Tian Feng was the smartest top counselor around Yuan Shao at the end of the Eastern Han Dynasty, and his official position was in Jizhou. Frank personality, repeatedly advised Yuan Shao but was not adopted. After the battle of Guandu, he was killed by Yuan Shao.

Tian Feng's classic plan is as follows:

1. On the eve of the battle of Guandu, Liu Bei betrayed Cao Cao, attacked and killed Che Zhou, the secretariat of Xuzhou, and occupied Pei County. Cao Cao was furious and personally led the troops to conquer Liu Bei. Tian Feng advised Yuan Shao: Cao Cao is your biggest rival for the world. At this time, he is attacking Liu Bei. Now, you can mobilize your troops to attack the rear of Cao Cao, and you will surely succeed. The army is moving all the time, which is a once-in-a-lifetime opportunity. Because Yuan Shao's son was ill at that time, Tian Feng's offensive strategy was not adopted.

Tian Feng sighed disappointedly: It's a pity that the great event has passed, but such a good opportunity was missed because the child was ill. Yuan Shao was very angry after hearing this, and alienated Tian Feng from now on. Looking back now, it was really a rare opportunity. As the saying goes, Yuan Shao was in the right place at that time. If Tian Feng's strategy is adopted, Cao Cao estimates that it will be difficult to have a chance to compete in the Central Plains in the future.

Second, less than a month after Cao Cao attacked Liu Bei, Liu Bei was defeated and went to Yuan Shao through the tunnel. Yuan Shao was overjoyed, warmly received Liu Bei and sent troops to Xu County. Tian Feng once again advised Yuan Shao: The great opportunity ahead has been lost, and the time has been lost. At present, Cao Cao's morale is greatly boosted. If we send troops again at this time, we will lose peace. Moreover, Cao Cao is good at fighting, and Xu is no longer empty. If he goes to attack, Cao Cao will wait and wait, and the geographical position is not dominant, and the chance of winning is very small. Therefore, at present, with the consolidation of the Yellow River in the mountains, the general has soldiers from four continents, outreach heroes, and harassing the south of the Yellow River inside and outside, making the enemy exhausted. In less than three years, we can defeat the enemy. But Yuan Shao didn't listen, and Tian Feng tried to dissuade him. Tian Feng went to prison in the name of demoralizing the army.

And made a great contribution to the south. As a result, Cao Cao was defeated and returned, and the army was defeated along the way. The soldiers beat their chests and feet: if Tian Feng were here, he wouldn't be here. When everyone thought that Yuan Shao would definitely use Tian Feng again this time, Tian Feng said: If Yuan Gong wins, I still have a chance to live. If I lose this time, I must not tolerate it. Sure enough, Yuan Shao became suspicious of Tian Feng and killed Tian Feng when he came back. Later, Cao Cao commented on Tian Feng: I don't know how to use the field! Kong Rong also commented on Tian Feng: Tian Feng and Xu You, smart people, also worked for them.