Seeing that Duan Ruqi was besieging but not attacking, Su You regretted that he was defending the city.

If according to the established plan, Su You pulled hundreds of artillery pieces to fight an ambush on Duan Ruju's way out, it would definitely catch Duan Rujue and Pubu's coalition forces off guard, and it would even be possible to withdraw their troops.

But now, due to the terrain, not only is it quite difficult for Duan Ruqi to launch a full-scale attack, but it is not easy for Su You to rush out and line up the formation.

Can we only wait for the good news from Wang Bodang?

But apart from waiting, Su You really didn't have much to do.

Duan Ruqi's appearance was like a fish bone stuck in Su You's throat, how could it not be like this?

After the battle of Huluwan, he sent a letter back to Dali as soon as possible to ask his son Jiaziheng to send someone to send the second batch of grain and grass, but he still hoped that he could solve the problem of eating the soldiers before the second batch of grain and grass arrived.

How to fix it?

Although Fu Guozhao does not know the "Guerrilla Song" like Su You, the two sentences sung in the song "There is no food, no clothing, and the enemy is sent forward; There are no guns, no cannons, the enemy will make them for us", which is still very in line with his mood at the moment.

At this time, being able to lay down Lincang City is obviously the best strategy for Ji Guozhao, and it is also his most urgent request.

Of course, Jian Guozhao also knew that he didn't even have a ship at the moment, and if Duan Ruqi didn't contain Su You and attacked the city alone, there was obviously no chance of winning.

Siege, how to attack?

What Yu Guozhao wants to know most now is that Duan Ruqi is not attacking the city now, what is he waiting for!

However, it was too difficult for Jian Guozhao to send scouts through the mountains and forests to reach the place where Duan Ruqi was stationed. Su You obviously also wanted to know when Duan Ruqi was waiting, but when the scout came back, he still couldn't calm down.

Duan Ruqi actually made the well fence and crash car that he used last time he attacked the Iron Armor Fortress!

If he is allowed to make it in batches, will this be worth it?

However, if Duan Ruqi wants to make enough well fences, it is impossible to complete it without three or five days, as long as he kills and burns his siege equipment before he prepares to attack the city, won't it be over?

But Lincang City was only 3,000 soldiers at best, and even if they could successfully attack Duan Ruqi's camp, these people had no intention of hitting stones with eggs in front of the 50,000 coalition troops.

When the enemy has absolute power, all his tricks are in vain.

After thinking about it, Su You could only think of a sneak attack, but the destructive power of this sneak attack should be strengthened.

That is, a sneak attack with artillery.

The same problem as rushing out of the city was that it was obviously impossible to pull the artillery out of the city and set up a formation.

One of the remaining ways was to transport all the artillery to the city.

Of the five hundred cannons that Su You has made so far, the lightest one is seven or eight hundred catties, and the final one reaches three thousand catties.

Fortunately, Su You has knowledge from modern times, he knows the fixed pulley and the movable pulley, and he also knows the role of the slope.

Making a ramp to transport artillery to the city is obviously the limit that people in this era can think of, but Su You thought of the elevator. Of course, people in this era are not yet able to make electricity, let alone convert electricity into mechanical energy, so all Su You can do is a lift.

Su You doesn't know when the first lift began, but he saw the use of the lift in the movie "Cleopatra", which may be the credit of the screenwriter of the movie, but it gave Su You a breakthrough.

"What shall we do?" When Li Mi heard that Duan Ruqi was actively preparing for war outside the city, he also panicked for a while.

The 50,000 allied troops of Duan Ruqi's Pu Division, plus more than 10,000 people led by Jian Guozhao, who was reluctant to leave after the defeat, added up to 70,000 people, and the ratio of their strength to the defenders of Lincang City exceeded 20 to 1.

"Don't worry, let's find a way to transport the artillery to the city, catch him by surprise, and then take the opportunity to open the city gate and go out and burn their food and siege equipment!" After Su You thought of the artifact of the elevator, a slight smile appeared on his face.

"Bring the artillery to the city? I thought about it just now, but" Li Mi nodded, his face a little embarrassed.

If the planks were used to make a ramp and the artillery was pulled to the top of the city by manpower, it would not have been possible for the movement to go undetected by the enemy outside the city; The most important thing is that the preliminary work is not easy to do

"I have come up with a tool that as long as we make it within three days, it won't be a problem to transport artillery to the city." After Su You finished speaking, he picked up the pencil that had been invented a few years ago and drew on paper.

I have to say that although Su You has been busy doing various research in recent years, his painting work has not fallen behind at all.

Su You's painting was only halfway done, Su Yunfan had already opened his mouth wide, and then sighed and said, "Is this an elevator?" Why didn't I think of that? ”

Su You listened to Su Yunfan's exclamation, and corrected while continuing to paint, "To be precise, this is a kind of elevator that is driven by manpower, and the working principle is that the efficiency of the movable pulley can be doubled, and we only need to have a few more movable pulleys."

