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Xiang Yu disliked losing the race to Guanzhong. On the advice of Fan Zeng – his advisor – and Cao Wushang () – an informer from Liu's camp – Xiang Yu planned to hold a banquet in which to assassinate Liu. Xiang Yu was pursuaded by Xiang Bo, his uncle and a close friend of Zhang Liang, not to order the assassination during the banquet. Frustrated by the indecision, Fan Zeng ordered Xiang Zhuang, Xiang Yu's cousin, to perform and kill Liu during a sword dance, but this was stymied by Xiang Bo joining the dance and protecting Liu. Zhang Liang slipped away and summoned Fan Kuai, who arrived at the banquet in full armor and scolded Xiang Yu for the sinister plot. Embarrassed by Fan Kuai's accusation, Xiang Yu ordered the sword dance to stop and rewarded Fan Kuai for his bravery. Liu Bang escaped Xiang Yu's camp after pretending to go to the latrine, and then led his army westward. Xiang Yu then sacked Xianyang and burned the Epang Palace.