Slitherlink

About Slitherlink

Slitherlink is a logic puzzle where you draw one continuous loop around a grid. Number clues tell you how many sides of a cell must be part of the loop.

How to play Slitherlink

Draw line segments between grid points. A numbered cell must have exactly that many surrounding edges included in the final loop. The loop must be single and continuous, with no branches or separate loops.

Tips for playing Slitherlink

Start with obvious clues such as zeros and high numbers. Mark edges that cannot be used when you know them. Avoid creating a closed loop too early unless it includes the whole solution.

Slitherlink history and background

Slitherlink is strongly associated with Japanese logic puzzle publishing and became known internationally through puzzle magazines and digital puzzle collections. Its appeal comes from simple rules and deep deduction.

Slitherlink FAQ

What does a number mean in Slitherlink?

It tells you how many sides around that cell must be part of the loop.

Can Slitherlink have more than one loop?

No. The final answer should be one continuous loop.