Both pros and amateurs participated, but no amateurs reached the main tournament. There was one Russian amateur, and one American: Jung Ho Lim.
| 3rd IBM Hayago Open | ||||||
|---|---|---|---|---|---|---|
| Kudo Norio | Kudo Norio | Nie Weiping B+R 1990-06-23 |
Rin Kaiho B+17.5 1990-07-16 |
O Rissei B+0.5 1990-07-16 |
Kobayashi Satoru B+R 1990-09-08 |
Kobayashi Satoru B+1.5 1990-09-08 |
| Ishii Shinzo | ||||||
| Nie Weiping | Nie Weiping W+R 1990-06-23 |
|||||
| Tanimura Yoshiyuki | ||||||
| Oya Koichi | Doi Makoto | Rin Kaiho | ||||
| Doi Makoto | ||||||
| Rin Kaiho | Rin Kaiho W+15.5 1990-06-23 |
|||||
| Obuchi Morito | ||||||
| Sakai Takeshi | Sakai Takeshi | Ishida Akira | O Rissei | |||
| Ishigure Ikuro | ||||||
| Ishida Akira | Ishida Akira | |||||
| O Meien | ||||||
| O Rissei | O Rissei W+4.5 1990-06-23 |
O Rissei | ||||
| Takemiya Masaki | ||||||
| Awaji Shuzo | Awaji Shuzo | |||||
| Yuki Satoshi | ||||||
| Ryu Shikun | Ryu Shikun | Otake Hideo | Otake Hideo | Kobayashi Satoru W+5.5 1990-07-16 |
||
| Kanda Ei | ||||||
| Sasaki Tadashi | Otake Hideo | |||||
| Otake Hideo | ||||||
| Hikosaka Naoto | Goto Shungo | Goto Shungo | ||||
| Goto Shungo | ||||||
| Chin Kaei | Tei Meiko | |||||
| Tei Meiko | ||||||
| Yoda Norimoto | Yoda Norimoto | Yoda Norimoto | Kobayashi Satoru | |||
| Yamada Shiho | ||||||
| Imamura Toshiya | Imamura Toshiya | |||||
| Chang Su-yeong | ||||||
| Miyazawa Goro | Kobayashi Satoru | Kobayashi Satoru | ||||
| Kobayashi Satoru | ||||||
| Ushikubo Yoshitaka | Onda Yasuhiko | |||||
| Onda Yasuhiko | ||||||
| Iwata Tatsuaki | Ito Yoji | Kato Masao | Kato Masao | Ohira Shuzo B+R 1990-07-23 |
Ohira Shuzo B+R 1990-09-08 |
|
| Ito Yoji | ||||||
| Shinoda Hideyuki | Kato Masao | |||||
| Kato Masao | ||||||
| Tei Meiki | Oyama Kunio | Aoki Shinichi | ||||
| Oyama Kunio | ||||||
| Yamada Wakio | Aoki Shinichi | |||||
| Aoki Shinichi | ||||||
| Ohira Shuzo | Ohira Shuzo | Ohira Shuzo | Ohira Shuzo | |||
| Enda Hideki | ||||||
| Fujisawa Shuko | Hasegawa Sunao W+1.5 1990-06-23 |
|||||
| Hasegawa Sunao | ||||||
| Yamashiro Hiroshi | Yamashiro Hiroshi | Komatsu Hideki | ||||
| Honda Kunihisa | ||||||
| Komatsu Hideki | Komatsu Hideki W+R 1990-06-23 |
|||||
| Kim Tong-yeop | ||||||
| Kamimura Kunio | Kamimura Kunio | Hane Yasumasa | Hane Yasumasa W+R 1990-07-16 |
Ishida Yoshio B+R 1990-07-16 |
||
| Ogata Masaki | ||||||
| Kawamoto Noboru | Hane Yasumasa | |||||
| Hane Yasumasa | ||||||
| Ma Xiaochun | Ma Xiaochun B+R 1990-06-23 |
Ma Xiaochun W+R 1990-06-23 |
||||
| Hashimoto Shoji | ||||||
| Magari Reiki | Imamura Yoshiaki | |||||
| Imamura Yoshiaki | ||||||
| Ko Mosei | Ko Mosei | Ishida Yoshio | Ishida Yoshio W+R 1990-07-16 |
|||
| Nishimura Keiji | ||||||
| Nakaonoda Tomomi | Ishida Yoshio B+R 1990-06-23 |
|||||
| Ishida Yoshio | ||||||
| Kenmochi Jo | Sonoda Yuichi | Cho Chikun W+R 1990-06-23 |
||||
| Sonoda Yuichi | ||||||
| Cho Chikun | Cho Chikun W+R 1990-06-23 |
|||||
| Sanno Hirotaka | ||||||
| date | black | white | result | #mv | sgf |
|---|---|---|---|---|---|
| 1990-09-08 | Ishida Yoshio | O Rissei | W+2.5 | 227 | sgf |