Sudoku

Classic sudoku game for your smartphone and tablet.

Features:

- Four difficulty levels (easy, normal, hard, very hard).

- Tutorial with several techniques (from beginner to advanced) for solving the game.

- Unlimited undo and redo.

- Game saving.

- Notes.

- Auto noting empty squares.

- Auto updating notes.

- Square coloring with two colors for advanced techniques.

- Errors checking (manual and automatic).

- Screen rotation control. Check screen rotation for playing in portrait and landscape or uncheck it for playing in the mode you prefer no matter the orientation of the screen.

- Send the game to a friend via whatsApp, email, etc...