Cao Dayuan
Keywords: People
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曹大元
Cáo Dàyuán, Chinese professional, 9 dan in 1986. Born in Shanghai, 26 January 1962. Won the 4th World Amateur Go Championship in 1982. Turned professional in 1985.
http://www.gobase.org/information/players/?pp=Cao%20Dayuan (online replayable games)
http://en.wikipedia.org/wiki/Cao_Dayuan (lists tournament results)