Boom, this is a regular hexagonal chessboard that rotates and changes, composed of small triangles, and the area of the triangles divided by the regular hexagon is constantly changing, that is to say, the number of triangles filled in it is indefinite, at least it can be composed of six equilateral triangles, and the number of continuous divisions is increasing, is it a complex number problem?

Liu Sen looked at the question carefully, and gave three kinds of diamonds next to him, each of which is composed of two equilateral triangles, one of which is composed of two horizontal equilateral triangles, the second is two diamonds at a certain angle to the left vertically, and the third is two diamonds at a certain angle to the right vertically.

How to prove that when the board is filled, the number of each type of diamond used must be the same.

Difficult!

Imagination is involved!

The number is indefinite, and it involves the concept of limits, among which is the advanced knowledge of the number series!

Each inner angle of the hexagon should be 120 degrees, two vertical diamonds, one is 30 degrees to the left and one is 30 degrees to the right, and three diamonds are arranged on the hexagonal chessboard, with too many forms of permutations and combinations, how to prove it?

"It's time. Wang Chao waved his hand and put away the copy of the legend.

In fact, as long as you look at the legend clearly, don't want it for a minute, Liu Sen doesn't care, but is thinking about the proof method.

The simplest division, the hexagonal chessboard is exactly the top left 30 and the right 30, and the lower horizontal diamond, what about the next division?

In the case of no idea, it can only be deduced step by step, and the inductive method is not feasible? This is a method to solve the proof of the number sequence, which does not belong to specific knowledge and can still be used.

Work!

This is the legend, and you have to find a very subtle angle to make it into a sequence.

Liu Sen pondered.

"This includes the infinite division method, and just now a fool divided it in a specific way and thought it was proof, which only added to the joke. Wang Chao said sarcastically, "Oh, by the way, I'm telling you this, I'm afraid you won't understand it at all." ”

Liu Sen raised his head and subconsciously said: "Because of the angle limit, it is impossible to divide it arbitrarily, but it is not easy to comprehensively summarize and describe, in case any of the situations are omitted, it is not considered proof, the difficulty is here." ”

Hit the nail on the head.

This problem is a bit similar to the difficulty of Fermat's theorem, for any number to be true, then it is not exhaustive, there must be an extremely subtle angle, an unbelievable angle to cover all situations.

casually said it with the style of a god-level scholar, which is very natural.

Wang Chao couldn't help but be stunned, he had a preconceived idea that Liu Sen couldn't understand it at all, but his sentence hit the point of proving the legend, and he came to his senses only to find that the person had left.

Damn, they forgot to punish him.

Wang Chao shook his head, I am afraid that this problem can only be solved by highly talented bronze scholars, I really don't know what ingenious angle I can find, the supervisor is simply a waste of time to hang out a reward in the Wisdom Palace of Beiqing City, the purpose is probably not to solve the problem, but to inspire the thinking of students.

Director Yan Xue has been thinking about this legend for more than three months, and he has not been able to find a way, and he also made a move when he was too upset, and he felt a little nonsense when he calmed down at this time, how could it be possible in Beiqing City, at most, it was a group of quasi-scholars who could not be promoted, and there might be a few little geniuses in the next few decades and hundreds of years, and they would definitely leave after becoming true scholars, and only a broader stage could make greater progress.

Pressed the round button on the desk, which was a very delicate voice transmission star array, connected to Wang Chao, and said in a cold voice: "What's the reward?"

"Director, there are quite a few people who have come to watch the legend, no one has solved it yet, most of them don't even know where the difficulty of the legend is, I set the viewing conditions at least 110 soul power. ”

"There is no need to limit the viewing, but the submitted answers must be strictly reviewed, and don't show me any garbage, the purpose is to inspire and motivate students, understand?" Yan Xue coldly ordered.

"Yes, Director, I see. ”

Just about to end the call.

"I'm here again, what, I've found a way to prove it. ”

Liu Sen walked in again with a comfortable smile on his face, thinking of a super subtle angle, that kind of refreshment, all the pores were refreshed.

Still talking to the supervisor, Wang Chao glared at Liu Sen angrily, if it weren't for the fact that the communication had not been interrupted, he would have to drink and scold, which green onion do you think you are, how long has it been since you solved it?

Wang Chao stopped Liu Sen with a stern look, stop talking nonsense.

"The method of proving this legend is very ingenious, and I admire how I can think of it, and the simplification of complex problems is called cleverness. The method that Liu Sen came up with made him very complacent, and he unconsciously showed it.

Wang Chao's chest rose and fell in anger, and the supervisor was still listening, so he didn't want to scold rudely, and quickly wrote on the paper, "You get out first." ”

"Bring this man to me. After saying this, Yan Xue turned off the communication.

There is no chance of explanation at all!

Wang Chao is so angry, just tease me, the director is not angry when he sees this indiscriminate soul power 88, he must blame him for his ineffective work, scolding people very fiercely, is his head squeezed by the door?

"You...... You...... Litter...... Rubbish...... What's your daddy ...... Your ancestor ......" Wang Chao's hand trembled, it was not the supervisor who wanted to see him, he would directly let people throw him out, banned for one year, no, banned from entering the Wisdom Palace for life.

"What's wrong with you, you're also in charge, how do you scold like a shrew, it's too uncivilized, pull it down, I'll go directly to the supervisor. ”

"Stop. ”

"What's the matter? You're in charge, don't go overboard. ”

You shit, if the supervisor didn't want to see you, I wouldn't even look at you.

Wang Chao was angry and shouted, "You can't go." ”

"Who do you think you are?" Liu Sen also came up angrily, "The steward of the Wisdom Palace is amazing?"

Wang Chao wanted to hold back his internal injuries and shouted: "How did you solve the legend? What are you talking nonsense!"

"Too lazy to tell you. Liu Sen squinted and looked up, just ignoring you.

"The director wants to see you, hmph, if you lie, you won't have any good fruit to eat, and at the lightest is a lifetime ban from entering the Palace of Wisdom. Wang Chao deliberately scared him.

Liu Sen was too lazy to ramble any more, "Take me now." ”

Wang Chao was worried.

I don't know how many floors I got to when I came out of the office and went around the internal staircase, Liu Sen observed curiously, the internal staircase was smaller, the corridor had an ancient smell, and the lamps hanging on the walls like night pearls emitted a gentle light, and there were some reliefs.

When he walked to the top, Wang Chao stopped, sorted out his clothes and demeanor, and was still very nervous every time he saw the supervisor, and he didn't forget to help Liu Sen tidy it up, and said in a low voice: "Don't look around, don't talk nonsense." ”

Wang Chao was still very apprehensive, calmed down his breath at the door, and knocked lightly on the door.

"Come in. ”

"Director, I've brought someone here. ”

Liu Sen couldn't help but be stunned when he fixed his eyes, such a beautiful girl, she was still so young, she was out of the world, and she had a sense of nobility, and she had seen a lot of beautiful girls on the earth, and it was the first time she had seen such a beautiful girl, and she was the supervisor.

Wearing a comfortable and close-fitting dress, the curvature outlined on the chest is obvious, and the milk is big.

Yan Xue was looking at the information in her hand, and only then did she raise her head, glance at Wang Chao, and said coldly: "Is it that he claimed to have found a way to prove it?"