The competition for food between two tigers took place in the late Eastern Han Dynasty. The beauty of it is that it solves the problem from the origin of things in a seemingly distant way by means of reverse thinking, thus achieving a magical effect of winning.

The story of two tigers fighting for food:

To avenge his father's death, Cao Cao led an army against Tao Qian. Kong Rong introduced Liu Bei's assistance. At this time, Lu Bu attacked Yanzhou of Cao Cao, and Cao Cao returned to Li and Xuzhou was spared.

Before Tao Qian died, he entrusted Xuzhou to Liu Bei, and Liu Bei led Xuzhou as a shepherd. After being defeated by Cao Cao, Lu Bu came to take refuge in Liu Bei. Lu Bu temporarily occupied Xiaopei, not far from Xuzhou, and Liu Bei occupied Xuzhou. Xiaopei is the place where Liu Bei collects grain.

Cao Cao wanted to destroy Liu Bei and Lu Bu, and sent troops to attack Xuzhou. Yu Xun is the chief counselor under Cao Cao's account. He provided Cao Cao with a plan to drive away wolves and wrote a letter to Liu Bei asking him to kill Lu Bu. Yu Xun dedicated it to Cao Cao.

Chu Xu was straightforward. He wanted to raise 50,000 troops to kill Liu Bei and Lu Bu. Yu Xun said with a smile, "The general is brave, so he is brave. He doesn't know how to use his strategy. There is a plan to teach two people to kill each other. "

Cao Cao quickly asked what the plan was, and replied: Two tigers compete for food. This score is divided into two steps. The first step was to canonize Liu Bei as Xuzhou shepherd in the name of Emperor Xian of Han Dynasty, and the second step was to secretly order Liu Bei to kill Lu Bu. In this case, either Liu Bei killed Lu Bu or Lu Bu killed Liu Bei, so-called two tigers compete. Cao Cao quickly complied.