Thursday, April 7, 2016

How to solve a Rubik's cube

Okay, so I did a speech on how to solve a Rubik’s cube, so I figured that it would be something good to blog about. So, if you don’t know how to solve one, you should be able to learn from this description or at least be able to get an understanding of how to solve one.
In order to solve a standard 3 x 3 x 3 cube, you have to first denote the sides of the cube so you know which sides to turn. If you have the standard cube, which has colors white, blue, red, green, orange, and yellow, you can look at the blue side as the front side F and red as the top side U. (Note: you will be able to tell which side is which by the color of the centers). On the right R will be white, left L will be yellow, bottom D orange, and back B will be green. So, first pick a color you want to start with. A letter means turn that side clockwise once, a letter with a ‘ symbol after it just means turn that same side counterclockwise. 
You have to solve the Rubik’s cube in layers, so 1st layer, 2nd, then 3rd. So, line up the edge pieces on the side you want to start with, making sure the edge matches both centers (for example, the red and white edge piece should be touching both the red and white centers). After all four edge pieces are lined in the correct spots, you can now work on the corners. The first algorithm you will use is  R’, D, R, D’. Repeat this for the 4 corners. If done correctly, the entire first layer should be solved with the edges lined up with the centers of the 2nd layer.
The next step is to put the 2nd layer edge pieces in the right spots. You will use the 2nd algorithm  U, R, U’, R’, U’, F’, U, F or the inverse  U’, L’, U, L, U, F, U’, F’. Repeat this for all four edges. If done right, 2 layers of the cube will be solved.

The last layer involves first making an + much like the first layer. You’ll want to use  F, R, U, R’, U’, F’. This will make a + sign on the unsolved side, but the edges might not be lined up properly, so use  R, U, R’, U, R, U2, R’ to line those up. Last part is to put the final 4 corner pieces into the correct positions. Use this algorithm:  U, R, U’ L’, U, R’, U’ L. Then you’ll want to orientate those corners to finally solve the cube, just repeat the first algorithm: R’, D, R, D’. If done correctly, this will solve a Rubik’s cube. I know this isn’t terribly enlightening without diagrams or pictures, but it’s difficult to explain in written words. The best way is to watch a tutorial, where a person can explain something and can show you at the same time.  

8 comments:

  1. Though I will probably never be able to do this, I liked that you tried to explain it. My high school calculus teacher loved Rubik's cubes, and he could solve them with his hands behind his back.

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  2. So I went to John Glenn and there was this whole school year where almost everyone in the school had a Rubik's Cube and were obsessed with finding algorithms to solve them. It got so bad they started telling students to stop bringing them to school.

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  4. This is interesting. I have always wanted solve a rubies cube. Thanks. I will try it this way.

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  5. Very useful for how to solve a Rubik's cube! Thanks.

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  6. I used to know how to solve one but I don't really remember the way I used to do it.

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  7. Man I never tried a Rubics cube before but after seeing how complicated it is I might not ever, but this is really well thought out and a great formula for solving one.

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  8. Man I never tried a Rubics cube before but after seeing how complicated it is I might not ever, but this is really well thought out and a great formula for solving one.

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