37th Gosei-sen
Host Organization : Newspaper Go Consortium
Title match
| Players | 1st round 06-28 Hiroshima Hiroshima |
2nd round 07-13 Shizuoka Shizuoka |
3rd round 07-23 Nagaoka Nigata |
4th round 09-02 Kanazawa Ishikawa |
5th round 09-06 Nagoya Aichi |
|---|---|---|---|---|---|
| Hane Naoki (Gosei) | |||||
| Iyama Yuta (Honinbo) | B+R | W+R | B+R |
Iyama Yuta got the title by 3-0.
The win-loss records; Hane Naoki 8-5 Iyama Yuta.
The win-loss records; Hane Naoki 8-5 Iyama Yuta.
Tournament table
| Players | 1st round | 2nd round | 3rd round | Semifinals | Challenger decision match |
|---|---|---|---|---|---|
| Nakano Hironari(9d) | Hikosaka N B+R 12-22 |
Hikosaka N W+4.5 02-23 |
Yamashita K B+R 04-05 |
Iyama Y B+12.5 05-07 | |
| Hikosaka Naoto(9d) | Hikosaka N W+R 11-03 | ||||
| Morita Michihiro(9d) | |||||
| Ha Youngil(5d) | O Rissei B+2.5 10-27 |
O Rissei B+0.5 12-08 | |||
| O Rissei(9d) | |||||
| Sonoda Yuichi(9d) | Cho U B+R 11-03 | ||||
| Cho U(K) | |||||
| Ko Iso(8d) | Yamada N B+R 11-10 |
Yamada N W+2.5 01-19 |
Yamashita K B+R 02-23 | ||
| Yamada Noriyoshi(9d) | |||||
| Cho Sonjin(9d) | Cho Sonjin B+R 11-17 | ||||
| Yokota Shigeaki(9d) | |||||
| Rin Shien(7d) | Rin Kanketsu B+R 12-08 |
Yamashita K W+R 01-19 | |||
| Rin Kanketsu(7d) | |||||
| Anzai Nobuaki(6d) | Yamashita K W+R 11-10 | ||||
| Yamashita Keigo(M) | |||||
| Iyama Yuta(T) | Iyama Y W+4.5 12-01 |
Iyama Y W+R 02-02 |
Iyama Y B+R 04-09 |
Iyama Y W+8.5 04-30 | |
| Cho Chikun(25H) | |||||
| Nakamura Hidehito(9d) | Kobayashi S W+R 10-27 | ||||
| Kobayashi Satoru(9d) | |||||
| Shuto Shun(7d) | Shuto S W+3.5 11-03 |
Kataoka S B+R 02-16 | |||
| Sakai Hideyuki(8d) | |||||
| Yamashiro Hiroshi(9d) | Kataoka S B+R 12-01 | ||||
| Kataoka Satoshi(9d) | |||||
| Ogata Masaki(9d) | Seto T B+R 11-10 |
Seto T B+1.5 02-02 |
Seto T B+R 04-05 | ||
| Seto Taiki(7d) | |||||
| Tsuruta Kazushi(1d) | Nakaonoda T W+R 12-08 | ||||
| Nakaonoda Tomomi(9d) | |||||
| So Yokoku(8d) | Yuki S W+R 01-26 |
Kurahashi M B+R 03-19 | |||
| Yuki Satoshi(9d) | |||||
| Ryu Shikun(9d) | Kurahashi M B+0.5 12-01 | ||||
| Kurahashi Masayuki(9d) | |||||
Note; (K); Kisei (M); Meijin (T); Tengen (25H); 25th Honinbo History; 2011-10-06 Page was created. 2011-10-22,29 Updated. 2011-11-05,12,19,27 Updated. 2011-12-02,09,16,23 Updated. 2012-01-14,21,28 Updated. 2012-02-03,10,19,24 Updated. 2012-03-18,23,31 Updated. 2012-04-06,13,28 Updated. 2012-05-04 Updated. 2012-05-07 Updated. 2012-06-28 Updated. 2012-07-14,23 Updated.
