Cao Cao doesn't have many options, Yuan Shao is too strong.

The next day, Yuan Shao ordered an attack very early.

The difference is that this time Yuan Shao returned to the camp in the rear, and the front line was led by Yan Liang.

Yan Liang led tens of thousands of troops to kill him.

This time, attacking again, Zhang Ming blocked an entrance and exit, and did not attack, so it was good to be able to contain some of the enemies.

This attack was not very intense, but both sides dealt with it carefully.

The two sides attacked and defended for a day, and there were thousands of casualties, but there was no result, so Yan Liang retreated.

At night, both sides defended carefully.

Three days later, Yan Liang tried a night attack, but there was no result, and he led his troops back.

The next day, Yan Liang attacked three more night attacks in a row, but to no avail.

Two days later, Cao Cao also tried to attack at night, and was eventually driven back.

Both sides attacked and defended several times, but there was no result.

Cao Cao is under increasing pressure.

At this time, Cao Cao also had many rebellions in their rear, which was very unstable.

People's hearts have changed, and Cao Cao may be destroyed at any time at this time.

Under the crisis, Cao Cao meditated hard and studied day and night with Cheng Yu and Guo Jia.

Cao Cao had a headache, but he still forcibly endured it and continued his research.

Cheng Yu and Guo Jia came to the conclusion that it must be ended as soon as possible, otherwise it will be very dangerous.

Cao Cao also wanted to, but his strength did not allow it.

"What's the best way to do it, two?"

Guo Jia said: "My lord, I can only take a risk. ”

Adventure, now Cao Cao has been forced to rush.

There are many rebellions in the rear, and if they continue, they will also collapse internally.

He wasn't afraid to take risks now.

"But what's the plan?" Cao Cao rubbed his head and said.

Guo Jia said: "The only way to do this is to attack their military rations, which is the only way to force Yuan Shao to retreat." ”

"Sneak attack on their military camp, even if we kill their army of thirty or fifty thousand, Yuan Shao can quickly organize an army."

"There is only grain and grass, and there is no way to supply it immediately."

Cao Cao sighed and rubbed his forehead wildly.

He had already found out where the rations were, and that there were 10,000 troops guarding them, and even if they sent 20,000 men, it would be difficult for them to succeed.

Cheng Yu said: "My lord, you can only take risks, in a few steps. ”

"The first, the water attack, the second fire attack, carried out at the same time, the sound of the east and the west, the battle against the water..."

Cheng Yu and Guo Jia explained the plan to Cao Cao in detail.

Cao Cao thought carefully.

Finally, Cao Cao asked: "Fengxiao, how sure do you feel?" ”

"Three points."

Ten points is three points.

"Three points, it's not too small, and you have to take a risk."

The three points are low, at least there is still a chance.

If you don't take the risk and keep waiting, the result will be destruction.

At this time, Xun Yu in the rear has been extinguishing fires, and many rebellions, although small in scale, have a great impact.

Cao Cao said: "Then start the action." ”

Start planning, no matter how hard it is.

When Cao Cao began to prepare, Zhang Ming also simulated it over and over again, and then asked the soldiers to collect the situation within a range of dozens of miles on the battlefield.

After collecting the surroundings, Zhang Ming ordered to expand the scope and continue to collect more information.

Constantly synthesizing the news and calculating it, no matter how Zhang Ming calculates, Cao Cao has no chance of winning.

"Cao Cao, Cao Cao, Lao Tzu is really heartbroken for your win or loss."

"No matter what method you use, it's very difficult, it seems that Lao Tzu has to find a way to help you."

Zhang Ming is worried, Cao Cao can't collapse like this.

Once Cao Cao collapses, he will be under great pressure.

Therefore, Zhang Ming has to prepare.

However, now Zhang Ming can't help it.

Two days later, the scout arrived.

"My lord, Cao Cao sent someone to a hidden place upstream, cut off the flow of water, and prepared to flood it."

"Quick, mark the place right away."

Zhang Ming asked the soldiers to mark the place.

"This place..."

Zhang Ming was speechless, this place was more than ten miles away, even if he could store as much water as he could, he might not be able to drown his knees at that time.

Zhang Ming did not tell Yuan Shao about the situation.

However, Zhang Ming estimated that this should be Cao Cao's trick.

If there is enough water stored more than ten miles away, it can indeed flood them, but from the analysis of the terrain, it can't store much water, and it can't do anything to them when it washes down.

In this way, Zhang Ming judged that Cao Cao was using a blinding method.

Don't be in a hurry to tell Yuan Shao them now, wait for Cao Cao and their plan to succeed.

Continuing Cao Cao's actions, there must be other actions.

Zhang Ming made people pay close attention to Cao Cao's actions.

Four days later, the upstream interception has been almost done, the water has been stored, just wait for a little more water to burst.

Zhang Ming sent people to observe the water level, and Cao Cao made the embankment not very high, and they couldn't get much in just four days.

Zhang Ming estimated that in two days, they should act.

When Zhang Ming was researching, he suddenly had a whim and thought of a way to help Cao Cao.

Zhang Ming exchanged a large amount of gasoline and put it in the barracks.

The barrel of gasoline is filled with the words flammable and explosive, "Be careful", etc.

Stored separately and put a lot.

After another two days, the water flow here has decreased significantly, and no matter how stupid Yuan Jun is, he will find out.

In fact, Cao Cao and the others have not been discovered by Yuan Shao until now, and Zhang Ming sent a large number of scouts to help Cao Cao cover.

Actually, Cao Cao's original intention was to let Yuan Shao and them find out, but Zhang Ming didn't want Yuan Shao to take the initiative to find out.

On this day, Zhang Ming went to find Yan Liang.

"General Yan, my soldiers have discovered that the Cao army is impounding water upstream, and is preparing to flood us."

Yan Liang was shocked and hurriedly asked about the situation.

"General Yan, don't worry, my soldiers have carefully checked, even if the upstream embankment bursts, we are only flooded here, and the people are still fine."

"That's not going to work, at least our offense will be affected."

Zhang Ming smiled and said: "Why don't we set up an ambush, and when Cao's army comes to attack, we will destroy his army and then abandon the barracks." ”

"It is completely cost-effective to exchange an empty barracks for thousands or even more troops of the Cao army."

Yan Liang hurriedly asked for a detailed plan.

"Now, we have to act like we don't know anything and don't do anything to respond."

"Wait for the Cao army to release the water, we will pretend to be shocked, you will abandon the barracks, flee in a hurry, wait for the Cao army to chase after you, and then lead the army to kill from the rear."

"After the elimination of this army, the reinforcements of the Cao army are almost here, and we directly abandon the barracks and cannot return to the original barracks, because the Cao army may also use this design to set up an ambush in our barracks."

Yan Liang nodded hurriedly, this plan is indeed feasible.

Zhang Ming said again: "We only need to bring two days' rations and go downstream, we can cross the river directly, I calculate, Cao Jun's release of water can only last for two hours, even if Cao Jun chases and kills, we practice and fight with him, even if we fight the army, it is also cost-effective." ”

Cao Jun wants to fight their 30,000 troops, even if they are not prepared, they will have to pay a price of 20,000, and then their large camp will be in danger.