[r-t] Easter challenge

Philip Earis pje24 at cantab.net
Sun Apr 12 10:49:11 UTC 2009

Thanks you, Mr Frye. Yes, pretty obvious when you explain it like that.

As a follow-up challenge, then, can somebody list all the treble-place
doubles treble paths which give methods than generate a plain-course

> There's a huge number of Doubles principles which generate a true extent
> in the plain course. SH

Umm, yes. Well I never.

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