Hanba Erwang City is located in Xingyang, Zhengzhou, Henan Province. It is the place where Liu Bang and Xiang Yu faced off in the Qin and Han Dynasties. It has a history of over one thousand years. The Chu River Han Border is a historical testimony that is reflected on the game board of Chinese chess. Hanba Erwang City is renowned for its rich cultural background because of the Chu River Han Border. It has been designated a national key cultural relics protected unit.