Thanks - that's a bit better of a teaser. I'm happy to see mine isn't red, but it's pretty tightly clumped in the main group of solutions. That's not really s

Thanks - that's a bit better of a teaser. I'm happy to see mine isn't red, but it's pretty tightly clumped in the main group of solutions. That's not really surprising as it's not that far off from your reference solution, which seems to be the most straightforward way to go about it.