For Tubo, begging for a princess is just a by-the-stop, and the real purpose of seeking advanced technology is its real purpose.

Lu Dongzan didn't care which princess from the Tang Dynasty could be married to Tubo Zanpu.

If it weren't for being cheated, I wouldn't have asked Princess Gaoyang to ask for a marriage by name just now.

Lu Dongzan still regrets it because of one sentence.

However, Li Shimin's face suddenly became dark.

Do you really think the princess of the Tang Dynasty is a cabbage?

This one doesn't work for that one!

Just waiting to speak out and scold.

At this time, Li Chengqian stood up and said, "Father, Tubo is a friendly country in the Tang Dynasty. My son believes that in order to enhance the friendly relations between the two countries, the Tubo envoys should be entrusted with what they ask for. Even if Princess Gaoyang has already given marriage, aren't there any other princesses?"

Hearing the words of the Prince of the Tang Dynasty, Yang Fan was stunned.

Is this guy stupid to read?

I want to raise the Tubo wolf as a dog. Do I really think that after the wolf grows up, I will pretend to be a dog?

It is obvious that Lu Dongzan proposed to marry a marriage proposal at the dynasty meeting because he thought of it unexpectedly.

He wanted to put pressure on the Tang Dynasty under the witness of the envoys of various countries, or to take advantage of the situation to agree when Li Shimin was happy in the dynasty meeting.

This guy Li Chengqian is not only a rabbit, but now it seems that his brain is not very good.

Li Shimin was also a little disappointed with Li Chengqian's performance, but did not scold him.

After all, as the crown prince of the Tang Dynasty, Li Chengqian could not let him lose his prestige in front of the ministers before he made up his mind to replace the crown prince.

The tiger's eyes flashed from time to time, and Li Shimin looked around and asked, "What are the opinions of all the dear friends in Tubo's proposal?"

Before the matter was clear, the ministers did not speak.

However, Fang Xuanling did not have so many concerns and said, "Your Majesty, it is of great importance. The old minister believes that it needs to be discussed carefully before making a decision."

"Father, the Tubo envoys traveled thousands of miles to propose marriage. I think it's better to be early and not late. Since the Tubo envoys have already proposed it, it should be resolved on the spot to show the sincerity of our Tang Dynasty." Li Tai stood up and said with difficulty.

Looking at the people who were each in their own opinion, Li Shimin felt a little embarrassed.

On the one hand, Li Shimin didn't want to get along with him.

On the other hand, both of his sons have the intention of using the strategy of marriage to be kind.

However, the more important thing is that it is fear of Tubo turning against each other.

Li Shimin was not worried that he could not defeat Tubo and was afraid.

It was because Li Shimin wanted the Tang Dynasty to recuperate for a few years, and then he won the great cause of Emperor Yang of Sui.

Goguryeo, this is Li Shimin's goal to make way for everyone else.

This made Li Shimin hesitate.

It would be great if there was a way to get the best of both worlds, and his eyes couldn't help but float to Yang Fan.

When he knew it was time for him to appear, Yang Fan said after a dry cough: "The Princess of the Tang Dynasty is a royal relative and nobleman. He has been urinating with golden branches and jade leaves since childhood, and Tubo is a place of bitter and cold. If the princess goes there, wouldn't she suffer in the rest of her life?"

"Besides, the culture of Tubo is very different from that of Central Plains. I am afraid that the princess will feel uncomfortable after marrying her. Unless the Tubo envoy can provide convincing evidence, otherwise, the princess must not be allowed to marry her."

Yang Fan's words surprised Li Shimin.

A few days ago, didn’t this kid strongly oppose marriage? Why did the words sound a little loose today?

But it was not interrupted, but sat firmly on Mount Tai and watched the changes.

Lu Dongzan was quite surprised and thought that Yang Fan spoke for him without grudges, so he quickly said: "Zanpu has been influenced by Central Plains culture since he was a child, and he has a deep study of Central Plains culture and its admiration. There will never be any Han people after the princess married. Besides, even if Tubo is a bitter and cold place, it is still a treasure of things, and it will never let the princess suffer any grievance."

Yang Fan glanced at Lu Dongzan and said directly: "How can you marry the princess's golden branches and jade leaves? Besides, your Majesty has a deep friendship. He can't bear to love his daughter to marry Tubo far away and endure the pain of longing, and he doesn't want to lose the friendship between the Tang Dynasty and Tubo..."

"It's better to do this. If the Tubo envoys can meet one condition and let the princess marry into Tubo, if the Tubo cannot satisfy it, please ask the envoys Dongzan to extinguish their intention of proposing their marriage, what about?"

Lu Dongzan was overjoyed: "Please make clear that Tubo will do his best to satisfy his country."

Yang Fan teased and said, "It's actually very simple. Didn't the envoy of Dongzan just now say that the Tubo species Huatianbao? It is said that Tubo produces Cordyceps sinensis. As long as Tubo can collect enough Cordyceps sinensis to fill the 64 grids filled with chessboards, the Tang Dynasty agreed to the marriage proposal. How about it?"

Lu Dongzan thought for a while, but didn't realize anything was wrong at all. He said in confusion: "Are there any requirements?"

Yang Fan smiled and said, "Just like this..."

In the first grid, put a Cordyceps sinensis...

In the second grid, put two Cordyceps sinensis...

In the third grid, put four Cordyceps sinensis...

In the fourth grid, eight Cordyceps sinensis...

By analogy, as long as Tubo fills up sixty-four grids, it is time for Tubo to marry the princess. I wonder if the envoys dare to accept it.

"That's so simple? Dongzan agreed. The minister must count the words." After calculating secretly, the seven or eight grids in front could easily be filled. Lu Dongzan was full of surprise and laughed.

Yang Fan nodded undeniable.

Is it simple?

This can involve a mathematical story.

In ancient India, there was a minister named Xita. He was extremely smart and invented a kind of chess piece. The king never got tired of playing with it, so he decided to reward Xita again. Xita said: "Your Majesty, I only have a little wheat. Please let someone put the wheat in the sixty-four grids of the chessboard I invented, one grain in the first grid, two grains in the second grid, four grains in the third grid, eight grains in the fourth grid, and sixteen grains in the fifth grid... Put it like this, put twice the grains in each grid than the previous grid until the sixty-four grids are filled."

The king burst into laughter after hearing this. He thought Sita was really interesting. He didn't want gold, silver and treasures. Instead, he made such a "stupid" request. There was a lot of wheat in the barn, and filling out sixty-four chess grids was really a bit of a problem.

So he ordered the Minister of Food: "Agree with Sita's request, and now pull the wheat from the grain warehouse."

Everyone present thought that a small bag of wheat could fill the square on the board, and some people couldn't help laughing.

But in the end, it was all over the country, but it couldn't fill the lattice.

Now Tubo wants to fill sixty-four grids with Cordyceps sinensis, which is simply a fantasy.

Mathematics was not very developed in ancient times, and Lu Dongzan didn't expect so much was taken for granted. He thought Yang Fan was thinking about friendship and helping him!
Chapter completed!