Very good level design. Lots of memories here. I've been stuck on this one for over a year which is the 2nd longest amount of time I've been stuck on a level. Forgive Me took me 3 years to solve while playing on and off from time to time. I've never even tried 70 and 71 up to this point. I felt like I had enough for a while and they don't look any easier.
Dear level creators: kindly stop making big levels that appear to be symmetrical, but aren't. I want to solve a puzzle, not get a microscope out to see which block is the one that's slightly different. That said, the path is pretty cool, but I can't enjoy this kind of level design.