Slitherlink by Thomas Snyder
or solve online (using our beta test of Penpa-Edit tools in edgex mode where left click+drag draws lines and right click marks X’s)
Theme: Diagonals
Author/Opus: This is the 385th puzzle from Thomas Snyder, aka Dr. Sudoku.
Rules: Standard Slitherlink rules.
Difficulty: 2 stars
Time Standards (highlight to view): Grandmaster = 1:15, Master = 2:00, Expert = 4:00
Solution: PDF; a solution video is also available here.
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.
2.57 mins to solve this nice puzzle.