[next] [prev] [up] Date: Sat, 06 Dec 80 13:40:00 -0700 (PST)
[next] [prev] [up] From: Bill McKeeman <McKeeman.PA@PARC-MAXC >
[next] [prev] [up] Subject: Re: That 28 move Plummer Cross


Interesting observation! Your argument about the Plummer Cross being a local
maximum in QTW metric holds for any completely symmetrical configuration of
the cube, independent of the algorithm used to reach it. There are a lot of them
(including "home").

It raises the question: Can the maximally distant point be proven to be
symmetric? If so, the search for a bound is much simplified.


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