MASYU: Loop Logic Puzzle

About

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