In late April, Yuan Shao's army finally entered Guandu, but at this time Yuan Shao only had more than 40 troops left, including 130,000 Wuhuan cavalry.

Although Cao Cao's command has replenished some troops, it is only less than 100,000.

The gap between the forces of the two sides is still so huge, and Yuan Shao seems to have the chance to win.

However, there are also many hidden dangers in the Yuan army, the biggest of which is the more than 100,000 Wuhuan cavalry.

Because the supply line was too long, and Cao Cao sent Xiahou Yuan to lead 5,000 cavalry to cut off the grain route behind Yuan Shao, so that Yuan Shao's military rations would be cut off from time to time.

Ordinary Yuan soldiers are okay, they were recruited from the common people, and when the military food is not enough, they will be hungry for a few days at most, or eat a little less, and the burden will pass.

However, the Wuhuan cavalry did not have this idea, and they plundered local towns and villages whenever they encountered a shortage of military rations, and from time to time news of the village being slaughtered.

However, Yuan Shao was not prepared to deal with them, and the top priority now was to defeat Cao Cao, and other things could be talked about later.

So every time this kind of news came, Yuan Shao just ordered a verbal warning to Commander Wuhuan, but there would be no actual punishment. In this way, the Wuhuan cavalry acted more unscrupulously, and at the same time attracted the dissatisfaction of the Han generals.

There is also a hidden danger that Yuan Shao's strategist group is no longer enough, long before Yuan Shao sent his troops, Tian Feng was imprisoned for openly opposing Yuan Shao's rash attack on Cao Cao, and he was also imprisoned by Yuan Shao during the march.

Now the strategists under Yuan Shao's command are left with the judge, the judge, the discipline, Xu Yu and others, and the judge was left in Yizhou by Yuan Shao, so that now there is almost no one available under Yuan Shao's command.

The generals Yan Liang and Wen Chou were killed one after another, Ju Yi kept the rear, and the front-line generals were left Zhang He, Gao Lan, Chun Yuqiong, etc.

But Yuan Shao did not have these worries in his heart, his victory was in front of him, Guandu was Cao Cao's last line of defense, as long as he defeated Cao Cao here, he would be able to take Xu Du directly and achieve immortal achievements.

At the same time, with the troops of You, Ji, Yan, Qing, Xu, and Henan, he first broke Qin Hua and then destroyed Liu Biao, and the world seemed to be within reach.

Cao Cao's strategy of using Xi Zhicai was indeed successful, and Yuan Shao's army was weakened a lot, but at this time, the remaining 400,000 troops still gave Cao Cao a headache, and even his head began to ache faintly.

Xi Zhicai finally couldn't bear it anymore, vomiting blood every day, it was already difficult to get out of bed and walk around, even if it was Cao Cao, he didn't want to disturb him too much.

The most important thing is that the military rations in Cao Cao's army are about to run out, and if there is no military rations, then Cao's army will inevitably collapse without a fight.

Just when Cao Cao had a headache about this, Cheng Yu came over to offer a plan.

"Feeding on human flesh?"

After listening to Cheng Yu's words, Cao Cao's head wind was actually much better.

"Making human flesh into minced meat, the soldiers will not find out, supplemented by the remaining military rations, it is enough to support half a month."

"This...."

Cao Cao stood up from the bed and kept pacing in the tent with his feet closed.

"My lord, the messenger sent to Xudu has not replied for a long time, if this is not done, our army will run out of food and grass in five days, and there will be no strength to fight at all."

Cannibalism is really against the way of heaven, Cao Cao couldn't make a decision, and at this time, the soldiers came to report, and Xi Zhicai finally didn't survive and just passed away.

Cao Cao didn't have time to think about the problem of grain and grass, and hurriedly came to Xi Zhicai's tent.

There are two letters next to Xi Zhicai's pillow, which are the last plan he made for Cao Cao.

Cao Cao opened the envelope sadly, and after reading the first letter, Cao Cao's face had a trace of joy, but he soon fell into sadness again.

