The 1st Igo Masters Cup began on 24 February and ended on 23 July 2011. Eleven players participated: Kobayashi Koichi ( Honorary Kisei, Meijin, and Gosei), Kudo Norio ( Tengen 1997, Oza 1977), Rin Kaiho (Honorary Tengen), Kataoka Satoshi (Tengen 1982, 1983), Hane Yasumasa (Oza 1990), Ishida Yoshio ( 24th Honinbo), Takemiya Masaki (Meijin, Honinbo, and Judan), Cho Chikun (25th Honinbo, Honorary Meijin), O Rissei (Kisei, Judan, and Oza), Kobayashi Satoru (Kisei, Gosei 1995), Otake Hideo (Honorary Gosei). [1]
Kobayashi Koichi, Ishida Yoshio, Takemiya Masaki, Cho Chikun, and Otake Hideo were given first round byes. [2]
Quarter-finals | Semi-finals | Final | ||||||||
24 March | ||||||||||
Kobayashi Koichi | 1 | |||||||||
25 June | ||||||||||
Rin Kaiho | 0 | |||||||||
Kobayashi Koichi | 1 | |||||||||
24 March | ||||||||||
Ishida Yoshio | 0 | |||||||||
Kataoka Satoshi | 0 | |||||||||
Ishida Yoshio | 1 | |||||||||
Kobayashi Koichi | 0 | |||||||||
31 March | ||||||||||
Cho Chikun | 1 | |||||||||
Takemiya Masaki | 0 | |||||||||
25 June | ||||||||||
Cho Chikun | 1 | |||||||||
Cho Chikun | 1 | |||||||||
21 April | ||||||||||
Kobayashi Satoru | 0 | |||||||||
Kobayashi Satoru | 1 | |||||||||
Otake Hideo | 0 | |||||||||