How to break into a math book

The feeling of weightlessness that lasted for a long time finally disappeared, and the surrounding light gradually became clearer.Here is a piece of white light mist, like an alien space interspersed in time and space.

Tu Hua stood in the center of the light and mist, looked around, and finally found other people.Shen Siyi was not far away from him, and including the two of them, there were a total of 10 challengers in this space. Not far from him, Tu Hua also saw Sui Li.

Obviously everyone was at a loss about the current situation, and the 10 people slowly approached the same place.At this moment, a sharp and piercing laughter suddenly sounded in the void.

"Hee hee hee hee - welcome to the dilemma..."

This sound is different from the mechanical sound of the previous system, as if someone is hiding in the dark and talking to them with a loudspeaker.The sound surrounds the surroundings, and it is impossible to determine the direction of the speaker.

Everyone became vigilant, but the voice continued: "Don't be nervous! You 10 are excellent, and you have broken through the siege and completed Holmes' mission. Now I only need you to make a choice, and you can enter "Mathematics Breakthrough" The final ultimate level - [Geometry Rubik's Cube World]."

The next moment, a selection interface popped up in front of each of the 10 challengers. There were two selection buttons on the interface, one red and one green.

"According to the regulations, among the 10 of you, only 5 of you can pass the level and enter the final level, and the other 5 must clear a new scene in the [reasoning and proof] level to pass the level." The voice of the man's words surrounded their ears Pan, "But the choice of whether you can pass the customs is entirely up to you."

"There are two buttons, red and green, in front of you. Pressing the green button means that you want to pass the level. Pressing the red button means that you are willing to try again in another scene task of [reasoning and proof] level."

"However, if the number of people who press the green button to pass the level is greater than 5, all of you will be eliminated; but if the number of people who choose to pass the level is less than 5, then the person who presses the green button will pass the level, and the rest will enter another level. A scene mission to break through again." The voice suddenly sneered, looking very gloomy in the empty environment, "I will give you two chances to avoid elimination, as long as you succeed in the assignment within three times, you can end this game game."

So this is another game of hearts.

Only 10 out of 5 people can clear the level. Whether you want to clear the level depends on your own choice. If the number of people who choose to clear the level is greater than 5, then all members will be eliminated; if the number of people who choose to clear the level is less than or equal to 5, then press the green button to choose to clear the level Those who can enter the next level, while the rest need to start all over again in the [reasoning and proof] level.

At first, Tu Hua thought that this was not a cruel game, after all, there was a way out, and those who did not choose to clear the level could start the game again, which was not considered eliminated.So the competition among everyone should not be too fierce, but who knows that the problems they will face are far from that simple.

Tu Hua took the lead in expressing his opinion: "The choice given to us by the system this time does not mean that there is no way out. I think we should retreat. If everyone chooses to pass the level, we can only die together. So if it is me... I will choose the red button and start the game again at the new mission scene, it’s just a little detour. After clearing the new scene, you can reach the final level.”

A girl with a ponytail in the team seemed to be hesitant: "The Sherlock Holmes scene is already very difficult for me. I finally passed the level... If I start another level again, I think I may not be able to make it through."

The tall boy standing beside him glanced at her indifferently: "Everyone is in the same situation as you. If you only think about yourself, everyone will be eliminated."

The girl glanced at him with a troubled expression.

Sui Li folded his arms around his chest, thought for a while, then raised his head and glanced at Tu Hua: "I agree with Tu Hua's statement."

Tu Hua was stunned for a moment, he didn't expect that Sui Li would stand on the united front with him one day.But Sui Li's expression was very strange, and he only heard him say: "I will also choose the red button. At worst, I will do this level again. If everyone is eliminated, then there is really no chance at all."

He looked around the crowd, curled his lips and said, "To be on the safe side, let's all express our opinions on our choices for a while. It will be safer to make choices completely according to the results of the discussion."

"Tu Hua and I both choose the red button and don't compete for customs clearance places." Sui Li looked around the rest of the people, "What about you?"

Shen Siyi glanced at him, and took a step closer to Tu Hua: "I, like Tu Hua, choose red."

