From cube-lovers-errors@oolong.camellia.org Tue Jul 15 13:17:34 1997 Return-Path: cube-lovers-errors@oolong.camellia.org Received: from oolong.camellia.org (localhost [127.0.0.1]) by oolong.camellia.org (8.6.12/8.6.12) with SMTP id NAA10953; Tue, 15 Jul 1997 13:17:33 -0400 Precedence: bulk Errors-To: cube-lovers-errors@oolong.camellia.org Message-Id: <9707151143.AA27610@la1.apd.dec.com> Subject: Re: hockey puck puzzle To: Allan Wechsler Date: Tue, 15 Jul 1997 13:42:54 +0200 (CETS) From: Jan de Ruiter Cc: cube-lovers@ai.mit.edu In-Reply-To: <199707141759.NAA00043@spork.bbn.com> from "Allan Wechsler" at Jul 14, 97 01:59:16 pm Reply-To: jandr@xirion.nl X-Mailer: ELM [version 2.4 PL23] Content-Type: text > > Please give a clearer description of the puck. The photo gives only a > slight clue about how many pieces there are, and how they are > arranged. Are there twelve pieces, or twenty-four, or more? > > -A > The puzzle contains edge pieces and center pieces, all with the same thickness as the puck. There are always two center pieces which together form the inner circle. In this case there are 12 edge pieces which together form the outer ring. Simpeler pucks might contain less than 12 edge pieces, but always an even number. The possible moves are: 1. rotate one center piece with half of the edge pieces 180 degrees relative to the other center piece and the other half of the edge pieces. 2. rotate the edge pieces around the center pieces, always multiples of 30 degrees, or 1/12 of a circle (or more if there are less edge pieces) I know the puck with 6 edge pieces is near trivial to solve. I haven't tried the other ones yet. Jan de Ruiter