This level is like a cold swimming pool. Frustrating at first, but fun once you get used to it. The fun didn't last long since I resolved the 2-off quickly, but at least it started after I found a huge cut.
Edit: This is now my new 100th professor - due to frequent difficulty rank changes.
I was making a small mistake and thought that I could optimize elsewhere. But due to my aimless meandering, I can tell you that there are at least a few minor variations on the 240. I am unsure if a 238 exists.
TK'd it from Professor to PhD. Great level! I don't think the 2-off is irritating, instead, I think it's fun. I found the search space fun, and easy to keep track of.
(As a result of 3-4 professors being demoted since my last 100th professor)
I'm glad that this absolutely amazing puzzle is my new 100th professor! And that 2 off did take several minutes to solve.
Insights