How To Solve A Rubiks Cube - Introduction

How To Solve A Rubiks Cube

How to solve a Rubiks Cube is the recurrent question that we make ourselves when we see a scrambled cube for the first time.

Having billions of combinations, it is nearly impossible to solve a Rubiks Cube by trial and error.

There are several ways to solve a Rubiks Cube when you first start out.

Here I will show in full detail how to solve a Rubiks Cube using the easiest methods for solving the cube for beginners.

The most popular model is the Standard Cube (3x3x3). Other models came later: the Junior Cube (2x2x2), the Revenge Cube (4x4x4), the Professor Cube (5x5x5).

The simplest method of resolution for all the models, is to solve the cube by layers, beginning from the Bottom layer to the Top layer.

How To Solve A Rubiks Cube
How To Solve A Rubiks Cube

In this series of tutorials we will see in detail first how to solve the Junior Cube.

Once learned, the same technique can be applied to the resolution of the Standard Cube.

Finally, the method learned in the resolution of the Standard Cube, will be the base of resolution of more complex cubes.

Erno Rubik - 1980's
Erno Rubik - 1980's
First Wooden Model
First Wooden Model

Rubiks Cube History

Erno Rubik was an architecture professor and lecturer at the Department of Interior Design at the Academy of Applied Arts and Crafts in Budapest, Hungary.

He was interested in the geometry of objects 3D and their construction. He wanted a working model to help explain three-dimensional geometry.

He made a wooden model in which twenty-six individual little cubes make up a big Cube.

Each layer of nine small cubes can twist. Any three squares in a row can join a new layer (except diagonally).

The initial attempt of Rubik of using elastic bands failed. In the spring of 1974, watching pebbles in the Danube River whose edges had been smoothed away, Rubik got the idea for a cylindrical internal mechanism to allow easy manipulation of his model.

As soon as the model worked, he marked each side with paper of different color, and started twisting the cube. Soon he discovered that it was not so easy to realign the colors.

Rubik discovered certain sequences of moves for rearranging just a few cubies at a time. It took him a month of practice to solve the cube for the first time.

Hungarian patent HU170062
Hungarian patent HU170062

Rubik calls "Magic Cube" ("Buvuos Kocka") at his invention.

He obtained Hungarian patent HU170062 and left it with a small toy making company in Budapest, Ideal Toys, which renamed it "Rubik's Cube" in 1980.

Rubik Cube Models
Rubik Cube Models
The Core Piece
The Core Piece

Models and Construction

The Rubik's Cube comes in four versions :

  • 2×2×2 - Pocket Cube, Mini Cube, Junior Cube, or Ice Cube.
  • 3×3×3 - Standard Cube.
  • 4×4×4 - Rubik's Revenge.
  • 5×5×5 - Professor's Cube.

The Standard Cube consists of twenty-six unique miniature cubes.

The core piece consists of three intersecting axes holding the six centre squares, letting them rotate.

Twenty smaller plastic pieces which fit into the core piece form the assembled Cube.

The Cube can be taken apart (not recommended, solve it!) by turning one side through a 45° angle and lever an edge cube out using a screwdriver.

 
 

Terminology and Notation

If you want to learn how to solve a Rubiks Cube, there is some terminology that you have to know that describes the pieces and the movements.

All the cubes have six faces (sides of the cube), with the following notations:

  • Upper Face - U     
  • Down Face  - D     
  • Left Face  - L     
  • Right Face - R     
  • Front Face - F     
  • Back Face  - B

Each face can be turned either clockwise or counter-clockwise (to you when looking at the cube), with respect to the center.

  • clockwise         - W/indication
  • counter-clockwise - ' ("prime")

A face can be rotated 90 or 180 degrees.

  • 90-degre   - Without indication
  • 180-degree - 2

The notacion of a movement is indicated as : face, turn, degree.

  • Right Face   cw 90-degree         - R
  • Down  Face  ccw 90-degree         - D' ("D prime") 
  • Front Face (cw or ccw) 180-degree - F2 ("F squared") 

How To Solve A Rubiks Cube - Algorithm

Algorithm is the name given to the sequence of moves that solve a scrambled cube.

An algorithm that solves a Rubiks Cube in the least possible number of moves is known as 'God's algorithm'.

The easiest way to solve a Rubiks Cube is layer by layer. It is very difficult to solve face by face.

Next follows the description of the methods to solve the different Rubik Cubes, with a brief explanation of the method and a step-by-step description of the algorithm.

Following these steps and with practice, very soon you will be solving the Cube in under a minute.

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        Acknowledgement : Table Of Contents by Darkside
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Tom Solving The Cube In 25 Seconds

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Comments 12 comments

Losers 7 years ago

dumb vid!!!!! hehehee. his such dumb loser


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StefanMDP 7 years ago Author

He didn't read this tutorial. :)


jerry 7 years ago

hahaha


mimi 7 years ago

very funny !


How To Solve A Rubix Cube 7 years ago

very funny ! blending rubix cube


7 years ago

why the hell would u ever blend a rubiks cube that is the dumbest thing ever that guy is an idoit


StefanMDP profile image

StefanMDP 7 years ago Author

LOL...

Don't take it so seriously. He has blended many things.

He do it in order to show the power of his blender. It is so good that it blends any thing.

See more of his videos Here: http://www.willitblend.com/


Rose 6 years ago

ok that was just stupid!!!!!


Smeone765 6 years ago

Hey, I'm not sure, bzt is that cube in ''the core piece'' picture FAKE?? I mean, put a Hungarian cube in...


StefanMDP profile image

StefanMDP 6 years ago Author

Hi Smeone, nice to see you again.

Why do you say that it is fake? That is the core piece of a 3x3x3 cube.


Smeone765 6 years ago

Well, those kind of cubes like on the photos, came first to my country. Some time later the real rubik's cubes came (you know, blue box with a hole in it, says: buvos kocka(hungarian) and rubik's cube(english)).

Just so you know... I don't want to offend you.


StefanMDP profile image

StefanMDP 6 years ago Author

Hi Smeone.

Yes, I follow you. But you know, this is a tutorial on how to solve the cube, not the history of the evolution of the design (BTW, a good topic for another article).

No offence taken, You are always welcome :)

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