42nd Gosei-sen
Host Organization : Newspaper Go Consortium
Title match
| Players | 1st round 06-22 Matsushima Miyagi |
2nd round 07-19 Hatsukaichi Hiroshima |
3rd round 07-25 Kumamoto Kumamoto |
4th round 08-19 Kanazawa Ishikawa |
5th round 08-25 Osaka Osaka |
|---|---|---|---|---|---|
| Iyama Yuta (Gosei) | W+R | B+R | W+R | ||
| Yamashita Keigo (9 dan) |
Iyama Yuta kept the title by 3-0.
Tournament table
| Players | 1st round | 2nd round | 3rd round | Semifinals | Challenger decision match |
|---|---|---|---|---|---|
| Murakawa Daisuke(8d) | Motoki K W+0.5 01-26 |
Motoki K W+2.5 02-23 |
Motoki K B+R 04-20 |
Yamashita K W+R 05-18 | |
| Kobayashi Koichi(HG) | Motoki K B+5.5 11-17 |
||||
| Motoki Katsuya(8d) | |||||
| Ida Atsushi(8d) | Ogata M W+R 12-01 |
Ryu Shikun B+3.5 01-12 | |||
| Ogata Masaki(9d) | |||||
| Ryu Shikun(9d) | Ryu Shikun W+R 12-08 | ||||
| Yuki Satoshi(9d) | |||||
| Imamura Toshiya(9d) | Imamura T W+R 12-15 |
O Rissei B+0.5 01-19 |
O Rissei W+0.5 02-02 | ||
| Nakane Naoyuki(8d) | |||||
| O Rissei(9d) | O Rissei W+0.5 11-03 | ||||
| Yamada Kimio(9d) | |||||
| Kanazawa Makoto(7d) | Numadate S W+R 11-03 |
Yoda N W+R 12-22 | |||
| Numadate Sakiya(5d) | |||||
| Yoda Norimoto(9d) | Yoda N W+2.5 11-17 | ||||
| Sada Atsushi(3d) | |||||
| Sakai Hideyuki(8d) | Sakai H W+14.5 12-15 |
Saka H W+R 01-19 |
Ichiriki R W+0.5 02-23 |
Yamashita K W+R 04-17 |
|
| Cho Riyu(8d) | |||||
| Takao Shinji(M) | Takao S B+R 12-08 | ||||
| Cho Sonjin(9d) | |||||
| Ohashi Naruya(7d) | Kobayashi S W+R 11-03 |
Ichiriki R B+R 01-19 | |||
| Kobayashi Satoru(9d) | |||||
| Ichiriki Ryo(7d) | Ichiriki R B+R 12-26 | ||||
| Yu Zhengqi(7d) | |||||
| Seto Taiki(8d) | Kono R B+4.5 12-08 |
Kono R B+R 12-22 |
Yamashita K B+R 02-23 | ||
| Kono Rin(9d) | |||||
| Kitano Ryo(8d) | Kitano R B+3.5 11-10 | ||||
| Hon Seisen(3d) | |||||
| Mimura Tomoyasu(9d) | Wu Boyi W+R 12-15 |
Yamashita K W+R 01-26 | |||
| Wu Boyi(3d) | |||||
| Yamashita Keigo(9d) | |||||
Note; (M); Meijin (HG); Honorary Gosei History; 2016-10-30 Page was created. 2016-11-04,12,18,25 Updated. 2016-12-03,10,17,24 Updated. 2017-01-08,13,21,27 Updated. 2017-02-03,17,24 Updated. 2017-04-14,21 Updated. 2017-05-12,19 Updated. 2017-06-24 Updated. 2017-07-22,25 Updated.
Preliminary tournament A
| Players | 1st round | Final | Players | 1st round | Final | |
|---|---|---|---|---|---|---|
| Cho Zuiketsu(2d) | Cho Zuiketsu B+R 06-30 |
Kanazawa M B+R 07-28 |
Kobayashi Koichi(HG) | Kobayashi K W+R 08-04 |
Kobayashi K W+0.5 09-01 | |
| Oya Koichi(9d) | Uchida Shuhei(7d) | |||||
| Takagi Shoichi(9d) | Kanazawa M B+R 06-30 |
Kamimura Haruo(9d) | Shuto S B+R 07-07 | |||
| Kanazawa Makoto(7d) | Shuto Shun(7d) | |||||
| Mimura Tomoyasu(9d) | Mimura T W+R 07-21 |
Mimura T B+R 08-18 |
Kato Yuki(6d) | Kato Y B+R 08-04 |
Ohashi N B+R 09-01 | |
| Kono Takashi(8d) | Hikosaka Naoto(9d) | |||||
| Koyama Kuya(3d) | Kazama J B+2.5 07-21 |
Matsuoka Hideki(9d) | Ohashi N B+R 07-14 | |||
| Kazama Jun(2d) | Ohashi Naruya(7d) | |||||
| Ryu Shikun(9d) | Ryu Shikun W+R 08-25 |
Ryu Shikun W+7.5 09-08 |
Kitano Ryo(8d) | Kitano R W+1.5 06-30 |
Kitano R B+R 09-29 | |
| Mitani Tetsuya(7d) | Nakao Jungo(8d) | |||||
| Ko Mosei(9d) | Horimoto M W+R 06-30 |
