Sima Yi led the ironclad soldiers to march to Xiayi, full of ambition all the way, and rushed to Yu County. The military scout suddenly came to report: "Liu Bang sent Zhou Bo to lead the army to fight, not far from Yu County. Sima Yi asked how many soldiers and horses there were. The reply was about a thousand people. Sima Yi laughed and said, "With only a thousand soldiers and horses, how dare you confront my army of 30,000 tigers and wolves!" All of you have a good night's sleep tonight, and early tomorrow morning, I will kill Zhou Bo's camp, cut off the heads of the rebel generals in one fell swoop, and then attack Xiayi directly. The soldiers all claimed yes.

The next day, when the Qin army left Yu County and came to the camp of the Chu army, they found that Zhou Bo had disappeared. The detective reported: "Zhou Bo retreated ten miles. Sima Yi laughed wildly when he heard this: "Zhou Bo originally wanted to start a war with our army, but when he found out that our army was so strong, he was scared away." Adjutant General Ding Wen said: "Could it be that the enemy is luring us?" Sima Yi said: "It was originally a rabble, but now that he has fled after hearing the wind, how dare he fight against the army of tigers and wolves?" Not to mention seduction! So he urged the horses to move on. Sima Yi chased ten miles, and Zhou Bo retreated another ten miles. This time Sima Yi was even more unscrupulous, and then chased for ten miles. But who expected that Zhou Bo had already followed Zhang Liang's instructions and returned his soldiers and horses to the city. When Sima Yi got the report, he led the soldiers to the city, and the horses were arranged very neatly.

Pei Gong and the others saw that the Qin army was all in iron armor and iron helmets at the head of the city, they were holding a large shield in their left hand and a long weapon in their right hand. Sima Yi rode a tall horse and stood under the banner of the door, with bright clothes and armor, and a majestic appearance. The two armies remained silent for a moment, and Sima Yi shouted loudly: "Liu Bang villageman! Zhang Liang assassin! Last time, because I miscalculated for a while, I fell into a treacherous plan, this time I must capture you two alive, and come out quickly to fight the male and female! Zhou Bo stepped forward to ask for battle. Pei Gong asked Zhang Liang if he could play. Zhang Liang said: "You can fight, but you must lose!" Zhou Bo asked if there were any other instructions. Zhang Liang said: "First show him weakness, pride him, and then use strange tricks to break him." Zhou Bo gave the order, Tigo went down to the city, and shouted: "Open the city gates!" Then he rode out. Zhou Bo followed Zhang Liang's instructions and came to the battlefield to fight with Sima Yi for more than a dozen rounds before returning to the city. Seeing that his opponent was defeated, Sima Yi was very manic, and continued to challenge while his morale was strong. But Zhang Liang resolutely did not allow him to fight anymore at this time. Time was short, it was getting dark, and the two sides had to stop fighting.

The next day, Sima Yi continued the challenge. According to Zhang Liang's suggestion, Pei Gong sent Cao to fight without injury. Cao Wuxian didn't play a few rounds before returning defeated. Sima Yi won one after another and was very proud. On the third day, he challenged Pei Gong again. Pei Gong sent the king to fight. The king sucked out his horse, fought a few rounds, and returned to the city defeated. After three days like this, Sima Yi was already very impatient, so he ordered the siege of the city. However, when the Qin army attacked the city, it was unable to climb to the top of the city because there were no siege equipment. Pei Gong's crossbowmen could not hurt them, because the armor of the Qin army was very thick. The Qin army crowded to the city, Sima Yi jumped like thunder, and surrounded the city, the more he wanted to fight quickly, the more Zhang Liang persuaded Pei Gong to ignore it. The morale of the Qin army gradually slackened.

At dusk that day, Zhang Liang saw that the morale of the Qin army had slackened, so he decided to fight, and he came to the city and shouted to Sima Yi: "General Sima Ben is in a remote county, what an honor for the people!" We dare not fight you because we are afraid of hurting the people. But you won't go back without a fight. You must also love the people, right? So I have a condition, I don't know if the general will agree? Sima Yi thought that Zhang Liang was going to surrender, so he asked confidently: "Are you going to surrender?" Zhang Liang said: "It's not that you want to surrender, it's because your soldiers and horses are too strong, and we don't dare to fight." But if the general can let us out of the city and look for a place outside the city, we can both fight a big battle, so that it will not hurt the innocent. When Sima Yi heard that the Chu army would not surrender and would have a big battle, he sneered: "In short, you all have to die, why die outside the city?" Adjutant General Ding Wen said: "This may be Zhang Liang's trick again, and the general can't agree to him." Sima Yi laughed and said, "The two thieves wanted to escape, so they came up with this bad idea. I will do what I want, and as long as they come out, I will be annihilated in one fell swoop. Ding Wen said: "I was ambushed by them last time, if you are not cautious this time, you may have to suffer a loss?" Sima Yi said triumphantly: "The enemy is only a few thousand people, and there are no reinforcements, how can they resist my 30,000 ironclad elite soldiers?" If the thieves don't go out of the city, I won't be able to attack them. But once they are out of the city, they will not be able to escape even if they have wings! Quickly pass my general order, withdraw all the soldiers and horses at the east gate, and let them out, so that Zhang Liang and Liu Bang will definitely be captured alive! Ding Wen always felt that something was wrong, and he wanted to admonish him again, but Sima Yi became angry. Ding Wen didn't dare to say anything more.

