Logic Masters Deutschland e.V.

I was torn between 4* and 5* for this puzzle's difficulty as it's certainly not a walk in the park, and erred on the side of 4* because I've definitely made plenty of much harder puzzles. I also didn't originally include the given 9, and the puzzle is just about possible without it, so after my incredibly rare generosity of actually giving a not-strictly-necessary digit, there was no way I could rate it 5*!

And yes, I'm aware that two of the lines are entirely useless. But how could I resist the rainbow spiral?

Try my other Regionometer puzzles:
- Regional Heatwave
- Hysteria