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"Oh, it turns out that you in Persia also have arithmetic, what a strange anecdote, but since you can't solve it, then let's show it, maybe, we can teach you what arithmetic is."

Li Chunfeng's words were a little annoying, and Mas was really angry after hearing it.

However, he quickly calmed himself down again.

He didn't come to be angry with these people in Datang, he came to make things difficult for these Datang people.

As long as they can't unlock the nine-square grid, then they don't want to keep this face.

Ma Si smiled, and did not talk to Li Chunfeng as fast as he could, but took out the nine-square grid he was carrying.

"Since these people in Datang are so confident, then please help me solve this problem."

The nine-square grid was taken out, and there were some numbers written in a few grids, but Li Chunfeng and the others saw these numbers, and after seeing this nine-square grid, they didn't understand what this thing was for.

"Do you understand what this is?" Maas asked proudly.

The corners of Li Chunfeng's mouth twitched slightly: "You came to ask us, if you don't tell the question, how can we answer you?" ”

"That's my problem, can't you see it?"

Li Chunfeng laughed and said, "If I take out an egg and come out, can you help me find out which hen laid it?" ”

The two of them are-for-tat, but no one will let anyone.

However, Li Chunfeng was a little sharper in the end, and then Ma was quick to bow down, and in the end he had no choice but to tell them about the rules of the nine-square grid, but he only said it once, and it was one time, and after he finished speaking, he smiled: "Three days, if you don't solve this puzzle within three days, then we will take away this nine-square grid, and at that time, it will be on the surface that these people in your Datang Dynasty are not good at mathematics." ”

Maas said and turned to leave, in his opinion, even if these people were given five days, they might not understand how to solve the nine-square grid.

When Mas left, the people in the arithmetic hall immediately lay down and began to study the nine-square grid.

Although they are all very smart people, it is the first time they have seen this, and they have only listened to Maas's description of the rules of the Nine Palaces, and they don't know a lot of things about it.

So, when they read it, they understood what was going on, but they were still confused and didn't know how to answer it.

"I really didn't expect that Persia would be able to come up with such a question, but I don't know if this question can be answered."

"It's only three days, which is a bit difficult for us."

“…………”

These people in the Arithmetic Hall muttered and studied this thing, but it wasn't until a day later that they finally understood how this thing was played.

"Oh, that's how it looks, that's how it is."

"Understood, understood, let me try to answer it."

After a scholar understood, he sharpened his knife and prepared to solve it, but when he really put pen to paper, he found that things were much more difficult than he imagined, even if he understood what was going on, but it was very difficult to really solve it.

"How can this be, how can this be, this is too difficult, right?"

"It's too hard, it's too hard......"

Some people complained and were very painful.

And at this time, this matter has reached the ears of Li Shimin in the palace.

"Holy Lord, the Persian kingdom has come to us again."

Li Shimin was reviewing the folds, and after hearing the news, his eyebrows suddenly condensed.

"This Persian country is really stubborn, it will really make trouble for my Datang, this time, what trouble is he looking for?"

Although he was very angry, in the face of other people's challenges, they Datang just wanted to have this kind of accepting mind, so Li Shimin still asked.

was asked by Li Shimin, but the palace people suddenly hesitated.

Seeing this, Li Shimin shouted: "Say whatever you want, what do you mean by being like this?" ”

The palace people had no choice, so they said truthfully: "Shengshang, what is the specific trouble, the slave maid doesn't know, that is, the Persian country gave those people in the arithmetic hall an arithmetic problem, what is it called Jiugongge, the slave and maid don't know how to play, I heard that it is difficult." ”

"Nine-square?" Li Shimin had never heard of this before, so after hearing about it now, he also felt fresh, of course, more confused.

"Li Chunfeng, they are all talents in the academic world, can't they answer?"

"I heard, it took them a day yesterday to figure out how to play that nine-square grid, and today they played for a day, and they couldn't unravel it, so I think it's ...... It's hard. ”

Hearing that it took Li Chunfeng and them a day to understand what the rules were, Li Shimin frowned, Persia only gave three days, and if it couldn't be solved tomorrow, it would be difficult to do.

After thinking about it, Li Shimin said: "Go and tell Li Chunfeng that no matter what, you must unlock the nine-square grid, and if you lose, I won't spare him." ”

Datang, I can't afford to lose such a person, so no matter what, we must solve the Jiugongge.

The palace people suddenly felt a little sympathetic to Li Chunfeng, but they still hurriedly responded.

The matter of Jiugongge stumping those people in the Arithmetic Hall soon spread in Chang'an City.

Of course, this news was spread by the Persians, and if no one knew about it, then what was the point of them doing it?

They just want everyone to know that those so-called mathematicians in Datang are actually very ordinary, and they can't even solve a nine-square grid.

In this way, the more people know, the more unbearable Datang's face will become.

The third day came soon, and many people flocked to the Arithmetic Hall, they were all brought in by Mas, and they just wanted everyone to see the expressions of these people in the Arithmetic Hall who couldn't solve the Jiugongge.

Only then will they be able to feel that thrill of revenge.

The arithmetic hall was a little surrounded by people, and Ma Si glanced at Li Chunfeng and the others, and said with a smile: "How about it, have you solved the Nine Palace Grid?" ”

Ma Si asked, Li Chunfeng and the other people's faces were ugly, because they had been busy for so long, but they still had no clue how to solve the problem of the nine-square grid, they tried a lot, but the nine-square grid has nine lines, there are too many numbers, they can manage this, they can't manage that, they don't know how to fill it in at all.

Li Chunfeng was silent, and Maas laughed again: "It seems that you Datang is nothing more than that." ”

And, just as Maas finished saying this, a voice suddenly came from behind: "It's just a nine-square grid, what's so difficult about this?" ”

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