Sudoku Dojo Free

This is the free version of Sudoku Dojo Pro.

Opposed to many other free Sudokus, this app does NOT display any ads while solving the Sudokus.

You'll never have to buy another book of Sudokus - Sudoku Dojo generates unlimited amounts of Sudokus in three different difficulty levels. All of them can be solved using logic only - no guesswork needed.

If you are stuck, it will give you logical advice on how to make progress. This advice will be displayed as a concise explanation, as well as a graphical representation.

The app features

- Unlimited Sudokus - new ones are generated while you play, so you'll never run out of your favourite number puzzles.

- Easy entering notes/candidates/values - simply use short and long presses on the numbered buttons

- Conjugate pairs can be colored and combined to chains, which can be used to get closer to the solution

- Many different levels of aid, including full graphical explanation of the next step towards the solution, highlighting same values and/or candidates, a validity check, highlighting wrong values, etc.

- Unlimited undo/redo, which is even saved, when playing is paused

- Google Play Services integration with 10 achievements (over 30.000 XP)

- Enter your own Sudokus or construct new ones

- The only permissions that Sudoku Dojo Free requires are the permission needed by AdMob for displaying ads. The pro version does not require any permissions.

- It's completely gratis.