Li Mi, Zhang Long, Zhao Hu and others didn't know what a movable pulley was and what a static pulley was, but Su You knew it, and he could teach it to the craftsmen to make it by hand, and the steel and cables used to make the elevator were not a problem.

After drawing the sketch of the elevator, Su You immediately ordered the leader of the craftsmen to be recruited to strike iron, and the two discussed the details of this unprecedented machine, and then Su You followed him directly to the place where the iron was struck

The elevator designed by Su You only transported the artillery to the city, so it was basically just a combination of four large iron pillars, and a horizontal bar was added to fix the pulley.

Even so, the four iron pillars that are more than four feet high and the thickness of the wrist plus some bits and pieces, this lift has reached two or three thousand catties; As a last resort, Su You had to install wheels under the lift.

After adding more wheels, getting the artillery on top of the elevator became the first problem to be solved, so Su You ordered people to use cement to build many slopes as high as wheels in the south gate, just like a wharf

In this way, as long as the gun is pushed up the slope, it can be pushed into the lift.

After all aspects were considered, the first elevator was made under Su You's personal command, and the time spent in this period was a full day.

The second and third days were the time for mass production, and within these two days, the craftsmen had made nearly twenty lifts, also thanks to Su You's various reserves; Otherwise, even the steel needed to make these more than 20 lifts would make people's heads white

While Su You was urging the craftsmen to make lifts, Duan Ruqi's side was also actively preparing for the war.

In three days, Duan Ruqi's side had already made more than 300 well fences and more than 100 city crashing vehicles; - In fact, is it useful to ask for so many siege equipment? It is almost enough to be able to line up fifty well fences in front of the Burmese Pass.

Of course, Duan Ruqi may use the well fence and Su Youyuan on the inner and outer three floors, the question is, how did his crashing car approach the city wall?

Or rather, let the crashing cars take the lead?

In any case, Duan Ruqi was tirelessly preparing for the siege, and he did not mean to wait for the first attack of the country.

Jian Guozhao calculated the days, probably at this time, the messenger he sent had been in Dali for two days, and the grain ship sent by his son should arrive in Lincang in two days!

Two days, just hold on for two more days!

Su You couldn't wait any longer, he said that he felt a little risky to wait for three days

Finally stayed up into the evening, although the moon had not yet set, Su You couldn't wait.

Under Su You's order, more than 20 elevators were slowly erected by the soldiers with fixed pulleys and ropes after fixing the wheels of the base, and then slowly pushed to the side of the city wall to fix them

On the other side, more than 1,000 soldiers began to push and pull the guns with wheels towards the south gate.

One by one, the cannons were pushed into the elevator, fixed and then sent to the city, and after being unloaded at the city, the soldiers fixed the cannons again

In less than half an hour, a section of the city, which was only thirty or fifty zhang, was lined up with more than 400 artillery pieces. - There were a few pieces of artillery that were too heavy, and Su You felt that it was really difficult to transport them, so he had to give them up.

Su You personally walked up to the city, checked whether the cannons were fixed one by one, and walked down the city with satisfaction.

At this time, Zhang Long and Zhao Hu each led five hundred people, each carrying torches in addition to spears and bows and arrows.

Their main purpose was not to kill, but to set fires.

When the moon slowly set into the West Mountain, the sky finally darkened, and in Su You's telescope, he could only see the torches scattered in Duan Ruqi's camp.

"Signal, attack!" After Su You gave the order, he had no choice but to plug his ears with cotton in time, and everyone in the city was like this.

The dynasty immediately lit up a rocket and shot an arrow into the sky.

"What the hell, do you think you're Hou Yi?" The soldiers guarding Duan Ruqi's military camp obviously also saw the arrow shot by the dynasty into the sky, and immediately muttered

But before they could finish their words, they saw countless artillery fire shining on the head of the city of Burning, followed by the sound of cannons one after another.

"What secret weapon did Su You invent this time? Hurry up and report to Daxiangguo! With this in mind, the sentry soldiers ran towards Duan Ruqi's camp one after another, but before they could run a few steps, the artillery shells had already fallen indiscriminately into Duan Ruqi's camps.

"Night Attack!" The soldier who cursed the dynasty just now was hit directly in the head by a cannonball when he just shouted two words.

At this time, in Duan Ruqi's camp, there was the muffled sound of cannonballs hitting various things, the loud sound of cannonballs exploding, and more of them were the screams of the soldiers who were awakened.

All of a sudden, the camp was ablaze, and countless soldiers were stoned to death and blown up to death.

"Don't be impatient!" Duan Ruqi let out a loud shout and rushed out of the tent barefoot, he had imagined Su You's countless sneak attacks, but he definitely never thought of bombarding them with artillery.

A quarter of an hour ago, if anyone told him about artillery, a weapon of mass destruction, he would have scolded him for being brainless.

But now, without anyone else saying it, he also knows that this kind of thing is artillery, and there are dozens of streets of stone throwing cannons (catapults).

Duan Ruqi was a wise man, and a wise man must have known that flesh and blood could not compete with weapons of mass destruction such as artillery, so he decisively turned over on horseback with bare feet.

The real attack of artillery has just begun.