View source for 45th Judan

The '''45th [[Judan (Go)|Judan]]''' was held from May 11, 2006<ref name=NHK>{{Cite web |url=http://www.nihonkiin.or.jp/kisen/jyudan/045-e.htm |title=Nihon Ki-in: Judan Title |access-date=2007-02-21 |archive-url=https://web.archive.org/web/20070423080737/http://www.nihonkiin.or.jp/kisen/jyudan/045-e.htm |archive-date=2007-04-23 |url-status=dead }}</ref> to April 25, 2007. The current sponsor is [[Sankei Newspapers]].<ref name="NHK"/> The holder is [[Cho Chikun]], and the challenger is [[Keigo Yamashita]] for the second time in a row. [[Hideki Komatsu]], [[Norimoto Yoda]], [[Kimio Yamada]], [[Hideo Otake]], [[Koichi Kobayashi]], [[Kim Shushun]], [[Naoki Hane]], and [[Takeshi Sakai]] qualified through preliminary tournaments.<ref name=IGOKISEN>{{Cite web |url=http://igo-kisen.hp.infoseek.co.jp/judan.html |title=Judan title from Igo-Kisen |access-date=2007-02-21 |archive-url=https://web.archive.org/web/20070222153857/http://igo-kisen.hp.infoseek.co.jp/judan.html |archive-date=2007-02-22 |url-status=dead }}</ref> The rest of the players were given spots automatically.

==Preliminaries==
{{4TeamBracket
| RD1-seed1=
| RD1-team1=[[Shigeaki Yokota]] ''9 dan''
| RD1-score1=0
| RD1-seed2=
| RD1-team2='''[[Hideki Komatsu]]''' ''9 dan''
| RD1-score2=1
| RD1-seed3=
| RD1-team3='''[[Yoshio Ishida]]''' ''9 dan''
| RD1-score3=1
| RD1-seed4=
| RD1-team4=[[Toshiya Imamura]] ''9 dan''
| RD1-score4=0
| RD2-seed1=
| RD2-team1='''Hideki Komatsu''' ''9 dan''
| RD2-score1=1
| RD2-seed2=
| RD2-team2=Yoshio Ishida ''9 dan''
| RD2-score2=0
}}<ref name="IGOKISEN"/>

{{4TeamBracket
| RD1-seed1=
| RD1-team1='''[[Norimoto Yoda]]''' ''[[Gosei (competition)|Gosei]]''
| RD1-score1=1
| RD1-seed2=
| RD1-team2=[[Hideyuki Sakai]] ''7 dan''
| RD1-score2=0
| RD1-seed3=
| RD1-team3=[[Shinichi Aoki]] ''9 dan''
| RD1-score3=0
| RD1-seed4=
| RD1-team4='''[[Kenichi Mochizuki]]''' ''6 dan''
| RD1-score4=1
| RD2-seed1=
| RD2-team1='''Norimoto Yoda''' ''Gosei''
| RD2-score1=1
| RD2-seed2=
| RD2-team2=Kenichi Mochizuki ''6 dan''
| RD2-score2=0
}}<ref name="IGOKISEN"/>

{{4TeamBracket
| RD1-seed1=
| RD1-team1=[[Yo Kaei]] ''8 dan''
| RD1-score1=0
| RD1-seed2=
| RD1-team2='''[[Kimio Yamada]]''' ''9 dan''
| RD1-score2=1
| RD1-seed3=
| RD1-team3='''[[Rin Kono]]''' ''[[Tengen (Go)|Tengen]]''
| RD1-score3=1
| RD1-seed4=
| RD1-team4=[[Kunihisa Honda]] ''9 dan''
| RD1-score4=0
| RD2-seed1=
| RD2-team1='''Kimio Yamada''' ''9 dan''
| RD2-score1=1
| RD2-seed2=
| RD2-team2=Rin Kono ''Tengen''
| RD2-score2=0
}}<ref name="IGOKISEN"/>

{{4TeamBracket
| RD1-seed1=
| RD1-team1=[[Noriyoshi Yamada]] ''9 dan''
| RD1-score1=0
| RD1-seed2=
| RD1-team2='''[[Kana Mannami]]''' ''3 dan'' ♀
| RD1-score2=1
| RD1-seed3=
| RD1-team3=[[Ryu Shikun]] ''9 dan''
| RD1-score3=0
| RD1-seed4=
| RD1-team4='''[[Hideo Otake]]''' ''[[Honorary Gosei]]''
| RD1-score4=1
| RD2-seed1=
| RD2-team1=Kana Mannami ''3 dan'' 
| RD2-score1=0
| RD2-seed2=
| RD2-team2='''Hideo Otake''' ''Honorary Gosei''
| RD2-score2=1
}}<ref name="IGOKISEN"/>

