What does that woman want to do?

The days passed day by day, and in a blink of an eye, it was October 26, and seeing that the period at the end of October was getting closer and closer, Xie An still couldn't guess the strategy used by the eldest grandson Xiangyu.

Feeling depressed, he took Liao Li and more than a dozen guards to wade through the knee-deep water in the camp and came to the place where Liu Yi and other generals dug a pit.

Because the water was too deep, he was probably afraid that someone would fall into the potholes, so Liu Yi piled up a circle of soil around the potholes as a warning.

"And said that it won't be long before the water in the camp recedes...... Stand out! - What about the liar?! Xie An complained angrily.

Suddenly, Xie An seemed to notice something, staring at the calm stagnant water in the earthen circle.

What's going on?

No ripples......

What does this mean?

This shows that the water poured into the ground by Qinguan has not gushed out from here......

If the water from the ground has not poured out of the ground, why has the water level in the camp not decreased in the slightest?

Something's wrong, more than 20 days ago, the drainage canal was dug up......

"Liao Li, where is the drainage channel in the camp?"

"Lord Qiqi, in the direction of the back camp!"

"Take this official with you!"

"Yes!"

Under Liao Li's guidance, Xie An came to the back camp and walked along the drainage canal to the outside of the camp.

As he walked, he frowned suddenly, for he found that the drain had been blocked as it passed by the mounds of dirt in the back camp......

Could it be that someone is making trouble with it?

Could it be the Fei country?

With all kinds of speculation in my heart. Xie An raised his head, looked at the heavily guarded Zhou soldiers, and shook his head slightly.

"My lord, this ......" Liao Li obviously also noticed that something was wrong with the drain, and looked at Xie An in dismay.

Xie An waved his hand, signaling Liao Li not to be impatient, and then looked back at a soldier and asked, "Which general is on duty here?" ”

The soldier clenched his fists and said, "Lord Qiyu." It's General Li Jing! ”

"Call him over!"

"Yes!"

After a short time, Li Jing hurriedly came to Xie An's side through the stagnant water, clasped his fists and said, "What do you command?" ”

Xie An pouted at the blocked drain and frowned, "What's going on?" ”

I saw a trace of hesitation flash in Li Jing's eyes, and after looking around, he lowered his voice and said, "My lord." It was the military advisor who ordered the last general to block the ......"

"What?" Xie An frowned when he heard this, and said puzzled. "Why do you have to block it? Isn't it interesting that there is water in the barracks every day? - Dig up! ”

"This ......" Li Jing hesitated for a moment, and said with a wry smile, "My lord, even if you dig up, the water in the camp will not recede......"

"What do you mean by that?"

Li Jing looked left and right, and saw that there was no one around, so he whispered to Xie An, "My lord, I really don't hide it. I only dug half of this drainage canal, and then stopped behind the mountain...... Don't look at the water in the canal, but it is all the initial stagnant water, and the rain in the past few days......"

"What did you say?" Xie An's face was shocked when he heard this, and he frowned and said, "This ...... This canal. You're only halfway there? ”

"Yes!"

"......" Xie An looked at Li Jing stupidly, then suddenly turned around and said to Liao Li, "Liao Li." Let's go, go to Mt. Kunshan! ”

"Yes!"

"Wait, sir!" Just as Xie An turned around, Li Jing took a few steps closer, took out a ball of paper from his arms, and stuffed it to Xie An.

"What is this?"

"This is the blueprint of the tunnel that the commander ordered to dig at the end of the order...... The last general wanted to give it to the adults more than ten days ago, but the military advisor ordered the last general to be on duty here, and he was not allowed to leave half a step without permission, so he never had a chance...... Hope it helps! As he spoke, Li Jing gave Xie An a tacit look.

Looking at Li Jing's departing back, Xie An felt funny, but also couldn't help but be a little moved, he naturally knew that the eldest grandson Xiangyu must have warned these people before, but even so, Li Jing was holding back his strength to help him.

Thinking of this, Xie An spread out the paper ball in his hand, and he realized that it was two pieces of paper, one was a bird's-eye view and the other was a side view.

However, after watching it for a long time, Xie An didn't notice anything wrong.

Shaking his head, Xie An casually stuffed the two drawings back into his arms and said to Liao Li, "Let's go, go to Kunshan!" ”

"Yes!"

With Liao Li and more than a dozen guards riding out of the camp, Xie An went straight to the back of the mountain.

