Rubiks Cube

Rubiks Cube

Damari Grant 1. Introduction A. Have you wondered how to do the Rubiks ? B. How many times have you pick up a cube and said damn it wish I could complete the hold thing and not just on side or finish without sticker peeling. C. In time of boredom or just a mind opener its nice to baffle your continuesly with speed trials, always trying to beat the time before. D. Within this informative speech I hope to open your eyes to the least complicated puzzle that was developed in the late 70’s early 80’s E. 1. Today I will give you a brief history on the cube. , Then I will explain what a algorithms and what an algorithm is 3. Finally I will demonstrate the putting together this masterpiece call a rubiks cube. 2. Body A. Erno Rubik is a Hungarian inventor whose name is known globally due to the popularity of the cube puzzle that bears his name. Born in Budapest, Rubik studied sculpture in college, then architecture at the Academy of Applied Arts and Design, where he taught interior design and invented his world-famous puzzle cube. His invention went on to become the most popular puzzle game of all time, making Rubik the first self-made millionaire from the communist bloc.

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B. While working as a professor in Budapest, Rubik became intrigued with a structural design problem. He wanted to construct a cube with adjustable squares on each side that would move independently without the entire structure falling apart. In 1974, he came up with a solution, hand-carved the blocks and marked each side of the cube with a different color. He then tested his invention, twisting the blocks in various ways to see if they held together. It was only when he discovered how challenging it was to realign the colors to match on each side that he realized his invention could be used as a puzzle. B.

What is a algorithm? A algorithm is a set of rules to be followed in calculation or other problem-solving operations. These terms will be used in algorithms of this solution. • U = Upper (top) face • D = Down (bottom) face • L = Left face • R = Right face • F = Front face • B = Back face • A letter by itself means to turn that face clockwise 90 degrees. • A letter with and apostophe after it means to turn that face counterclockwise 90 degrees. • A letter with a 2 after it means to turn that face 180 degrees. To decide whether to turn clockwise or counterclockwise, pretend that you are looking at the face you are turning.

In the algorithms, the core of the cube should not be turned. Now that I have covered the basic history of the inventor and what an algorithm and the terms I will cover the simplest way to complete this puzzle. C. The basic strategy in solving the cube is to solve it in layers. Try and visualize the cube as a 3×3 building, you have to complete each level before moving on. There’s the foundation, the first level, second level, third level, and roof or top. There are three types of cubes on the Rubik’s cube, one with one color, one with two colors, and one with three colors, which are known as the center, the edges, and the corners.

Knowing these names is necessary in following the different moves and patterns. When having the cube directly facing you, the side facing you is known as the front face. The side facing away from you is the back. The sides are noted as the left and right face, and the face on the top and bottom are simply noted as the top and bottom faces. Play around with the cube and get to know what faces your moving and which way they are moving, clockwise or counterclockwise. Once you are used to this, we can finally begin the algorithms or steps to solve the cube.

The first step is to get all the corner pieces of the face to face the same direction. First, pick a color to start with, preferably white. Find one of the white corner pieces (white, blue, and red), and have it on the same face as the middle piece. Turn the entire cube so that the original corner is at the upper left hand part of the cube. Find another corner piece with the same two colors, white and blue, and maneuver this to the bottom right hand corner of the cube. Once this is done, do the same to the other two corners. If done correctly, you should have an “X” on the face, which is all the middle and all the corner pieces in place.

The next step is to place the edges and to finish the top layer of the cube. To do this, turn the bottom and middle layers until one of the edges are lined up with the color spot it is going to be in. If the edge is on the bottom layer, do the following move: bottom clockwise, top middle down, bottom counter clockwise, top middle up. If the white edge is on the side, have the edge on the side it wants to go to and do and do the following move: middle clockwise, right side down, middle counter clockwise, right side up. Keep doing this until the first layer is completed.

The third step is to align the center piece to the first layer colors, and to place the middle layer edges. Have the solid face facing the bottom. You should have a pattern of three solid colors on the bottom and one in the middle, for each color. Find a top edge with the same color as the middle and line them up, so that you should have an upside down “T”. Once you have that, do the following steps: Top clockwise, right clockwise, top counter clockwise, right side counter clockwise, top counter clockwise, face counter clockwise, top clockwise, face clockwise.

Keep following this step until the middle layer is complete. Once this is done, 2/3 of the cube is complete. The next step is to form a cross. To do this choose any face, and do the following move: face clockwise, top clockwise, right clockwise, top counter clockwise, right counter clockwise, face counter clockwise. Once you perform that move, have the two of the edges at the 9:00 and 12:00 position. Once they are in that position, repeat the step above. Now you should have a cross. The next step is to get the top face all one color. To do this, have the ross on the top face, and do the following move: right side up, top clockwise, right side down, top clockwise, right side up, top clockwise, top clockwise, right side down. If you have the top face one color, you can move onto the next step. If you do not have the top face one color, you should have a cross and one of the corner pieces on the top face. Place the corner piece, so that it is on the bottom left of the cross, and repeat the step above. The objective of the next step is to get all the top corners in their correct positions.

On the top layer, find two pieces with the same color on the same side. Face these two pieces away from you, so that they are on the backside. Once this is done, do the following move: right side down, face clockwise, right side down, backside clockwise twice, right side up, face counter clockwise, right side down, backside clockwise twice, right side clockwise twice. Now that the top corners are in their correct positions, we can move onto the final step. The final step is to put the top edges in the correct places. Position the corners so they match with their corresponding colors.

Pick any face, and if you have one face that is completely solid, face that side away from you. Look at the edges color and decide if it wants to go to the left or the right. If it wants to go to the right, do the following move: turn the front face twice, top counter clockwise, left side down, right side down, face twice, left side up, right side up, top counter clockwise, front face twice. That completes this puzzle of Rubik. Conclude. I went over a brief history the algorithms and a demonstration I hope you find the time to conquer a great mind fuck thank you


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