{{4TeamBracket
| RD1-seed1=
| RD1-team1='''[[Koichi Kobayashi]]''' ''[[Honorary Kisei]]''
| RD1-score1=1
| RD1-seed2=
| RD1-team2=[[Naoto Hikosaka]] ''9 dan''
| RD1-score2=0
| RD1-seed3=
| RD1-team3='''[[Shinya Nakamura]]''' ''8 dan''
| RD1-score3=1
| RD1-seed4=
| RD1-team4=[[Katsunori Yanaka]] ''8 dan''
| RD1-score4=0
| RD2-seed1=
| RD2-team1='''Koichi Kobayashi''' ''Honorary Kisei''
| RD2-score1=0
| RD2-seed2=
| RD2-team2=Shinya Nakamura ''8 dan''
| RD2-score2=1
}}<ref name="IGOKISEN"/>

{{4TeamBracket
| RD1-seed1=
| RD1-team1='''[[Kim Shushun]]''' ''7 dan''
| RD1-score1=1
| RD1-seed2=
| RD1-team2=[[Mitsuhisa Yukawa]] ''9 dan''
| RD1-score2=0
| RD1-seed3=
| RD1-team3=[[Masaki Ogata]] ''9 dan''
| RD1-score3=0
| RD1-seed4=
| RD1-team4='''[[Michael Redmond (Go player)|Michael Redmond]]''' ''9 dan''
| RD1-score4=1
| RD2-seed1=
| RD2-team1='''Kim Shushun''' ''7 dan''
| RD2-score1=1
| RD2-seed2=
| RD2-team2=Michael Redmond ''9 dan''
| RD2-score2=0
}}<ref name="IGOKISEN"/>

{{4TeamBracket
| RD1-seed1=
| RD1-team1=[[Masayuki Kurahashi]] ''9 dan''
| RD1-score1=0
| RD1-seed2=
| RD1-team2='''[[Maki Sakai]]''' ''8 dan''
| RD1-score2=1
| RD1-seed3=
| RD1-team3='''[[Naoki Hane]]''' ''9 dan''
| RD1-score3=0
| RD1-seed4=
| RD1-team4=[[Cho Sonjin]] ''9 dan''
| RD1-score4=1
| RD2-seed1=
| RD2-team1=Maki Sakai ''8 dan''
| RD2-score1=0
| RD2-seed2=
| RD2-team2='''Naoki Hane''' ''9 dan''
| RD2-score2=1
}}<ref name="IGOKISEN"/>

{{4TeamBracket
| RD1-seed1=
| RD1-team1='''[[Rin Kaiho]]''' ''[[Honorary Tengen]]''
| RD1-score1=1
| RD1-seed2=
| RD1-team2=[[Satoshi Kataoka]] ''9 dan''
| RD1-score2=0
| RD1-seed3=
| RD1-team3=[[Nakano Hironari]] ''9 dan''
| RD1-score3=0
| RD1-seed4=
| RD1-team4='''[[Takeshi Sakai]]''' ''9 dan''
| RD1-score4=1
| RD2-seed1=
| RD2-team1=Rin Kaiho ''Honorary Tengen''
| RD2-score1=0
| RD2-seed2=
| RD2-team2='''Takeshi Sakai''' ''9 dan''
| RD2-score2=1
}}<ref name="IGOKISEN"/>

