38th Gosei-sen
Host Organization : Newspaper Go Consortium
Title match
| Players | 1st round 07-06 Kanazawa Ishikawa |
2nd round 07-22 Nagaoka Nigata |
3rd round 07-26 Kita Osaka |
4th round 08-09 Chiyoda Tokyo |
5th round 08-23 Kita Osaka |
|---|---|---|---|---|---|
| Iyama Yuta (Gosei) | W+1.5 | B+R | W+2.5 | ||
| Kono Rin (9 dan) | B+R | W+R |
Iyama Yuta kept the title by 3-2.
The win-loss records; Iyama Yuta 10-4 Kono Rin.
The win-loss records; Iyama Yuta 10-4 Kono Rin.
Tournament table
| Players | 1st round | 2nd round | 3rd round | Semifinals | Challenger decision match |
|---|---|---|---|---|---|
| Seto Taiki(7d) | Seto T B+R 01-31 |
Cho Riyu W+R 03-04 |
Cho Riyu B+R 05-09 |
Kono R B+0.5 05-23 |
Kono R B+1.5 06-03 |
| Ko Iso(8d) | |||||
| Arakaki Shun(9d) | Cho Riyu W+R 01-31 | ||||
| Cho Riyu(8d) | |||||
| Yu Zhengqi(3d) | So Yokoku B+R 11-29 |
So Yokoku W+0.5 02-21 | |||
| So Yokoku(8d) | |||||
| Ishii Kunio(9d) | Cho Chikun W+R 11-15 | ||||
| Cho Chikun(25H) | |||||
| Kono Rin(9d) | Kono R W+5.5 02-21 |
Kono R B+R 03-28 |
Kono R W+R 05-02 | ||
| Yukawa Mitsuhisa(9d) | |||||
| Shida Tatsuya(6d) | Goto S W+R 01-10 | ||||
| Goto Shungo(9d) | |||||
| Takemiya Masaki(9d) | Takemiya M W+R 02-28 |
Takemiya M W+3.5 04-11 | |||
| Yuki Satoshi(J) | |||||
| Kato Atsushi(9d) | Kato A W+4.5 11-22 | ||||
| Hane Naoki(9d) | |||||
| Matsumoto Takehisa(7d) | Matsumoto T B+R 11-15 |
Matsumoto T W+2.5 02-14 |
Matsumoto T W+R 04-25 |
Matsumoto T W+1.5 05-23 | |
| Kobayashi Satoru(9d) | |||||
| Mizokami Tomochika(8d) | Kubo K W+R 01-24 | ||||
| Kubo Katsuaki(9d) | |||||
| Ri Ishu(7d) | Nakane N W+3.5 02-07 |
Yamashita K B+R 03-07 | |||
| Nakane Naoyuki(8d) | |||||
| Mitani Tetsuya(7d) | Yamashita K W+1.5 12-13 | ||||
| Yamashita Keigo(M) | |||||
| Hikosaka Naoto(9d) | Sakai H W+5.5 01-17 |
Cho U B+1.5 04-18 |
Akiyama J W+0.5 05-09 | ||
| Sakai Hideyuki(8d) | |||||
| Yun Chunho(1d) | Cho U B+R 12-13 | ||||
| Cho U(9d) | |||||
| Akiyama Jiro(8d) | Akiyama J W+R 02-07 | ||||
| Ida Atsushi(4d) | |||||
Note; (K); Kisei (M); Meijin (J); Judan (25H); 25th Honinbo History; 2012-11-12 Page was created. 2012-11-16,23,30 Updated. 2012-12-08,15 Updated. 2013-01-04,12,19,26 Updated. 2013-02-03,10,17,23 Updated. 2013-03-03,10,22,29 Updated. 2013-04-06,13,20,26 Updated. 2013-05-03,11,17,24,31 Updated. 2013-06-03 Updated. 2013-07-06,22,26 Updated. 2013-08-09,23 Updated.
