Rubik's Cube is a fun and rewarding intellectual game that can exercise your hand-eye coordination, spatial imagination and logical thinking skills. However, for beginners, spelling the Rubik's Cube can be difficult and don't know how to get started and proceed. In fact, spelling the Rubik's Cube is not a mysterious thing, as long as you master some basic steps and methods, you can easily complete the restoration of the third-order Rubik's Cube. In this article, I will introduce you to the steps and methods of spelling the Rubik's Cube, so that you can learn to spell the Rubik's Cube step by step from scratch and enjoy the fun of spelling the Rubik's Cube.
The step-by-step method of spelling the Rubik's Cube
The step-by-step method of building a Rubik's cube can be divided into six stages, each of which has one or several formulas that are used to solve a certain part of the Rubik's cube. A formula is a series of Rubik's Cube rotation commands, represented by letters and symbols. Before learning Xi formula, you need to understand some basic terms and symbols of the Rubik's Cube.
Each side of the Rubik's cube is represented by a letter, which is front (f), back (b), upper (u), lower (d), left (l), and right (r).
Each layer of the Rubik's Cube is represented by a number, which is the first layer (1), the second layer (2), and the third layer (3).
Each type of block of the Rubik's Cube is represented by a word, which is the center block (center), the edge block (edge), and the corner block (corner).
Each rotation of the Rubik's Cube is represented by a symbol, which is clockwise (+) and counterclockwise (2).
Each formula of the Rubik's Cube is represented by a string of letters and symbols, such as r+ u- r- u+, which means that the right side turns clockwise, and the top turns counterclockwise, and the right side turns counterclockwise, and the top turns clockwise.
Once you know these terms and symbols, you can start learning the steps of Xi Rubik's Cube. Here are the six stages of the Rubik's Cube, each with one or more formulas, as well as corresponding diagrams and explanations. You can follow it step by step in order, or you can watch it first and try it yourself. If you get stuck, you can watch it several times, or refer to some online tutorials.
Stage 1: Restore the bottom cross.
The goal of this phase is to make a cross shape on the bottom side (d) with the other side of each edge the same color as the center block on the side, as shown in the image below
There is no fixed formula for this stage, but you need to flexibly adjust the position and rotation of the Rubik's Cube according to the actual situation of the Rubik's Cube. Here are some basic steps and tips that you can refer to or modify:
First, choose a color as the color of the underside, such as white. Then, find a white edge on the top surface (u), such as a white-blue edge.
Second, move the white-blue edges directly above the blue center block, which is to align the white and blue. Then, use u+ or u- to turn the white-blue edges to the front (f), i.e. so that the white faces forward.
Again, use F+ or F- to turn the white-blue edges to the bottom (D), i.e. with the white face down. In this way, you have completed the ribs of a bottom cross.
Finally, repeat the above steps to find the other three white edges, align them and turn them over to the bottom to complete the bottom cross. Be careful not to break the finished edges during the alignment and flipping process.
The second stage: restore the bottom layer.
The goal of this stage is to restore the four corner blocks on the bottom surface (d) so that the bottom layer is the same color.
There are two basic formulas for this stage, the right-handed formula and the left-handed formula, which are used to turn the corner block on the top side to the correct position of the bottom surface. Here are the representations and functions of the two formulas:
Right-handed formula: r+ u- r- u+
Function: Turn the corner block in the lower left corner of the top surface into the lower right corner of the bottom surface, and the color of the top and right sides remains unchanged, and the color of the front side rotates counterclockwise.
Left-handed formula: l- u+ l+ u-
Function: Turn the corner block in the lower right corner of the top surface to the lower left corner of the bottom surface, and the color of the top and left sides remains unchanged, and the color of the front side rotates clockwise.
Here are the steps and tips for using these two formulas that you can refer to or modify:
First, choose a color as the color of the underside, such as white. Then, find a white corner block on the top surface (u), such as a white-blue-red corner block.
Second, move the white-blue-red corner block directly above the blue center block, i.e., align the white and blue. Then, use u+ or u- to turn the white-blue-red corner blocks to the bottom left or right corner, that is, to make the white face left or right.
Again, depending on the direction of the white face, select either the right-hand formula or the left-handed formula. If the white is facing left, use the right-handed formula;If the white is facing right, use the left-handed formula. Use the formula to turn the white-blue-red corner blocks to the bottom, that is, to make the white face down. In this way, you have finished a corner block with a bottom layer.
Finally, repeat the above steps to find the other three white corner blocks, align them and turn them over to the bottom to complete the bottom layer. Note that during the alignment and flipping process, do not break the corner blocks that have already been completed.
Stage 3: Restore the middle layer.
The goal of this phase is to restore the four edges of the middle layer so that the color of the middle layer is the same as the color of the center block on the sides.
There are two basic formulas for this stage, the right-handed formula and the left-handed formula, which are used to move the top edge to the correct position in the middle layer. Here are the representations and functions of the two formulas:
Right-handed formula: u+ r+ u- r- u- f- u+ f+