Yajilin by Jeffrey Bardon
or solve online (using our beta test of Penpa-Edit tools)
Theme: Plusses
Author/Opus: This is the 3rd puzzle from guest contributor Jeffrey Bardon.
Rules: Standard Yajilin rules.
Difficulty: 4 stars
Time Standards (highlight to view): Grandmaster = 8:15, Master = 15:00, Expert = 30:00
Solution: PDF; a solution video is also available here.
Note: Follow this link for classic Yajilin and this link for Yajilin variations. If you are new to this puzzle type, here are our easiest Yajilin to get started on. More Yajilin puzzles can be found in The Art of Puzzles 2, in Yajilin by Murat Can Tonta and Prasanna Seshadri, and in our beginner-friendly book Logic Puzzles 101.
This is a tricky puzzle. I could not solve it and had to look at the solution video for this puzzle. Many things to learn from the solution video of this puzzle.