So far I can't beat it after 43 tries, but I've seen enough really cleverly constructed 2 off and 4 off paths to know that the final solution will be incredibly brilliant. Unparalleled level. EDIT: And I got it! Truly ingenious construction. Undoubtedly one of the best levels ever created.
Superb ! It took me about 50 tries to get to 2 off. I was just getting desperate (been trying for a longer time - weeks ...), when another option burst into my mind and I solved it in 93rd try. GREAT puzzle !
Forgot to review it. This was the strangest level I beat. I was 2 off for a very long time and was sitting in church not thinking of psychopath when the solution suddenly appeared in my head. That never happened again.