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21st Ryusei title

Eight times 12 players play a ladder. The winner of each ladder and the player with most wins proceed to the 16-player knockout tournament. Time is 30 secs/move, 10 times 1 minute. Komi is 6.5.

The eight ladders

Group A

date	black	white	result	#mv	sgf
2011-08-11	Anzai Nobuaki	Ichiriki Ryo	W+R	250	sgf
2011-08-11	Ohba Junya	Ichiriki Ryo	B+R	127	sgf
2011-09-12	Cho Riyu	Ohba Junya	B+R	195	sgf
2011-09-12	So Yokoku	Cho Riyu	B+R	221	sgf
2011-10-13	Yamada Noriyoshi	So Yokoku	W+R	146	sgf
2011-10-13	Ogaki Yusaku	So Yokoku	B+R	213	sgf
2011-12-15	Kamimura Haruo	Ogaki Yusaku	W+R	182	sgf
2011-12-15	Ogaki Yusaku	Awaji Shuzo	W+8.5	290	sgf
2012-02-02	Suzuki Ayumi	Awaji Shuzo	W+R	176	sgf
2012-02-02	Awaji Shuzo	Kuwamoto Shinpei	B+R	169	sgf
2012-03-22	Iyama Yuta	Awaji Shuzo	B+7.5	268	sgf

Winner: Iyama Yuta
Most wins (3): Awaji Shuzo

Group B

date	black	white	result	#mv	sgf
2011-07-28	Numadate Sakiya	Ohashi Hirofumi	B+1.5	311	sgf
2011-07-28	Numadate Sakiya	Kato Yuki	W+R	226	sgf
2011-10-10	Ko Iso	Kato Yuki	B+R	161	sgf
2011-10-10	Furuya Yutaka	Ko Iso	W+3.5	288	sgf
2011-12-01	Nakano Yasuhiro	Ko Iso	W+R	172	sgf
2011-12-01	Nakano Hironari	Ko Iso	W+R	130	sgf
2012-01-19	Aragaki Takeshi	Ko Iso	W+R	160	sgf
2012-01-19	Sakaguchi Ryuzo	Ko Iso	W+R	208	sgf
2012-03-01	Ando Kazushige	Ko Iso	W+R	220	sgf
2012-03-01	Ko Iso	Mitani Tetsuya	W+R	236	sgf
2012-03-22	Yuki Satoshi	Mitani Tetsuya	W+2.5	256	sgf

Winner: Mitani Tetsuya
Most wins (7): Ko Iso

Group C

date	black	white	result	#mv	sgf
2011-08-25	Adachi Toshimasa	Xie Yimin	B+R	185	sgf
2011-08-25	Adachi Toshimasa	Mitsunaga Junzou	B+14.5	264	sgf
2011-11-03	Adachi Toshimasa	Maeda Ryoji	B+R	203	sgf
2011-11-03	Adachi Toshimasa	Akiyama Jiro	W+R	176	sgf
2011-12-05	Kono Rin	Akiyama Jiro	B+10.5	316	sgf
2011-12-05	Ishida Atsushi	Kono Rin	W+4.5	252	sgf
2012-02-23	Yamashiro Hiroshi	Kono Rin	B+R	247	sgf
2012-02-23	Fukui Masaaki	Yamashiro Hiroshi	W+2.5	241	sgf
2012-04-12	Cho Chikun	Yamashiro Hiroshi	B+3.5	272	sgf
2012-04-12	Kim Sujun	Cho Chikun	B+0.5	344	sgf
2012-04-30	Cho U	Kim Sujun	B+R	99	sgf

Winner: Cho U
Most wins (3): Adachi Toshimasa

Group D

date	black	white	result	#mv	sgf
2011-08-04	Obuchi Kotaro	Ohashi Naruya	W+R	242	sgf
2011-08-04	Ohashi Naruya	Sasaki Tsuyoshi	B+R	169	sgf
2011-09-26	Ohashi Naruya	Takahashi Hideo	B+2.5	261	sgf
2011-09-26	Ohashi Naruya	Kono Mitsuki	W+4.5	253	sgf
2011-10-24	Kono Mitsuki	Sugiuchi Kazuko	B+R	137	sgf
2011-10-24	Kono Mitsuki	Imamura Yoshiaki	B+3.5	308	sgf
2012-02-02	Kiyonari Tetsuya	Kono Mitsuki	B+R	139	sgf
2012-02-02	Kiyonari Tetsuya	Ishii Kunio	B+7.5	253	sgf
2012-03-08	Ishida Yoshio	Kiyonari Tetsuya	B+4.5	246	sgf
2012-03-08	Ishida Yoshio	Kato Atsushi	W+6.5	333	sgf
2012-04-26	Yamashita Keigo	Kato Atsushi	B+R	121	sgf

