Sudoku — Classic Number Puzzle

Sudoku — Classic Number Puzzle is a beautiful, distraction-free Sudoku app — no ads, no fuss, just pure puzzle solving. Train your brain with four difficulty levels, from relaxed Easy puzzles to challenging Expert grids. A new Daily Challenge puzzle awaits you every day — the same puzzle for everyone, perfect for a shared experience. Features: • 4 difficulty levels: Easy, Medium, Hard, Expert • Daily Challenge — new puzzle every day • Hints system with smart suggestions • Undo — never lose progress • Auto notes for advanced players • Timer & mistake tracking • Achievements to unlock • Statistics to track your progress • 12 accent colors & 3 backgrounds • Dark mode support • No ads, no tracking, no subscriptions Premium (one-time, €4.99): Unlock Hard & Expert levels, unlimited undo, unlimited hints, all colors and backgrounds. Made with love by Rixdorf Studios in Berlin.