Sure enough, as Li Jing said, the drainage canal ended after digging up the mountain.

Looking at the stagnant water in the drainage canal, Xie An faintly felt that something was wrong, dismounted and climbed up the mountain, overlooking the direction of Qinhan Valley Pass.

"Something is wrong...... Standing halfway up the mountain, Xie An shook his head solemnly.

Seeing this, Liao Li was puzzled and asked, "My lord, what's wrong?" ”

Xie An let out a long breath when he heard this, raised his hand and pointed in the direction of the Qinguan Canal, and said, "Liao Li, you see, the rebels have not cut off the Qinguan Canal, in other words, these days, the water of the Yellow River has been poured into the ground through the Qinguan Canal, but you can also see that the drainage canal behind my military camp has not been dug thoroughly at all, so ...... What about the water? ”

"This ......"

"Back to the barracks!"

“…… Be! ”

Hurrying back to the barracks, Xie An came to a pit and looked silently at the calm stagnant water in the mound.

Suddenly, Xie An said, "Liao Li, go get a stick!" ”

"Your Excellency?"

"Go!"

"Yes!"

Not long after, Liao Li took a wooden stick that was seven or eight feet high and handed it to Xie An.

Xie An took the stick, poked at the hole in the earthen circle, and then frowned.

Really......

The hole has been plugged with earth......

Frowning, Xie An hurriedly came to the other potholes and poked inward with a wooden stick.

Only then did he realize that almost all the potholes had been plugged.

What the hell is going on?

The Qinguan Canal is still pouring water into the ground. But what about the water? That drain wasn't dug properly......

Xie An frowned.

At this moment, Tang Hao's shout came from afar.

"Your Excellency!"

Xie An raised his head and said with a smile on his chin, "General Tang! ”

Tang Hao hugged his fists and said with a smile, "I wonder if the adults have ever thought of the strategy used by the eldest grandson military master?" As he spoke, he lowered his voice and said, "It's not a secret, the officers and men of my two armies all hope that the adults can win!" ”

"yes!" Xie An, who had already learned the reason from Liao Li's mouth, glanced at Tang Hao helplessly, and then said with a wry smile. "It's just that I'm afraid I'm going to disappoint you this time, this official ......"

"This ......" A trace of surprise flashed on Tang Hao's face, and after hesitating for a moment, he took out a paper ball from his arms and stuffed it to Xie An.

"What is this?"

Tang Hao looked left and right, and said in a low voice, "This is the blueprint of the tunnel dug by the commander of the eldest grandson, and the last general has been thinking about whether to hand it over to the adult these days......

Xie An shook his head amusefully when he heard this. said, "Dig a tunnel." What more drawings do you need, digging towards Qinguan......"

At this point, his voice stopped abruptly.

yes, what drawings do you need to dig a tunnel?

Isn't it over digging towards Qin Guan?

Thinking of this, Xie An hurriedly opened it, and he realized that the drawings in Tang Hao's hand were also two, a bird's-eye view. A side view of a tunnel.

"Tang Hao, how many of you, have you all gotten these drawings?"

"Yes, sir!"

"Two per person?"

"Huh? How do adults know? ”

"......" Xie An's face changed slightly when he heard this, and he instructed Liao Lidao, "Liao Li, you take a trip." Bring all the drawings in the hands of all the generals to my account! ”

"Yes!"

Bidding farewell to Tang Hao and returning to his tent, Xie An compared the two drawings in Tang Hao and Li Jing's hands. Only then did he realize that the side drawings of the tunnels in his hands were extremely similar, almost no different, but the bird's-eye view was ......

Xie An vaguely felt that there was some mystery in this!

Half an hour later, Liao Li waded through the water to the tent, handed over the drawings in his hand to Xie An, and said, "My lord, the last general has asked all the generals, in addition to Li Jing and Tang Hao, there are fourteen copies of ......."

Xie An nodded, took the drawings in Liao Li's hand, and placed them on the table.

Sure enough, as he expected, every general hand

There are two copies of the drawings, one from a bird's eye view and one from the side of the tunnel.

Frowning and staring at those drawings for a long time, Xie An let out a long breath and muttered, "I see, it's ......."

"Got it?" Liao Li looked at Xie An in surprise and said strangely, "General Shu Mo really can't understand ......."

"You have to look at it that way!" As he spoke, Xie An placed eight of the bird's-eye views with the word [Qin Guan] written on them together, and then scooped up some stagnant water with his hands and splashed it on the paper.

