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7th Ryusei title

Four times 24 players play a ladder. The winner of each ladder and the player with most wins proceed to the 8-player knockout tournament. Time is 30 secs/move, 10 times 1 minute. Komi is 5.5.

The four ladders

Group A

date black white result #mv sgf
1997-08-25 Kurotaki Masaki Kim Sujun W+R 166 sgf
1997-08-25 Mizokami Tomochika Kim Sujun W+10.5 254 sgf
1997-09-09 Kim Sujun Takao Shinji W+R 110 sgf
1997-09-09 Koyama Ryugo Takao Shinji W+R 176 sgf
1997-09-29 Yoshida Mika Takao Shinji W+R 210 sgf
1997-09-29 Tamaki Shinobu Takao Shinji W+R 180 sgf
1997-10-27 Nobuta Shigehito Takao Shinji B+8.5 284 sgf
1997-10-27 Yokoyama Koichi Nobuta Shigehito W+6.5 281 sgf
1997-11-10 Nobuta Shigehito Mimura Tomoyasu W+12.5 296 sgf
1997-11-10 Mimura Tomoyasu Ishida Atsushi W+0.5 286 sgf
1997-11-17 So Kofuku Ishida Atsushi B+R 215 sgf
1997-11-17 So Kofuku Nabeshima Akira B+R 177 sgf
1998-01-12 Onda Yasuhiko So Kofuku B+R 191 sgf
1998-01-12 Kanda Ei Onda Yasuhiko B+R 205 sgf
1998-02-03 Moriyama Naoki Kanda Ei W+3.5 306 sgf
1998-02-03 Komatsu Hideki Kanda Ei B+R 127 sgf
1998-02-23 Yamashiro Hiroshi Komatsu Hideki W+13.5 239 sgf
1998-02-23 Komatsu Hideki Ishida Akira B+R 167 sgf
1998-03-31 Komatsu Hideki Tsuchida Masamitsu W+2.5 279 sgf
1998-03-31 Kojima Takaho Tsuchida Masamitsu B+R 193 sgf
1998-04-28 Kojima Takaho Takemiya Masaki W+R 134 sgf
1998-04-28 Takemiya Masaki Ishida Yoshio B+0.5 252 sgf
1998-05-18 Takemiya Masaki Cho Chikun W+R 156 sgf

Winner: Cho Chikun
Most wins (4): Takao Shinji

Group B

date black white result #mv sgf
1997-08-22 Katsura Atsushi Cho U W+R 246 sgf
1997-08-22 Yamashita Keigo Cho U B+R 227 sgf
1997-09-08 Yamashita Keigo Yanaka Katsunori B+R 213 sgf
1997-09-08 Kenmochi Jo Yamashita Keigo W+R 158 sgf
1997-09-30 Yamashita Keigo Morikawa Masao B+R 115 sgf
1997-09-30 Sakai Maki Yamashita Keigo W+R 174 sgf
1997-10-28 Ono Nobuyuki Yamashita Keigo W+R 216 sgf
1997-10-28 Nakayama Noriyuki Yamashita Keigo W+R 162 sgf
1997-11-25 Yamashita Keigo Ogaki Yusaku B+R 185 sgf
1997-11-25 Yamashita Keigo Nakaonoda Tomomi B+R 151 sgf
1997-12-16 Tei Meiki Yamashita Keigo W+R 172 sgf
1997-12-16 Honma Akio Yamashita Keigo W+4.5 250 sgf
1998-02-02 Yamashita Keigo Cho Sonjin W+R 300 sgf
1998-02-02 Komatsu Fujio Cho Sonjin W+6.5 259 sgf
1998-02-16 Cho Sonjin Yuki Satoshi W+R 164 sgf
1998-02-16 Obuchi Morito Yuki Satoshi W+5.5 282 sgf
1998-03-05 O Rissei Yuki Satoshi W+R 194 sgf
1998-03-05 Miyazawa Goro Yuki Satoshi W+4.5 277 sgf
1998-03-30 Yuki Satoshi Sakai Takeshi W+1.5 317 sgf
1998-03-30 Ishigure Ikuro Sakai Takeshi W+0.5 260 sgf
1998-05-11 Iwata Tatsuaki Sakai Takeshi B+4.5 261 sgf
1998-05-11 Rin Kaiho Iwata Tatsuaki B+0.5 277 sgf
1998-06-01 Kato Masao Rin Kaiho B+3.5 239 sgf