Shimojima Yohei(8d) | Shimojima Y B+0.5 08-25 | |||
| Horimoto Mitsunari(4d) | Hane Naoki(9d) | |||||
| Oba Junya(7d) | Shibano T B+R 08-11 |
Yoda N B+R 09-29 |
Katayama Yasuo(8d) | Katayama Y B+1.5 06-30 |
Nakane N W+R 08-11 | |
| Shibano Toramaru(2d) | Tsuruta Kazushi(3d) | |||||
| Michael Redmond(9d) | Yoda N B+8.5 07-21 |
Yanagisawa Satoshi(5d) | Nakane N B+R 07-21 | |||
| Yoda Norimoto(9d) | Nakane Naoyuki(9d) | |||||
| Cho Chikun(HM) | Cho Chikun W+R 06-30 |
Ichiriki R W+R 11-03 |
Mutsuura Yuta(3d) | Nakano H B+R 06-30 |
Yamada K B+2.5 09-01 | |
| Yamada Shinji(6d) | Nakano Hironari(9d) | |||||
| Ito Masashi(4d) | Ichiriki R W+R 07-28 |
Yamada Kimio(9d) | Yamada K W+R 08-04 | |||
| Ichiriki Ryo(7d) | Goto Shungo(9d) | |||||
| So Yokoku(9d) | Ri Ishu W+R 06-30 |
Motoki K W+R 09-01 |
Ishida Atsushi(9d) | Shida T W+7.5 09-01 |
Ogata M B+1.5 09-22 | |
| Ri Ishu(7d) | Shida Tatsuya(7d) | |||||
| Rin Kaiho(HT) | Motoki K B+R 07-07 |
Ogata Masaki(9d) | Ogata M B+R 06-30 | |||
| Motoki Katsuya(7d) | Yamamori Tadanao(6d) | |||||
| Kobayashi Satoru(9d) | Kobayashi S B+R 09-08 |
Kobayashi S B+0.5 10-13 |
Kiyonari Tetsuya(9d) | Wu Boyi B+R 10-06 |
Wu Boyi W+1.5 10-26 | |
| Tsuruyama Atsushi(7d) | Wu Boyi(2d) | |||||
| Fujita Akihiko(5d) | Kataoka S W+R 06-30 |
Sonoda Yuichi(9d) | Sonoda Y B+0.5 08-17 | |||
| Kataoka Satoshi(9d) | Taguchi Misei(1d) | |||||
| Morita Michihiro(9d) | Morita M B+R 08-04 |
Numadate S W+0.5 09-01 |
Hon Akiyoshi(1d) | Yukawa M W+R 08-24 |
Seto T W+4.5 09-21 | |
| Kim Sujun(8d) | Yukawa Mitsuhisa(9d) | |||||
| Numadate Sakiya(4d) | Numadate S B+R 08-11 |
Honda Kunihisa(9d) | Seto T W+R 08-24 | |||
| Akiyama Jiro(9d) | Seto Taiki(8d) | |||||
| Katsura Atsushi(5d) | Kono R B+2.5 07-28 |
Kono R B+R 09-15 |
Yun Chunho(3d) | Hatanaka H B+0.5 08-04 |
Imamura T B+R 09-28 | |
| Kono Rin(9d) | Hatanaka Hoshinobu(4d) | |||||
| Obuchi Kotaro(4d) | Kyo Kagen B+R 08-11 |
Nakano Yasuhiro(9d) | Imamura T W+R 08-25 | |||
| Kyo Kagen(4d) | Imamura Toshiya(9d) | |||||
| Hoshino Masaki(9d) | Hoshino M B+R 06-30 |
O Rissei B+4.5 09-22 |
Yu Zhengqi(7d) | Yu Zhengqi W+R 08-11 |
Yu Zhengqi W+4.5 10-06 | |
| Son Makoto(4d) | Inoue Naoki(3d) | |||||
| O Rissei(9d) | O Rissei B+R 08-11 |
Nishi Takenobu(1d) | Nishi T W+R 08-18 | |||
| Suzuki Shinji(6d) | Arakaki Shun(9d) | |||||
| Kato AtsushI(9d) | Matsumoto T B+R 06-30 |
Cho Sonjin B+R 10-06 |
Oyama Kunio(9d) | Hon Seisen B+R 07-20 |
Hon Seisen W+3.5 08-24 | |
| Matsumoto Takehisa(7d) | Hon Seisen(3d) | |||||
| Ko Reibun(7d) | Cho Sonjin W+R 09-01 |
Kurahashi Masayuki(9d) | Imai K W+R 07-27 | |||
| Cho Sonjin(9d) | Imai Kazuhiro(7d) | |||||
| Yo Chito(3d) | Mizokami T W+R 06-30 |
Cho Riyu B+R 10-06 |
Fujiwara Katsuya(6d) | Ha Youngil B+R 08-18 |
Yuki S B+R 10-27 | |
| Mizokami Tomochika(9d) | Ha Youngil(6d) | |||||
| Yo Kaei(8d) | Cho Riyu B+1.5 07-28 |
Sakakibara Fumiko(6d) | Yuki S B+2.5 09-14 | |||
| Cho Riyu(8d) | Yuki Satoshi(9d) |
Note; (HM); Honorary Meijin (HT); Honorary Tengen (HG); Honorary Gosei History; 2016-07-01 Page was created. 2016-07-09,15,22,30 Updated. 2016-08-06,13,19,26 Updated. 2016-09-03,09,17,24 Updated. 2016-10-02,07,14,22,30 Updated. 2016-11-04 Updated.