(This is a bonus “second” puzzle that is not connected to the usual Monday-Saturday week difficulty.)
or solve online (using our beta test of Penpa-Edit tools)
Theme: No Four in a Row
Author/Opus: This is the 2nd puzzle from guest contributor Matej Uher.
Difficulty: 3 stars
Time Standards (highlight to view): Grandmaster = 2:45, Master = 4:00, Expert = 8:00
Note: Follow this link for classic Slitherlink and this link for Slitherlink variations. If you are new to this puzzle type, here are our easiest Slitherlink puzzles to get started on. More Slitherlink puzzles can be found in The Art of Puzzles, Slitherlink and Variations, and our beginner-friendly book Logic Puzzles 101.