[next] [prev] [up] Date: Thu, 17 Jul 80 16:35:00 -0400 (EDT)
[next] [prev] [up] From: Alan Bawden <ALAN@MIT-MC >
[next] [prev] [up] Subject: the cross design

Yes, the cross design is possible. I will let BSG try and describe it
if people want. It is fairly straightfoward to tell if a position is
reachable. I am thinking of onlining the proof that there are 12
equivalence classes of cubes (I think I have a fairly simplified
version), and if I do it should contain an algorithm to tell if a
position is reachable.


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