Zhuge Liang carried out an empty plan to let people sweep the floor in front of the city gate. When the enemy saw it, they hurried away. Why?

Zhuge Liang, who was loyal to Shu Han all his life, sometimes miscalculated. If this empty plan, coupled with sweeping the floor in front of the city gate, makes the enemy retreat hastily, does the enemy general Sima Yi understand what Zhuge Liang said to him? Sweep the snow in front of the door? . When everyone didn't understand the reason, only Sima Yi knew that Zhuge Liang told him to protect himself, so he had a false move to repel the enemy. Let's talk about it in detail, what is going on.

Speaking of empty plans, we should start with Masu. Before he died, Liu Bei told Zhuge Liang to be careful of Ma Su. Although Zhuge Liang nodded repeatedly at that time, Zhuge Liang seemed to forget Liu Bei's words afterwards. Jieting defended Zhuge Liang to send Ma Su, while Ma Su was just an armchair strategist, which led to the fall of Jieting. Sima Yi, who was guarding the street pavilion, directly led150,000 troops to attack Xishu City.

Zhuge Liang was indeed in Xicheng, which was also the command center of Shu. Zhuge Liang saw that Sima Yi led an army to attack, but there was no strong army in the city. Seeing that Zhuge Liang was going to die at the hands of Sima Yi, Sima Yi, who was calm, ordered several people to sweep the floor in front of the wide-open city gate, while he was sitting on the gate upstairs, playing the violin leisurely. When everyone was puzzled, Sima Yi ordered the soldiers to withdraw.

Later, people realized that Zhuge Liang was actually persuading Sima Yi to protect himself. As we all know, Sima Yi has great prestige in Cao Wei's army. Sima Yi was very dangerous when he was highly respected. After all, Sima Yi was dismissed from office before, and was later reused because it was difficult to attack Shu. If Zhuge Liang is killed by him this time, Shu will be unable to fight back, and Sima Yi is likely to be disposed of. After all, he has solved Wei's biggest enemy. That's why Sima Yi withdrew his troops to protect himself.