Sudoku. Simple & Elegant.

Learn and master Sudoku, from your very first puzzle to the most advanced techniques. Sudoku. is more than a puzzle app — it's a complete coaching platform. With 41 solving techniques, interactive tutorials, and a 50-level campaign, every feature is designed to help you understand the logic behind each move. No guessing, no random hints. Just clear, technique-driven learning that makes you a better solver. Whether you're starting out with Naked Singles or mastering X-Chains, Sudoku. meets you where you are and guides you forward. LEARN WITH 41 TECHNIQUES • Technique Library — browse and practice 41 solving techniques with interactive tutorials • Campaign Mode — 50 progressive levels across 5 worlds, from beginner to grandmaster • Smart Hints — explain the technique behind each step, not just the answer • Chain Drawing — visualize complex solving logic directly on the grid DAILY CHALLENGES • A fresh puzzle every day, identical for players worldwide • Build your streak and track your progress on the calendar • Compete on global leaderboards and see how you rank SIX DIFFICULTY LEVELS • Easy: Perfect for beginners and quick mental warm-ups • Medium: A satisfying challenge for everyday play • Hard: Put your logic skills to the test • Expert: For serious puzzle solvers who want more • Pro: Push your limits with advanced techniques • Master: The ultimate challenge for true Sudoku masters ELEGANT DESIGN • Clean, newspaper-inspired aesthetic that feels timeless • Ten beautiful color themes with light and dark variants • Customizable cell highlight and note colors • Smooth animations and responsive, native feel • Dark mode for comfortable late-night sessions SMART TOOLS • Pencil marks and inline candidates for noting possibilities • Draw chains to trace complex solving logic • Unlimited undo and redo — experiment freely • Error highlighting to catch mistakes early • Auto-save ensures you never lose your progress • Highlight matching numbers to spot patterns instantly TRACK YOUR MASTERY • XP system with 100 levels to achieve • 100 achievements across 6 categories • Technique mastery tracking in the library • Campaign progress across 50 levels • Win streaks and personal best times • Game Center integration for competing with friends • Cloud sync keeps your progress safe across devices PLAY YOUR WAY • Works completely offline — play anywhere, anytime • No account required to start playing • 71 languages supported with full localization • Free to play with no paywalls blocking content WHY PLAYERS LOVE SUDOKU. Sudoku. transforms a daily ritual into a journey of continuous improvement. Instead of guessing or Googling, you learn the real techniques that master solvers use — and the app teaches them to you one step at a time. It's the difference between solving puzzles and truly understanding them. Start your journey today. Download free and discover what it means to truly master Sudoku. Terms of Use: https://www.locksmithcreativemilan.com/sudoku/legal/terms-of-service.html