Was Guan Yu's defeat in Maicheng calculated by people?

To say that the characters in the Three Kingdoms are the most successful, many people will say Sima Yi, because Sima Yi killed all the masters in the Three Kingdoms and finally took advantage of the fishermen. In fact, Sima Yi is nothing in front of Guan Yu. At this time, some people will think that Guan Yu will not be miserable every day, right? Guan Yu died miserably after losing his head in Maicheng, but he lived in everyone's heart. Finally, he was deified, and Guan Yu Temple was built everywhere. Speaking of Guan Yu's achievements in the Three Kingdoms period: Three Oaths in Taoyuan, Hua Xiong's warm wine chop, six generals' passing five passes and six generals' chopping, and seven armies' flooding, etc. Guan Yu's biggest mistake in his life was that he accidentally lost Jingzhou and finally lost Maicheng, which led to his beheading. Speaking of losing Maicheng, I wonder why Guan Yu lost Liu Bei from the ruins. Many people think Guan Yu lost Maicheng because he was too conceited, because Liu Bei was king in Hanzhong at that time, and the great cause of Shu was prosperous and peaceful. But no one can think the world is invincible. Guan Yu, the leader of the Five Tigers General Army, was defeated, and Guan Yu was also very conceited. He was invincible when he chopped Hua Xiong with warm wine, so Guan Yu's death was probably his own carelessness. Of course, some people think that Guan Yu's death is a conspiracy of Liu Bei. Guan Yu led a small team to raid after losing to Maicheng, but was captured alive when losing to Lin Ju, who was only 20 miles away from Yizhou. However, Liu Bei's reinforcements didn't come, which eventually led to the death of Wu Yu and his son Guan Ping at the hands of Ma Zhong. Why didn't Guan Yu save Guan Yu when he was twenty kilometers away from Liu Bei? Some people think that Liu Bei is not a gentleman, but a treacherous villain. Liu Bei was afraid that Guan Yu would threaten his son's rule, so in order to save Guan Yu from genocide, another possibility was that the alliance between Sun and Liu had not broken down, and Guan Yu's tragic death was the victim of Wei Shuwu's struggle. Although Liu Bei doesn't want Guan Yu to die, it's ok not to be a brother for the sake of the great cause in the future. After Guan Yu's death, Zhang Zhao made contributions to Sun Quan and gave Guan Yu's head to Cao Cao. Cao Cao knew what Sun Quan meant, but he still put Guan Yu's head with the body of thyme and buried it as a vassal. Later, Cao Cao said in front of Guan Yu's tomb, "Yun Chang, you are all right, but you have followed the wrong master in your life." Why not follow me! "

It was really because he looked down on other generals that his arrogance led to his failure, because the inconvenience of information transmission at that time made Liu Bei unable to know his situation at the first time.

The real reason for Guan Yu's failure in Maicheng was the fall of Liu Feng. Liu Feng is Liu Bei's adopted son and Guan Yu's way out in advance. Liu Feng was eccentric and timid to Guan Yu at the critical moment.

Because of Sun Quan's participation at that time. Guan Yu was outnumbered and lost Maicheng. Liu Bei didn't know this time.