Saturday, December 18, 2010

Rubik's Cube

I have always really liked the idea of a Rubik's Cube since I first heard of it in 4th grade. The next year I got one and learned how to solve in within 2 months. From there on out I have been working towards lowering my time and simplifying the algorithms to make things easier on myself.

When someone solves a Rubik's Cube they USUALLY aren't just making things up as they go. Most "cubers" and their speedy counterparts, the "speedcubers", are using a very lengthy list of memorized algorithms that make up a method. Yeah crazy, scary, big word. Fact: algorithm simply means a VERY specific way to solve a problem. But before I get too much further, I shall digress. Each method has it's own order in which the "cubies" are each put into the correct position. To do this, each method is broken down into several steps. For example, the Fredrich (CFOP) method first creates a cross on the bottom, puts the corners into the bottom layer, then fills in the second layer, orients the top layer, and finally permutes it into the correct location. And viola...solved cube.

In order to accomplish each step in a method, it is first broken in all possible cases, to which a algorithm is assigned. So while solving, you are executing the current algorithm, whist "looking ahead" to determine which algorithm you are to use next. So an uber complex problem is thus simplified into easy memorization.

After you have everything memorized and have been solving for quite some time, you will notice yourself actually understanding what all your crazily quick finger motions are doing, and how things are affected by these algorithms. You will also understand why you must use such a complex algorithm to get a LL ( last-layer) cubie into place, without disturbing the solved portions of the cube. But all this understanding...ness takes the desire to get the end result (solved cube + amazement from all spectators) and devotion. You HAVE to be committed to learning the algorithms and getting more dexterity with your fingers.

Well, that about raps up my skimming view at Rubik's Cubes.

~V 1.0~

//If you have any topics you would like to see me write about, drop me a comment\\

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