With such a resourceful person gone like this, how could Cao Cao not be sad.

In order to be able to continue the strategy of Xi Zhicai, Cao Cao finally decided to agree to Cheng Yu's attention, and the soldiers who suddenly got meat were very happy, they thought that the grain and grass were running out at first, but they didn't expect that there was still meat to eat at this time, so the morale had increased a lot.

After Cao Cao waited for ten days, he finally waited for what Xi Zhicai said.

That day, Cao Cao was resting in the camp because of the head wind, and suddenly heard someone outside the tent shouting Meng De, and Cao Cao immediately heard that it was Xu You's voice.

Xu You was friends with Cao Cao and Yuan Shao when he was a teenager, and this person also had great talents, but Xu You voted for Yuan Shao instead of him Cao Mengde.

"It turned out to be Ziyuan, come in with me."

Cao Cao was dressed in pajamas, not even wearing shoes, hurriedly walked out of the tent, and pulled Xu Yu to the tent.

Seeing Cao Cao's appearance, Xu You couldn't help but feel a little moved in his heart, this person still regarded himself as his friend. On the other hand, Yuan Benchu, since he voted for him, he was like his courtier, and this time he didn't miss the old feelings and expelled himself from the tent.

It turned out that a day ago, Xu You inspected Yuan Shao's army, and suddenly heard that Cao Cao was caught.

When he took out the letter in his arms, he saw that it was actually a letter from Cao Cao asking Xu Du to transport grain.

Xu You knew that he would be overjoyed in the future, he knew that Cao Cao's army had no food, and at this time, he only needed to send an army to attack Xu Du, and Cao Cao actually defeated himself without attacking.

Happily took the letter to Yuan Shao's camp to prepare for the performance, and happened to meet a soldier who came to report.

It turned out that the grain and grass sent from Yizhou were successfully delivered, and Yuan Shao's heart was much more stable, with this batch of grain and grass, Yuan Shao would not have to worry about the problem of grain and grass in a short time.

As soon as I wanted to ask Xu Yu what was going on, I heard the soldier say that there was also a letter from the judge.

Yuan Shao decided to listen to the letter first and then ask Xu You, but he didn't want the soldier to read the letter halfway through and then he couldn't read it.

"What are you doing, read it."

Yuan Shao said impatiently.

The man glanced at Xu You, then at Yuan Shao, and when he saw Yuan Shao glaring at him angrily, he read it again.

"In the past few days, the county government has received reports from the people, and it has been verified that the Xu You people have repeatedly forcibly purchased the people's land, bribed local officials, accepted other people's property, and injured and killed more than 10 people.

"Hmph"

Hearing that the soldier finished reading, Yuan Shao slapped the table suddenly.

"Xu Ziyuan, what else do you have to say?"

"My loyalty to the lord can be seen in the world, and I ask the lord to see it. I have just intercepted Cao Cao's messenger and received a letter from Cao Cao, he now has no food in the army, our army only needs to send an army to make a detour to attack Xudu, and Cao's army will be defeated. ”

As he spoke, Xu You handed the letter to Yuan Shao.

Yuan Shao glanced at it slightly, he naturally recognized Cao Cao's notes, but he didn't have the slightest appreciation, and slapped the letter on Xu You's body.

"Cao Mengde is scheming, this must be his conspiracy."

"My lord, this is a once-in-a-lifetime opportunity, and it must not be lost."

"You unvirtuous man, I need to use your schemes. Come, and cast him out of the tent for me. ”

Seeing that Yuan Shao did not forgive himself, Xu You picked up the letter on the ground and stuffed it into his arms, and was pulled out of the big tent by two soldiers.

"Judging and harming me, please see the lord."

When he was dragged out, Xu Yu was still shouting.

After leaving the big tent for a long time, Xu You shook off the two people who were holding him and walked towards his camp.

Seeing from a distance a prisoner's suit, locked next to the grain truck, Xu You made up his mind.

