There is a formula for playing the Rubik's Cube, and if you turn it according to the formula, anyone can turn the six sides into a uniform color.

But in that case, it would lose the meaning of him buying Rubik's cubes for his children.

Therefore, he did not plan to tell the children the formula at the beginning, saying: "Playing the Rubik's Cube is a step by step, you choose a color first, put the individual sides into a color, and whoever does it first, I will give a reward." ”

Only unifying the color of one side is still simple for adults, Lin Jiayin used to change the white one to one side when she was playing, but she couldn't do more faces.

Silently took a Rubik's cube, and she also turned it.

Jiang Shan, Wang Gang and Jiang Ting also turned around, but what was simple in Jiang Xiaobai's hands was difficult in the hands of the three children, and they couldn't do it well after turning around for a long time.

"Baba, this is too hard!"

Jiang Shan said with a look of annoyance.

Jiang Xiaobai smiled and said, "Do you remember the observation and calculation I taught you when I taught you to play chess?" When you're ready to move a piece, you need to have in your mind the game after the board changes after the piece leaves its original position. ”

Jiang Shan tilted her neck and thought for a while, and said in a milky voice: "Baba, do you mean calculation and spatial imagination?" ”

Jiang Xiaobai nodded.

Jiang Shan smiled and said, "Then I know, I'll think about it again!" ”

"Go ahead, I'm sure you can!" Jiang Xiaobai said encouragingly.

At this time, Lin Jiayin had already turned all the red sides of the Rubik's Cube in his hand, brought it to Jiang Xiaobai, and said, "How will you turn it next?" ”

Jiang Xiaobai didn't expect Lin Jiayin to be interested in the Rubik's Cube, and praised: "Wife, you turn so fast!" ”

Lin Jiayin pouted: "It's not that the back is not going to be!" ”

Jiang Xiaobai smiled, pulled Lin Jiayin to the side, away from the three little guys, and then said: "I bought the Rubik's Cube to let a few children exercise their computing power, so that they can turn it by themselves, wife, you don't need it, I will teach you three formulas, and you can turn all six sides in one minute." ”

"And the formula?" Lin Jiayin asked in surprise.

Jiang Xiaobai nodded: "Yes, I'll teach you!" ”

As he spoke, he walked behind Lin Jiayin, opened his hand and hugged her from behind, grabbed her soft wattle, and drove her fingers to turn on the Rubik's Cube, saying the rules and skills as she turned.

The rotation of the Rubik's cube is divided into three layers and one layer at a time, and the rotation of the first layer is not only to unify a face, but also to unify the four sides of the first layer, and each edge is the same color as the middle of the surface, so that the second layer is easy, just use the formula.

The next third layer is the same, and two formulas can be solved.

Just taught one side by hand, and the Rubik's Cube was quickly restored in Lin Jiayin's hands.

"It's that simple?"

Lin Jiayin said incredulously.

Jiang Xiaobai said: "Yes, you just need to remember the few formulas I told you, and you can fiddle with them as you like." ”

Lin Jiayin's memory is excellent, several formulas are firmly in mind, and he scrambles the Rubik's cube casually, and then turns it according to the method Jiang Xiaobai said, and it took more than three minutes to restore the Rubik's cube.

"Really, it's too easy!"

Lin Jiayin said excitedly.

Jiang Xiaobai smiled: "It's my wife who has a good memory, and some people can't remember the formula if you tell him the formula a few times." ”

At this time, Jiang Shan's side also turned out a blue side of the Rubik's Cube, and she shouted excitedly: "Baba, Baba, I turned out a noodle." ”

Jiang Xiaobai walked over and looked at it, and praised it: "Shanshan is so smart, she did it so quickly!" ”

"Baba, what's next?" Jiang Shan asked happily.

Jiang Xiaobai said: "You turn one side of each color, get familiar with it, and then turn it very fast." ”

As he spoke, he took the Rubik's Cube and quickly turned the red side around, then shuffled it up, and quickly turned out the white side.

The Rubik's Cube was constantly messed up in his hands, and it continued to form a color block, which dazzled Jiang Shan.

Jiang Xiaobai said: "Practice repeatedly like this, you have to turn as fast as me!" ”

"Good!" Jiang Shan took the Rubik's Cube in Jiang Xiaobai's hand and said confidently: "I must turn faster than Baba!" ”

"Okay, I'm sure Sansa can do it!"

"Hmm!" Jiang Shan nodded and happily went to play with the Rubik's Cube.

Lin Jiayin learned to turn the Rubik's Cube, seemed very happy, pointed to a large number of other toys that Jiang Xiaobai bought, and said, "What are these?" ”

Jiang Xiaobai picked it up one by one.

"This is Huarong Dao!"

"This is the Luban lock!"

"It's a Nine Rings!"

"It's a tangram!"

“……”

One by one, all educational toys, although they are only made of wood, but they can play with them all, it is really not an easy task.

Next, Jiang Xiaobai started with the simplest Huarong Dao wooden chess and taught Lin Jiayin to play.

After Lin Jiayin played a few times, he said happily: "This is also so interesting, it looks simple, but there are many changes, and it is different every time." ”

Jiang Xiaobai said with a smile: "These toys are often played by children, and they will be very smart in the future!" ”

Lin Jiayin nodded again and again, quite approving.

In the afternoon, both the three children in the office, Lin Jiayin, Feng Yanhong and Chen Xin were playing with toys, and they felt that the toys that Jiang Xiaobai bought this time were too interesting.

"Shanshan, Tingting, we're going home!"

At five o'clock, Jiang Xiaobai greeted the two children.

"Baba, can I take the Rubik's Cube home to play?" Jiang Shan seemed to be a little addicted to playing the Rubik's Cube, and was reluctant to drop it, and said.

Jiang Xiaobai said: "You can bring it if you want, and you still have it at home." ”

Jiang Shan said: "Then I'll bring it too, I'll play in the car." ”

Jiang Xiaobai said: "There are also in the car, and I have prepared several sets for you!" ”

Jiang Shan put down the Rubik's Cube and said happily: "Thank you, Baba is so good, you have prepared so many toys for me, and I can play at home, in the car and at any time when I come to the office!" ”

Feng Yanhong looked at Jiang Xiaobai and sighed in her heart, her cousin was really good to Shanshan, and he even thought about buying toys so thoughtfully.

Well, although she only gave one set to her son Wang Gang, she was not dissatisfied, knowing that with this kind of toy, as long as Xiao Gang likes to play, I will also give Xiao Gang a few sets back.

What's more, Jiang Xiaobai also gave both her and Wang Ping exquisite watches of foreign brands.

It's just that when she saw Lin Jiayin's new bag, she was envious.

"It's so beautiful, I'm going to find a way to buy a few too!"

Anyway, now I have money and can afford it!

Lin Jiayin, Jiang Shan and Jiang Ting followed Jiang Xiaobai home, and Jiang Xiaobai asked Jiang Ting in the car: "Tingting, are these toys fun?" ”

"It's fun, but I won't!"

Jiang Shan listened and said with a smile: "Sister Tingting, I'll teach you!" ”

As he spoke, he picked up the Rubik's Cube and told Jiang Ting how to turn it.

Jiang Xiaobai looked in the rearview mirror at the two little guys in the back row, one teaching and the other learning, both very serious, with a smile on the corner of his mouth.

looked at Lin Jiayin next to him, still fiddling with Huarong Dao, as if he was fascinated.

He smiled even more.

My wife is now pregnant with a baby, and it's boring to only read books every day, and when I'm tired of reading, it's good to play with this toy!