The tall boy just now also said: "I also choose red."

People who choose red mean that they are willing to make sacrifices for the group and are willing to take care of the overall situation.Four people have already said so, and the others will lose face if they continue to stalemate, so the remaining six challengers, including the girl, also expressed their willingness to press the red button, and everyone advances and retreats together.

If 10 people choose not to clear the level, then they must re-enter the new [reasoning and proof] scene, but this means that everyone can survive.

Sui Li seemed very satisfied with the result, and smiled and said, "As long as everyone works together, we won't be eliminated."

"But... there are still a few places that can pass the customs. Isn't it a bit wasteful for us?" He thought for a while, then pointed to the two girls in the team and said, "We only have two girls here, and the boys are all gentlemen. One point, select the red button and let these two girls pass the level."

Despite some hesitation, an agreement was eventually reached.The two girls were also very grateful to Sui Li.

Soon, they began to choose according to the results of the discussion.According to the rules of the system, they have two chances to avoid elimination, which means they have three chances to choose.As long as any allocation is successful, the game can end.

Tu Hua took a deep breath, and pressed the red button according to the result of the initial discussion.

【Ding--】

[Allocation failed. 】

Tu Hua was stunned, looking at the final selection result displayed by the system.The selection process is anonymous, but the selection results will eventually be published.As shown on the system screen, only three people pressed the red button, and the remaining seven people all chose the green clearance button.

The number of people who choose to clear the level is greater than 5, so this allocation failed, and they used up a chance to avoid elimination.

The ten people who had just negotiated harmoniously looked at each other in blank dismay at this moment, and the scene was very embarrassing.Tu Hua let out a sigh of relief, and looked in Sui Li's direction: "Only three people chose the red button according to the initial agreement. I know what you people who change your mind are thinking, but you have to know that if you keep holding this It’s a fluke, and everyone will be eliminated.”

In fact, it's not that these people who changed their minds midway have dark hearts, but that the method proposed by Sui Li has loopholes in itself.In this level, there are a total of 5 places that can pass the level, but he only leaves 2 for the two girls, and others will feel that since there are still [-] places left, choosing one more will not affect the overall situation .

If everyone thinks this way, the number of people who choose to pass the level will rise sharply.

Tu Hua chose the red button, Shen Siyi must have chosen the same red button as him.There is only one person left who chooses red, Tu Hua dares to say... this person is definitely not Sui Li.

Different from other people's fluke psychology, when Sui Li proposed this idea from the beginning, it was with conspiracy.He wants to limit the choices of most people by means of an agreement in advance, and then leave enough room for himself so that he can choose to pass the level.

Tu Hua saw through his trick at a glance.Who knew that this person would continue to be shameless: "Yes, why did you all change your mind? Only the three of us chose the red button!"

I thought that the other challenger who pressed the red button would stand up and refute him immediately, but after Sui Li uttered wild words, no one responded.

Did Sui Li really press the red button as promised?Tu Huazheng felt puzzled, only to hear the tall boy suddenly say: "There is no way to win this kind of game of human nature."

He glanced towards Tu Hua, and for some reason, Tu Hua always felt that look had a lot of meaning.Just listen to his explanation: "This choice is like the famous prisoner's dilemma. The best choice for the individual is not the best choice for the team, but people often lose the ability to make rational judgments because of their personal profit-seeking."

"It's all a fluke mentality." He looked around at everyone, his eyes indifferent. "It's like a prisoner's game: two people who commit a crime together are put in prison and cannot communicate with each other. If neither of them exposes the other, each goes to jail One year; if one person denounces and the other remains silent, the whistleblower will be released immediately because of meritorious deeds, and the silent person will be imprisoned for ten years for not cooperating; if they expose each other, because the evidence is solid, both will be sentenced to eight years in prison.”

"Facing this game, the best solution for two prisoners is not to report to each other, and then they will be sentenced together for one year. However, due to mutual mistrust and luck, both want to be released directly for their meritorious service. Excessive expulsions of people make them gamble with chance, so they often get the worst results."

