The situation of Wuguan is very dangerous, and it is really "one man guards the base, and ten thousand people stagnate and stagnates". The people of the Southern Dynasties have "Returning to the Soul" and praised:

He Wuguan is dangerous, and Han Zu is a hero.

The mountains are thousands of miles and the clouds and rain are up, and the water is hundreds of miles and the rainbow is written.

If one man guards the pass, how can all the people attack?

The Tang people also have the poem "Wuguan":

Time comes and goes, if the cycle is circulating, the two closed flat clouds lock the mountain.

only taught Qin to set up risks, and did not know that the sky and the Han were related.

Don't be greedy for life, don't make a thousand-year plan, and it will become a dream when you arrive.

Fighting for it is like a rock going into the water, and it is from his rise and fall to his own humbling.

It is precisely because Wuguan is the throat of Jingchu leading to Guanzhong that the soldiers of the Chu army are ruthless, and they are determined to fight a bloody battle with the Qin army here, and to raze the majestic Wuguan city tower to the ground. The Chu army had 100,000 people at this time, and they came to a place not far from the gate and set up camp, and Pei Gong arranged the soldiers and horses into a formation according to the terrain. At this time, the morale of the Chu army was high and energetic, and the neat and majestic queue had filled all the ravines and heights in front of the pass. The sound of the military horses tapping and the rolling of the chariots, coupled with the strong wind blowing the mountains and falling trees, seemed to be the roar of a dragon and a tiger; Red battle flags and jagged weapons are also hidden among the autumn mountain rocks, and from a distance, they look like brilliant clouds.

Pei Gong stood on the chariot and looked around, he looked at the terrain and said to the soldiers: "It's really easy to defend and difficult to attack, it seems that our army is not needed today." Zifang said: "I wonder if the Qin State has increased its troops?" It is better to shout and demonstrate first, so that the Qin army guarding the pass can panic, so that you can find some flaws in the Qin army. Pei Gong Wei Zifang's order was to obey, so he instructed Cao Shen, Fan Xu, Zhou Bo and other generals to convey orders to their respective teams, asking everyone to look at the instructions of the Lingqi and shout together: "Enter the Guanzhong!" Destroy the Qin State! Kill! Kill! Kill! ......" The shouts of thousands of people suddenly shook the mountains and valleys, and the birds and beasts within a hundred miles were frightened and fled in a hurry.

The voice reached the pass, and the Qin army guarding the pass saw the formation of the Chu army, and was really frightened into a mess, so they hurriedly reported to the captain of Guandu. Zhu Kuai, the commander of the Qin State, heard that the army of Chu was pressing, so he came to the pass to inspect, and sure enough, when he saw the Chu army stuffed with black pressure in front of the pass, he was so frightened that the six gods had no master, and hurriedly ordered everyone to guard the gate, and then immediately reported to Xianyang.

The Chu army challenged under the pass, and the Qin army did not dare to come out to fight. Pei Gong wanted to attack Wuguan. The ovary said: "Now that the second is dead, and the Huns have invaded the north again, the Qin State has already taken care of one thing and the other. Although they concealed the truth from the soldiers guarding the pass, the news of Zhao Gao's killing of the second emperor would soon come. If the soldiers of the Qin State learned the news that the second emperor had died, the army's morale would definitely be slack, and if they launched another attack at that time, Wuguan would be self-defeating. Xiao He suggested: "You might as well send a clever man first, nominally to recruit the Qin army, but in fact, it is also to find out the truth." Li Shiqi volunteered: "If there is something to talk about, I am willing to go." Pei Gong was overjoyed and said: "Mr. Ning Chang, who was sent the day before yesterday, has no news so far, Mr. must act at the opportunity!" If the thieves do not come down, please come back safely. Li Shiqi agreed to say goodbye to Pei Gong and went to close it alone.

