Board Thread:Eureka Moments/@comment-32898819-20170915154104/@comment-24.44.23.118-20190111130500

I've been stuck on the Hl board that has a separate column of 4 lights on the left side. I understand how the horizontal and vertical strings work. I've spent rubies to use the magnifying glass tool, but no matter what I try, there's never enough time to solve this puzzle. I'm very frustrated. Any help would be greatly appreciated.