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Puzzling

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  • $\begingroup$ May I suggest "through" rather than "for" in the last bullet point? I think that makes it harder to misinterpret. $\endgroup$
    – Gareth McCaughan ♦
    Commented Oct 14, 2019 at 13:02
  • 1
    $\begingroup$ A ray-traced solution would be awesome. $\endgroup$
    – Daniel Mathias
    Commented Oct 14, 2019 at 13:09
  • $\begingroup$ I've experimented a little with ray-tracing and it's less good than you'd think. Unless you also have the ability to spin things around in 3D etc., it's hard to see what's going on. $\endgroup$
    – Gareth McCaughan ♦
    Commented Oct 14, 2019 at 15:23