Message #4109
From: Luna Harran <scarecrowfish@gmail.com>
Subject: Re: [MC4D] 2x2x2x2: mini-puzzle "twisty stacky 2^3"
Date: Mon, 03 Sep 2018 00:12:16 +0100
Solution outline (SPOILERS):
M S effectively swaps U/D with the outside corners. I will call this the
face swap. M S R2 U2 R2 Y’ would do this purely.
I will call the outside corners O.
Therefore,
-
Use the face swap plus general 2x2 methods to orient purple on U/D.
Guimond is good for this.
If you find yourself with one corner misoriented, face swap that one corner
to O, and use it to misorient another corner to set up a solvable case.
Alternatively, use Marc’s monoflip. -
Face swap the purple to O.
-
Solve like a 2^3.
As far as I know, this always works. Feel free to suggest any
optimisations.
~Luna
On Sun, 2 Sep 2018, 06:53 Melinda Green melinda@superliminal.com
[4D_Cubing], <4D_Cubing@yahoogroups.com> wrote:
>
>
> How clever you are, Marc! That’s a neat little puzzle. Some questions
> immediately come to mind:
>
> - Is "twisty stacky 2^3" the name or the description?
> - Have you solved it?
> - Does it have any relation to the 2^4 or any other puzzles? Your
> monoflip seems to hint at such a thing.
> - How does the difficulty compare to both the 2^3 and the 2^4?
> - Exactly how useful is it as a stepping stone to the full puzzle? I
> love how the puzzle currently doubles as a simple take-apart puzzle for
> young children, and is probably where even active cubers should start
> simply to get more familiar with the topology. Your puzzle may fit very
> nicely in difficulty between take-apart and full puzzle.
> - When solving this puzzle, can it be easily reduced to a pure 2^3, or
> are the restacking moves more integral? And does that even matter?
>
> The last question will probably take some time to answer, but perhaps you
> or other list members will be able to inform the other questions.
>
> What a nice little bonus puzzle!
>
> -Melinda
>
> On 9/1/2018 11:21 AM, Marc Ringuette ringuette@solarmirror.com
> [4D_Cubing] wrote:
>
> Hi, 4D puzzlers!
>
> If you already have Melinda’s 2x2x2x2, then you can easily try this fun
> mini-puzzle.
>
> Take half of your 2x2x2x2 puzzle (I put the pink-purple corners out, set
> aside the pink half, and use the purple half). This is the solved state.
>
> The puzzle is called the "twisty stacky 2^3", and the rules are as
> follows. The puzzle can be face-twisted like a 2^3 Rubik, plus you can
> make any of the three restacking moves E, M, and S. Scramble and solve!
>
> Here are two YouTube videos – a brief intro, and then a demo of my
> monoflip (yes, it has one!) for the puzzle.
>
> 30 Intro to twisty stacky 2^3 1m33s https://youtu.be/IyJ_QdT0C5U
> 31 Monoflip for twisty stacky 2^3 1m52s https://youtu.be/IFV4tVchH8U
>
> This cute little puzzle is a lot easier than the full 2x2x2x2, and yet
> its pieces still share the 12 possible orientations of the pieces of the
> full puzzle. I find it to be a useful training exercise for the larger
> puzzle, as well as being fun to play with.
>
> Enjoy!
> Marc
>
>
>
>
>
> ————————————
> Posted by: Marc Ringuette <ringuette@solarmirror.com> <ringuette@solarmirror.com>
> ————————————
>
>
> ————————————
>
> Yahoo Groups Links
>
>
>
>
>
>
On 2 Sep 2018 06:53, "Melinda Green melinda@superliminal.com [4D_Cubing]" <
4D_Cubing@yahoogroups.com> wrote:
How clever you are, Marc! That’s a neat little puzzle. Some questions
immediately come to mind:
- Is "twisty stacky 2^3" the name or the description?
- Have you solved it?
- Does it have any relation to the 2^4 or any other puzzles? Your
monoflip seems to hint at such a thing. - How does the difficulty compare to both the 2^3 and the 2^4?
- Exactly how useful is it as a stepping stone to the full puzzle? I
love how the puzzle currently doubles as a simple take-apart puzzle for
young children, and is probably where even active cubers should start
simply to get more familiar with the topology. Your puzzle may fit very
nicely in difficulty between take-apart and full puzzle. - When solving this puzzle, can it be easily reduced to a pure 2^3, or
are the restacking moves more integral? And does that even matter?
The last question will probably take some time to answer, but perhaps you
or other list members will be able to inform the other questions.
What a nice little bonus puzzle!
-Melinda
On 9/1/2018 11:21 AM, Marc Ringuette ringuette@solarmirror.com [4D_Cubing]
wrote:
Hi, 4D puzzlers!
If you already have Melinda’s 2x2x2x2, then you can easily try this fun
mini-puzzle.
Take half of your 2x2x2x2 puzzle (I put the pink-purple corners out, set
aside the pink half, and use the purple half). This is the solved state.
The puzzle is called the "twisty stacky 2^3", and the rules are as
follows. The puzzle can be face-twisted like a 2^3 Rubik, plus you can
make any of the three restacking moves E, M, and S. Scramble and solve!
Here are two YouTube videos – a brief intro, and then a demo of my
monoflip (yes, it has one!) for the puzzle.
30 Intro to twisty stacky 2^3 1m33s https://youtu.be/IyJ_QdT0C5U<br>
31 Monoflip for twisty stacky 2^3 1m52s https://youtu.be/IFV4tVchH8U
This cute little puzzle is a lot easier than the full 2x2x2x2, and yet
its pieces still share the 12 possible orientations of the pieces of the
full puzzle. I find it to be a useful training exercise for the larger
puzzle, as well as being fun to play with.
Enjoy!
Marc
————————————
Posted by: Marc Ringuette <ringuette@solarmirror.com>
<ringuette@solarmirror.com>
————————————
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