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Daily Challenge — a new puzzle every day, with streaks and a calendar
Clean, fast Sudoku with offline play, smart hints, notes & camera solver.
Play Sudoku the way it should be—clean, fast, and deeply satisfying. Clean Sudoku brings classic 9×9 logic to life with a minimalist design, smooth controls, and tools that help both newcomers and experts enjoy every solve. WHY YOU’LL LOVE IT • Clean, distraction-free UI built for focus • Offline play—no connection needed • Camera Scan & Solver: snap a newspaper puzzle and solve or play it in the app • Multiple difficulties from Easy to Expert • Smart Hints that teach (not just tell) the next logical move • Notes / Pencil Marks with candidate highlights • Mistake Check & Duplicate Highlight (optional) • Undo / Redo and Auto-Save so your progress is always safe • Detailed Stats: time, streaks, bests, and completion rates • Daily Challenge & Global Leaderboard • Custom Themes including Soft Mode and Dark Mode • Haptics, sound, and animation tweaks you can control FOR BEGINNERS • Learn-as-you-play hints that explain strategies step-by-step • Gentle difficulty ramp, error-checking, and optional guides • Auto-fill notes (optional) to understand candidate logic FOR EXPERTS • Handcrafted, unique-solution puzzles and symmetric layouts • Zero-delay inputs, fast note toggling, and precision controls • Timer, personal records, and advanced candidate tooling TOOLS & CUSTOMIZATION • Toggle mistake check, note styles, and highlight preferences • Switch themes anytime—Soft Mode, Light, or Dark • Turn haptics/sounds on or off to match your vibe FAIR & FOCUSED • No sign-in required • Works great offline • Small download size and battery friendly TIPS • Long-press a number to highlight its places on the board • Use Smart Hints to learn techniques like singles, hidden singles, and more • Prefer playing scanned puzzles? Use the Camera to import and track them Whether you solve a quick daily grid or grind for a new personal best, Clean Sudoku keeps the experience pure, elegant, and fast. Download now and make Sudoku your mindful daily habit.