Huarong Road released Cao Cao: Cao Cao Battle of Red Cliffs was defeated and fled Huarong Road. When Guan Yu was ambushed, Cao Cao Yun said, "Cao Cao was defeated and couldn't get here. I hope the general will pay attention to the past! " Guan Yu listened to Cao Cao's crying, and saw the soldiers in Cao Jun in a state of panic, crying and kneeling on the ground, which was even more unbearable. So he reined in, turned around and left, scattered all the troops in all directions, and let Cao Cao live.

Chicken rib command: Cao Cao sent troops to Hanzhong and was trapped at the boundary of the inclined valley. He was afraid of failure when he entered, and he was afraid of being laughed at when he left. Unable to advance or retreat, the soldiers demanded a password at night. Cao Cao casually replied: chicken ribs. When Yang Xiu heard this, he ordered to pack his bags. He said, "Chicken ribs, there is no meat to eat. It is a pity to throw them away. Isn't this our status quo? " It's no use here. Might as well retreat early. Cao Cao was furious and killed Yang Xiu in the name of disturbing the morale of the army.