I did massively struggle to get that one done. I first was on wrong routes, and after that, I found the correct one, but needed again time to cut my 2 off, caused by the way I was moving blocks right after start location. Am really happy I solved it!
Beautiful level! Amazing that everything in the 19 works out so well to block things off. Took me a really long time to get to the exit, and there's a lot to explore in the optimization as well. Expecting this one to have more saves lurking somewhere