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
• 60 achievements across 6 categories
• Technique mastery tracking in the library
• Campaign progress across 50 levels
• Win streaks and personal best times
• Google Play Games 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
• TalkBack support for accessibility
• 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.

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