[next] [prev] [up] Date: Wed, 10 Dec 80 01:57:00 -0500 (EST)
[next] [prev] [up] From: David C. Plummer <DCP@MIT-MC >
~~~ ~~~ [up] Subject: The 28 QTW all-edge-flipper mentioned by ALAN

Indeed it can be done in 28.
Tool: flip the top edges and the bottom edges:

	(R L) (U D) (F B) (R L) (U D) (F  B) 
To do the other four, insert the following things at the indicated
	(u b') (u' D b' u' d l' u' d f' u' d r') (b u')

There may be another place to put this to find a shorter path.
Those with time are free to try and find one.

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