Xu Yi returned from Shibao City and went straight to the injury camp.

This made Li Wei and Cui Gui somewhat disappointed, and fortunately, at least nothing happened.

I guess the child didn't think of any solution.

It’s this stone castle city…~ah, that’s it.

Where is Xu Yi? His mind was just thinking about the sound of the sound of the sound, which was shocking. If you suppress it first and then raise it, you can also show your awesomeness.

There are ways, but you need to give a suitable time to show off.

Xu Yi doesn’t know any thumb-measuring algorithm, he really doesn’t know. I have heard of it, but I can’t play it.

According to the novels Xu Yi has read, all time travelers are all talented when they come here and know everything.

That's purely for fun, Xu Yizhen can't do it.

But he doesn't need accurate values, he just needs roughly, enough.

Xu Yi is a science student. Being able to take the college entrance exam means that he is still acceptable, and some formulas and calculations are also sloppy.

He doesn't need precise strikes, he just needs a rough range.

I guess, the angle of looking up, how many steps can Guo Ziyi talk about, where can the Tubo people attack, how much can they throw the catapult function, how far can they go...~

Xu Yi wrote a bunch of numbers and unified the unit... The calculation formula mainly needs to be unified with the standard units used in reality.

It is very complicated and complicated, so Xu Yi became hysterical again.

Xu Qing ran to the coach's tent to find someone again.

Xu Yi had been playing for a day and was squatting on the ground. His camp wrote dense numbers and Arabic numerals.

Xu Qing didn't know him, thinking that the head of the family was in a mess.

Why did you get such a head of family?

Indeed, Xu Yi was hysterical and he stuffed himself into a dead end and could not get out at all.

Since it does not require accurate strikes or accuracy, why do you need to calculate?

There are still a bunch of trigonometric function formulas, but I don’t remember clearly.

Just now I have finished counting, but when I get to the end, a paradox actually appears.

Pushing forward from behind, the difference between the number in front and the number you estimated is too big, and the two have nothing to do with each other.

Xu Yi was competing. He was originally planning to make a big splash, so how could he give up?

Therefore, staying up late, even staying up late must be done. To figure it out, calculate the exact value.

That's it. People often have this kind of time when they are stubborn and compete with themselves.

"Brother Yi..."

"Don't move..."

Cui Gui and Li Wei really care about Xu Yi. Xu Qing arrived as soon as he called out and brought a group of soldiers.

Now, the handsome tent has not stopped for a day and is always discussing how to take down the stone castle city.

I came here, but when I arrived at the door, Xu Yi called me to stop.

There is no way, the ground in Xu Yi’s barracks is full of numbers, which are calculation formulas.

"Brother Yi, what's wrong with you?"

"Jie Shuai, Cui Changshi, kid calculates how to attack Shibao City in fire."

"Fire Attack? The stone castle city is surrounded by rocks, and the weeds are low and should not be ignited. Even if it is ignited, it will be extinguished when the wind blows."

Li Wei has thought about it, even Guo Ziyi has thought about it, how could Li Wei not have thought about it?

Cui Gui also felt that Xu Yi was a little childish.

Guo Ziyi was a little embarrassed, as if he was just saying this to Xu Chanjun casually... I didn't expect him to take it seriously.

"What if I use stone paint?"

Oil does not seem to be uncommon in the northwest. Although Xu Yi doesn't remember any large oil fields in this place in later generations, Xu Yi has heard of the thing of stone paint more than once.

"Stone paint? Xu Chanjun, the stone paint can indeed be ignited, and it does burn more than weeds and is poisonous."

"However, after the stone paint is lit, the fire is not big, and it is not even as good as the weeds. Now that spring is coming, the wind is coming every day. As long as there is a gust of wind, the fire of the stone paint will be extinguished."

Guo Ziyi was not qualified to speak at first, but maybe she felt guilty, and she caused Xu Shenjun to be hysterical.

Just a few more words.

"What if I could make the stone paint easy to ignite? It's really not difficult, I'm calculating how I can surround the entire Stone Castle City."

"As long as you can ignite the stone paint around the stone castle city, the boy thought that the Tubo people could destroy it without a single soldier!"

I've been busy for so long, isn't it just waiting for this opportunity to show off?

What Xu Yi said is that his voice during the voice change period has reduced his voice.

"really?"

Well, Xu Yi suddenly couldn't understand what Li Wei really was. He could really destroy the Tubo people, or did he really not need a soldier, or maybe it could really make the stone paint burn easily, it should be the latter.

"You are willing to issue a military order. As long as the Jieshou has enough stone paint, you can calculate the appropriate delivery range and take down the Shibao City."

Xu Yi came casually. He often heard people say military orders, let’s establish one, what’s the point!

He knew that there were no military orders in the army of Dasheng Dynasty. As for when will the statement of this military order be... Those who are willing to study can try it.

"Xu joined the army and did not have to calculate the scope. The army attacked Shibao City, and the land of Shibao City successfully hit several times..."

Since it was military affairs, Li Wei also called Xu to join the army seriously.

It's different, this is what the great general of this era thinks. Xu Yi doesn't think so.

If you still rely on making up for your life, how could you come up with Xu Yi's magic trick first?

We are different, everyone has different experiences...

Cui Gui kept winking. This child was too reckless, how could he say such things casually? This was in front of many generals, not him, Cui Gui and Li Wei.

King Xin'an was already forced to death by the Stone Castle City. If anyone had any, he would be willing to give it a try even if there was a little way to take it down.

At this time, Li Wei was a handsome man, not your Uncle Li of Xu Yi.

But this situation is hard to change. Look at the generals who want to pounce over, and look at Li Wei's excitement... Brother Yi, you are so crazy!

As a general, no one wants his subordinates to die, but in the face of the saint's forced order, no one really dares to disobey the determination of the coach.

At this time, Xu Chanjun jumped out... and rescued nearly two thousand soldiers. This was a great contribution. Even if something went wrong, maybe there would be no problem, right?

"Jie Shuai, the boy doesn't need to approach the stone castle city with one arrow. He needs to surround the entire stone castle city with stone paint......"

Xu Yi had no way to explain these explanations, once the fire started, he would instantly drain the oxygen from Shibao City, and they didn't understand it even after saying that.

Why do you have to see blood when killing people? Isn’t it delicious to watch the Tubo people suffocate to death?

Maybe it's really not fragrant, but it may smell bad. Maybe the Tubo people in Shibao City will become barbecue... It's disgusting to think about it.

Li Wei seemed to be a little calmer and looked at Xu Yi solemnly, not telling that this kid is abnormal.

"Xu Chanjun, what do you need?"

"Stone paint, a lot of stone paint, jars, jars for stone paint, and the rest is a catapult."

"Also, it's better to have some kind of reliable craftsmen, just forget it if you don't."

After Xu Yi said this, even Cui Gui seemed to be relieved, especially Xu Yi said: A reliable craftsman is that Xu Yi might have something new.
Chapter completed!