Game technique · Slitherlink
The 0 Clue in Slitherlink
A cell marked 0 has no loop edges around it.
🎮 Play Slitherlink →How it works
A cell marked 0 has no loop edges around it.
Example
Cross out all four surrounding edges, then use that information when solving neighboring cells.
Key point
A cell marked 0 has no loop edges around it.