Region Sum Lines

Crystalline shards and sharp angles, it’s like a Fortress of Solitude in this puzzle.

I know I’ve named a puzzle after The Killers’ best album, but that doesn’t mean I don’t also appreciate their more-popular hits. I celebrate their entire catalog!

The key strategy to Region Sum Lines involves lines that are a single cell in one region but three cells in another region. Three and one at the same time. So here’s a puzzle with nine such lines!

Plenty of blue Region Sum Lines all around, plus one of each digit. In case you need a reminder of the digits one through nine!

I hope you’re not tired of Region Sum Lines yet. I hope the blue lines aren’t driving you… around the bend!

In another puzzle, blue lines might suggest water, or a serene sky, but I can’t help but think of them here as shards of glass. Be careful!

Perhaps someone’s a little tipsy, but they’re watching over you as you solve this puzzle.