Winner: Yamashita Keigo
Most wins (3): Kono Mitsuki

Group E

date	black	white	result	#mv	sgf
2011-08-29	Terayama Rei	Makihata Taeko	B+R	213	sgf
2011-08-29	Takei Takashi	Terayama Rei	B+R	235	sgf
2011-10-17	Sugimoto Akira	Takei Takashi	W+R	146	sgf
2011-10-17	Kono Takashi	Takei Takashi	B+R	169	sgf
2011-11-10	Kono Takashi	Iwata Hajime	B+R	95	sgf
2011-11-10	Komatsu Hideki	Kono Takashi	W+1.5	311	sgf
2011-12-19	Kono Takashi	Takahara Shuji	B+7.5	244	sgf
2011-12-19	Cho Sonjin	Kono Takashi	B+R	143	sgf
2012-03-15	Cho Sonjin	Otake Hideo	B+0.5	253	sgf
2012-03-15	Cho Sonjin	Tei Meiko	B+R	169	sgf
2012-04-26	Sakai Hideyuki	Cho Sonjin	W+R	212	sgf

Winner: Cho Sonjin
Most wins (4): Cho Sonjin
2nd most wins (4): Kono Takashi

Group F

date	black	white	result	#mv	sgf
2011-08-22	Tajima Shingo	Horimoto Mitsunari	W+R	230	sgf
2011-08-22	Kubo Hideo	Horimoto Mitsunari	B+R	237	sgf
2011-10-27	Rin Shien	Kubo Hideo	B+R	167	sgf
2011-10-27	Rin Shien	Nakane Naoyuki	B+6.5	276	sgf
2011-11-24	Rin Shien	Doi Makoto	B+R	189	sgf
2011-11-24	Rin Shien	So Kofuku	B+R	273	sgf
2012-01-19	Rin Shien	Ogata Masaki	B+R	227	sgf
2012-01-19	O Meien	Rin Shien	B+R	271	sgf
2012-04-16	O Meien	O Rissei	W+4.5	320	sgf
2012-04-16	O Rissei	Takao Shinji	B+R	189	sgf
2012-05-03	Mizokami Tomochika	O Rissei	W+0.5	262	sgf

Winner: O Rissei
Most wins (5): Rin Shien

Group G

date	black	white	result	#mv	sgf
2011-07-25	Shiraishi Yuichi	Ida Atsushi	W+R	222	sgf
2011-07-25	Ida Atsushi	Lee Ishu	W+R	152	sgf
2011-09-08	Lee Ishu	Shuto Shun	W+R	218	sgf
2011-09-08	Yo Kaei	Shuto Shun	W+6.5	271	sgf
2011-11-14	Shuto Shun	Nishimura Keiji	W+R	272	sgf
2011-11-14	Goto Shungo	Nishimura Keiji	W+R	210	sgf
2012-01-12	Oya Koichi	Nishimura Keiji	B+R	175	sgf
2012-01-12	Yoda Norimoto	Oya Koichi	B+R	135	sgf
2012-03-19	Kobayashi Satoru	Yoda Norimoto	W+R	160	sgf
2012-03-19	Shida Tatsuya	Yoda Norimoto	B+4.5	320	sgf
2012-05-03	Yamada Kimio	Shida Tatsuya	W+R	176	sgf

Winner: Shida Tatsuya
Most wins (2): Shida Tatsuya
2nd most wins (2): Yoda Norimoto

Group H

date	black	white	result	#mv	sgf
2011-09-01	Tamai Shin	Suzuki Shinji	W+5.5	268	sgf
2011-09-01	Suzuki Shinji	Seto Taiki	W+R	146	sgf
2011-10-03	Seto Taiki	Mochizuki Kenichi	B+R	229	sgf
2011-10-03	Seto Taiki	Omori Yasushi	B+7.5	234	sgf
2011-11-17	Izumitani Hideo	Seto Taiki	W+R	234	sgf
2011-11-17	Yukawa Mitsuhisa	Seto Taiki	B+2.5	245	sgf
2011-12-08	Yukawa Mitsuhisa	Imamura Toshiya	B+R	165	sgf
2011-12-08	Yukawa Mitsuhisa	Takemiya Masaki	W+3.5	251	sgf
2012-04-05	Hane Naoki	Takemiya Masaki	B+1.5	261	sgf
2012-04-05	Hane Naoki	Murakawa Daisuke	B+R	147	sgf
2012-04-30	Rin Kanketsu	Hane Naoki	B+2.5	277	sgf

Winner: Rin Kanketsu
Most wins (4): Seto Taiki

21st Ryusei Title

Shida Tatsuya	Awaji Shuzo W+R	Seto Taiki B+0.5	Rin Kanketsu B+R	Iyama Yuta B+R
Awaji Shuzo
Mitani Tetsuya	Seto Taiki W+R
Seto Taiki
Adachi Toshimasa	Yamashita Keigo W+R	Rin Kanketsu B+R
Yamashita Keigo
Kono Takashi	Rin Kanketsu W+2.5
Rin Kanketsu
Cho Sonjin	Rin Shien W+R	O Rissei W+15.5	Iyama Yuta W+0.5
Rin Shien
Kono Mitsuki	O Rissei W+7.5
O Rissei
Yoda Norimoto	Cho U B+3.5	Iyama Yuta B+R
Cho U
Ko Iso	Iyama Yuta W+2.5
Iyama Yuta

Semifinals and Final:

date	black	white	result	#mv	sgf
2012-08-13	Rin Kanketsu	Seto Taiki	B+R	165	sgf
2012-08-13	O Rissei	Iyama Yuta	W+0.5	281	sgf
2012-08-30	Iyama Yuta	Rin Kanketsu	B+R	207	sgf