Stack Exchange Network

Stack Exchange network consists of 175 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Visit Stack Exchange

Slitherlink is a logic puzzle where the goal is to draw a loop so each number has that many edges of the loop adjacent to it.

Slitherlink is a combinatorial logic puzzle usually played on a square grid.

The rules are simple. Some of the squares contain a number. The objective is to mark the edges on the grid in order to form a single closed circuit with no intersections.

The number of edges of every square that contains a number must match with that number.

Variants exist with other grid shapes, for example see Loopy.

history | excerpt history