In the movie The Hongmen Banquet, it is said that Sean and Fan Zeng played tricks on each other in the process of playing chess. Please read it. I can't understand it.

After the game, Sean lost the game. Xiang Yu wanted Liu Bang to kill Sean, but Liu Bang was about to raise his sword and was stopped by Xiang Yu. Sean came to this step, so he played this scene with Liu Bang. So Sean seems to have parted ways with Liu Bang, but actually stayed with Xiang Yu to provoke the relationship between Fan Zeng and Xiang Yu. Later, the plan really worked, and Xiang Yu drove Fan Zeng away. Before he left, Fan Zeng left a trick for Xiang Yu.

The camera turned to Xiang Yu, and both Yu Ji and Xiang Yu died. Liu Bang found something fishy, which probably means that people around Liu Bang are meticulous or have the intention to replace Liu Bang. Liu Bang finally killed Han Xin and others who were farming with him.

In fact, all this was doomed when playing chess. Sean said that Fan Zeng was three times more resourceful than he was, and he knew divination. How could he not see through Sean's double spy? But Xiang Yu was caught in it and didn't know it. So, Fan Zeng had to quietly set up a game and played a lose-lose game.