I don’t know why I was just completely blind to the solution here - with how restricted the level is it feels so obvious in hindsight. The level is pretty messy though - so much of it is just not used, even in the paths that are far off.
I'm so happy I was able to solve this one. Two weeks ago, when I saw it, I left it untouched... And now I got it... No matter what, 5 stars LOL
More seriously, I find it a good level to teach beginner how to find a block to unlock a broken row of holes. The board should just be reduced in size of my opinion because all this black and grey for nothing...