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5 Ways to Collect a Rubik's Cube
18:11 19/05/2014
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Ekaterina Chevalier Category: Memos and instructions
5 Ways to Collect a Rubik's Cube
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On May 19, 1974, the Hungarian sculptor and architect Erno Rubik invented the famous puzzle the Rubik's Cube.
When and how was the Rubik's Cube invented?
In 1974, Erno Rubik taught industrial design and architecture to Hungarian students.
According to one version, the Rubik's Cube was invented as a textbook to clearly explain the basics of mathematical group theory.
The inventor's task was to make individual multi colored cubes rotate freely in their places, without violating the constructive unity of the entire device.
Rubik's friends and students of the Academy acted as the first testers of the puzzle.
In 1975, Rubik received a patent for his invention.
However, the release of an experimental industrial batch of cubes took place only at the end of 1977.
The first manufacturer of the cube was a small Budapest cooperative, which released the cube as a New Year's toy for Christmas in 1978.
Related article
Volgograd man conquers the world by collecting a Rubik's Cube
One day, a German entrepreneur Tibor Lakzi saw a Rubik's cube in the hands of a waiter.
Lakzi, who is fond of mathematics, admired the toy and started promoting it together with Tom Kremer, a successful inventor of games.
As a result of their efforts, a real "cubic" invasion began in the early 1980s.
At that time, about 100 million "legal cubes" were released, and even more — fakes.
How long does it take to collect a "Rubik's Cube"?
People who are fond of high speed assembly of a Rubik's cube are called speedcubers (from the English "speed" — speed).
And the high speed assembly itself is speedcubing.
Official competitions for the high speed assembly of the Rubik's Cube are regularly held by the World Cube Association.
The current record for the speed of assembling the cube was set by Mats Wolf, he assembled the cube in 5.55 seconds.
The current world record belongs to Felix Zemdegs and is 5.66 seconds.
His unofficial record is 4.79 seconds.
Before you start assembling a Rubik's Cube, it is recommended to disassemble it into parts and reassemble it again to make sure that the cube is folded correctly.
A way for beginners
Assembly Stages:
1. cross in the first layer;
2. corners of the first layer;
3. edges of the middle layer;
4.
the cross in the last layer;
5. placing the edges of the last layer;
6. arrangement of the corners of the last layer;
7. reversal of the corners of the last layer.
Beginners should, in addition to the video, have instructions in front of their eyes to make it easier to assemble the puzzle.
At the moment, one of the most popular methods of high speed assembly is the Jessica Friedrich method.
In this assembly, you do not need to memorize a large number of formulas, the main thing is to understand the principle.
Assembly of the cross on one of the sides.
Assembling the first layer at the same time as the second.
3. Orientation of the elements of the top layer.
4. Rearranging the elements of the top layer.
Video
Valery Morozov's method (intuitive)
The task of this method is not to give ready made formulas for memorizing, but to show the principles of assembly.
Assembly diagram:
1. Assemble 8 corner elements.
2. The 4 edge elements in the middle layer are assembled into a cross on any of the side faces.
3. The 8 remaining edge elements are assembled into correct pairs.
4. 6 centers are installed each on its own face.
The method for assembling a 5×5 cube is designed for beginners who can at least assemble 3×3.
For advanced users
How to collect a Rubik's Cube in 31 moves.
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