From mreid@ptc.com Wed Jan 11 09:56:20 1995 Return-Path: Received: from ptc.com (poster.ptc.com) by life.ai.mit.edu (4.1/AI-4.10) for /com/archive/cube-lovers id AA12225; Wed, 11 Jan 95 09:56:20 EST Received: from ducie.ptc.com by ptc.com (5.0/SMI-SVR4-NN) id AA28170; Wed, 11 Jan 95 09:54:58 EST Received: by ducie.ptc.com (1.38.193.4/sendmail.28-May-87) id AA19537; Wed, 11 Jan 1995 10:07:37 -0500 Date: Wed, 11 Jan 1995 10:07:37 -0500 From: mreid@ptc.com (michael reid) Message-Id: <9501111507.AA19537@ducie.ptc.com> To: bryan@wvnvm.wvnet.edu, cube-lovers@ai.mit.edu Subject: Re: kociemba's algorithm for quarter turns Content-Length: 570 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. mike