The Tianyuan (Chinese: 天元; pinyin: Tiānyuán) is a Go competition in China organized by the Chinese Weiqi Association.
The word tiānyuán literally means the center or origin of heaven, and is the center point on a Go board; the name is similar to the Japanese Tengen and Korean Chunwon.
The Tianyuan competition is sponsored by the Zhongguo Qiyuan, New People's Evening News, and New People's Weiqi Monthly Magazine.
It consists of a preliminary tournament in which 32 players compete against one another to determine the challenger to the previous year's winner.
The preliminary is a single-elimination format, and the title match is decided in a best-of-three.