Koyama Hideo
Keywords: People
(小山 秀雄, b.1951) Retired Nihon Ki-in pro, 5 dan in 1989. Retired in 2022 and promoted to 6 dan. Pupil of Kitani Minoru.
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(小山 秀雄, b.1951) Retired Nihon Ki-in pro, 5 dan in 1989. Retired in 2022 and promoted to 6 dan. Pupil of Kitani Minoru.