==Main tournament==

===Winners section===
{{Round16
||'''[[Satoru Kobayashi (Go player)|Satoru Kobayashi]]''' ''9 dan''|1|[[So Yokoku]] ''8 dan''|0
||[[Hiroshi Yamashiro]] ''9 dan''|0|'''[[Kim Shushun]]''' ''7 dan''|1
||[[Takeshi Sakai]] ''9 dan''|0|'''[[Norimoto Yoda]]''' ''9 dan''|1
||[[Koichi Kobayashi]]<br> ''[[Honorary Kisei]]''|0|'''[[Keigo Yamashita]]''' ''[[Kisei (go)|Kisei]]''|1
||'''[[Cho U]]''' ''[[Gosei (competition)|Gosei]]''|1|[[Shinji Takao]] ''[[Meijin]]''|0
||[[Hideo Otake]]<br> ''[[Honorary Gosei]]''|0|'''[[Hideki Komatsu]]''' ''9 dan''|1
||'''[[Kimio Yamada]]''' ''9 dan''|1|[[Tomoyasu Mimura]] ''9 dan''|0
||[[Naoki Hane]] ''9 dan''|0|'''[[O Rissei]]''' ''9 dan''|1
||'''Satoru Kobayashi''' ''9 dan''|1|Kim Shushun ''7 dan''|0
||Norimoto Yoda ''9 dan''|0|'''Keigo Yamashita''' ''Kisei''|1
||'''Cho U''' ''Gosei''|1|Hideki Komatsu ''9 dan''|0
||'''Kimio Yamada''' ''9 dan''|1|O Rissei ''9 dan''|0
||Satoru Kobayashi ''9 dan''|0|'''Keigo Yamashita''' ''Kisei''|1
||'''Cho U''' ''Gosei''|1|Kimio Yamada ''9 dan''|0
||'''Keigo Yamashita''' ''Kisei''|1|Cho U ''Gosei''|0
|3rdplace=no}}<ref name="NHK"/>

===Losers section===
{{4TeamBracket
| RD1-seed1=
| RD1-team1=[[Shinji Takao]] ''[[Meijin]]''
| RD1-score1=0
| RD1-seed2=
| RD1-team2='''[[Cho U]]''' ''[[Gosei (competition)|Gosei]]''
| RD1-score2=1
| RD1-seed3=
| RD1-team3='''[[Norimoto Yoda]]''' ''9 dan''
| RD1-score3=1
| RD1-seed4=
| RD1-team4=[[Satoru Kobayashi (Go player)|Kobayashi Satoru]] ''9 dan''
| RD1-score4=0
| RD2-seed1=
| RD2-team1=[[Cho U]] ''[[Gosei (competition)|Gosei]]''
| RD2-score1=0
| RD2-seed2=
| RD2-team2='''[[Norimoto Yoda]]''' ''9 dan''
| RD2-score2=1
}}<ref name="NHK"/>

===Challenger finals===
{{2TeamBracket
| RD1-team1 = '''[[Keigo Yamashita]]''' ''[[Kisei (go)|Kisei]]''
| RD1-score1 = '''1'''
| RD1-team2 = [[Norimoto Yoda]] ''9 dan''
| RD1-score2 = 0
}}<ref name="NHK"/>

==Finals==
{| class="toccolours" border="1" cellpadding="4" cellspacing="0" style="border-collapse: collapse; margin:0;" 
|-
!width=125 style="text-align:center;" | Player
!width=70 style="text-align:center;" | 1<br> ([[Niigata, Niigata|Niigata]])
!width=70 style="text-align:center;" | 2<br> ([[Gamagori, Aichi|Gamagori]])
!width=70 style="text-align:center;" | 3<br> ([[Ōmachi, Nagano|Ōmachi]])
!width=70 style="text-align:center;" | 4 <br>([[Matsuyama, Ehime|Matsuyama]])
!width=70 style="text-align:center;" | 5<br>([[Chiyoda, Tokyo|Chiyoda]])
!width=70 style="text-align:center;" | T
|- align=center
| '''[[Cho Chikun]]'''<br> ([[Judan (Go)|Judan]]) || W+R || B+2.5 ||  ||  || B+3.5 || 3
|- align=center
| [[Keigo Yamashita]]<br> (Challenger) ||  ||  || B+R || W+R ||  || 2
|}<ref name="IGOKISEN"/>

==References==
{{Reflist}}

==External links==
*[https://web.archive.org/web/20070423080737/http://www.nihonkiin.or.jp/kisen/jyudan/045-e.htm Judan information from Nihon Ki-in]
*[https://web.archive.org/web/20070222153857/http://igo-kisen.hp.infoseek.co.jp/judan.html Igo-Kisen Judan]

{{Judan}}

{{DEFAULTSORT:Judan (45)}}
[[Category:2007 in go]]
[[Category:2007 in Japan]]
[[Category:Go competitions in Japan]]
[[Category:2006 in go]]
[[Category:2006 in Japan]]