First, the first open plan killed three scholars with two peaches.

The first plot took place in the Spring and Autumn Period, when there were three soldiers with high martial arts in Qi Jinggong. They can recruit good fighters and kill the enemy bravely, without fear of sacrifice or bloodshed, just like Liu Bei, Guan Yu and Zhang Fei in the Three Kingdoms period.

The three of them also became sworn brothers with different surnames. Because the three brothers were very successful, Qi Jinggong was very scared, so he came up with an open plan to deal with them. Qi Jinggong invited three generals to his camp and gave them three big peaches. And told them that these two big peaches were obtained from envoys' tribute and should be rewarded to the generals who made the highest and strongest contribution.

Now Qi Jinggong has given these two peaches to the three of them and asked them to distribute them according to the credit. The three generals knew what Qi Jinggong was thinking, but in order to show that they had the highest honor, they all wanted these two peaches.

Three brothers, big brother and second brother all got peaches one after another. When it was Tanoko's turn, he had no peaches to take, so he died of shame and anger. After Guyezi's death, the other two brothers knew Qi Jinggong's thoughts, and felt that there was no point in living, so they committed suicide.

Second, the second Mou Yang's favor order of Emperor Wu of Han Dynasty.

When the new emperor comes to power, he will carry out his own laws to show his majesty. As the saying goes, after the new official took office, Emperor Wu of the Han Dynasty succeeded to the throne. In order to further consolidate his imperial power and make the people obey his control, Dong Zhongshu's suggestion led to the implementation of the favor decree.

In feudal society, leaders were generally established rather than saints, but this situation changed after the decree of Emperor Wu of the Han Dynasty came out. The decree of favor refers to the fief originally inherited by the eldest son, and now it is divided up by the sons, which is the best for the royal family.

After the promulgation of the favor decree, Emperor Wu of the Han Dynasty was very relieved that all governors would check and balance their power, and the struggle of the royal family changed from competing for imperial power to containing each other, which was most beneficial to his throne.

In fact, those governors know that the promulgation of this policy is to check and balance their governors and to deal with the struggle within the royal family. However, they can't disobey, because they must carry out the decrees issued by the emperor. Emperor Wu skillfully used this open plan.

Third, the final public plan is to encircle Wei and save Zhao.

The last of the three great conspiracies in history is the idiom story of saving Zhao by besieging Wei. Because of the social unrest during the Warring States period, many monarchs wanted to expand their territory and their own territory. For this reason, the stronger the country, the weaker it will attack.

At that time, Wei's national strength was relatively strong and he wanted to further expand his territory, so he set out to attack Zhao. Zhao was helpless at this time. In desperation, he sent a cry for help to Qi, hoping that Qi could send troops to save Zhao. At that time, Qi was also a weak country, but it also wanted to save Zhao.

Because if Zhao perishes, he will be the next to perish. At that time, Qi's army was also very weak, so he racked his brains to come up with a way to lead troops to the capital of Wei. This strategy has really worked. Qi began to surround the capital of Wei, and when Wei's army was still fighting Zhao's army, their capital was surrounded.

So I had to give up attacking Zhao and withdraw my troops to save the capital. Wei also knew it might be a trick, but compared with Zhao and his own capital, they still chose to withdraw their troops and return home. This is a famous open plan in history. Wei knew it was a pit and had no choice but to go back to the city.