Amazing, how many possibilities! 92 tries, only to find a 2 off. I'll keep trying, but came to express enthusiasm about it! Edit (more than 2 years later): Finally got it! Superb level!
The main path is kind of ''obvious'', but nevertheless, I really enjoyed this level. Was about 30 off, at first, then slowly came closer and had to look for the 2 off, at the end. :) Good level! Had troubles about how to ''break throug'', without getting blocked.
Was doing an error within the 15 first moves... This simple little error was sufficient to make be 2 off and doubt about what side to choose to return... And when I saw it? *banging head on table*
Very nice level, solved two days after christmas! Once you've chosen the correct initial direction, it wasn't too hard; just a matter of optimizing the return route.
Insights