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Rubik's Cube Hell

Darya Akbari
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My daughter recently asked me to solve Rubik's cube for her
[ November 11, 2007: Message edited by: Darya Akbari ]

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Arjun Shastry
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Rubik Cube


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Jim Yingst
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Not sure what's hellacious about that. Disassembling it like that is the easy way.


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Darya Akbari
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Originally posted by Jim Yingst:
Not sure what's hellacious about that. Disassembling it like that is the easy way.


Well, that was the solution my daughter came up with. She expects a more intelligent solution from me .

Thanks for the link Arjun. I didn't know that there is a 4x4 Rubik Cube . Let me first try to get that 3x3 cube right
fred rosenberger
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  12

I recently saw a video of a contest where people try to solve the normal 3x3 cube as fast as they can.

Blindfolded.

They can look at it for a while, but then they put on the blindfold and don't get to look at it again until they announce they are done.

One guy did it in something like a minute.


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Darya Akbari
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Originally posted by Fred Rosenberger:
I recently saw a video of a contest where people try to solve the normal 3x3 cube as fast as they can.

Blindfolded.

They can look at it for a while, but then they put on the blindfold and don't get to look at it again until they announce they are done.

One guy did it in something like a minute.


Do you mean I should try it blindfolded
Christophe Verré
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  16

There are videos at YouTube about people solving it in less than a minute. There's an interesting page at Wikipedia too.


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Ulf Dittmer
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  27
Videos of this can be deceiving. One of the oldest tricks (20 years plus) is to show a video backwards, so where someone appears to solve the cube in a very short time, that may just be a video of the guy messing up a solved cube, shown backwards. Same for the blindfold stuff. (I'm not saying that that's necessarily what's happening here - just a possibility to keep in mind).


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fred rosenberger
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  12

I had time to find the one i was looking for.

Clicky

It's quite obvious they're not running it backwards.
Christophe Verré
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  16

Wow, impressive
Mark Spritzler
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    6

My fastest time was 51 seconds in 82 in an official competition. My first solving of the cube was in January 25, 1981, one hour before Super Bowl 15. About a year later all those books started to come out on how to solve the cube. It was using the book's solution that I could solve the puzzle quicker.

I probably haven't touched a cube in at least 15+ years.

As for the blindfolding, if you can look at it as long as possible you can get a good mental image of what you need to do to solve it. The biggest issue is if you ever get the image lost, then you have no idea where you are at.

Mark


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marc weber
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Originally posted by Ulf Dittmer:
Videos of this can be deceiving. One of the oldest tricks (20 years plus) is to show a video backwards...

Clever!

I'm no Rubik's expert, but my understanding is that you can reassemble the parts so that it's impossible to solve, so just don't put it back together randomly.


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marc weber
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Back in the 80's, I bought 27 Rubik's Revenge cubes (4x4x4) from a toy store that was going out of business. I arranged them on a shelf to look like a mammoth 12x12 cube.
Darya Akbari
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Originally posted by Fred Rosenberger:
I had time to find the one i was looking for.

Clicky

It's quite obvious they're not running it backwards.


Unbelievable
Darya Akbari
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Originally posted by Mark Spritzler:
My first solving of the cube was in January 25, 1981


You even remember the exact date ? I never had the drive to solve that thing and threw it away same time as you got your one solved Mark. But now my daughter is coming back with it making me crazy. I thought no one care about it anymore .
[ November 12, 2007: Message edited by: Darya Akbari ]
Darya Akbari
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Originally posted by marc weber:
Back in the 80's, I bought 27 Rubik's Revenge cubes (4x4x4)


I first have to solve the simple version (3x3). Not to be confused with this one:

marc weber
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Originally posted by Darya Akbari:
...I first have to solve the simple version (3x3)...

I memorized a process from a book, and got fast at doing it that way, but I never actually solved it myself.
Christophe Verré
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  16

There are also some videos on YouTube with a guy teaching how to solve it using basic algorithms. There's another one where people solve the cube with.... their feet I leave you look for that.
Henry Wong
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  39

Originally posted by marc weber:

I'm no Rubik's expert, but my understanding is that you can reassemble the parts so that it's impossible to solve, so just don't put it back together randomly.


When I looked into this many many years ago, I noticed that...

The sides are flipped in pairs. It is not possible to flip an edge without flipping another edge.

The corners are rotated in pairs. It is not possible to rotate a corner (clockwise) without rotating another corner (counter clockwise).

So don't put it back together randomly. It is very easy to make it not solvable if you do.

Henry


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Pat Farrell
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    5

Originally posted by marc weber:
you can reassemble the parts so that it's impossible to solve, so just don't put it back together randomly.


Yes, but its fairly easy to reassemble it properly. Just note that the center faces don't move, Put the pieces back to the colors match the center piece of the two (or three) sides it has.

Back in the first fad, one of my friends' kids pulled off the color stickers and solved it that way. They had to pull the stickers off and put them on correctly to have any prayer of sanity.
Darya Akbari
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Originally posted by Mark Spritzler:
My fastest time was 51 seconds in 82 in an official competition.


While I still try to solve the 3x3 cube why don't you give a try to the 5x5 cube ?

Darya Akbari
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Thank you Mr. Rubik :roll:

Darya Akbari
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It took Ern� Rubik 1 month of extensive practice to resolve for the first time its puzzle .
marc weber
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Originally posted by Darya Akbari:
...why don't you give a try to the 5x5 cube ? ...

I'm still working on the 1x1x1 version. :roll:

Perhaps this is an uninformed question, but do more squares necessarily make the puzzle more difficult? Or might it actually make it easier because less surface area is affected by each rotation?
Darya Akbari
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Originally posted by marc weber:

I'm still working on the 1x1x1 version. :roll:


Darya Akbari
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This one is for Mark

Rubik's 5x5x5 in 2:22
Rogerio Kioshi
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Why don't you use this:
http://wrongway.org/cube/solve.html

Say your daughter you have to check something on the net and take the cube with you. This way you can solve the cube without the need of broking it!


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