 Li Yuanji and Li Jiancheng were defeated.At that time, Li Yuanba was already dead, so Li Yuan had to send Li Shimin to stop Yuchi Gong.One evening, when Li Shimin and Cheng Yaojin (程咬金, or Cheng Zhijie 程知节, another warrior known for his three fighting tactics with an axe) were marching, they were ambushed by Yuchi Gong at a creek called Meiliang-Chuan (美良川).