From dik@cwi.nl Sun Nov 8 17:35:25 1992 Return-Path: Received: from charon.cwi.nl by life.ai.mit.edu (4.1/AI-4.10) id AA04853; Sun, 8 Nov 92 17:35:25 EST Received: from boring.cwi.nl by charon.cwi.nl with SMTP id AA20522 (5.65b/3.2/CWI-Amsterdam); Sun, 8 Nov 1992 22:35:18 GMT Received: by boring.cwi.nl id AA21966 (5.65b/2.10/CWI-Amsterdam); Sun, 8 Nov 1992 23:35:17 +0100 Date: Sun, 8 Nov 1992 23:35:17 +0100 From: Dik.Winter@cwi.nl Message-Id: <9211082235.AA21966.dik@boring.cwi.nl> To: cube-lovers@ai.mit.edu Subject: Reply to old message Going through the archives I found a message from Mike Reid, dated August 20, where he investigates the filtration through different subgroups. I missed the original, but he says: > winter's filtration is 56 --> 49 --> kl --> 1. it may be the case that > this can be improved by replacing kl with 17 , and allowing all face > turns available in the subgroup 49. i haven't had the time to look into > this yet. For the record, the filtration is from Herbert Kociemba, and it is: 56 --> 49 --> 1. So there is no intermediate stage between 49 and 1. dik