Tianyuan (Chinese: 天元; Pinyin: Tiān Yuán), literally meaning center or origin of heaven, is the center point on a Go board, i.e., tengen. It is also the name of a Go competition in China, which is the equivalent to the Nihon Ki-in's Tengen in Japan, and the Hanguk Kiwon's Chunwon. The winners of the Tianyuan and the Chunwon go on to play each other, in the annual China-Korea Tengen competition.
Tianyuan competition is sponsored by the Zhongguo Qiyuan, New People's Evening News and New People's Weiqi Monthly Magazine. The preliminaries is a direct knockout while the final is a best of three. The komi is 7.5 points. The winner's purse is 150,000 CY ($24,000).
| Year | Winner | Score | Runner-up |
|---|---|---|---|
| 1987 | Ma Xiaochun | 2-1 | Nie Weiping |
| 1988 | Liu Xiaoguang | 3-2 | Ma Xiaochun |
| 1989 | Liu Xiaoguang | 3-2 | Jiang Zhujiu |
| 1990 | Liu Xiaoguang | 3-2 | Qian Yuping |
| 1991 | Nie Weiping | 3-0 | Liu Xiaoguang |
| 1992 | Nie Weiping | 3-1 | Ma Xiaochun |
| 1993 | Liu Xiaoguang | 3-1 | Nie Weiping |
| 1994 | Ma Xiaochun | 3-0 | Liu Xiaoguang |
| 1995 | Ma Xiaochun | 3-1 | Nie Weiping |
| 1996 | Ma Xiaochun | 3-1 | Liu Xiaoguang |
| 1997 | Chang Hao | 3-1 | Ma Xiaochun |
| 1998 | Chang Hao | 3-2 | Wang Lei (Go player) |
| 1999 | Chang Hao | 3-1 | Liu Xiaoguang |
| 2000 | Chang Hao | 3-1 | Dong Yan |
| 2001 | Chang Hao | 3-0 | Ding Wei |
| 2002 | Huang Yizhong | 2-0 | Chang Hao |
| 2003 | Gu Li | 2-1 | Huang Yizhong |
| 2004 | Gu Li | 2-0 | Xie He |
| 2005 | Gu Li | 2-1 | Zhou Heyang |
| 2006 | Gu Li | 2-1 | Zhou Ruiyang |
| 2007 | Gu Li | 2-1 | Liu Shizhen |
| 2008 | Gu Li | 2-1 | Zhou Heyang |
| 2009 | Chen Yaoye | 2-0 | Gu Li |
| 2010 | Chen Yaoye | 2-1 | Gu Li |
| 2011 | Chen Yaoye | 2-0 | Zhou Hexi |
| 2012 | Chen Yaoye | 2-0 | Zhou Hexi |
| 2013 | Chen Yaoye | 2-0 | Gu Lingyi |