The generals of the Qin State were closing the arrangement of defensive equipment, and suddenly saw someone coming, so they reported to Guan Duwei. Zhu Kuai looked at the front of the pass, and saw a person riding a horse to the pass, so he asked, "Who are you?" What are you doing here? Li Shiqi replied: "I am the envoy of the Chu State, and I have something to talk to Lord Duwei!" Zhu Kuo smiled and said: "The two countries are at war, only the blades meet, you let Liu Bang come to surrender, nothing to do with you!" Li Shiqi said: "Please open the gate and let me in, there is indeed something important to discuss with you!" General Yang Wu said: "An old man, what is there to talk about, one arrow is killed!" Zhu Kuai's deputy general Lu Sheng said: "The two countries exchange troops, and they don't cut the envoys, this is the rule." You might as well let him in and listen to what he has to say, and if he doesn't say it right, it's never too late to kill him. Zhu Kuai obeyed Lu Sheng's words, asked the sergeant to open and close the door, and let him enter the customs.

Li Shiqi came to the gate and saw Zhu Kuai, and said: "General, the second emperor is mediocre and cruel, which has aroused the resistance of the people of the world, so the six kingdoms have all been restored. However, the second emperor didn't know anything about the war in the east, which was the result of Zhao Gao's deception. Now Zhao Gao was afraid that the second emperor would know the truth and surrender to the crime, so he killed the second in a frenzy, and usurped the military and political power, and the Qin State was already in Zhao Gao's control, do you know these things? When Zhu Kuo and the other generals of the Qin State heard this, they were simply stunned. Li Shiqi continued: "Do you know that Zhao Gao sent an envoy to divide Guanzhong equally with my family's Pei, and he would have betrayed you a long time ago. Pei Gong was afraid that you would not know about this, so he specially sent me to inform you. Please think about it carefully, are you continuing to guard the pass for Zhao Gao? Or do you give yourself a back path? Please reply to me. When Zhu Kuai heard that the second emperor was dead, he didn't believe it at all, and laughed and said, "You old thing, you really know how to tell jokes!" The Second Emperor is fine, how can he die? I see that shepherd boy of yours, King Chu Huai, is dead! After Zhu Kuai finished speaking, he suddenly scolded: "You old thing is talking such nonsense, come on!" Push him out and cut him down! Li Shiqi looked up to the sky and laughed, so he explained in a hurry: "Your prime minister has already killed the second emperor, and he is just worried that you will not guard the pass for him, so he will not let you know the news." If you don't believe it, just wait, there will be news from Xianyang. Zhu Kuai suddenly remembered that Ning Chang went to Xianyang, and knew in his heart that Zhao Gao and Chu Jun did have a leg, so after thinking about it, he said: "How the Second Emperor is now, this is not for us to speculate. And you old thing came to the gate, and you talked such nonsense, aren't you afraid of death? I was going to cook you, but at your age, I told you to go back and tell Liu Bang to surrender as soon as possible, otherwise you will die without a place to be buried!" Li Shiqi said: "In this case, please ask General Zhu to agree on the date of the battle, so that I can go back and hand over the order." Zhu Kuai sneered: "Tomorrow's decisive battle." Li Shiqi took his leave.

After Li Shiqi left, Zhu Kuai and the generals began to discuss the affairs of the imperial court, and they didn't know whether what Li Shiqi said was true. In the evening, someone suddenly reported from Xianyang Pegasus that Zhao Gao had really killed the second emperor. When the soldiers heard the news, they were shocked, and some even said indignantly: "Zhao Gao is really a rebellious minister and thief who deceives his superiors and subordinates!" Now that he has killed the emperor, he must seize power and usurp the throne, maybe he has become the emperor now. There are not many soldiers and horses here, how can we resist Liu Bang's 100,000 army? Even if we win the battle now, we don't know where we will live in the future. The soldiers began to talk about it.

