or solve online (using our beta test of Penpa-Edit tools)
Author/Opus: This is the 74th puzzle from our contributing puzzlemaster John Bulten.
Rules: Standard Slitherlink rules. Also, an even number of cells in each row and in each column must be inside the loop.
Difficulty: 3.5 stars
Time Standards (highlight to view): Grandmaster = 3:45, Master = 5:00, Expert = 10:00
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.