Big fun for me on that one. I was afraid at first, as I'm pretty bad at such levels, but I rapidly found a way to be 2 off, and from there, concept became clear to me and I won straight after that. Good!
Tried this after Alazeh's choice, initially 10off using the route I didn't think would work, then got it using the route I thought would work. I'd probably be 10 off for months if it wasn't for the other level.
Insights