Why did Li Shiqi tell the truth to Qin Jun? It turned out that this was a ploy, just to let Qin Jun know Zhao Gao's wolf ambitions, and stir up infighting, so as to take advantage of it. When Li Shiqi came to the Chu camp, he told Pei Gong that Qin Jun did not know that the second emperor was dead. The next day, Pei Gong ordered Mei Kai to serve as the vanguard of the Qin invasion. Mei Kai led the military horses of his headquarters to challenge at Guanxia, but he challenged for a long time and did not see Zhu Kuai come out. Everyone listened carefully, and there was a cry when it was closed. Mei Kai sent someone to report to Pei Gong. Zhang Liang analyzed: "This must be the Qin army guarding the pass who knew that the second emperor was dead, and they cried bitterly when they thought that they had no place to return to, and they were in a dilemma." Now invite Mr. Li to go to the gate, and blame Zhu Kui on the grounds that he will not fight, and listen to what they have to say. Li Shiqi came to the gate again. After he saw Zhu Kuai, he said: "We have already made an appointment for the battle, why doesn't the general switch the decisive battle?" Zhu Kuai also said truthfully: "Don't hide it, sir, yesterday there was indeed news from Xianyang, saying that Zhao Gao traitors killed the second emperor. This news was also too sudden, and the soldiers couldn't accept it for a while, so they were very sad. Now I don't know if the Qin State can be preserved, how can I still have the heart to fight? Li Shiqi said: "In this case, the general might as well welcome the Chu army into the customs, and let's avenge the second emperor together!" Zhu Kui said: "What Mr. said is also reasonable, please go back and tell General Liu first, let him have a few more days, let's discuss it carefully, and see if it is a war or a surrender?" Li Shiqi took his leave.

After Li Shiqi left, Zhu Kuai encouraged the generals of the Qin State and said: "Zhao Gao's traitors and Chu people colluded to kill the emperor!" As Qin generals, we should be loyal to the country. I have already informed the generals guarding the situation here, and now I am ostensibly dealing with the Chu people, but in fact, I just want to drag Liu Bang, which is just a delaying tactic. If the imperial court sends another reinforcement army, we will switch to a decisive battle, and we must repel the Chu people! "Despite how impassioned and inspiring Zhu Kui was, the soldiers were still not sure about defeating the Chu army.

Li Shiqi came back and reported the situation of Wuguan to Pei Gong. Zifang said: "Now that the second is dead, if the Qin State sets up another virtuous monarch, I'm afraid it will be difficult to enter the customs." Pei Gong asked Xiao He to immediately write a letter of persuasion, and asked him to shoot an arrow at the gate, which said:

Chu General Liu Bang told all the Qin army: Those who surrender will not die, and if they resist, they will all be killed after the army enters the pass!

Zhu Kuai was furious when he saw it, so he tore up the letter. However, some people were very afraid, and at night, some people secretly ran down the pass to surrender. Pei Gong gave them food and wine, and then comforted them with good words. The next day, Zhu Kuai found that someone had fled, so he stood on the Guan Tower day and night to inspect, and he sighed and burst into tears. It turned out that Zhu Kuai saw that their wives and children were all in Guanzhong, if they surrendered to the Chu people, their families might suffer, if they didn't surrender, where would everyone's future be? When Zhu Kuai thought of this, he sighed.

Suddenly, a cool breeze hit, followed by heavy rain. Zhu Kuai walked down the building very helplessly and came to the barracks to take shelter from the rain. Unexpectedly, the rain kept falling, and until the next night, the rain was still falling, and the water on the flat ground was already half a foot deep. Yang Sheng, a staff general, suggested to Zhu Kuai: "Now that the autumn rain is like a note, why don't you intercept the upper reaches of Danshui and build a dam, and the Chu army will drink horses and water between the valleys in a few days." When they were defenseless, they suddenly dug up the embankment. Although Liu Bang has an army of one million, he will be swept away. If we kill again, we will go out, and those who are not dead will become ghosts under the sword! After listening to Yang Sheng's words, Zhu Kui felt that this strategy was indeed a good strategy to turn defeat into victory, so he immediately sent him to lead his sergeants upstream to block the embankment, and also dug up all the paths leading to Wuguan.