The girl standing beside him looked at him with a pale face: "So you mean... we will all be eliminated?"

He hooked his lips and smiled: "Not necessarily, as long as we trust each other and keep our promises, this evil result will not happen."

trust, commitment.

Two simple words are the most difficult thing to do, especially for the 10 people who have managed to get to this point, everyone wants to win.

After the tall boy's words, the rest of them showed shame on their faces.He looked at the crowd with a calm expression: "I will still choose red in the next round, as for you... think carefully before choosing."

Tu Hua looked at him approvingly, this person can easily grasp the weakness of people's hearts, because these challengers are not vicious gamblers, they must all have their own merits to reach this point.They will definitely analyze the pros and cons carefully on this basis, and think carefully about the boy's words.

At the same time that Tu Hua was looking at him, the tall boy also cast his gaze over, meeting Tu Hua's eyes.

Tu Hua was taken aback for a moment, but saw that boy curled his lips at him, and there was a faint warmth in his eyes.

Who is this guy?

The next round of selection began immediately.Everyone had clearly thought it through, and after everyone had pressed the select button, the system beeped again.

【Ding--】

[Allocation failed. 】

Tu Hua looked at the system screen in disbelief, and saw that 4 people pressed the red button this time, 1 more than the previous round, and 6 people chose to clear the level by themselves.

The tall boy's so sensible words actually only touched one person.Not only Tu Hua, but also Shen Siyi and that boy were lost in thought.

The rest of the people also fell into anxiety. After all, they had used up the two chances given by the system to avoid elimination, which meant that they only had one last chance to make a decision.

Tu Hua raised his head and looked at the crowd: "Just now... has anyone pressed the red button?"

Shen Siyi raised his hand, the tall boy also raised his hand, and the girl beside him also raised his hand, including Tu Hua, there were exactly four of them.But... Sui Li, who was standing next to Tu Hua, also raised his hand.

Tu Hua frowned: "Why did five people raise their hands? The system shows that there are only four people."

Shen Siyi looked at Sui Li: "You said you also chose red in the first round?"

Sui Li's face remained unchanged: "Yes."

"You lied." Shen Siyi looked at him, his eyes were terribly cold, "I, Tu Hua and this tall boy chose the red button in the first round, it's fine if you lied just now, this time... you must choose Is it still the green button?"

Sui Li looked evasive: "You are talking nonsense, I think you are the one who lied..."

"Will you continue to choose red in the next round?" The tall boy asked suddenly as if he didn't hear Sui Li's excuse.

Sui Li froze for a moment, realized that he was asking himself, and nodded quickly: "Of course, I will always choose red!"

"Okay." The tall boy looked at the crowd and said unhurriedly, "Then let's divide the game like this for the third round."

"The person who chose red in the last game will choose green this time, and the person who chose green in the previous game will choose red this time." He glanced at Sui Li, "As for this student, he just said that he will still play in the next round." We will continue to choose red, so in the next round we will choose four green and six red."

Those boys who chose green in the last round were unhappy in every possible way: "Why did you choose green? What right do you have to decide our choice?"

Sui Li saw the situation taking a turn for the worse, and quickly fanned the flames: "Yeah, why can you just pass the customs? It's not fair! The chance to pass the customs should be won by strength!"

"That's right!" The boys responded one after another.

"Shut up!" The girl who chose the red button, that is, said at the beginning that she might not be able to pass the level if she tried it all over again, suddenly shouted, "What qualifications do you have to question us!"

She glared at the boys and said angrily, "Those who chose red are willing to pay for the interests of the group at least from the very beginning, but what about you? You are simply a bunch of selfish cowards!"

"If you are good enough, would you still be afraid to re-pass the [Deduction and Proof] level? You will only play tricks in this kind of level, even if you get a recommended place for University A, it is a waste!" She turned to look at Tu Hua and the others. With one glance, he took a deep breath, "I will continue to choose red in my next move. Although I am afraid that I will experience other scenes again and fail to pass the level, but I think true strength will not be afraid of luck."

"If I passed the level by luck before, it proves that I don't have the strength to reach the next level. I am willing to accept the worst result."

