1, the first northern expedition, the old Zhuge Sima Yi had to win the street pavilion, so he sent Ma Su to guard the street pavilion, but Ma Su easily lost the street pavilion, and Zhuge had to retreat.

2. In the second Northern Expedition, Zhuge Liang sent Jiang Wei to surrender, and Cao Jun was defeated. Just when all the soldiers thought he would go all out to pursue victory, he found that he didn't have enough food and grass and had to retreat!

In the third Northern Expedition, Zhuge Liang defeated Sima Yi with one move, but suddenly he heard someone report that Zhang Bao was dead, so he burst into tears, vomited blood and fainted to the ground, so he fell ill and was bedridden, so the Shu army had to return to Hanzhong.

4. Zhuge Liang put up a gossip array and severely attacked Sima Yi, but Sima Yi bribed the grain and grass officer of the Shu army to go back to Chengdu for a walk, saying that Kong Ming would usurp the throne sooner or later. Frightened, he ordered Zhuge Liang to return to Li, so he had to retreat!

In the fifth Northern Expedition, Zhuge Liang killed Sima Yi with a stratagem. Suddenly, Li Yan of Yong 'an reported that Wei had made peace and wanted to jointly attack Zhuge Liang in Shu, but unexpectedly, Li Yan made up false news to deceive Zhuge Liang for fear that rations could not be bought.

6. In the sixth Northern Expedition, Zhuge Liang was always better than Sima Yi. Sima Yi did not dare to engage in war and could not keep it. Zhuge Liang sent people to tease Sima Yi with women's clothes, but Sima Yi was not provoked. But learned from the people sent that Zhuge Liang was seriously ill and concluded that Zhuge Liang was dying. . . . . Then I retreated!

Zhuge Liang was shrewd and cautious all his life, but he was very ordinary in employing people!