After this little episode, everything was on track.

The Children's Army secretly arrested Chen Zhen, and the emperor accepted Qi Guogong's suggestion: a higher attitude, the Rakshasas were determined to negotiate and could exert more pressure.

Liu Yu is a guard, but whenever the emperor comes forward, it must be others eating and watching him, others sitting and standing with him.

Although the emperor could also speak Latin, as the king of a country, he could not speak a foreign language in front of a formal mission. You can say a few words during the banquet.

In addition, although he understands some, some proper nouns are difficult to understand, and some allusions also require Liu Yu to use examples from the first four histories to make an analogy.

The missionary's storytelling level is far worse than Liu Yu's.

Although Liu Yu's cultural level is like that, at least he has read the first four histories, and basically the Western court can find the corresponding allusions, and even many of them don't even need to go beyond the scope of historical records, which makes the emperor very comfortable to understand.

In just over 20 days, Li Gan's satisfaction with Liu Yu, a guard, skyrocketed, and there was a hint of "he must be present to receive foreign envoys in the future."

Liu Yu's existence gave the emperor a lot more bargaining chips with those Catholic missionaries.

In the past, Catholic missionaries could use foreign negotiations, mathematics, etc., as an inducement or coercion, but now this situation does not exist at all.

The Catholic missionaries were worried, but so was Count Sava of the Rakshasa Mission.

During the several encounters, the emperor's questions were very sharp, and he obviously knew very well about the political situation in the West, and he also knew a lot about the crisis in the Rakshasa country, and he was often able to talk about some key points.

The main issues of the negotiations between the two countries were trade, the Kalmyks of the Dzungar and Turghut ministries, the embassy and consulates, and the trip to Moscow to attend the enthronement of Peter II.

These problems need to be finalized one by one, but fortunately, the arrangement of Dashun is more reasonable and relaxed.

After every key issue, some banquets and programs will be arranged to relax.

At the beginning of May, after finally making an exchange between the Turks and the Dzungars, not interfering in each other's "internal affairs" and allowing the Turks to go to the snow-capped mountains, but not agreeing in principle to send a direct mission to the capital, the Rakshasa also made some concessions on the Dzungar border issue.

If Dashun has the ability, he can drink the water of Lake Balkhash and Yisohai Lake. Russia promised not to advance southward in the existing fort area for 30 years, and the entire border line was bounded by 30 versts in front of the Russian fort area in the northwest. It also provides a map of the fortress areas built by Russia in the northwest to prepare for Dzungaria.

However, if the Dzungar issue is still not resolved after 30 years, Russia will move south along the existing fortress area out of its own "defense needs."

This is a mutually acceptable condition.

Thirty years is just a treaty, if Dashun has not been able to solve the rebellion in the northwest in thirty years, then it proves that Dashun's ability to project troops in the northwest region is not worth mentioning, and Russia can do whatever it wants; If it can be solved, then Russia can judge the projection capability of Dashun in the northwest, and naturally it will not waste too many troops in the northwest to provoke a powerful enemy.

After the signing of this treaty, the most important problem was finally solved. Dashun held another banquet, which counted as an intermission in negotiations.

During the banquet, the emperor made an interesting proposal.

"I heard that there are many talented people in your mission. I also studied more mathematics and physics, and I came up with a few questions, and I took the test and taught the test, how about it? ”

After Liu Yu translated this sentence, the Count of Sava was of course very happy, he thought it was just a small joke, and readily agreed.

This time, there were many scholars in the huge mission, as well as many students of the Academy of Sciences.

Some people are semi-professional "spies", such as surveying and mapping roads, mountains and rivers, determining the latitude and longitude of the capital, investigating the defensive capabilities and military capabilities of the capital's city walls, and so on.

Sava didn't take it seriously and agreed.

This little "interlude-like examination" was scheduled for the next day. The questions were written in Latin, and they were also prepared with hard pens such as quills that they were accustomed to using, so they chose an examination room in the Forbidden City.

More than 140 Rakshasa people participated in this exam, and they also wanted to take the opportunity to see Dashun's scientific level.

However, when the question was sent, most people were stupid.

There are not many topics.

Take the lead.

Each even number not less than 6 can be expressed as the sum of two odd primes, and each odd number not less than 9 can be expressed as the sum of three odd primes.

This is the first question.

The original author of this question...... These Rakshasas are familiar.

Goldbach is now in Moscow as a court teacher to Peter II and also a member of the Academy of Sciences...... Uh, professor of physiology.

But Goldbach's conjecture had not yet been put forward at this time. Of course, this is a problem that cannot be solved at this time.

Half of the Rakshasas who participated in this test were deeply attracted by this question and never looked at the following questions again.

Instead, they took out a pen and paper and used up what they had learned all their lives to try to solve the problem.

Half of the people, after reading the first question, found that they didn't have any ideas and decisively chose the next question.

The next few questions are Liu Yu's carefully prepared "soft power display and technical intimidation".

