3 year old solves rubic's cube.

[Steph]

I hope you are allowed a peek before you are blindfolded?
Otherwise, you really need to be very good

 

[Turner]

You can even solve it blindfolded, it's not that hard if you know how.

Yeah, I saw that video too. That was cool.

 

[Kyriakos]

I am not sure if i owned one of them, although i had come across them as a child. However it seems unlikely that a 3-year old is solving it using something related to probabilities; if anything she most probably is instinctively memorising patterns.
Good work though I cannot even remember anything from when i was 3 years old..

 

[Azash]

. Now I feel dumb. I could never figure that thing out when I was a kid. I probably still can't. Perhaps I should just kill myself while I have the chance.

edit: what makes me feel good is now matter how smart she is, she'll never make as much money as me. Unless she comes to the U.S.

The first time took me a week.

 

[Azash]

I am not sure if i owned one of them, although i had come across them as a child. However it seems unlikely that a 3-year old is solving it using something related to probabilities; if anything she most probably is instinctively memorising patterns.
Good work though I cannot even remember anything from when i was 3 years old..

It's also possible she's learned specifically designed algorithms (Such as "flip these tree pieces")

 

[Kyriakos]

Yes this is most probable However i wonder if there are models which compute the probabilities, since it is a finite environment of twisting cubes. It should be possible to calculate all the probabilities, and generilise, although since i do not have the cube infront of me i cannot really begin to examine its complexity.
However a small child can always identify patterns, and then generalise on them not entirely consciously (a bit like the "instinctive mathematics" when the mathematician is not fully able to provide a proof for his moves, but feels that he is nearing on a solution anyway). This is probably happening because in a deeper part of the mind there is already a model of a solution, but it has not been brought to immediate consciousness, much like when one has forgotten something and can feel that he is near remembering it, but cannot quite manage to do it

 

[Azash]

By the way, I'll note that you will need, oh, 4 or 5 algorithms to be able to solve a Rubik's Cube (3x3x3) in about 2-3 minutes. All of them consist of 4-8 quarter-twists of a single face of the cube.

 

[Mirc]

By the way, I'll note that you will need, oh, 4 or 5 algorithms to be able to solve a Rubik's Cube (3x3x3) in about 2-3 minutes. All of them consist of 4-8 quarter-twists of a single face of the cube.

Not if you know or have an idea of the starting position of the cube.

 

[Azash]

No, in all cases. All you need to know along with those is how to orientate the two-sided edge pieces of the first layer you start with.

Here:

1. Choose a face to start with and orientate the layer's edges, no algorithms needed.
2. Use a 3-twist algorithm (Alg. A) to insert the corners of the first layer.
3. Put in the edge bits of the second layer using Alg. B, thus completing the F2L (First two layers).
4. Orientate and permutate the LL (last layer) corners using Alg. C and D.
5. Orientate and permutate the LL edges using Alg. B and E.

 

[Mirc]

No, in all cases. All you need to know along with those is how to orientate the two-sided edge pieces of the first layer you start with.

Here:

1. Choose a face to start with and orientate the layer's edges, no algorithms needed.
2. Use a 3-twist algorithm (Alg. A) to insert the corners of the first layer.
3. Put in the edge bits of the second layer using Alg. B, thus completing the F2L (First two layers).
4. Orientate and permutate the LL (last layer) corners using Alg. C and D.
5. Orientate and permutate the LL edges using Alg. B and E.

You are right, but the cube can be given in a position from where you don't need to move it a lot and a child can remember what to do.

 

[Steph]

1. Choose a face to start with and orientate the layer's edges, no algorithms needed.
2. Use a 3-twist algorithm (Alg. A) to insert the corners of the first layer.
3. Put in the edge bits of the second layer using Alg. B, thus completing the F2L (First two layers).
4. Orientate and permutate the LL (last layer) corners using Alg. C and D.
5. Orientate and permutate the LL edges using Alg. B and E.

I'm not sure Alg B can be used for 3 and 5

 

[AL_DA_GREAT]

My dad once met a German women who could do what that kid does. I have never heard of a kid doing it though.

 

[Urederra]

My dad once met a German women who could do what that kid does. I have never heard of a kid doing it though.

Oh... a woman solving the Rubick's Cube. To the stake, to the stake...:j/k:

Seriously, I am with Steph, Alg B cannot be used for step 3 and 5. Step 3 needs a more complicated algorithm and step 5 needs an even more complicated one.

I was able to solve it when I was 11 or 12 yo, and is just applying algorithms, Amazing video, anyway.

 

[Azash]

I'm not sure Alg B can be used for 3 and 5

I'm referring to an algorithm which switches around three edge pieces. I'm not talking about it being economical, I'm pointing out you need very little learning to solve a 3x3x3.

 

[Azash]

You are right, but the cube can be given in a position from where you don't need to move it a lot and a child can remember what to do.

Unless it was jumbled the standard way (20 quarter twists) I don't see how this would be valid news

 

[Urederra]

I'm referring to an algorithm which switches around three edge pieces. I'm not talking about it being economical, I'm pointing out you need very little learning to solve a 3x3x3.

For the last step you'll need the algorithm that switches around only 2 edge pieces, which is quite complicated to learn. Although you can solve it with the one you are talking about, but only if you are lucky.

 

[Azash]

Err, why on earth would you need that? Or are you referring to the corners?

 

[Urederra]

Oh. yep, the corners, sorry.

 

[civconquer3000]

I think it's a mix of her being trained with different algorithms and a little random movement. The training makes some sense because China's training their kids to win the 2008 Olympics. And maybe China's hosting some Rubik's Cube tournament in 2012. Anyway... I noticed that when she completed it she kept going. So I don't think she's a super-genius.

 

[CartesianFart]

I remember my mom gave me a rubic's cube and mixed it up when I was 5 years old and made some suggestion that I should give it a try-An hour later I gave it back to her and finished it by simply taking the colour stickers and re-arranged them into their original place.

Beat that you math nerds!