Liao Li looked puzzled, and suddenly, his face was shocked, and he stared at the drawings, because he found that because the paper was soaked, the drawings of the eight bird's-eye views had been displayed together.

I saw that the eight tunnels on the drawings started from different locations, but they were strangely dug towards the same goal, and the destinations could almost be said to coincide, that is, near the city gate of Qinguan.

"My lord, the other eight ......"

Hearing this, Xie An glanced at the other eight bird's-eye views on the table with the words Hongnongjian written on them, and also put them together, soaked them with water, and then placed them on the right side of the previous stack of drawings.

"This is ......" Liao Li's face was shocked, and he was shocked to find that the tunnels dug on the two stacks of drawings overlapped.

Looking at Liao Li's face changing greatly, Xie An let out a long breath and said in a deep voice, "What she called people is not a tunnel, but a dark river!" From the very beginning, she had people dig from one end to two places, one leading to Qinguan and the other to Hongnongjian...... What drainage canals, they are all made for the rebels in Qinguan! ”

"Why is that?"

"If you want to take it, you must give it first! - This official only now understands the meaning of this sentence......" Saying this, Xie An took a deep breath and picked up a few doubts that he had recorded.

No wonder the eldest grandson Xiangyu chose to set up camp in a low-lying place......

It turned out that the rebels she didn't want to call Qin Guan found out that she was digging a tunnel diagonally towards Qin Guan.

According to the drawings on the side of those tunnels, each pit is dozens of zhang deep, and it stands to reason that the position of the Zhou army is so much lower than that of Qin Pass, and there is no need to dig so deep.

It is no wonder that the eldest grandson Xiangyu frequently dug tunnels to Qinguan, so that the rebels of Qinguan dug the Qinguan canal. Divert water into the ground......

It turned out that she originally planned to let the Qinguan rebels dig the Qinguan canal!

Prior to this, Xie An had also wondered if the eldest grandson Xiangyu wanted the rebels to dig up the soil under the Qin Pass by themselves, so that the land under the Qin Pass could not bear the weight of the Qin Pass and collapsed.

However, this conclusion really does not stand up to scrutiny, is it possible that the rebels on the Qin Pass are stupid? Don't they know that if they dig the foundation, the house will collapse? If you think about it, you know, the other party will not dig indiscriminately.

Their only negligence was to pour water from the Qinguan Canal into the ground......

These people did not take into account that the soil near Qinguan was loess, and the soil under Qinguan would fall off because of the erosion of the Qinguan canal. With the water potential, it rushed to Hongnong Stream along the dark river dug by Changsun Xiangyu.

In this way, the eldest grandson Xiangyu just considered the matter of scouring the soil, so he asked people to dig diagonally? Try to avoid sediment sedimentation in the water, blocking the dark river.

Because Qinguan is located at a high potential, and Changsun Xiangyu asked people to dig obliquely towards Qinguan, the soil under Qinguan is thick on the outside and thin on the inside. With the erosion of the water potential of the Qinguan Canal, this phenomenon will become more and more obvious with time. Once the soil on the inside becomes too thin to withstand the weight of the Qin Pass, it will slowly slope towards the inside.

One millimeter, two millimeters, once the limit is exceeded, the weight of Qinguan weighing tens of millions of tons will gradually press on the right-angle trapezoidal inner right angle of Qinguan, due to the reduction of the force area, the soil pressure on the inner side becomes larger. Under the action of gravity, the subsidence rate of the inner soil will be intensified, so that the entire Qinguan will tilt towards the inside......

What's even worse is that the rebels of Qinguan saw Sun Xiangyu digging a tunnel, and they also took the initiative to dig a circle along the city wall on the inside of Qinguan, and also poured water into the Qinguan Canal, so they soaked in the geology. In this way, the speed at which Qin Guan leans inward will become faster......

Thinking about it this way, the "planning is in the people, and the success is in the sky" in the mouth of the eldest grandson Xiangyu mostly refers to the water potential of the Yellow River during the flood season in September and October. Can it break down the foundation under Qin Pass?

During the flood season of the Yellow River in September and October, the Qinguan Canal was dug instead of being closed, which may be the biggest mistake of the rebels!

No!

The biggest mistake should have been that they shouldn't have poured water into the foundation of the Qin Pass after they had loosened it......

It's not right, they can't move the foundation under Qin Pass at all, when the Qin people released water to flood the sixth ** team, it was a sudden release of water, only a day before and after, but those rebels were good, and they put it for nearly a month, thinking that the foundation of Qin Pass was cement?

