Masyu Manifold - Logic Puzzles

Draw the loop. Follow the pearls. Let the path fold back on itself.

Masyu is a contemplative loop-forming logic puzzle with no numbers or letters: only black and white pearls on a clean grid reminiscent of a Go board.
To solve, draw a single continuous non-intersecting loop that goes through all pearls. The loop must travel straight through white pearls, turning in an adjacent cell. The loop must turn when traveling through black pearls, continuing straight on both sides. Like Sudoku, Slitherlink, Hashi, Kakuro, and Nonograms, each puzzle has exactly one solution reachable through logical deduction alone. No guessing required.

What makes Masyu distinctive is its elegance: the rules are simple, the deductions are deep, and the solving experience is calming and meditative.

Masyu Manifold is a logic puzzle game that takes the classic puzzle further. Puzzles can take on custom shapes, so that the grid itself becomes part of the aesthetic. These unique grid shapes allow you to leverage border constraints in novel ways as you solve them.

Manifold Gates act as portals that connect distant parts of the grid, allowing the loop to leap across the board while remaining continuous. Möbifold Gates (a nod to the Möbius strip) work the same way, except the exit is twisted. The result is a new class of mind-bending brain teasers where the loop can cross itself in ways that shouldn't be possible.

Why Masyu Manifold?
* No ads or interruptions
* Offline play
* 120+ handcrafted logic puzzles
* Classic Masyu and the new Manifold variant
* Three difficulty levels: Gentle, Focused, Demanding
* Each solved puzzle unlocks a short koan or zen poem — unique to you!
* Built-in puzzle editor: build and save your own creations
* Watercolor visual aesthetic with customizable themes
* Pinch to zoom, pan, undo, redo, error checking, loop highlighting
* Track puzzle solving times (or hide the timer)
* Grid sizes up to 12×20
* Progress saved across all puzzles concurrently

A note from the developer
Masyu Manifold is my first solo project, built to be relaxing, elegant, and respectful of your time. The puzzles are handcrafted. The koans are waiting. I hope you enjoy it!
Discord: https://discord.com/invite/BWma44aAkh

History
Masyu was invented by Nikoli, a Japanese publisher who invented Sudoku, Nonograms, and dozens of other logic puzzles. It was first published with only white pearls, under the title Shinju-no-Kubikazari (真珠の首飾り, “Pearl Necklace”). Black pearls were then added to increase complexity, under the title Shiro-Shinju Kuro-Shinju (白真珠黒真珠, “White Pearls and Black Pearls”). The story goes that Nikoli’s president misread the Kanji for Shinju as Masyu, which translates roughly to “evil influence”. Nikoli kept the name as an inside joke, and it stuck. A manifold is a topological space that locally resembles Euclidean space near each point. Whatever that means.