## 3x3x3 cube: Notation

Here we sum up the basic ideas: solours, faces notation, movements... It's essential for those starting with the 3x3x3 cube.

### Faces

They are the surfaces containing 9 stickers. There are six faces.

The English notation is:

• U: Top face
• F: Front face
• R: Right face
• B: Back face
• L: Left face
• D: Down face

### Centres

They contain the stickers that define the colour of the face.

### Edges

They are the pieces containing two colours. They are 12 edges.

### Corners

They are the pieces containing three colours. There are 8 corner pieces.

### Turns

• The blue arrow indicates clockwise direction. To carry out the movement we write the letter of the face.

For example: R

• La flecha amarilla indica giro antihorario (sentido contrario a las agujas del reloj). When we do the movement, we write the letter of the face and an apostrophe.

For example: R' (read "R prime")

• Another important turn is the double one (180 degrees). It consists of turning the same face twice. We write the letter, and "2".

For example: R2

### Rotations

• In the three axes, the blue arrow indicates clockwise direction. When there is a clockwise rotation we write just the letter of the axis.

For example: x

• the yellow arrow indicates counterclockwise direction. When there is a counterclockwise rotation it will be indicated with an apostrophe.

Ejemplo: y' ("y prime")

• If we want to do a double turn we write the number "2" after the letter of the axis.

For example: z2