SudokuZen: Learn Sudoku
40 techniques. Learn by doing.
Only for iPhone
Free
iPhone
Find the reason behind your next move. Try 40 technique lessons, targeted practice and over 1,000 classic puzzles, then challenge a friend. No ads or in-app purchases.
Stuck on your next Sudoku move? Learn how to find it, not just what the answer is. SudokuZen connects illustrated lessons, focused practice and real puzzles in one learning journey.
Language note: the game interface and lesson content are currently primarily in Traditional Chinese.
LEARN THE LOGIC
Explore 40 technique lessons, from singles and locked candidates to X-Wing, advanced chains and ALS. Walk through illustrated examples and see how numbers and candidates reveal a deduction.
TURN KNOWLEDGE INTO PRACTICE
Work through over 1,000 targeted practice puzzles and over 1,000 classic Sudoku levels. Learn a technique, practice it and demonstrate it in a real puzzle to progress through the journey.
GROW IN WORLD TRIALS
Try different challenge rules, earn experience and build your technique collection. Keep a record of your progress as new challenges become available.
CHALLENGE A FRIEND
Create or join a room and solve the same puzzle in a live two-player match. Follow both players' progress as you play. The duel mode unlocks after the required learning progress.
PLAY AT YOUR OWN PACE
Use candidate notes, track results and achievements, and revisit recorded moves with game replays. The main solo content works offline.
No ads. No in-app purchases. No manual account registration. Leaderboards, cloud progress and live duels require an internet connection and use an automatically created anonymous account.
Some modes and features unlock as you progress.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, YuDi Huang, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Linked to You
The following data may be collected and linked to your identity:
- User Content
- Identifiers
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- YuDi Huang
- Size
- 38.4 MB
- Category
- Puzzle
- Compatibility
Requires iOS 15.0 or later.
- iPhone
Requires iOS 15.0 or later. - iPod touch
Requires iOS 15.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Infrequent
Contests
- Copyright
- © 2026 YuDi Huang
