techniques, including
   sashimi fish, chains, etc
* Choice of six color schemes
* Save your games
* Highlighting reveals patterns
* Supports low, medium, high, and
   extra high resolution displays
* Game clock (compare your times)
* Avoids distracting graphic frills
* Choice of digit styles, including
   Kanji and Hanzi

All games are true Sudoku, with symmetry and a single solution that can be discovered by logic alone. If you doubt that a Sudoku puzzle can be solved by logic, simply have the hint system explain it to you step by step.

If you enjoy Sudoku daily, this is the app for you!

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Recent changes:
Added a congratulations message when you set a personal record. Can now optionally be installed on SD cards. Added manual coloring of cells and pencil marks. This is off by default, look for the new Preferences setting. The game now pauses while the Game menu is displayed during play. The yellow digit complete indicator is disabled when playing without assistance of any kind. Improved support for xhdpi displays. Various other minor updates and bug fixes.