First of all, we have to figure out a problem. Should Liu Bang be killed at the Hongmen banquet? Because daring to kill and killing are two completely different views. From the perspective of Xiang Yu's "clique", Liu Bang should have been killed. Everyone in Xiang Yu's "clique" is in favor of killing Liu Bang, especially Fan Zeng, an old counselor, who has been very concerned about Liu Bang for a long time. He really wants to kill Liu Bang, and Liu Bang should be killed. There is no doubt about it. Then, from Xiang Yu's personal point of view, rather than standing in Xiang Yu's "group", does Xiang Yu think that Liu Bang should be killed? In fact, Xiang Yu is not a simpleton. He also knew that Liu Bang should be killed. As long as Liu Bang was killed, Xiang Yu failed a very powerful opponent. But killing and daring to kill are two different things, so the next question is, is it appropriate to kill Liu Bang at the Hongmen banquet?
From Fan Zeng's point of view, Fan Zeng certainly thought that Liu Bang should be killed at the Hongmen Banquet, and it was an excellent opportunity to kill Liu Bang at the Hongmen Banquet. Fan Zeng's idea is very accurate, and Liu Bang's going to the Hongmen Banquet is a last resort. Once Liu Bang went to the Hongmen banquet, he knew what kind of malice he was in and let him escape, so it was difficult for Xiang Yu to kill Liu Bang again. Therefore, it is easy to kill Liu Bang at the Hongmen Banquet, and it is a once-in-a-lifetime opportunity, because everyone at the Hongmen Banquet is based on Xiang Yu. But I don't think so. Xiang Yu especially wanted to kill Liu Bang, but Xiang Yu's brain and thoughts deviated from the accurate judgment. He wanted to kill Liu Bang, but he didn't dare. That's because of his bad judgment. If he kills Liu Bang at this time, he may provoke his ministers to attack himself.
At the Hongmen banquet, whether Liu Bang or Fan Kuai, their confession means that Liu Bang and Xiang Yu agree who is the best in Guanzhong first, and then they will be king. In the end, Liu Bang entered Guanzhong, but instead of being king, he gave the opportunity to be king to the overlord of Chu. And the two are still sworn brothers. Now Xiang Yu wants to kill Liu Bang. Isn't this a big blow? Xiang Yu was frightened by these words. He was afraid that all the kings in the world would accuse Liu Bang of being unkind and unjust and turn against him together. It can be seen that Xiang Yu is an easily confused person. Once the invincible overlord of Chu is confused, it is impossible for the "Eight Horses" to return. This is one of the biggest problems of this god of war.
As a general, he is not smart enough to be easily confused. If he can understand his shortcomings and listen to good words, he will turn the corner. For example, Liu Bang, whose shortcomings are easily induced by color, is also very good at discovering his own shortcomings, listening to good words and correcting them quickly.
In fact, if Xiang Yu killed Liu Bang, the consequences would not be so serious, but Xiang Yu's "determination" was so poor that he never listened to Fan Zeng.