Winner: Kato Masao
Most wins (11): Yamashita Keigo

Group C

date black white result #mv sgf
1997-08-29 O Yuinin Yamada Takuji B+R 149 sgf
1997-08-29 O Yuinin So Yokoku W+1.5 255 sgf
1997-09-16 So Yokoku Kono Mitsuki W+1.5 226 sgf
1997-09-16 Miyazaki Ryutaro Kono Mitsuki B+R 105 sgf
1997-10-20 Miyazaki Ryutaro Kobayashi Chizu W+6.5 248 sgf
1997-10-20 Iguchi Hideichiro Kobayashi Chizu W+2.5 298 sgf
1997-11-04 Kobayashi Chizu Sasaki Tadashi W+R 154 sgf
1997-11-04 Ogawa Tomoko Sasaki Tadashi W+16.5 289 sgf
1997-12-01 Sasaki Tadashi Matsuoka Hideki W+R 188 sgf
1997-12-01 Ueki Yoshio Matsuoka Hideki W+8.5 242 sgf
1997-12-15 Konagai Masaru Matsuoka Hideki W+R 152 sgf
1997-12-15 Matsuoka Hideki Kosugi Masaru B+R 211 sgf
1998-01-26 Matsuoka Hideki Morita Michihiro W+9.5 189 sgf
1998-01-26 Ishikura Noboru Morita Michihiro W+6.5 269 sgf
1998-02-10 Morita Michihiro Chin Kaei B+R 181 sgf
1998-02-10 Miyamoto Yoshihisa Morita Michihiro B+2.5 257 sgf
1998-03-03 O Meien Miyamoto Yoshihisa B+10.5 256 sgf
1998-03-03 Awaji Shuzo O Meien W+R 182 sgf
1998-04-10 O Meien Hisajima Kunio B+R 149 sgf
1998-04-10 O Meien Hane Yasumasa B+4.5 301 sgf
1998-04-21 O Meien Ishii Mamoru B+R 225 sgf
1998-04-21 Otake Hideo O Meien B+R 211 sgf
1998-06-01 Otake Hideo Ryu Shikun B+R 199 sgf

Winner: Otake Hideo
Most wins (5): O Meien

Group D

date black white result #mv sgf
1997-08-18 Matsumoto Takehisa Kim Kwangsik B+3.5 277 sgf
1997-08-18 Nakazawa Ayako Matsumoto Takehisa W+R 224 sgf
1997-09-22 Akiyama Jiro Matsumoto Takehisa B+3.5 314 sgf
1997-09-22 Kono Takashi Akiyama Jiro W+R 196 sgf
1997-10-21 Hagiwara Mutsumi Akiyama Jiro W+12.5 270 sgf
1997-10-21 Hane Naoki Akiyama Jiro W+R 192 sgf
1997-11-11 Shimoji Gensho Akiyama Jiro B+2.5 247 sgf
1997-11-11 Shimoji Gensho Yamamoto Masato W+R 170 sgf
1997-12-08 Yamada Kimio Yamamoto Masato B+R 123 sgf
1997-12-08 Izumitani Hideo Yamada Kimio B+R 165 sgf
1998-01-13 Nishimura Keiji Izumitani Hideo B+7.5 289 sgf
1998-01-13 Nishimura Keiji Taniguchi Toshinori B+R 215 sgf
1998-01-27 Nishimura Keiji Yo Kagen W+2.5 220 sgf
1998-01-27 Hidaka Toshiyuki Yo Kagen W+12.5 273 sgf
1998-02-24 Doi Makoto Yo Kagen W+R 174 sgf
1998-02-24 Honda Kunihisa Yo Kagen B+R 199 sgf
1998-03-23 Goto Shungo Honda Kunihisa W+R 166 sgf
1998-03-23 Kataoka Satoshi Honda Kunihisa W+R 234 sgf
1998-04-20 Honda Kunihisa Nakamura Hidehito B+R 205 sgf
1998-04-20 Honda Kunihisa Takagi Shoichi W+R 152 sgf
1998-04-27 Takagi Shoichi Chino Tadahiko B+R 155 sgf
1998-04-27 Takagi Shoichi Kobayashi Satoru W+R 204 sgf
1998-05-18 Kobayashi Satoru Kobayashi Koichi B+11.5 260 sgf

Winner: Kobayashi Satoru
Most wins (4): Honda Kunihisa

7th Ryusei Title

Otake Hideo Kobayashi Satoru
B+R		 Cho Chikun
W+R		 Kato Masao
W+R
Kobayashi Satoru
Yamashita Keigo Cho Chikun
W+R
Cho Chikun
O Meien Honda Kunihisa
B+R		 Kato Masao
W+5.5
Honda Kunihisa
Takao Shinji Kato Masao
B+1.5
Kato Masao

Semifinals and Final:

date black white result #mv sgf
1998-07-06 Kobayashi Satoru Cho Chikun W+R 122 sgf
1998-07-06 Honda Kunihisa Kato Masao W+5.5 243 sgf
1998-09-06 Cho Chikun Kato Masao W+R 138 sgf