That's loess, that's the loess that is most likely to collapse!

When it comes to the cleverness of the eldest grandson Xiangyu, it is that she is digging a tunnel towards Qinguan in a fan-shape, and the center point is under Qinguan, so that the soil erosion under Qinguan will become more and more serious, resulting in a large-scale landslide, but on the side of the Zhou army, because several tunnels are far apart, even if there is a collapse, it is only a partial, and it will not affect the entire military camp.

From the very beginning, the defenders of Qin Pass were led by the nose by the woman of the eldest grandson Xiangyu......

If they hadn't been blinded by the action of the eldest grandson Xiangyu digging a tunnel, and hadn't followed the tunnel in a panic, and even poured water into it, perhaps, there would still be a place to fight this battle......

No, if they didn't fill the underground tunnel, this woman would probably use the tactics of digging tunnels to attack the pass, after all, the Zhou army had 150,000, and the rebels in the Qin Pass were only 60,000.

Moreover, if the rebels in Qinguan did not irrigate, the eldest grandson Xiangyu would most likely ask someone to dig up the foundation under Qinguan......

But in any case, at least the losses of the Zhou army were obviously much worse than they are now.

You must know that at the moment, the soldiers in the Zhou army camp have not suffered much loss except for the stagnant water that has been soaked for more than 20 days and their morale is a little low, and the rebels in Qinguan ......

But they have lost a majestic pass that they can see as a barrier......

Thinking of this, Xie An sighed slightly, feeling sorry for the rebels in Qin Pass.

"What a deterrent......"

Xie An smiled bitterly and shook his head.

It is not difficult to imagine that in a few days, when the rebels of Qinguan watched the Xiongguan in front of them fall violently, they would still have the fighting spirit to fight with the Zhou army?

And although the morale of the Zhou soldiers is low at the moment, once they see that Xiongguan falling, how can the morale of the whole army not rise because of this?

What a clever calculation......

In addition to the hundreds of thousands of soldiers who drowned while digging tunnels, the Zhou army can be said to be almost effortless......

Thinking about it this way, the reason why the eldest grandson Xiangyu didn't ask Li Jing and others to completely drain the water in the camp was probably because he didn't want to do a senseless siege battle, not that if the rebels in Qin Pass noticed that something was wrong, the eldest grandson Xiangyu would have nothing to do.

It's just that if she forcibly enters Qin Pass by means of a tunnel, it will go against her eldest grandson Xiangyu's original idea.

Even if it's chess, won't you give it up easily?

It's really in line with her character!

"Liao Li, this official goes out for a walk!"

"Huh? Where do you want to go? ”

"Strategist's account!"

Under Liao Li's surprised gaze, Xie An waded through the stagnant water and came to the tent of the military advisor of the eldest grandson Xiangyu.

As in the previous days, the little woman, dressed in a thin garment, lay on a bed raised with masonry, and was reading the scroll in her hand with great interest.

According to the guards outside the tent, this woman has hardly gotten out of bed these days, and even the meal is solved on the bed, you must know that you have roughly guessed the strategy she used, Xie An will probably can't help but scold this woman for being heartless, obviously the water in the camp is not so high, and she is in a good mood to stay in the tent.

Perhaps noticing that Xie An walked into the tent, the eldest grandson Xiangyu put down the scroll in his hand, took the folding fan, shook it slightly, looked at Xie An with a smile on his face, and giggled, "Xie Da joined the army, and came to the little girl's tent to listen to the information?" ”

Xie An's face was a little embarrassed, after all, a few days ago, he didn't bend this woman's words, but unfortunately, this woman was a step ahead, and she didn't reveal the slightest rumor to Xie An.

If Xie An hadn't accidentally noticed the stagnant water in those potholes today, it felt a little wrong, and where would he have thought of anything else.

"Ahem!" Xie An pretended to cough, then looked deeply at the eldest grandson Xiangyu for a while, and suddenly said, "I guessed!" ”

"Oh?" The eldest grandson Xiangyu showed a little interest in his eyes, and chuckled, "Let's hear it!" ”

I saw Xie An groaning slightly, and said in a deep voice, "Your purpose is to make Qin Pass collapse!" ”

As soon as the words fell, I heard a snap, and the folding fan in the hand of the eldest grandson Xiangyu fell on the edge of the bed, only to hear a plop, and the whole fell into the water.