Sudoku 9 : Number Puzzle Game

Sudoku 9 is a clean, free Sudoku game with minimal ads. Open it and give your brain a quick workout anytime, anywhere. • 4 difficulty levels: Easy / Medium / Hard / Expert • Clear a level to unlock the next • Notes (pencil) mode, hints, and instant undo • Mistake check and auto-highlight of matching numbers • Clean design with stats — no sign-up, works offline Sudoku is solved by logic, not math. Download and start your daily brain workout today!