Gu Shuiru (顾水如)
Gu Shuiru (顾水如 1891-1971) was the first Chinese player to study in Japan.
Gu was the top player in China from about 1930 to 1950. Nihon Ki-in 4 dan. Gu took only two people as his students: Go Seigen and thirty years later Chen Zude.