(a year ago) Very interesting! Not obvious to me, at all. Needed several tries, be4 I got it right.
EDIT 4th July, 2023 - there was this new FlashBack's record, soon after and only today I found the last two steps (for 182). So I don't overpush, anymore. :))
Lovely solution, fun, non-frustrating level to explore. I found the possibilities easy to keep track of because I could categorize them. I did this so fast that I demoted it from professor to PhD. Great level!
Solving this level is really really painful, because it's so hard to keep track of what routes you've tried or haven't tried. The decision-making and logic feels incredibly dry, and when you finally get the answer, it feels like complete black magic. Why and how does this solution work? I'm screaming.
P.S. There are two solutions which are minor but significant variants of each other.