Robin Woolley robin at robinw.org.uk
Wed Feb 1 07:37:01 UTC 2017

The course which RRH came up with, as far as I can see, is the only one 
which includes seven plain leads of "horton's four" and this is the 
interesting thing. The question I have is how did RRH come up with it? 
(I suspect DGH must have been responsible for the shortening to QP length).

I have a spreadsheet somewhere which I believe contains all such 
courses. I remember corresponding with GACJ on this years ago.

Best wishes

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