To me, the path is well hidden. My earlier approach ended up with 4 off. After I had a the a-ha moment I was still 4 off. Finally I found out what I had overlooked, but it was not a silly mistake (as in alazeh's case). It was a cleverly implemented shortcut. I agree with David that this level should get more recognition.
Incredible! For me, the "2 off trick" is solved by a choice of route. Not by a cut hidden somewhere. I was stuck, trying non-sense paths to "free" my mind, and suddenly, one worked! Again a case of "what seems longer and impossible is the one". I loved it!
Edited 11 years later: same fun as 11 years ago, just faster at it because more or less remembering. :D
(13 years ago) Perfect !
Took me 122 tries to finally find the correct way to do it (was mostly 2 off and on a wrong path, too).
****************************
EDIT 2022, 10th Oct., Finally I rebeat this ''little devil''. :))) My own comment from the past helped me with that. A great level, indeed!