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A pair of color blocks on the last two sides of the third-order Rubik's cube are incorrect.
Then put a cross on the upward side.

Cross formula:

Formula 1 right-up-front-up+front+right+

Formula 2 Right-Front-Front+Up+Right+

When these two formulas are used. Spell two opposite sides with 1 point, and then you need 2. Think of the upper layer of the Rubik's cube as a clock.

Think of its two upturned edges as an hour hand and a minute hand, which should be placed on the children's table at six o'clock sharp. Using equation 2

When you put the Rubik's Cube at nine o'clock sharp, use the formula 1,

The cross spelled out at this time is not necessarily in the right position. It's possible for one person, and it's possible for two people. Maybe none of them are right, because the upper level can

Free rotation. At this time, the formula will be changed. When using the formula, only one edge is crossed. In other words, when the other three are wrong, the cross formula will be used.

Cross formula:

Formula 1 right-up-right+up-right-up 2 right+

Equation 2 Left+Up+Left-Up+Left+Up 2 **

Using the formula 1 will move these three wrong edges clockwise by one position. Equation 2 is the opposite.

When finished, there are only four corners left. Now, in order to restore the corner, we need to use the corner formula.

Rotation angle formula:

Formula 1 Up+Right+Up-Left-Up+Right-Up-Left+

Formula 2 Up-Left-Up+Right+Up-Left+Up+Right-

Usage: The formula 1 is used to move the left front, left rear and right rear one position counterclockwise, but the left rear angle mainly turns to the left front.

Equation 2 is to move these three angles clockwise. But mainly turn right back to the right front.

When using 1, the right rear corner will move. If this angle has been restored. Just turn the one on the right. Using 2 will upset the left back corner.

The processing method is the same as that of 1.

When the Pentagon recovers. At this time, the remaining three corners can be turned around at once, but it is easier said than done. For beginners, it's still

Restore another corner. There will be several situations at this time. First, two adjacent angles are not in the right position. Put those two confused corners in the left front corner and the left back corner.

These two positions, then you will find that the two corners will have two colors on the same side. You should face the same color up, and you will find these colors.

Consistent with the color on the left. That is, it can be flipped directly to the left.

Use the formula 1 first. After+. Then turn the whole Rubik's Cube 90 degrees clockwise. It is a whole. Not one side. Then use equation 2, and then.

If you complete the above steps. Congratulations. It's over.