At this time, the Great Wei Wulin.

The crafting of firecrackers and grenades is in full swing, but it is not something that can be made in a moment.

The current progress is still not optimistic.

I'm afraid that it will be difficult to make it in less than half a year.

During this time, Cao Cao was not idle.

However, it's not development, after all, it's not urgent now, Cao Cao simply found someone to play mahjong!

I have to say that the allure of this mahjong is still very high.

Since playing mahjong on Lin Chuan's side, Cao Cao has become addicted.

Not only Cao Cao, but also Xu Chu and Cheng Yu Jia Xu are also extremely addicted.

However, Xu Chu, Cheng Yu and Jia Xu were really busy and couldn't get together to play mahjong.

Now Cheng Yu is busy with farming, Jia Xu is guarding the alien race in Liaodong, and Xu Chu is training soldiers and horses in the military camp.

Only Cao Cao, this time is very leisurely.

Anyway, Cao Cao had already made a calculation, and before he studied the fire gun and grenades, he didn't consider the matter of the southern expedition.

Waiting for the food to ripen and be boring, mahjong is the only way to entertain.

What if no one fights? Teach directly!

Just after the grain was ripe, the famine was completely over, and Cao Zhi and Cao Pi had nothing to do at this time.

Cao Cao directly called the two to Wulin and played mahjong with Mrs. Bian.

Mahjong is relatively easy to get started, and the three of them quickly become addicted.

This is good, Cao Pi and Cao Zhi, who were originally not to deal with each other, unexpectedly eased their relationship a lot.

The reason is very simple, it is because of mahjong.

The news that the four of them were playing mahjong all day soon spread.

It didn't take long for the whole of Ulin to know about it.

This made everyone curious, especially Xun You and Xun Yu.

They never thought that the dignified prime minister would be addicted to this.

Cao Cao before, but he often went out with the army and couldn't sit down at all.

But how can this little thing have such magic?

Cao Cao is not shy about it, when someone comes to discuss the matter, he directly asks them to say on the side, and he deals with it while fighting.

Xun You and Xun Yu have a good memory, and they directly wrote down all the card types and imitated some of them.

But the two of them really don't understand the rules.

In desperation, the two cheekily came to Cao Cao for advice.

At this moment, Cheng Yu's mind turned and he said in a deep voice:

"Prime Minister, now that I am in Dawei, I am not short of food, but I am extremely short of money, and the minister has a way to make money."

Cao Cao couldn't help but raise his eyebrows slightly when he heard this:

"Oh? Let's hear it. ”

Cheng Yu said in a deep voice:

"During this time, the whole Ulin knew about the existence of this mahjong, and they all yearned for it, and they were extremely curious, so it was better for us to make mahjong directly and sell it to the people in need."

"In this case, although the effect is not much, it is also a small increase in income."

Cao Cao was overjoyed when he heard this, and brought Xun You and Xun Yu to discuss the matter together.

After some discussion, Cao Cao finally decided to make it!

To make mahjong directly popular throughout the land of Kyushu!

Now that the people are full of food and drink, and the farming is also vigorous, at this time, it is necessary to have some entertainment facilities.

What's more, this is still a good thing that can make profits for the country.

This mahjong can only be made of more wear-resistant materials, and it will definitely not work if it is made of stones.

Therefore, Cao Cao sent people to make mahjong with good sandalwood.

Of course, if you want to sell, you can't just use one material.

This upper middle is sandalwood.

For the higher ones, they use ivory directly.

And for ordinary people, you can use some ordinary wood to make it.

As for the method of mahjong, Cao Cao directly ordered the craftsman to write it on a blank piece of paper and distribute it everywhere.

Anyway, with Lin Chuan's help, now Cao Cao has also popularized papermaking, and this paper is simply a big handful.

This means of propagation was extremely efficient, and soon the whole of Ulin was rolling up a mahjong wind.

However, doing it too plainly will definitely not attract the favor of those big businessmen.

Cao Cao is not good at buying and selling.

Therefore, Cao Cao directly asked Cheng Yu to take out the poems that Lin Chuan hummed when he had something to do, as well as his own poems, and printed them on mahjong.

The exquisite workmanship and beautiful poems immediately attracted the attention of a large number of literati and merchants.

Mahjong soon became the most elegant sport in Ulin.

Ulin's restlessness directly made the people of other states and counties wait and see.

Everyone also tried to buy some, but once they got started, they couldn't stop.

Cao Cao also took this opportunity to directly open several mahjong parlors, which are similar to restaurants.

These methods were all told to Cao Cao by Cao Jie.

And Cao Jie mostly learned about it when he was chatting with Lin Chuan.

Under the influence of Lin Chuan, Cao Jie's thinking was closer to that of a modern person.

This business operation model is extremely suitable for Cao Cao at this time.

Therefore, Cao Cao suddenly made a lot of money.

But mahjong, although it is easy to get started, it is particularly difficult to master it.

However, the more people with bad hands are, the more addicted they are.

This mahjong parlor and the income from selling mahjong are definitely a lot of money.

This point directly surprised Cheng Yu, who had just raised the matter.

Unexpectedly, there is such a miraculous effect!

I just came up with an idea, but combined with Lin Chuan's thinking, I actually have such a great ability to collect money.

The mahjong turmoil not only swept Cao Cao's state and county.

This matter actually spread to the prefectures and counties under the command of Sun Quan and Liu Bei.

But the people they governed were far inferior to the people under Cao Cao, and they had less time to play.

However, there are still many businessmen who are willing to pay for a few pairs to see what kind of good things are.

This is good, mahjong continues to spread, and it has actually reached Liu Bei and Sun Quan.

But the two of them don't look like Cao Cao, they have too many things to do all day long, and they don't pay attention to it for a while.

But when they play a few games by chance, they find out that they are really addicted.

However, there were also many courtiers who saw it and hurriedly admonished them, which stopped Cao Cao and others from becoming addicted.

However, after such a small turmoil, Cao Cao had saved a lot of money on hand.

Although it is still not enough to use it, it is more than enough to invest in mining and smelting steel, as well as to make grenades and firearms.

Cao Cao also went to Ma Jun to see how the progress was now.

Fortunately, Ma Jun and others have a very high level and have overcome several difficulties in a row.

After all, such a delicate thing, and the principle is not very familiar to them, it is normal that it will take some time.

Finally, after more than three months of research, Ma Jun finally made a huge breakthrough!

The firebolt is not good yet, though.

But the grenade has already made a prototype prototype!

This is undoubtedly great news!