This one had me fooled for quite some time, trying to improve on my 2-off path. Had to take a step back and investigate some other options, before I saw the solution.
Initially I could only see one route and it was 2off, I've found more, but they're 2 off too. I'm blind to the solution.
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Edit. Came back to it today and within a few attempts I got it, it just seemed to spring out this time.