The top cross formula of the third-order Rubik's cube

The intersection method of the top of the third-order Rubik's cube;

1, select the white surface as the bottom, and make a cross at the bottom of the Rubik's cube. The colors of the four sides of the cross must be consistent with the colors of the front, back, left and right center blocks. As shown in the figure.

2. Return to the bottom corner, that is, restore the four corner blocks of the first layer of the Rubik's Cube. As shown in the figure.

3. Restore the second floor. The formula and conversion method are shown in the figure.

4. Put a cross at the top and adjust all four top edges of the Rubik's Cube to the top. At this point, there may be four situations: when we meet a point, there will be a small turn after the action, then a word and finally a cross. As shown in the figure below:

The English official name of the third-order Rubik's cube, named after Professor Rubik, is the most common Rubik's cube at present.

It has three squares on each side, the side length of the official version of the Rubik's Cube is 57 mm, and the total variation of the third-order Rubik's Cube is (8! x3^8x 12！ X212)/(2x2x3) = 4325200327489856000 or 4.3x10/9+09.

The third-order Rubik's Cube consists of six central blocks, eight corner blocks and 12 side blocks connected by a central axis. When they are connected together, they will form a whole, and either side can rotate horizontally without affecting other building blocks.

The third-order Rubik's cube is the most common in life, but in March of 20 1 1, a new third-order bread cube appeared, which broke the conventional cube design of the third-order Rubik's cube. At present, the third-order size of mainstream racing cars is mostly 55-57 mm

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