When Zhang Liang saw that the siege had been withdrawn from the east gate, he asked the soldiers to take off their armor, throw away their shields, and quickly leave the city with all their wooden-handled weapons. At this time, Zhou Ke and Zhou Wei were also ready outside the city, and they set up a formation around Jutie Mountain. Pei Gong and Zhang Liang led the two thousand soldiers and horses in the city out of the city to meet Zhou Ke, and Zhang Liang asked Zhou Ke: "Are you ready?" Zhou Ke replied: "I did everything you told me." Zhang Liang was very happy, and immediately went to Gaofu with Pei Gong to command the battle. At this time, all the Chu troops were lightly armed and all entered the position.

The military scouts sent by Sima Yi outside the city came to report, saying that the enemy had taken off their armor and left the city, and the people outside were also dressed lightly, for some reason. Sima Yi heard this and shouted, "It's just that they want to run faster!" Although Sima Yi was light on the enemy, he was still cautious, and carefully inquired if there were any enemy ambushes around. The spy replied: "It is true that no soldiers and horses have been found within a radius of ten miles. Sima Yi was relieved at this time, and immediately led the Qin army to kill forward. When they came to the place where the Chu army had set up their formation, they saw that everyone was bare-chested and bare-armed, all of them were holding wooden sticks and farm tools, and some of them were still lying and sitting in a crooked manner, not at all like they were going to fight. When Sima Yi saw this, he simply laughed, and said loudly: "Are you going to farm or harvest wheat?" Ha ha! Hey! Sima Yi commanded all the Qin troops to kill them.

But when all the Qin troops came to the position, everyone felt that there was an invisible force that pulled them to the ground, and also pulled the Qin army off their horses, and they all collapsed on the ground. The big shield in Qin Jun's hand was also tightly attached to the ground, and he couldn't pick it up. Sima Yi's mount couldn't run at this time, and he was very surprised. At this moment, the shouts of the Chu army were suddenly heard from all directions, and then the Chu army rushed to the Qin army, raised the farm tool and stabbed, slashed, and smashed it on their heads. Everyone in the Chu army was very relaxed, but the Qin army could not control themselves at all, allowing the Chu army to cut, smash, beat, and kill, without any ability to resist. The shouts of the Chu army were earth-shattering. Sima Yi was shocked, so he jerked his mouth a few times, trying to verify what was going on. But the big mouth only made him very scorching, that is, the weapon in his hand was completely out of order, and he couldn't lift it, let alone fight again, he thought that this was the god helping the Chu army, and the morale was suddenly exhausted.

It turned out that this place called Jutie Mountain was a magnetite mine, and Zhang Liang had already detected it clearly. Before this, he had also learned that Sima Yi's army was all ironclad elite soldiers, and they all carried large iron shields and weapons. Based on this situation, Zhang Liang took advantage of the pride of the Qin army and set up a position here. And Sima Yi also found out that the Chu army was small and there were no ambush soldiers, so he boldly agreed to the Chu army to go out of the city to fight. As a result, the shields and armor of the Qin army were attracted by the magnets in the ground and could not stand up, and the 30,000 Qin troops became wasted people, and were arbitrarily hacked and killed by the Chu army, and most of them died. Zhou Bo galloped to find Sima Yi for a decisive battle. With his bravery, Sima Yi forcibly broke free from the position and fled in defeat. Pei Gong ordered the soldiers of the whole army to take advantage of the victory to pursue and kill Sima Yi. After Sima Yi fled the position, he still felt that the armor on his body was a burden, so he took it all off and threw it away, and the Qin army wore underwear and only ran for his life, and sure enough, he rushed in the direction of Yuxian. When he was about to reach the city, he saw that there were fewer and fewer soldiers following him, and his heart was full of grief, and he cried out, "The demons and gods are helping the traitors!" After saying that, he was about to draw his sword and commit suicide. Ding Wen hurriedly grabbed Sima Yi's sleeve and cried to dissuade him from seeking death. Sima Yi said very hatefully: "I regret not listening to you, once again leading to defeat, what face do you have to go back to see your uncle and the general?" Ding Wen said: "Return to Yu County first, and then wait for the rescuers." Sima Yi had no choice but to rush to Yu County.

Everyone came to the city, and suddenly the banner of the Chu army was erected on the head of the city, and I saw a general, with a long bronze face and a majestic beard, so he stood up and said: "Ignorant child, reckless horseman!" I am Cao Shen, the general of Pei Gong, and I have seized the city by the order of Mr. Zifang! And he gave the order to release the arrows. For a while, arrows rained down on the city, and they shot at Sima Yi in unison. Sima Yi panicked and turned around and left, but because he had no armor on his body to protect him, he had already been hit by several arrows. The generals hurriedly protected him and fled for his life. While he was running, Cao Shen had already chased after him from behind, and he killed and scattered the army, looking for Sima Yi to fight. Sima Yi was already seriously injured at this time, and he could no longer fight, and was hacked to death by Cao Shen under his horse. Ding Wen saw that Sima Yi was dead, so he had to flee for his life in panic. At this time, Zhou Bo also killed, and killed Ding Wen with an arrow. Cao and Zhou duo then joined forces and continued to pursue and kill the Qin army, taking advantage of the victory to capture Mengxian County along the way, winning a complete victory, and capturing countless booty.

When Pei Gong heard that Sima Yi was dead and that the Chu army had also obtained two cities, he was very happy and held a banquet in Xiayi to celebrate. He also had people write a proclamation to the people, announcing the abolition of all harsh laws and regulations. When the people saw this, they were overjoyed, and they ran to tell each other, and everyone came to pay homage to Zhang Zifang, the great hero who had assassinated the first emperor, and they were competing to join the army, and the city was jubilant.