Message #2288

From: Melinda Green <melinda@superliminal.com>
Subject: Re: [MC4D] Re: New Solution Page: 2 Layer Simplex
Date: Fri, 22 Jun 2012 20:28:16 -0700

And remember, this is on a wiki meaning that everyone can help fix
mistakes, add content, etc. not just Jacob. Sometimes it’s easier to fix
something than to describe what needs to be fixed. :-)
-Melinda

On 6/22/2012 5:29 PM, Jacob wrote:
>
>
> Thanks for the feedback and I’m glad you understood it well. Actually
> you would be right about the two move twists. Before now, I had never
> had more than 2 separate 2 move twists in any solve, and never more
> than 1 if every piece was scrambled, so I assumed that was a pattern
> like with edges and corners on the Rubik’s cube. I actually just had
> one that needed 8, and it was kinda confusing until I went back and
> noticed that I had 3 separate 2 twists while every piece was
> scrambled. The advice about the pyraminx is very smart, but I
> don’t own one. I’ll have to make one on UMC and take a screen shot
> later. For now, I’ll go make that quick text edit and change the
> title. (I forgot what I had called it before when I made the page,
> then forgot to change it when I remembered XD)
> /Get your facts first, then you can distort them as you please./
> /-Mark Twain/
>
> *From:* schuma <mananself@gmail.com>
> *To:* 4D_Cubing@yahoogroups.com
> *Sent:* Friday, June 22, 2012 7:19 PM
> *Subject:* [MC4D] Re: New Solution Page: 2 Layer Simplex
>
> Hi Jacob,
>
> I think you did a good job explaining the method clearly. I have the
> following comments, nothing serious.
>
> (1) You said: "using the following method, you can consistently solve
> this puzzle in 6 moves or less." I don’t agree. There are five pieces
> to be solved. When the four stickers of a piece are in two 2-swap
> position, according to the paragraph starting with "If only two pieces
> match…" this piece requires two moves. So the total number of moves
> is ten, in the worst case. Is it right? Since the probability that a
> certain piece is in such a position is 1/4, the probability of this
> worst case is 1/4^5 ~ one thousandth. But it will occur.
>
> (2) The title of the wiki page is "Simplex 2^4". I like "2 layer
> simplex" better, as in the title of this post. "2^4" makes me think of
> 2x2x2x2 immediately, so seems to be misleading.
>
> (3) It would be good if you could mention the 3D analog of this
> puzzle: Pyraminx scrambled by only twisting the trivial tips. People
> will have an idea about what kind of task they are facing.
>
> Nan
>
> — In mailto:4D_Cubing%40yahoogroups.com, Melinda Green <melinda@…>
> wrote:
> >
> > I’ve worked through Jacob’s solution and was successful so it is
> > certainly easy and useful, especially for beginners. It may even be
> > useful for handling the corners of the 3-simplex and higher. Do
> check it
> > out.
> >
> > -Melinda
> >
> > On 6/21/2012 10:45 PM, Jacob wrote:
> > >
> > >
> > > http://wiki.superliminal.com/wiki/Simplex_2%5E4
> > > Hey guys. I just wanted to get the news out about the new page so if
> > > anyone has trouble solving this puzzle or would like to solve it in
> > > less moves, they could benefit from it. It’s not very polished up
> yet,
> > > but I don’t have much time to work on it right now (I’m getting ready
> > > to leave town for essentially the rest of the summer and may not
> get a
> > > chance while I’m gone). It may be a little vague in some spots, but I
> > > explained it to the best of my abilities for now. When I get
> > > screenshots and a flowchart of the method up, it should be
> > > a much easier to follow guide, but I won’t have that chance, in all
> > > likelyness, until late July. Let me know if there’s any questions
> > > about the method that I can clarify, and any general feedback at all
> > > would be apreciated.
> >
>
>
>
>
>
>