Yan Liang
Yuan Shao's general Yan Liang crossed the Yellow River and besieged Cao Cao's fort at Boma. Heeding his advisor Xun You's advice, Cao Cao led a battalion toward Yan Ford as a feint to trick Yuan Shao into believing that Cao Cao would attack his camp on the other side of the river. Yuan Shao split off his troops from Liyang to counter Cao Cao's attack, leaving Yan Liang without any support at Boma. Cao Cao then struck eastward to lift the siege on Boma. In the ensuing battle, Yan Liang was killed by Guan Yu and Yuan Shao's army was routed.