According to relevant data, on February 8, 20021,12, Xi' an closed all mahjong parlors, chess rooms, tea chess clubs, hotels, tea shows and cafes in the city, stopped providing mahjong business, and banned chess rooms, game halls and other entertainment places.

Chang 'an, referred to as Gao for short, was called Chang 'an and Haojing in ancient times. It is the capital of Shaanxi Province, a sub-provincial city, a megacity, the core city of Guanzhong Plain urban agglomeration, and an important central city in western China approved by the State Council. Rich in water resources, it has the reputation of eight waters around Chang 'an since ancient times. It is the starting point of the ancient Silk Road. It has unique cultural tourism resources, including six world cultural heritages, such as Terracotta Warriors, Wild Goose Pagoda and Wild Plant Resources.