It was magic for me. I was on the correct route but 4 off, and while testing variations on that route, suddenly I won. Only I can't recall what I did different... LOL
I can't help it, I get bored at such long routes with nothing special to do on the way. I will therefore not rate it.
On my first try I was 2 off, and there was no way I was going to repeat it to cut the 2. Maybe a smaller scale?