Message #1414

From: Eduard <>
Subject: Re: [MC4D] The 3 slice pentachoron
Date: Tue, 15 Feb 2011 21:00:29 -0000

Thanks for the answer.

— In, Roice Nelson <roice3@…> wrote:
> Hi Eduard,
> Yep, I haven’t yet seen any published guide for this puzzle. What I’ve
> thought would be neat is if the superliminal wiki could evolve into a guide,
> in addition to tracking all the user solves. So each puzzle page
> (this one<>for the thrice
> sliced simplex) would also have a "sequence library" section,
> which could be referenced by people attempting to do a solve. I’m not sure
> the best format for these sequence libraries. Maybe it could start out as
> just a macro file, but written out descriptions could also be included and
> would be nice. A short overview of how to attack the puzzle would be useful
> as well, like you’ve written out below. I imagine the guides as much more
> bare boned than the 3^4 solution - more of a set of guideposts for more
> experienced puzzle explorers. Anyway, if you felt motivated to do so, I’d
> encourage you to share the sequences you’ve uncovered in the wiki.
> (Though I’ve come to no conclusions, I’ve been wondering a little lately if
> there might be a better way to organize the rich repository of knowledge
> that is our group’s email history, so people could quickly find information
> they are interested in. It seems something like the above would be a step
> in the right direction.)
> All the best,
> Roice
> On Tue, Feb 15, 2011 at 9:33 AM, Eduard <baumann@…> wrote:
> >
> >
> > I asked in this forum for instructions for the pentachoron (3 slices).
> >
> > Since I got no reaction I think that these instructions do not exist. At
> > least not for a layered solution (as Roice’s for the magic cube). This is
> > not astonishing because the pentachoron beeing smaller (only 5 cells
> > compared with the 8 cells of the magic cube) seems to be more ensnared.
> > Reading (watching, playing) the log files from R.Durka I can’t learn
> > anything. Does he use computer aid?
> >
> > We can distinguish the following technics (1) fully by hand, (2) by hand
> > and macros, (3) with heavy computer aid. I’m doing (2).
> >
> > Without any macros and commutators you can do the 5 faces with 4
> > differently colored octahedra. Then the 5 fourcolored corners can be done
> > with slice 3 twists only.
> > After that you have the hard core of the job to be done: the 10
> > threecolored edges. For the moment I have established a 3-cycles across an
> > edge, a 3-cycle in a face and a 3-cycle around a vertex. I have also a
> > concept for a sequence which *mirrors* two edges in their place. I need
> > also a sequence to *turn* two edges in their place. All these sequences
> > work with slice 2 twists of course.
> >
> >