Logic Puzzle Club

Featured puzzles

One puzzle a week, picked by hand. Some we made, some come from setters we admire. Every one has exactly one solution and a logical way in.

This week’s puzzle

A long loop

Slitherlink · 12 × 12 · Week 5, September 29 to October 5, 2026

Set by Logic Puzzle Club

The hardest of eight 12 × 12 Slitherlinks we generated for this spot. The full solve takes 247 logical steps and uses 13 different techniques.