The few boys who were shouting just now were suddenly speechless.Another girl who chose the green button in the previous round also stood up, stood with that girl, looked at the group of sanctimonious pseudo-gentlemen and said, "I will also choose red in the next round."

The tall boy looked at the remaining people and smiled contemptuously: "Then continue to follow the rules just now? We choose green, and you choose red?"

Sui Li glared at him angrily, but couldn't speak.

Some people's fluke thinking is engraved in their bones, and it cannot be eradicated by a sentence or two.Even though these people look ashamed now, they may still make trouble when they actually choose.Besides, according to the tall boy's theory, only he, Tu Hua, and Shen Siyi were the ones who would choose the green button in the next round. Except for the two girls, the remaining five boys were forced to choose the red button.

They will inevitably have the fluke mentality that there are two vacancies, so this allocation plan is not safe.

Tu Hua walked up to the tall boy, and was about to remind him, when he suddenly raised his hand and stroked his hair gently, and said softly, "I know what you're worried about, don't worry, my choice... Always be like you."

Tu Hua stared at him blankly.

This thin and tall boy looks unattractive, but he has a pair of beautiful eyes.The eyes are deep and gentle, just like Su Gechi's eyes, which can deeply involve Tuhua.

He didn't know this boy, but he was very familiar with the boy's head-touching movements and his temperament.

Unexpectedly, after disappearing from the Sherlock Holmes scene, Su Gechi actually entered the level pretending to be a challenger.Tu Hua didn't know how difficult it was to operate from a technical point of view, he just felt pleasantly surprised and surprised.

He took a deep look at Su Gechi, and did not expose his identity, but remembered his words and prepared to make the third round of selection.

This round, they must choose red.Because the five boys including Sui Li would definitely not be able to resist the temptation to clear the level and would choose the green button.

Tu Hua and Shen Siyi exchanged glances, then glanced at Su Gechi one last time, and pressed the red selection button.

【Ding--】

[The distribution is successful. 】

The system screen showed that in this round, a total of five people chose the red button, and the other five people chose the green button to clear the level.According to the rules, the five people who choose the red button will be sent to another scene of [reasoning and proof] to re-pass the game, while the other five people will directly pass the level.

Sui Li and the four boys were excited after hearing the system's announcement, but in the next second, the voice that had been lingering in the void interrupted their joy: "Greed often leads to death. To advance is the correct way to pass customs."

"The five people who chose the green clearance button...you are eliminated."

Before the five boys, including Sui Li, realized what happened, their bodies turned into pixel particles and slowly disappeared, without even leaving a cry of astonishment. )

The situation took a turn for the worse.

Sure enough, the system invaded by the virus was weird and changeable. The rules were clearly formulated before the game started, but now they gave the opposite answer. The five people who clearly selected the green clearance button were ruthlessly eliminated in this way.

That said, only the last five of them survived the Sherlock Holmes scene, and it's not yet known what the system will do with them.

Tu Hua nervously looked at the sky above nothingness, only to hear the voice sound again: "The last five people... go where you should go."

As soon as he finished speaking, a rusty iron door suddenly appeared in front of the five of Tu Hua, and the scene inside the door was blurred.Although I don't know the way forward, but it will definitely not be eliminated.

Tu Hua walked between Shen Siyi and Su Gechi, and slowly stepped into the iron gate.

The dazzling light gradually faded, and another fantasy world was inside the door.Like floating in the endless starry sky, there is a huge third-order six-color Rubik's Cube in front of them. The main body of the Rubik's Cube is transparent, shining red, yellow, blue, green, orange and white six-color rays of light, just like a piece of crystal Clear square crystal.

Tu Hua stared blankly at the unpredictable giant Rubik's Cube in front of him, and heard the system beep coming from above the Rubik's Cube:

【Ding--】

[Welcome to the ultimate level: Geometry Rubik's Cube World. 】

It turns out that this is the geometric Rubik's Cube world!In the dilemma level just now, the system clearly stated that the challengers who pressed the green button will pass the level directly and enter the ultimate level of geometric magic world, while those who chose the red button should enter other scenes of the [reasoning and proof] level.

