Sudoku

Classic sudoku game for your smartphone and tablet.

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 con…