The first to laugh was naturally Yuan Shao.

But under the leadership of Yuan Shao, the soldiers of the Yuan army on the earth mountain also laughed, and the laughter was full of ridicule of Cao Cao.

Cao Cao's face was dark, he didn't expect Yuan Shao to be so disgusting, the key is that in this moment, it is not easy to break Yuan Jun's soil mountain, if he gives up Guandu, Yuan Shao will be able to enter Yingchuan.

This is not good for strategy, and it is also very unfavorable for Cao's side.

"Keep shooting."

"Every half an hour, shoot Cao Ying at random."

"Tell the people in the rear army to make more arrows, and the more there are, the better."

"I want Cao Cao to know what regret is!"

Seeing that the soldiers on Cao Cao's side were so embarrassed and fleeing everywhere, Yuan Shao's mood improved, and the anger of Wen Chouyan Liang's death was temporarily left behind by him, and finally regained his advantage, making him feel that it was not difficult to break Cao's camp.

With that, he walked down the dirt mountain.

Go back to the barracks and wait slowly for the results on the dirt mountain, and wait for the result of the collapse of the Cao army.

Cao Ying.

After Yuan Shao left, the soldiers of the Yuan army on the mountain pulled their bows and shot several times.

Shooting Cao Cao and them, they were indeed a little helpless, they could only put a large number of shields on the edge of the barracks, as long as they found that there were arrows coming down, they raised their shields to resist.

But Yuan Jun's shooting was very random, and no one knew when the next shooting would be, and there was no rule to follow.

Often when they reacted to resist, the arrows had already come, making them unable to defend themselves, and in the end, they raised their shields to defend at any time, and tossed the soldiers who were defending the guard so that they had no temper.

"What should I do?"

Cao Cao immediately gathered everyone and asked worriedly.

Cheng Yu asked: "How about we build a few greenhouses to block the arrows?" ”

"It's not a cure, it's only temporary."

Chen Zhou said, looked at Liu Ye next to him, and asked, "I think Ziyang is thoughtful, he seems to be full of confidence, is there a solution?" ”

Liu Ye came back to his senses, nodded and smiled: "Duzhi's observation is very strong, I may really have a way to cure it radically, so that Yuan Shao's soldiers will not dare to go up to that earth mountain again." ”

As soon as these words came out, everyone looked at Liu Ye at the same time.

Cao Cao hurriedly asked, "Zi Yang said quickly." ”

Liu Ye said: "I remembered that there is a kind of catapult, which can throw a boulder weighing up to one stone from a long distance and use it to smash Yuan Shao's dirt mountain, which is as easy as a hand!" If only the lord gave me enough craftsmen, I could build the first catapult in three days. ”

"Arrangement!"

Cao Cao decisively agreed.

Since Liu Ye said that there is a way, he will not hesitate at all, this is his personality charm.

Liu Ye received the order, led the craftsmen, and tossed to the rear of the camp.

It's just that in the next few days, Cao Ying still had to be harassed by Yuan's army, and those arrows shot down, which caught them off guard, and they could only raise their shields to defend as much as possible.

"Duzhi, what you said before, let the people in Yuan Shao's army rebel in advance, what should I do?"

Cao Cao looked outside, and the arrows shot down sporadically, he couldn't get angry, thinking that Yuan Shao must be good-looking.

gave Yuan Shao the most fatal blow, and vented fiercely, the breath he had been holding for the past few days.

"Do you remember Xu You?"

Chen Zhou saw that Cao Cao was eager to know, so he satisfied him and pushed Xu Yu's matter to happen in advance, anyway, this battle had to be finished in advance, and the longer it dragged on, the more unfavorable it would be to Cao Cao.

"Xu Ziyuan, of course I know."

Cao Cao nodded and said: "He and I are childhood playmates, and like Yuan Shao, we also met in childhood, and now I am giving advice in Yuan Shao's army, and Du Zhi said that it was this person who betrayed?" ”

"Yes!"

Chen Zhou talked to Cao Cao in detail about how to promote Xu You's plan to rebel.

After Cao Cao listened, his eyes lit up at first, and then he asked: "How sure is this plan of crossing?" ”

Chen Zhou said confidently: "If my plan is used properly, I am ninety percent sure!" ”

Ninety percent sure, it's basically no problem at all.

The reason why I would say ninety percent is a more modest statement.

Cao Cao understood Chen Zhou's modesty, and immediately called Cao Peng and Xia Houen over, and handed over the plan to them.

Before the camp, there are occasional sharp arrows.

Chen Zhou was not very interested in arrows, but he was deeply interested in Liu Ye's thunderbolt, told Cao Cao the plan, and went back to the rear of the barracks, only to see Liu Ye instructing those craftsmen to make an enhanced version of the trebuchet - the thunderbolt.

"Watayuki, is there anything you can guide us?"

Seeing Chen Zhou coming, Liu Ye said.

Chen Zhou shook his head and said, "I don't understand these things at all, and I still want to study with you!" ”

Liu Ye smiled: "It turns out that there are still things that Duzhi doesn't understand, but in fact, I don't understand either, I just saw it by chance, so I wrote it down." ”

Seen by chance?

Chen Zhou asked curiously, "Where did Ziyang see it?" ”

"I can't say this, I promised someone else."

Liu Ye laughed, pretending to be mysterious: "If I say it, it means that I have betrayed the trust of others, and I hope it is understandable." ”

Chen Zhou said: "I definitely understand, but I have a special idea. ”

"What thoughts?"

"I think Ziyang's catapult has to make a stronger elastic force to catapult a stone weighing one stone, right?"

"That's right!"

"I suddenly wondered, should I use this elasticity for other purposes?"

Chen Zhou looked at a bow next to him and said, "For example, make a bow." ”

Liu Ye shook his head and said: "The bow made in this way has a huge elastic force, but it must also be very large, who can pull it?" ”

He felt that Chen Zhou's conjecture was a bit fanciful and not feasible.

Chen Zhou said again: "Not necessarily! Ziyang's catapult can move, if we fix the bow on the car, not one person pulls the bow, but several people pull the bowstring at the same time, and then make a special arrow, so that the arrow is shot, the effect should be very shocking, right? ”

These words made Liu Ye ponder for a long time, and felt that Chen Zhou's idea was a little bolder, but it was not useless, maybe he could make a better weapon, and hurriedly said: "A few of you, come over to me and make another thing." ”

Next, Liu Ye ignored Chen Zhou, and busily commanded the craftsmen, catapults and the bow to do it together.

If it succeeds, it's a great credit.

Chen Zhou didn't bother, seeing that Liu Ye attached so much importance to it, he understood that the idea of a bed crossbow he proposed could be implemented.

——

Three days passed in the blink of an eye.

Cao Cao and the others appeared on the school field of the barracks, looked up at those dirt mountains, and happened to see that Yuan Shao's soldiers on the earth mountains were pulling their bows and sneaking attack, shooting their own soldiers a little embarrassed.

Although most of the arrows were blocked, Cao Cao was full of resentment when they were shot like this.

"Ziyang, what's wrong?"

Cao Cao asked expectantly.

Liu Ye waved his hand, and someone immediately pushed the catapult up.

"Back to the lord, okay, why don't you try it now?" Liu Ye said.

"Give it a try right away, I'll see how it goes."

Cao Cao said.

Liu Ye found two soldiers, lifted the stones, and prepared to throw.