Unexpectedly, the system not only gave those greedy people the harshest punishment, but also rewarded them who were willing to sacrifice.Take retreat as advance, and those who are willing to endure and take a step back are the real winners.

Each face of this Rubik's Cube has the same color and is still in an undisturbed state. Obviously the system is still waiting, and the content of the level has not been officially launched.The three of Tu Hua found a relatively secluded corner to rest, and then he remembered to ask what was going on with Su Gechi.

I haven't seen him for a while, but this person has jumped from an NPC to a challenger?It has not been discovered by the system yet!Does it mean that he will always accompany them to pass the customs in this state?If Sugechi is cleared, what will happen to the system?

Su Gechi had already noticed that Tu Hua was full of doubts, and said with a smile: "I borrowed the body image of this boy named Feng Shuhang."

Tu Hua was confused: "What do you mean?"

"Geometry Rubik's Cube World is the final level, and this level is the only level without NPC, which means I can't follow you into this level." Su Gechi explained, "So I can only borrow the challenger's body Information enters the level. Feng Shuhang happened to be eliminated in the last level, so I borrowed his body to go through the level with you."

Su Gechi's determination to follow up proves that this level is no small matter.Recalling the various plots from the beginning of "Mathematics Breakthrough", they experienced the process from ignorance to exploration, experienced the whimsy of the mathematical world and the flood of viruses, and also experienced the trust and parting between teammates .

Finally, the last decisive hurdle came.

From the initial 20 challengers to now, there are very few left. What they want to compete for is no longer the right to pick up University A, but the life and death of many challengers trapped in the game.

Must win, no matter what comes next.

Tu Hua was silent for a while, then raised his head and looked at Su Gechi: "Is there any relationship between the current Geometry Rubik's Cube world and your own setting of the final level?"

Su Gechi shook his head regretfully: "Many of the following levels are completely irrelevant to our original game settings. This should be a level modified by the virus alone."

Tu Hua's mood can't help but dignified. If it's completely a checkpoint set by a virus, then what they have to face next is really incalculable.The virus didn't want the challenger to pass the level from the very beginning, and the content of the subsequent levels was extremely cruel, and at the end of the level, it would definitely hinder the challenger at all costs.

There are very few challengers left in the final level, and everyone is the best at the end, so this level may not only face math problems.

After waiting in the checkpoint for a while, the challengers who advanced from the other two scenes of the [Deduction and Proof] checkpoint also came here. The moment the three groups got together, the huge Rubik's Cube in the center was suddenly invisible to the naked eye After five seconds, the color blocks of the Rubik's Cube were completely disrupted.

【Ding--】

【Games start. 】

At the same time as the system beeped, the bodies of all challengers in the level were suddenly pulled up by a huge gravitational force and flew towards the center of the Rubik's Cube.

The balance of the body is difficult to control when flying, and the Rubik's Cube is like a magnet, instantly attracting all challengers to its surface.At present, there are only 18 challengers left, and the Rubik's Cube is like a hexahedron full of gravity. Three challengers are evenly distributed on each face, and each person stands on a different color grid.

Tu Hua walked on the plane he was on as if walking on the ground, watching the other five people standing vertically on his side, everyone couldn't leave his plane, and he couldn't even step out of the area under his feet. Color grid.

The 18 challengers were absorbed on the Rubik's Cube in such a strange state.Tu Hua stood at the top right corner of the entire plane, and the color blocks under his feet were red.Two people on the same plane as him, one stood in the white grid in the center, and the other stood in the blue grid at the diagonal position.

Tu Hua looked down through the transparent magic direction, and found that Shen Siyi was standing on the side that happened to be opposite to him, and Su Gechi was in the plane next to him. He quietly lay on the edge of the grid and looked down, just right Su Gechi's trousers can be seen.

Su Gechi waved at him, signaling him not to make such a dangerous move, and then Tu Hua stood up and squatted in his grid.

