** 11 years ago **
After many many tries, I got it. Happy it is behind me. For me, it's again such one where I have the correct route but remain 2 off for ages, until I finally find out where is the stupid move I do for nothing.
** 11 years later **
Re-beaten! I enjoyed it a lot. I had a 2 off and my old comment above did mislead me as I kept searching 2 steps I can cut on that route, what was wrong: It had nothing to do with a 2 steps saver, it had to do with finding a different route combined with a different ordering. I then was 2 off again, but this time solvable.
Therefore a hint: Take care, there are different 2 off routes (really different, not just minor variations). Only one offers a 2 steps saver.
Insights