3x3x3 CUBE PIECES AND NOTATION

THE PIECES

Rubik's Cube 3x3x3
To be able to solve the cube we need to know it a little and to start we will know the parts of the cube. It has 26 pieces of 3 different types:

CENTERS

Rubik's cube centers
The cube has 6 centers, they are the pieces that only have 1 color. The centers never change position, they are always distributed in the same way.

EDGES

Edges of the Rubik's Cube
The cube has 12 edges, they are the pieces that have 2 different colors each.

CORNERS

Rubik's cube corners
The cube has 8 corners. The corners have 3 different colors each.

3x3x3 CUBE NOTATION

In order to be able to read and write series of movements, the notation that I will explain below is used.

The cube has 6 faces, each face is assigned a different letter, this letter would mean 1/4 turn of the face clockwise. The counterclockwise rotation is determined by putting an 'after the letter. If you have to move one side 1/2 turn put a 2 after the letter.

F: Front - Front
U: Up - Up
D: Down - Bottom
R: Right - Right
L: Left - Left
B: Back - Back

Clockwise rotation

Rubik's cube notation 3x3x3 counterclockwise

Rotation counterclockwise

Possible moves are as follows.

SIDE LAYERS OF THE CUBE

Clockwise:

L

F

R

B

U

D

Counterclockwise:

L'

F'

R'

B'

U'

D'

CENTRAL LAYERS OF THE CUBE

The middle layers also have an established notation, it is as follows:

M

M'

E

E'

S

S'

TWO LAYER MOVEMENTS

There are also 2-layer rotational movements, represented by lowercase lettering or a subsequent w.
I leave 4 examples:

u

d'

l

l'

CUBE ROTATION MOVEMENTS

There is also a notation indicating turns of the whole cube to change the face from where we look at it. They are as follows:

X

X'

Y

Y'

Z

Z'

DOUBLE MOVEMENTS

Double movements of a layer can be indicated using the number 2 after the letter. The direction of rotation is not relevant, because whether you do it clockwise or counterclockwise the result will be the same. Here are some examples:

U2

R2

B2