Preliminary tournament A
| Players | 1st round | Final | Players | 1st round | Final | |
|---|---|---|---|---|---|---|
| Ko Iso(8d) | Ko Iso B+3.5 08-18 |
Ko Iso W+R 09-08 |
Oba Junya(6d) | Yoda N B+2.5 09-01 |
Nakaonoda T W+R 10-06 | |
| Takemiya Masaki(9d) | Yoda Norimoto(9d) | |||||
| Xie Yimin(5d) | Xie Yimin B+13.5 07-21 |
Inaba Takahiro(1d) | Nakaonoda T B+R 07-14 | |||
| Sonoda Yasutaka(9d) | Nakaonoda Tomomi(9d) | |||||
| Sakai Maki(8d) | Cho Riyu W+R 07-14 |
Nakamura H W+3.5 08-11 |
Iwata Tatsuaki(9d) | Ogata M W+R 07-07 |
Ogata M W+R 09-29 | |
| Cho Riyu(8d) | Ogata Masaki(9d) | |||||
| Kubo Hideo(6d) | Nakamura H B+R 07-14 |
Sakamoto Yasuo(3d) | Yamada K B+R 08-25 | |||
| Nakamura Hidehito(9d) | Yamada Kimio(9d) | |||||
| Ogaki Yusaku(9d) | So Yokoku W+R 07-07 |
So Yokoku W+R 07-28 |
Ida Atsushi(3d) | Hikosaka N B+R 08-25 |
Hikosaka N W+R 09-22 | |
| So Yokoku(8d) | Hikosaka Naoto(9d) | |||||
| Mukai Chiaki(4d) | Kim Sujun B+R 07-07 |
Okumura Yasushi(6d) | Goto S B+11.5 07-07 | |||
| Kim Sujun(8d) | Goto Shungo(9d) | |||||
| Nakamura Shinya(8d) | Rin Kanketsu W+6.5 07-14 |
Rin Kanketsu W+3.5 08-11 |
Kitano Ryo(7d) | Kitano R B+R 07-07 |
Yamashiro H B+R 09-08 | |
| Rin Kanketsu(7d) | Takei Takashi(6d) | |||||
| Ueda Takashi(4d) | Komatsu H B+R 07-07 |
Yanagisawa Satoshi(3d) | Yamashiro H W+R 08-11 | |||
| Komatsu Hideki(9d) | Yamashiro Hiroshi(9d) | |||||
| Suzuki Yoshimichi(7d) | Morita M B+R 08-04 |
Morita M B+5.5 10-13 |
Nakane Naoyuki(8d) | Nakano H W+R 08-11 |
Nakano H W+R 09-22 | |
| Morita Michihiro(9d) | Nakano Hironari(9d) | |||||
| Kato Atsushi(9d) | Kobayashi K B+R 09-08 |
Muramatsu Hiroki(2d) | Muramatsu H B+R 07-07 | |||
| Kobayashi Koichi(9d) | Ishii Kunio(9d) | |||||
| Sugimoto Akira(7d) | Anzai N W+R 07-07 |
Anzai N W+R 07-28 |
Ueki Yoshio(8d) | Ueki Y W+0.5 07-14 |
Tsuruta K B+R 08-25 | |
| Anzai Nobuaki(6d) | Imamura Yoshiaki(8d) | |||||
| Kamimura Haruo(9d) | Kamimura H W+7.5 07-07 |
Tsuruta Kazushi(1d) | Tsuruta K W+6.5 07-14 | |||
| Kanazawa Hideo(7d) | Ishida Atsushi(9d) | |||||
| Kobayashi Satoru(9d) | Kobayashi S B+12.5 08-04 |
Kobayashi S W+R 09-01 |
Yukawa Mitsuhisa(9d) | Yukawa M B+R 06-22 |
Seto T W+2.5 08-24 | |
| Hashimoto Yujiro(9d) | Fujii Shuya(6d) | |||||
| Kudo Norio(9d) | Suzuki A W+1.5 07-14 |
Seto Taiki(7d) | Seto T B+R 06-01 | |||
| Suzuki Ayumi(6d) | Oda Hiromitsu(7d) | |||||
| O Rissei(9d) | O Rissei B+0.5 08-18 |
O Rissei B+R 09-08 |
Imai Kazuhiro(6d) | Yata N W+6.5 07-13 |
Ha Youngil B+2.5 08-10 | |
| Kono Rin(9d) | Yata Naoki(9d) | |||||
| Miyazawa Goro(9d) | Yashiro K W+R 08-11 |
Ha Youngil(5d) | Ha Youngil B+2.5 06-22 | |||
| Yashiro Kumiko(5d) | Ishii Shinzo(9d) | |||||
| Kataoka Satoshi(9d) | Kataoka S B+R 08-25 |
Kataoka S W+1.5 09-15 |
Sonoda Yuichi(9d) | Sonoda Y B+R 08-03 |
Sonoda Y B+R 08-31 | |
| Takao Shinji(9d) | Furuya Yutaka(8d) | |||||
| Akiyama Jiro(8d) | Akiyama J W+R 07-07 |
Inoue Naoki(2d) | Imamura T B+R 07-27 | |||
| Mimura Tomoyasu(9d) | Imamura Toshiya(9d) | |||||
| Awaji Shuzo(9d) | O Meien W+R 09-01 |
Cho Sonjin B+R 09-22 |
Yokota Shigeaki(9d) | Yokota S B+R 06-08 |
Yokota S W+R 08-10 | |
| O Meien(9d) | Chin Kaei(9d) | |||||
| Cho Sonjin(9d) | Cho Sonjin B+R 08-04 |
Oyama Kunio(9d) | Nakano Y W+R 06-15 | |||
| Rin Kaiho(HT) | Nakano Yasuhiro(9d) | |||||
| Yamada Takuji(8d) | Yamada T W+R 07-07 |
Ryu Shikun B+R 09-01 |
Ushinohama Satsuo(9d) | Kurahashi M B+14.5 08-03 |
Kurahashi M W+R 10-26 | |
| Tsuruyama Atsushi(7d) | Kurahashi Masayuki(9d) | |||||
| Ryu Shikun(9d) | Ryu Shikun W+R 08-11 |
Konishi Kazuko(8d) | Murakawa D B+R 07-13 | |||
| Fukui Masaaki(9d) | Murakawa Daisuke(7d) | |||||
| Izumitani Hideo(8d) | Shuto S W+R 07-07 |
Shuto S W+R 08-11 |
Yamada Noriyoshi(9d) | Yamada N W+R 06-08 |
Yamada N W+R 08-03 | |
| Shuto Shun(7d) | Hoshikawa Manabu(2d) | |||||
| Mitani Tetsuya(7d) | Mitani T W+R 07-14 |
Kunisawa Hiroto(1d) | Hatanaka H B+0.5 06-08 | |||
| Mizokami Tomochika(8d) | Hatanaka Hoshinobu(3d) |
History; 2011-06-03 Page was created. 2011-06-10,17,25 Updated. 2011-07-02,09,15,23,30 Updated. 2011-08-08,12,20,27 Updated. 2011-09-03,10,17,23 Updated. 2011-10-01,08,15,22,29 Updated.