Shengjing City, at the end of the Ming Dynasty, was still a small city, surrounded by the city wall into an irregular square, there were two city gates on each side of the east, west, north and south, a total of eight gates, there was a moat outside the city, but it was not wide.

In the early morning of the third day, as soon as the sky was bright, Zhu Changyuan commanded thousands of Fusang pirates to start attacking the city.

But there was a more important step to be taken before the siege, and that was to fill in a passage through the moat.

There are 20 siege shield machines, each of which is about five or six meters long, about three or four meters wide, and about three meters high. The bottom layer is a space that can accommodate people temporarily.

Don't look at this simple equipment, it cost Zhu Changyuan more than 50,000 yuan for one piece! Twenty, more than a million!

"Bang bang bang!" When the machine started, the soldiers picked up shovels and dug the earth, put it into snakeskin bags, and then packed them into bags and transported them to the front of the moat by the shield machine, and it took two hours to fill in the moat into a passage that the shield machine could pass.

In the process of filling the river, Zhu Changyuan naturally suffered from the rain of arrows from the city wall, but it was protected by the thick shell of the shield machine, and those arrows were set on it like tickling, no, scratching is not qualified.

"What is this?"

Tabai asked nervously as he looked at the more than twenty shield machines below on the city wall.

"It's a siege thing." Duoduo watched Zhu Changyuan fill in the moat bit by bit, and said, "They want to use this thing to avoid our attack, and then dig against the city wall." Rats burrow! ”

"What then? Can we just just watch? Bows and arrows are useless? ”

Tabai, who was in his forties and nearly fifty years old, was already crying in a hurry. Dodor, on the other hand, was laughing.

"What are you laughing at?" Tabai said: "Everyone is attacking immediately, and you can still laugh?" ”

Duoduo snorted coldly, looking at the shield machine under Zhu Changyuan and not in a hurry, he seemed to be talking to himself: "It's really smart!" ”

Tabai said: "Fifteenth brother, what are you talking about? ”

Duoduo was calm and calm, and said with a smile: "Sixth brother, you haven't seen this kind of thing, but it is recorded in the ancient military books that it is a siege weapon called Chongche, but it's a pity that the guy on the other side knows a little bit about it, so he dares to use it to laugh and be generous!" ”

"Is there a way to deal with it?" Tabai asked.

"Absolutely!" Duoduo looked confident: "He only knows that rushing is a sharp weapon for attacking the city, but he doesn't know that rushing also has a huge shortcoming, do you know why I asked my brothers to move stones to the city wall early in the morning?" ”

Tabai suddenly realized, "Is it just to smash this thing?" ”

"Not bad!" Duoduo laughed, "In ancient times, the chariot was mostly made of wooden planks and cowhide, and there are two ways to break this chariot array, one of which is to smash it with stones. The power of a thousand jun, five zhang high, will basically break those things into pieces if they fall. ”

"What about the other way?" Tabai asked.

Duoduo said: "Another way is to attack by fire, although the car is strong, but the city is too strong, even if there are dozens of soldiers in the car, it will take a few days to dig through a section of the city wall, and the city can be set on fire." ”

"Oh!" Tabai suddenly realized: "Is it a fire attack? ”

"It's better to add fuel to the fire!" Duoduo was well versed in military books and the art of war.

Watching Zhu Changyuan's soldiers fill the moat little by little, and slowly drive the shield machine over the river, Tabai's eyes radiated a blazing light, and he tilted his head and said to Duoduo: "Come on, can we start attacking?" ”

Zhu Changyuan's twenty shield vehicles, each with ten soldiers hidden in them, arrived at the bottom of the city wall of Shengjing City at the same time, and the front section was stuck to the city wall.

"Hey!" A pirate ghost soldier looked at the nearby city wall and gave a thumbs up to the devil next to him: "This thing is really powerful, aren't we just digging a hole in the iron house?" ”

"Okay, don't talk, the general said, put on your mask first!"

More than a dozen people put on the masks in their hands at the same time, and then started the air compressor, and two people took the drill bit to the thick city wall, "Buzz, buzz!" The voice suddenly rose.

Pieces of loose dirt peeled off the walls, and in just a minute, the walls were chiseled away by a pickaxe in a large chunk of dry mud!

This is a thing that can directly chisel concrete on the construction site, and it is useless to chisel mud!

"Good!" After looking at the twenty shield machines below and taking place close to the wall, Duoduo began to order the soldiers to throw stones down: "Stones, throw!" ”

The weight of the stones was too great for the TBMs to throw away at all, and the best effect was only when they were all pressed against the wall and began to attack.

However, Dodor was soon dumbfounded.

The car below was not torn apart as he imagined, but still strong, and stones fell on it, making one sound of metal after another, and even the top of the entire car was smashed by stones, but still not a single car was smashed!

"Change the big stone!"

The weight of the stones thrown down by the soldiers defending the city just now was almost all under thirty catties, and it was not easy to operate and not easy to transport to the city wall, and now these stones had no effect when thrown down, Duoduo began to be anxious and ordered the soldiers to throw big stones down.

The head of Shengjing City is usually equipped with some large stones, seventy or eighty catties and even one hundred and ten catties and two hundred catties.

When the soldiers defending the city received Dord's orders, they all worked together to lift a large stone and throw it down.

"Dang!"

The boulder fell from the city wall more than ten meters high, and the damage to the shield machine below was huge, the upper layer of iron sheet was almost smashed out of the huge pit, and some of the tires of the car below were also crushed and deformed!

However, Zhu Changyuan had already expected this, and added a large number of dense steel supports to the entire shield machine, including coarse steel bars, steel pipes, and even I-beams.

The shape of the shield machine was seriously deformed, but the soldiers on the bottom layer of the city wall with a pickaxe were unscathed, but the dust caused by the pickaxe was scattered, and the dust below was not uncomfortable. Fortunately, preparing a mask in advance can also reduce dust entering the lungs with breathing to a certain extent.

The wind pickaxe hand below, can also be tolerated.

The pickaxe hand broke the clods of soil from the wall little by little, and then someone used a shovel to dump the soil in the car behind the butt of the car, once the front wall was dug out a little space, the shield machine moved forward again, closely followed, ring after ring, and the work of digging the city wall was in full swing.

The boulders on the city wall kept falling down, but the shield machine was covered with a two-centimeter-thick steel plate, and the steel plate was supported by dense steel underneath. Therefore, the boulder seemed to have smashed the entire shield machine into shape, and even turned the arched roof into a concave shape, but it was still useless, and after half an hour, the entire car more than five meters long was drilled into the thick city wall.

How many hours can the city wall last if it is two zhang thick?