From mreid@ptc.com Thu Jan 5 17:01:22 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 AA23191; Thu, 5 Jan 95 17:01:22 EST Received: from ducie.ptc.com by ptc.com (5.0/SMI-SVR4-NN) id AA00298; Thu, 5 Jan 95 17:00:01 EST Received: by ducie.ptc.com (1.38.193.4/sendmail.28-May-87) id AA04664; Thu, 5 Jan 1995 17:12:18 -0500 Date: Thu, 5 Jan 1995 17:12:18 -0500 From: mreid@ptc.com (michael reid) Message-Id: <9501052212.AA04664@ducie.ptc.com> To: cube-lovers%life.ai.mit.edu@ptc.com Subject: kociemba's algorithm for quarter turns Content-Length: 605 for much too long now, i've meant to implement kociemba's algorithm for quarter turns. finally i've gotten around to it, and it's found superflip: B3 L3 U3 L3 F1 U1 D1 L3 B1 U1 F1 R3 L1 F3 B2 U1 D1 F2 B2 R2 U1 D1 26q it's interesting to note that david plummer gave a 28 quarter turn maneuver for superflip on december 10, 1980. as far as i know, this is the first improvement since then. also found: supertwist: B3 L2 U1 D1 R2 B3 D2 F2 D3 R2 F1 B1 L2 D3 B2 U2 24q superfliptwist: U1 B3 U3 L3 F3 U3 B3 R3 D1 F3 D3 B3 U3 F3 L3 U1 F1 U1 D3 B2 U3 22q more patterns to follow ... mike