# Notation

There is a notation used in describing the movements you are doing on the cube:

So each letter tells you to move that face clockwise by 90 degrees, and a letter with an apostrophe tells you to move that face anticlockwise 90 degrees. U', for example, would be said as 'anti-up'. A letter with a 2 tells you to move that face by 180 degrees.

**It is important to remember that the moves are done if you were looking directly at the face.** Looking down at the cube, it looks like U and D should move the same way, but you have to remember that D is upside-down!

These letters are used in sequences known as **algorithms**, which are sets of instructions that achieve a specific goal. You just perform each move in the algorithm from left to right. For example, from a solved state the algorithm F2 B2 U2 D2 L2 R2 would achieve a pretty pattern like on the right.

Also, each of the smaller cubes that make up the Rubik's Cube is called a 'cubie'.

That's all you need to know for the beginners guide!

Other, less common letters for notation include x, y, z, M, E, S,and lower case for all of the normal faces:

So x is a whole-cube R, y is a whole-cube U, and z is a whole-cube F. E and S are almost never used, as they can be more easily performed by rotating the cube and doing an M or M'.

A lower case letter means a double layer turn, i.e. the face you are turning and the middle face next to it at the same time:

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