FAQ
Q: What is Sudoku?
A: Sudoku is the classic logic-based number placement puzzle, reimagined for modern Apple devices. Fill a 9×9 grid so that every row, column, and 3×3 box contains digits 1–9 exactly once. It's a universal app supporting iPhone, iPad, and Mac with iCloud sync.
Q: Which devices are supported?
A: Sudoku is a universal app optimized for iPhone, iPad, and Mac with native controls and crisp Retina display graphics. It requires iOS/iPadOS 16.0 or later and macOS 15.0 (Sequoia) or later. One purchase works on all supported devices.
Q: How do I download and install Sudoku?
A: Download Sudoku from the App Store: https://apps.apple.com/app/id6793606018 — the universal app works on iPhone, iPad, and Mac.
Q: Does Sudoku need an internet connection?
A: Core gameplay is 100% offline — no internet needed to play puzzles. Optional features that require internet include iCloud sync (for cross-device progress), Game Center (leaderboards/achievements), and the "More Apps" section in Settings.
Q: Are there ads or in-app purchases?
A: No. Sudoku is completely ad-free with no pop-ups, no in-app purchases, and no interruptions. Just pure, focused puzzle gameplay.
Q: What difficulty levels are available?
A: Five difficulty levels with different numbers of given cells:
- Easy — 45 givens (great for beginners)
- Medium — 36 givens (balanced challenge)
- Hard — 31 givens (requires deduction techniques)
- Expert — 27 givens (for experienced solvers)
- Master — 24 givens (the ultimate challenge)
Each puzzle is uniquely generated — you'll never play the same puzzle twice.
Q: Is my game data synced across devices?
A: Yes! When you sign into iCloud, your game saves, statistics, settings, and daily challenge progress automatically sync across all your Apple devices via CloudKit.
Q: Does Sudoku save my progress if I quit?
A: Yes. Your current game is saved automatically so you can continue right where you left off. The home screen shows a "Continue" card with your active puzzle.
Q: How do I update the app?
A: App Store users receive updates automatically. To check manually, open the App Store and go to your Account → Updates section.
Q: How do I report bugs or request features?
A: Open an issue in the project repository and include your device type, iOS/macOS version, Sudoku version, reproduction steps, and screenshots if available.
Q: Can I customize the appearance?
A: Yes! Choose from 8 beautiful themes (Classic, Midnight, Paper, Forest, Ocean, Sunset, Lavender, Rose) in Settings. You can also toggle sound effects on/off.
Q: How many languages are supported?
A: 25 languages, switchable at runtime without restarting: English, Chinese (Simplified & Traditional), Japanese, Korean, French, German, Spanish, Italian, Russian, Portuguese, Dutch, Vietnamese, Thai, Hindi, Turkish, Greek, Finnish, Norwegian, Danish, Hungarian, Indonesian, Malay, Ukrainian, and German (Switzerland).
Q: What are the keyboard shortcuts on Mac?
A: ⌘N for a new game, ⌘Z to undo, and ⌘1 through ⌘5 to start a new game at each difficulty level (Easy through Master).
Q: Can I print puzzles?
A: Yes! On Mac, use the Print feature to generate printable puzzles at any difficulty level, with optional answer keys included.
If you need more answers, please open an issue in the repository or consult the full documentation.