Sudoku 21

Features Sudoku 21

Fill sudoku puzzles at your own pace with these included features:• Sudoku generation and solving.• Load and save system.• Undo and redo system.• Number placing by pressing an empty square.• Note placing by pressing and holding an empty square.• Settings for that little tweaking.• Quick fill that can be activated by pressing a number in the number selector a second time.
Once activated pressing a square will go through that squares allowed numbers in an ascending order, and holding will place all allowed notes.