About Perla Loop: Masyu

Perla Loop uses Masyu’s two pearl rules to guide one closed circuit. Go straight through white pearls and turn immediately before or after them. Turn on black pearls and go straight through their two neighboring path cells. The collection retains 13 original base boards and expands them into 104 distinct rotations and reflections across 5×5, 6×6 and 7×7; these are not 104 separately authored puzzles. Hint corrects one segment, new undo history survives reloading, and new unassisted times have their own record. Sound is optional and initially off. Daily selection and saves are local; no cloud-save adapter is included.

Explore category: Logic Puzzle Games

How to play

Pick a difficulty and New puzzle. Toggle segments between cell centers to route the loop through every pearl. Close one circuit without branches or crossings. Check reviews the pearl rules; Hint changes one segment. Empty cells need not be visited.

Rules in this version

Draw one closed loop through every pearl, without crossings or branches.
Pass straight through a white pearl and turn in at least one immediately neighboring path cell.
Turn on a black pearl, then pass straight through both immediately neighboring path cells.
Unmarked cells may remain outside the loop. Visiting the whole grid is unnecessary.

Tips for playing

A black pearl fixes more than one turn: extend both exits straight through the next cells.
Do not close a short circuit until every pearl can belong to the same loop.