Preliminary tournament A
| Players | 1st round | Final | Players | 1st round | Final | |
|---|---|---|---|---|---|---|
| Mitani Tetsuya(7d) | Mitani T W+R 08-16 |
Mitani T W+0.5 09-13 |
Yoda Norimoto(9d) | Ri Ishu W+R 08-16 |
Ri Ishu W+0.5 09-27 | |
| Tamai Shin(3d) | Ri Ishu(7d) | |||||
| Rin Kanketsu(7d) | Takao S B+R 08-23 |
Yashiro Kumiko(5d) | Otake H W+4.5 08-23 | |||
| Takao Shinji(9d) | Otake Hideo(HG) | |||||
| Cho Riyu(8d) | Cho Riyu B+8.5 08-23 |
Cho Riyu B+R 10-18 |
Shida Tatsuya(5d) | Shida T B+2.5 09-06 |
Shida T B+R 09-27 | |
| Ishida Yoshio(24H) | Nakano Hironari(9d) | |||||
| Nakamura Hidehito(9d) | Nakamura H W+R 09-20 |
Sano Takatsugu(7d) | Yamada K W+R 09-06 | |||
| Awaji Shuzo(9d) | Yamada Kimio(9d) | |||||
| Suzuki Ayumi(6d) | Takemiya M W+R 08-16 |
Takemiya M B+0.5 09-20 |
Nakao Jyungo(8d) | Nakao J B+R 09-27 |
Ida A W+0.5 11-01 | |
| Takemiya Masaki(9d) | Yamashiro Hiroshi(9d) | |||||
| Morita Michihiro(9d) | Oba J W+R 08-16 |
Ida Atsushi(3d) | Ida A B+R 08-30 | |||
| Oba Junya(6d) | Kitano Ryo(7d) | |||||
| Akiyama Jiro(9d) | Akiyama J B+0.5 08-16 |
Akiyama J B+R 09-13 |
Okumura Yasushi(7d) | Muramatsu H W+R 09-20 |
Nakane N W+7.5 10-18 | |
| Hirata Tomoya(3d) | Muramatsu Hiroki(2d) | |||||
| Kamimura Haruo(9d) | Kamimura H B+0.5 08-16 |
Nakane Naoyuki(8d) | Nakane N W+5.5 09-06 | |||
| Mochizuki Kenichi(7d) | Ueki Yoshio(8d) | |||||
| Ryu Shikun(9d) | Mizokami T W+7.5 09-13 |
Mizokami T B+R 10-11 |
Imamura Yoshiaki(9d) | Imamura Y W+R 08-16 |
Ishii K B+R 09-27 | |
| Mizokami Tomochika(8d) | Ogata Masaki(9d) | |||||
| O Rissei(9d) | O Rissei B+R 08-16 |
Ishii Kunio(9d) | Ishii K B+R 09-06 | |||
| Hashimoto Yujiro(9d) | Tsuruta Kazushi(1d) | |||||
| Xie Yimin(6d) | Fujita A B+R 08-23 |
Kato A W+R 10-04 |
Goto Shungo(9d) | Goto S W+R 09-27 | ||
| Fujita Akihiko(3d) | Sasaki Tsuyoshi(6d) | Araki I B+3.5 09-06 | ||||
| Shuto Shun(7d) | Kato A W+4.5 09-13 |
Araki Issei(6d) | ||||
| Kato Atsushi(9d) | Yukawa Mitsuhisa(9d) | Yukawa M W+R 07-04 |
Yukawa M W+R 08-08 | |||
| Mimura Tomoyasu(9d) | Mimura T B+R 09-27 |
Ko Iso B+1.5 10-25 |
Mine Yasuhiro(3d) | |||
| Anzai Nobuaki(6d) | Takahara Shuji(9d) | Honda K B+6.5 07-04 | ||||
| Ko Iso(8d) | Ko Iso W+R 09-06 |
Honda Kunihisa(9d) | ||||
| Terayama Rei(3d) | Yokota Shigeaki(9d) | Yokota S W+R 08-22 |
Yu Zhengqi W+R 10-04 | |||
| Komatsu Hideki(9d) | Cho Chikun W+3.5 09-27 |
Cho Chikun W+R 10-18 |
Nakano Yasuhiro(9d) | |||
| Cho Chikun(25H) | Yu Zhengqi(2d) | Yu Zhengqi W+R 08-16 | ||||
| Cho Sonjin(9d) | Nakamura S B+4.5 08-16 |
Imamura Toshiya(9d) | ||||
| Nakamura Shinya(8d) | Endo Takahiro(9d) | Kurahashi M W+R 08-08 |
Arakaki S W+9.5 09-12 | |||
| Rin Shien(7d) | Matsumoto T W+R 08-16 |
Matsumoto T W+5.5 09-06 |
Kurahashi Masayuki(9d) | |||
| Matsumoto Takehisa(7d) | Hotta Yozo(9d) | Arakaki S B+R 07-25 | ||||
| Kataoka Satoshi(9d) | Kataoka S W+4.5 08-16 |
Arakaki Shun(9d) | ||||
| Son Makoto(2d) | Yun Chunho(1d) | Yun Chunho B+R 09-05 |
Yun Chunho B+3.5 10-03 | |||
| Kobayashi Koichi(HG) | Kobayashi K B+1.5 09-13 |
Kobayashi S B+0.5 10-25 |
Furuya Yutaka(8d) | |||
| Tsuneishi Takashi(1d) | Chin Kaei(9d) | Chin Kaei W+R 07-18 | ||||
| Kobayashi Satoru(9d) | Kobayashi S B+0.5 09-13 |
Hoshikawa Koyo(3d) | ||||
| Suzuki Shinji(3d) | Kubo Katsuaki(9d) | Kubo K W+R 08-08 |
Kubo K W+R 09-19 | |||
| Yamada Takuji(8d) | Yamada T W+R 08-16 |
Kono R W+3.5 09-06 |
Ishii Akane(2d) | |||
| Tsuruyama Atsushi(7d) | Yata Naoki(9d) | Ha Youngil W+0.5 08-29 | ||||
| O Meien(9d) | Kono R B+R 08-16 |
Ha Youngil(5d) | ||||
| Kono Rin(9d) | Hoshikawa Takumi(3d) | Kiyonari T W+R 09-05 |
Sakai H W+R 09-26 | |||
| Kim Sujun(8d) | Kim Sujun W+1.5 08-16 |
So Yokoku B+R 09-20 |
Kiyonari Tetsuya(9d) | |||
| Rin Kaiho(HT) | Sekiyama Toshimichi(9d) | Sakai H W+R 08-29 | ||||
| So Yokoku(8d) | So Yokoku B+R 08-16 |
Sakai Hideyuki(8d) | ||||
| Sugimoto Akira(8d) | ||||||
Note; (25H); 25th Honinbo (24H); 24th Honinbo (HT); Honorary Tengen (HG); Honorary Gosei History; 2012-07-06 Page was created. 2012-07-14,21,28 Updated. 2012-08-03,10,17,24,31 Updated. 2012-09-07,15,21,28 Updated. 2012-10-05,12,19,26 Updated. 2012-11-03 Updated.