Sudoku game based on classic 9x9 number puzzle rules.

This sudoku puzzle game provides standard gameplay and common solving tools used in classic sudoku.

Main features:
- Notes mode for recording possible numbers
- Hints to assist during sudoku puzzles
- Undo and redo actions
- Pause and resume gameplay
- Automatic saving of sudoku progress
- Local leaderboard for puzzle completion time
- Sudoku rules and instructions
- Offline sudoku gameplay without internet connection

This application follows classic sudoku rules and supports offline play.