Same boat as manti here, I think I got this one pretty quick the first time around but just tried again and it stumped me for a bit. The 74 on this is really nice.
I came just out of curiosity, since I am still a beginner. So I cannot completely believe, that I solved this marvelous puzzle (15 tries). Very tricky level, indeed. My 1st done, in the Hard world (and 2nd that I peeped into, around here). :)
still havent beaten it...SO MANY WAYS TO BE 4 OFF :@, after 20 tries, 2 steps off :P
EDIT: POST LEGEND :D beat it after 22 tries in the end ^_^ great trick