【Ding--】

[Geometry Rubik's Cube World Game Rules: The Rubik's Cube is disrupted, please restore the entire Rubik's Cube within 20 steps. 】

The rule is only a simple sentence, requiring them to solve the Rubik's Cube within 20 steps, not to mention the difficulty of restoring the Rubik's Cube, and the system did not give any explanation as to why they were arranged on the color blocks of the Rubik's Cube.

If this is the ultimate level, it will never be this difficult. There must be some purpose for each of them to stand on a different color block.

Tu Hua looked at the two challengers standing on the same plane as him: "Can you play Rubik's Cube?"

The two shook their heads in embarrassment.Rubik's Cube, an educational toy, has always been inseparable from mathematics. There are thousands of ways to restore the Rubik's Cube.Tu Hua once learned that there seems to be a rotation formula for the restoration of the Rubik's Cube, no matter what kind of Rubik's Cube it is, it can be restored according to that formula.

But according to the formula, it is absolutely impossible to restore the Rubik's Cube with such a messy color distribution in 20 steps.Those who can do this are generally professional players in Rubik's cube competition.

Just when everyone was in a dilemma, a boy on the same plane as Su Gechi suddenly said: "20 steps... this is the number of the Rubik's Cube God!"

Tu Hua scratched the edge of his floor and looked down, the one who spoke was a thin boy.The girl standing next to him wondered, "God's number? What is that?"

Su Gechi glanced at the boy: "Can you play Rubik's Cube?"

The boy looked a little shy and nodded shyly.

Seeing that he didn't seem to want to continue explaining, Su Gechi took his words and said: "The Rubik's cube we are in now is a third-order Rubik's cube. For a third-order Rubik's cube, it is a 3×3×3 cube that can rotate freely on all sides. .When these colors are shuffled, there are a total of 4325 billion billion combinations."

"Mathematicians have found that the number of steps to restore the Rubik's Cube has certain rules. After a lot of calculations, they found that no matter what combination of third-order Rubik's Cube, the minimum number of steps required to restore it will not exceed 20."

He pointed to the Rubik's Cube under his feet and looked at everyone: "That is to say, the minimum number of steps required to restore the seemingly irregular Rubik's Cube under our feet will not exceed 20 steps. So 20 is known as the Rubik's Cube God. number."

The thin boy looked at Su Gechi excitedly, and stammered, "You...are you also a Rubik's Cube lover?"

Su Gechi smiled: "I just understand the surface, I believe you must have a solution, right?"

The boy lay down on the ground and carefully observed the composition of the color blocks on each side. After thinking for a while, he said, "I... I probably know that if you want to restore this Rubik's Cube, you need at least 13 steps."

Tu Hua lay on the edge of the right angle, with half of his head exposed, and gave him a thumbs up: "You are amazing!"

The boy scratched his head in embarrassment, and looked at everyone cautiously: "Does that mean that we just need to turn the Rubik's Cube according to my method?"

After everyone acquiesced, the boy seemed more confident. He turned his head and glanced at Su Gechi, pointed to the color block axis in front of him and said, "This side... first take a step to the left."

The side he was referring to happened to be the plane opposite to Tuhua. There were two people on the axis of that plane, and one of them was the challenger standing diagonally with him on the plane of Tuhua.

After the voice of the skinny Rubik's Cube fell to the ground, the Rubik's Cube suddenly turned in the way he described, and the two challengers who were on the axis of the turned plane couldn't help exclaiming, and the next moment, the rotation stopped.

These two people have moved a plane to the left respectively, but they still stand vertically on the current new plane, and there is no gravitational imbalance.

Just when everyone breathed a sigh of relief, the color blocks under the two people's feet suddenly disappeared, and their feet turned into a mass of black nothingness. Before the two people could react, they screamed and fell into the center of the Rubik's Cube.

Everyone was lying on the ground in astonishment to observe the situation inside the Rubik's Cube, but after the two fell into the Rubik's Cube, it was as if they had completely disappeared, and there was no trace of them at all.

The girl on the same plane as Tu Hua looked terrified: "They... are they eliminated?"

Tu Hua took a closer look at the color blocks where the two were originally located. One was green and the other was yellow. Although the two color blocks were still emitting light, it was obvious that they did not exist like other color blocks. That is to say, it becomes empty.