The second question is very long.

It is known that the length of the meridian meridian coil is taken as one-forty millionth of the meridian meridian coil and named "meter".

The acceleration due to gravity is known to be 9.8 meters per second.

It is known that the speed at which a new type of cannon cannon of Dashun is ejected is 800 meters per second.

Regardless of air resistance, the artillery position of Dashun is XX meters from the fortress, and the observation platform of the fortress is X meters high.

This is a typical high school entrance examination question in later generations, and it is not difficult at all after removing the air resistance factor.

Liu Yu is sure that there are some Rakshasas who can solve the answer.

But his purpose in asking this question is not to answer it, but to tell the Rakshasa people a few things.

First, Dashun accurately measured the length of the meridian, which is almost the same as your measurement after converting the unit, which proves the measurement level of Dashun.

Second, Dashun accurately measured the magnitude of gravitational acceleration, you don't care how to measure it, anyway, it is measured.

Third, Dashun's artillery level is very good, at least if this question is the exam question of Dashun artillery officers, tell the Rakshasa people from the side that Dashun's artillery level is second to none in the whole world.

Because, such a question is one of the practice questions of the French artillery lieutenant in the era of Na Huang. At this time, the level of artillery in European countries was still far from the time of the emperor.

The reason why Russian artillery is so good and unique among a herd of gray cattle is that the leading mathematicians of the early 18th century were basically in Russia: Euler, Goldbach, Bernoulli......

Rakshasas are naturally very sensitive to such topics.

The next few questions, one is more outrageous than the other.

The third problem is the conservation of momentum.

The fourth question is the fastest descending line.

The fifth question is latitude and longitude navigation.

The sixth question is the calculation of the sail force area and the sailing angle against the wind.

The seventh problem is the primary differential integral to measure the volume of irregular barrels.

The eighth question is the calculation of triangular trade profits.

The ninth question is to make a regular seventeen-sided ruler.

The tenth question is the calculation limit value of military food consumption and transportation loss.

There are a total of ten questions, except for the first question that is unsolvable, and the ninth question, which is the same as the first question, is to lure Ora and others to come to the capital, and the rest are within the scope of solvability at this time.

But those who can completely solve these problems are not among the Rakshasa Mission.

Maybe if you throw it to the Academy of Sciences in Petersburg and let Bernoulli, Euler, Goldbach and others solve it, you will be left with two problems.

can let these people solve it at this time, but it is difficult for some strong people.

Except for the first and ninth questions, which have a special purpose, the remaining eight questions are all showing Dashun's soft power.

Artillery, Navy, Navigation, Logistics, Trade...... As well as Dashun's understanding of triangular trade and knowledge of the world environment.

Liu Yu knew very well that a large part of the people in the mission must be semi-open spies.

If it weren't, he wouldn't have come up with such a question, it's pointless.

It is precisely because many people come here for the purpose of spying on intelligence that this also makes these topics not flattering to the blind.

The whole day of exams was finally over, and these Rakshasas looked at each other one by one, and many kept shaking their heads.

"How many questions did you make?"

The person being questioned held out two fingers.

"2 and 6, the problem of sail force, Academician Bernoulli has spoken. What about you? ”

"2 and 5, my father was a naval officer, and I learned about navigation problems when I was a child."

"Do you have an idea for the first question?"

"Not at all."

"Is the Chinese exam just such a question? They relied on the 'imperial examination' to select talents. Could it be that the topics of their imperial examinations are all like this? ”

After saying this doubt, everyone present felt an indescribable panic.

After a short understanding of the month, they learned that the civil official selection method of Dashun was through an examination called the "imperial examination".

Except for titles such as dukes and earls, which are hereditary, civil officials are not hereditary. This is a terrible system that cannot be compared with Russia or even Europe as a whole at this time.

Even if they know that Dashun's "Pingzhang Affair" is now, in their opinion, among the chief ministers of the Privy Council, there are several children of commoners, which is unimaginable.

The content of the church school examination is the understanding of the scriptures. They don't know about Dashun's imperial examination, and they also understand the scriptures, so they can only guess what Dashun's imperial examination is testing through this exam.

The ten questions, in a special way, showed the soft power of Dashun, which combined with the imperial examination system and the non-hereditary bureaucratic system that they had heard of before, made them feel great fear.

At the end of the day's exams, several middle-aged men from the Academy of Sciences who led the team came to the Count of Savoie's room and expressed their judgment worriedly.

"Count, I think we should be able to know what kind of neighbouring country we are to the east. The questions in these exams show us how powerful they are. You judged correctly, their artillery is strong, and their navy, although not strong, has already begun to learn. ”

"As Peter the Great did, by the time the shipyards were opened, the future officers had already gone to Europe to study. And when the shipyard is completed, these officers can go straight to the ship. If Russia can build warships and powerful artillery, do you think China, which is much richer, will not be able to come up with this money? ”