slipped on a banana level 80 -> 70. Love the optimization here. Very unintuitive for me. This was tricky. :))
I had an 80, first, then 78. The 70 took me a bit longer. :) Cool dependencies, cool optimizations Very nice! The 78 was so tempting, and yet there was much better. I have an idea for bob v3 but can't solve it yet
edit- where is 78 
Insights