MASYU: Loop Logic Puzzle
One loop, one answer. Daily.
Free · In‑App Purchases
White pearls go straight, black pearls turn. Find the one loop through every pearl. Every puzzle has a single answer you can reach by logic alone—no guessing.
White goes straight, black turns. Draw the one loop.
MASYU (Masyu, the classic "pearl" loop puzzle) asks you to link every white and black pearl into a single loop that never crosses or branches. Every puzzle has exactly one answer, reachable by pure logic—no guessing. Climb the ranks as you solve, and make one daily puzzle a calm habit.
◆ How to play
- White circle ○: the loop passes straight through and turns in the cell just before or after it
- Black circle ●: the loop turns on the circle and goes straight through the next cell on both sides
- Draw one closed loop that passes through every circle
◆ Features
- Four difficulties graded by depth of reasoning: Easy 6×6, Medium 7×7, Hard 8×8, Expert 8×8
- Every puzzle has exactly one solution, verified by a solver
- Daily puzzle that changes difficulty by weekday (Mon–Tue Easy, Wed–Thu Medium, Fri–Sat Hard, Sunday Expert)—the same puzzle for everyone
- Ranks: earn points with every solve and climb from 10 Kyu to 10 Dan
- Continue: close the app mid-puzzle and pick up exactly where you left off
- Simple controls: drag between dots to draw, retrace to erase
- Hints when you're stuck
- Stats: solves, average time, no-hint solves, daily streak
- Board themes (loop colors) and a shareable image of your solved loop
- Quiet paper-and-indigo design with dark mode
- For iPhone and iPad, in English and Japanese
◆ Great for you if
- You've played plenty of number puzzles and want a new kind of logic puzzle
- You enjoy pencil puzzles where you draw a single line or loop
- You want a few focused minutes on a commute or break
- You prefer puzzles solved by deduction, not trial and error
- You're looking for a small daily brain-training habit
◆ Privacy
- No account needed
- Your records stay on your device and are never sent anywhere
- Puzzles play fully offline
- To show our other apps, the app reads public information from the App Store
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Now optimized for iPhone Duo and iPad.
Minor improvements.
The developer, torankirite, 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 Not Collected
The developer does not collect any data from this app.
Accessibility
The developer indicated that this app doesn’t support certain accessibility features. Learn More about the accessibility features.
Information
- Seller
- torankirite
- Size
- 1.4 MB
- Category
- Puzzle
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - iPad
Requires iPadOS 17.0 or later.
- iPhone
- Languages
- English and Japanese
- Age Rating
4+
- 4+
- Contains
Advertising
- In-App Purchases
Yes
- Premium $4.99
- Copyright
- © 2026, Torankirite