"Yuan Benchu didn't listen to his advice, and he will be captured by Cao Cao in the future, why don't I go to Cao Cao?"

So there was the previous scene, Cao Cao pulled Xu You into his big tent and told his admiration.

Xu You also looks like a master, constantly listening to Cao Cao's reality and reality.

"Is it enough for Cao Gong's army?"

"That's enough for a year."

"Haha, Cao Gong is like this, then we have nothing to talk about. Xu took his leave. ”

With that, Xu Yu was ready to get up and leave.

"Hey, don't worry, in fact, the food in our army is only enough for half a year."

This time, Xu You didn't speak, just looked at Cao Cao with a smile.

Cao Cao also knew that he couldn't hide it from Xu You, but he didn't have the slightest embarrassment after the lie was exposed.

"Hey, in fact, the food in our army is only enough for three months."

This time, Xu You did not continue to detour with Cao Cao, and took out the letter from his arms and handed it to Cao Cao.

"There is no food in Cao Gong's army."

Seeing his handwriting, Cao Cao was shocked, but his complexion did not change much, and he quietly waited for Xu Yu's next words.

"This is what I got from Cao Jun's meticulous work, I originally wanted to persuade Ben Chu to send an army to attack Xu Du, and then Cao Gong's army will inevitably be in chaos, so there is no suspense in this battle. However, Yuan Ben was indecisive and didn't listen to advice, so I came to Mengde. ”

It wasn't until Xu You finished speaking that Cao Cao spoke again.

"Fortunately, Yuan Shao didn't listen to the public, otherwise I would have been defeated."

As he spoke, he pulled Xu You back to his seat again and poured him a glass of wine himself.

"I don't know if Ziyuan has a clever plan to help me break Yuan?"

"Yuan's army is powerful, if you want to break it, you will destroy its grain and grass. Does Cao Gong know where Yuan Jun's grain and grass are hoarded? ”

"Please also ask Ziyuan for advice."

Cao Cao actually probably knew where Yuan Jun was hoarding grain, but he still waited for Xu Yu to explain.

"The grain and grass of the Yuan army are all in the black nest, and Cao Gong only needs to capture the black nest, and he will definitely be able to burn the grain and grass of the Yuan army."

"But Wuchao is the grain of the Yuan army, and it must be heavily guarded, how can it be easily burned?"

"The Wuchao guard will be Chun Yu Qiongnai, a drunkard, drunk and dreaming of death every day, even if the Wuchao has 50,000 troops stationed there, it is not a matter of worry."

"This time to break Yuan, Ziyuan should be the first credit."

After saying that, Cao Cao ordered the generals to be summoned to discuss the seizure of the black nest.

Cao Cao decided to personally lead an army of 30,000 to attack Wuchao, and Cao Ren and Le were stationed in the garrison camp to prevent Yuan's army from sneaking up.

Sure enough, as Xu You said, the Wuchao defenders were loosely disciplined, and they collapsed under the rush, but in just two hours, the Cao army burned down the granary of Wuchao, and the fire in the sky could even be seen in the main camp of the Yuan army.

The grain and grass of Yuan's army were destroyed, Cao Cao's heart was much more settled, and the war with Yuan Shao was finally won by himself.

At this time, what Cao Cao was grateful in his heart was not Xu Yu who offered advice, but Xi Zhicai, who had already passed away.

Because of the two letters that Cao Cao got at the beginning, one of them was the matter of Xi Zhicai's separation from Xu You, including the people's report on the Xu You clan, as well as the bribery and trial of the officials around him.

Xi Zhicai said that Xu Yu was Yuan Shao's confidant, and as long as he turned his back on Yuan Shao, Cao Cao would gain great resistance.

Things turned out to be as Xi Zhicai expected, after Xu You voted for Cao, he broke the situation between Yuan Cao and Cao in one fell swoop, and Cao Cao suddenly changed from a disadvantage to an advantage.