The two disappeared without any reason, and the system did not make any notification or judgment, nor did it tell them what to do next.

Tu Hua faintly felt that the real game had just begun.The purpose of the Rubik's Cube is not to restore them, but to let the challenger on the color block fall into the Rubik's Cube.

He was about to comfort the girl when he heard the system broadcast suddenly sounded over the Rubik's Cube:

【Ding--】

[Challengers Zhang Xu and Li Mengmeng are eliminated. 】

In the next moment, the color block where the two people were originally healed suddenly, changing from transparent to solid.The crowd was in an uproar, and everyone fell into panic after talking about each other.

"Are the two of them eliminated because they fell in?"

"Why are only the two of them falling in? Is it because their positions have moved?"

"Then the fate of all of us is in the hands of that little man?"

"..."

Everyone had different opinions, and the skinny boy who instructed the Rubik's Cube to turn suddenly became nervous, with an apology on his face: "I...I didn't know it would be like this..."

Su Gechi glanced at him: "It has nothing to do with you."

"Everyone calm down." Su Gechi stood up straight, looked around and said loudly, "The two of them were eliminated not because of the rotation of the Rubik's Cube, but because they failed to pass the checkpoint inside the Rubik's Cube."

Su Gechi explained: "First of all, this level is definitely not as simple as turning the Rubik's Cube back to its original shape. The system makes us stand on different color blocks, so there must be his intentions."

"As for the reason, after a round of rotation, everyone should understand." He pointed to the color block where the two men stood before they were eliminated, "Both of them happen to be on the axis of the rotating Rubik's cube, which means Turn every time, people on the axis of rotation will fall into the inside of the Rubik’s Cube just like them, and there should be some checkpoints waiting for the challenger inside, and only by clearing the checkpoints can they return to the surface of the Rubik’s Cube.”

"The time we were waiting just now should be the time for them to clear the level. The two of them did not complete the task of the level, so they were eliminated, and the color block was completely closed."

Although Su Gechi's explanation is very reasonable, some challengers are unavoidably dissatisfied with the boy who instructs the Rubik's Cube to turn: "He has the final say on which one to turn? Can you ask him to change the method, and it is best to avoid it as much as possible." Everyone?"

The Rubik's Cube man looked puzzled: "The Rubik's Cube moves the whole body at a stroke. If you take a wrong step, you need to use countless steps to make up for it later. There is only one method with the least number of steps, and you can only turn according to that method... ..."

The man still wanted to make trouble, but Tu Hua interrupted him, and said displeasedly: "Now there are people on every plane, no matter how you turn, someone will definitely fall into it. Among so many people, it is enough to meet someone who can play the Rubik's Cube." Fortunately, if you still feel dissatisfied, can you give me a way to turn?"

The man felt wronged and finally shut up.

Tu Hua got down on the Rubik's Cube and smiled: "Go on!"

Rubik's Cube looked at him gratefully, with a hesitant expression.After a while, he gritted his teeth and said, "The next one is... this side, turn it to the right twice."

What he pointed at happened to be the axis that Tu Hua was on.There were two girls on the same axis with him, and the three of them quickly lay down on the ground with nervous expressions.

Sure enough, after Rubik's Cube gave instructions, the axis that Tu Hua was on began to rotate.After two steps, Tu Hua turned to the plane opposite him, standing on the same straight line as Shen Siyi.

Shen Siyi looked at him, and before he could say any words of encouragement, Tu Hua felt the color blocks under his feet suddenly become empty, and then he fell weightlessly into the endless darkness.

The weightlessness lasted for more than ten seconds and then disappeared. The Rubik's Cube had disappeared. Tu Hua was floating alone in the black void, and he didn't meet the two girls who fell with him.

【Ding--】

[In a plane, please arrange seven points in combination so that at least one side length of the triangle formed by any three points is unit 1. 】

The flashing blue screen of the system suddenly appeared in front of Tu Hua, and on his left side appeared a triangular ruler marked with the scale "Unit 1", and seven star points that glowed like Big Dipper stars.