There are many soldiers and horses in the Chu army, and it is very difficult to eat and live in a few days, especially for people and animals. Pei Gong ordered the soldiers to take tools to the Danshui River to fetch water for cooking. That night, the ovary and Pei Gong inspected the terrain, and they saw that the people and horses in the ditch were crowded, and the ovary suddenly woke up, and hurriedly called the soldiers of the Qin State to ask: "Is there a river embankment dam in the Guannei?" The sergeant said no, but it was possible to intercept the river and block the dike. The ovary was shocked and said to Pei Gong: "Now that the autumn rain continues, the Danshui River will naturally rise, if Zhu Kuai blocks the waterway from the upstream and builds a dam, and then releases water to flood when the water gathers more, your 100,000 army will ...... Let's move our camp to higher places! Pei Gong was also shocked, and immediately ordered all to evacuate the river valley.

At this moment, Zhu Kuai had already learned that the Chu army was fetching water by the river for cooking, and the men and horses gathered together, and he was overjoyed, so he ordered the sergeant to break a hole in the embankment. The water rushed down in an instant, and the flood peaks were like avalanches, and like wild horses that had escaped from the brisle, rolling over the untamed wildness and attacking downstream. However, the Chu army had all moved to a safe place at this time, and the men and horses did not suffer any losses, which was all due to Mr. Zifang.

After dawn, Zhu Kuai hurriedly sent people to inquire about the situation of the Chu army, and did not find that they were flooded, nor did they find that they were evacuated, but found something that made all the Qin soldiers feel panicked, it turned out that the flood had collapsed the city wall on the south side of Wuguan dozens of zhang. In this way, if the river recedes completely, the Chu army can enter Wuguan smoothly from there without the need to fight, and this flood has indeed helped the Chu army a lot. While Qin Jun was wailing and crying, the Chu Jun outside the gate was very happy, and they gathered together and screamed: "Great, God has done us a great favor!" Hahaha! When Pei Gong saw the wall of Chengguan collapse, he also pointed and danced happily. At the same time, General Qin advised Zhu Kuai, the commander of Guandu, to find a way as soon as possible, otherwise when the river receded, the Chu army would be killed. Zhu Kuai was also crying out for heaven and earth at this time, and he was very sad, so he had to say: "God! Why don't you help Chu and not Qin? After a while, Zhu Kuai said again: "There is only one way to do it now!" And they asked what was the solution. Zhu Kui said: "Our army can only re-dig the river and lead the Danshui to the wall. When the Chu army attacked, they would flood them with water, and even if they didn't drown them, they would not want to enter Wuguan for half a step. The generals listened to Zhu Kuai's plan, and everyone acted according to the plan.

At dusk that day, before the river had completely receded, the soldiers of the Chu army had already launched an attack. But when they came to the river, they saw that although the river had receded, they could not cross it at all. The ovary climbed to the high ground to watch the night sky, and suddenly found that there was a big star shining brightly in the crape myrtle wall, but it was always erratic. The ovary was shocked, so he hurriedly came to Pei Gong and said: "There is a Ming monarch in the Qin State who has succeeded to the throne. Fortunately, the flood washed away the Guancheng, otherwise Ming Jun would have succeeded to the throne, and he would definitely send troops to reinforce him, and it would not be easy to enter the pass at that time! Everyone was shocked when they heard the words of the ovary. Xiao He said: "Ming Jun succeeds to the throne, he will definitely be incompatible with Zhao Gao, if the new monarch kills Zhao Gao and then sends a large army to reinforce us, we will be afraid of going to the end of the customs." The ovary said: "Although this is the case, I look at the surroundings of the Emperor Star, and there is a lack of stars for surrounding. It shows that this enthroned Ming Jun is not assisted by ministers, which means that although he has ambitions, he is also lonely. Now please Pei Gong hurry up and take the Wuguan. Pei Gong sent Mei Kai to lead his army and horses to the river again.