Can the loop cross itself?
No. The loop must be a single non-crossing path.
What happens at a white pearl?
The loop passes straight through the pearl, but must turn on at least one adjacent side.
What happens at a black pearl?
The loop turns at the pearl and travels straight through the cells on either side of the turn.
Can the loop pass through empty cells?
Yes, but every pearl must be on the loop.
Are larger Masyu grids harder?
Larger grids have more possibilities, so they require more patience and pattern memory.
