Release

Initial release contains the following difficulties: Easy, Medium and Hard. And the base sudoku game features.

Next happening changes:

1. Settings menu with controllable window size and fullscreen mode (Need time to have scaleable UI), controllable audio and much more,
2. Save system to keep track of the best times in each difficulty.

Next possible changes:

1. New difficulties that remove the highlight function and etc.,
2. Xp and levels,
3. Themes.