On 01/11/95 at 10:07:37 mreid@ptc.com said:
>jerry bryan writes

On 01/11/95 at 00:09:40 Dik.Winter@cwi.nl said:

>Note the word *long*. There is a 20-turn sequence for superflip.

I think we have a winner. I compared the data base for level 0
through 9 against the same data base superflipped, with no
matches. That should mean that there is no 18-turn or less
sequence for superflip.

wait a moment. dik is talking about face turns. what are you
talking about? face turns or quarter turns?

and if you're talking about face turns, there's no reason an odd
length maneuver can't exist.

I am talking about quarter turns. "Quarter turns" is in the
subject of Dik's note???? If Dik's figures are for face turns,
then Mike's 26q solution is still the best so far, and we have
a long way to go.

(Oops. I just peeked at Dik's 20 move solution. It is definitely
for face turns. In fact, as a quarter turn solution, it is 28
quarter turns.)

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Robert G. Bryan (Jerry Bryan)                        (304) 293-5192
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