Puzzle rules

Slitherlink / Fences

Draw one closed loop along the grid lines. The loop cannot branch, cross itself, or have loose ends. A number inside a cell gives the exact number of that cell’s four sides used by the loop.

How to solve

Complete rules

Goal: Draw one single closed loop along the grid lines. Rules: - The loop cannot branch, cross itself, overlap, or have loose ends. - A numbered cell shows exactly how many of its four sides belong to the loop. - Blank cells have no direct numerical requirement. - All drawn segments must be part of the same loop.

  • Numbers
  • Path
  • Logic
  • Grid
Explore all puzzle types