Please send the Rubik's Cube tutorial.

The letter means: R= right; L= left; U= upward; F= before; D= downward. The recovery step is divided into seven steps:

First, the bottom crosses,

The yellow center is the top and the white center is the bottom. Spell a small flower at the top. The flower heart must be yellow and the petals must be white.

Select a petal, align its side color with the center of the same color, and then flip them to the bottom. The other three petals do the same, and a cross will come out when it is finished.

The order of cross blocks must be blue and white → red and white → green and white → orange and white.

Second, the first floor,

Spell the four corner blocks on the first floor, find the corner block with white, turn to the top of the corresponding position, and observe the white direction:

Divided into the following situations:

1. Right, formula: r ur';

2. On the left, formula: L' u' l

3.Up, formula: (r u r' u') 3;

4. The corner block is at the bottom, and the white face is right. Formula: (R U R' U')2.

The third and second floors,

Find a square without yellow on the top floor and align its side color with the center of the same color to form a big T.

Then see where this prism goes.

Location: The second floor on the left facing your face is the left front, and the second floor on the right is the right front.

1. Right front homing, formula: U R U' R U' F' U F

2. Left front homing, formula: U' L' U L U F U' F'.

Fourth, the top crosses,

After spelling the first two floors, there will be four situations: one word, half past three, dot and cross.

Because this step is crossover, the first three situations should also be crossover. The following is the formula for changing the cross.

The word 1. becomes a cross, and the formula is: f r u r' u' f

2. Cross at 3: 30, formula: f r u r 'u 'f.

3. The dot-to-cross is a formula, from 1 to 10 to 3: 30, and then from 3: 30 to cross.

Fifth, the top surface,

Yellow cross down, white face up. Look for the yellow corner in the lower right corner and observe the yellow direction.

Divided into two situations:

1. Face right, formula: (r ur' u') 2;

2. Forward, formula: (U R U' R')2.

Sixth, the vertex angle is returned.

Find two corner blocks of the same color on the top floor side, and make them face the right hand direction. Make the formula: x' r2d2r' u' r2r' u r'.

7. Restore Rubik's Cube

After returning to the four vertex angles, there are two kinds:

The first case:

Put one of the four sides together, with the yellow side facing up and the spelled side facing yourself.

Formula: r u r' u', l u l u, u u r', u l u l.

If the Rubik's Cube is not restored, do it again until it is restored.

The second case:

There are no splicing faces on the four sides. Choose one side to face yourself and the yellow side to face up.

Then do the above formula once, and you will have the edge. Face the spelled side to yourself and keep making formulas.

Until the cube is restored.