Honinbo Shusaku vs. Gennan Inseki, 1846GoBase.org
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from the editor

daily problem

problem 1

black to play
++++

GoBase celebrates its 25th birthday

GoBase celebrates its 25th birthday! A big thanks to all GoBase users whom have kept this service alive and relevant all these years.

Check Over the Years for a brief historic overview.

The "25" image was sent to us by Samuel Adkins. If you have another suggestion please send us an SGF file (download sample SGF).  [2019-07-11]

Donations to GoBase.org are highly appreciated since they help us to maintain this site and its services.
Please check out the various ways to donate to GoBase.org.
(newly registered users of this site are required to make a donation as of 2008.) [2011-02-17]

Earlier we reported about 321Go.org, a little brother of GoBase, focusing on newbies and young Go players.
In the mean time lots of new course material and exercises have been added.
Please take the guided tour[2011-01-05]

news archive

Iyama Yuta

Kono Rin

By winning 4 games in a row Iyama Yuta successfully defends his Honinbo title against challenger Kono Rin.


Iyama Yuta

Kono Rin

By winning the 4th game Iyama Yuta equalized (2-2) the title match against challenger Kono Rin.


Murakawa Daisuke


After his unsuccessful challenge last year (3-0 for Iyama Yuta) Murakawa came back strongly this time by taking the 57th Judan title convincingly with a score of 3-1.


Iyama Yuta


Already for the 7th time in a row Iyama Yuta should be called "Kisei". In this 43rd edition the challenger was Yamashita Keigo, which was his 4th challenge in 6 years.


Nakamura Sumire


The Nihon Ki-in will promote Nakamura Sumire, daugther of Nakamura Shinya, 9p at 2019-04-01 to 1p. This is remarkable for two reasons: her age, and she has never been part of the insei program.
However, after having seen a game of her against Cho U, 9p, her promotion to 1p was a fact.
On 2019-01-06 she played a demo game with Iyama Yuta.


Iyama Yuta


By taking the 54th Judan title Iyama Yuta completes the grand slam, all seven major titles. These titles are: Kisei, Honinbo, Meijin, Judan, Gosei, Oza and Tengen.
The last time a player accomplished this fact was Cho Chikun back in 1987. Incidently, also by taking the (26th) Judan title.


AlphaGo


After an initial lead by Lee SeDol in the final game of the match against AlphaGo the computer fights back to eventually win by resignation, being in the lead by about 2.5 points at that point. This game concludes the match in which the computer prevailed by 4-1 over top-player Lee SeDol from Korea. See also: the complete match summary by Hajin Lee


Lee SeDol


Lee SeDol takes one back in the match against AlphaGo. See also: Michael Redmond's analysis


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internationalWorld

15th LG Cup 2011
11th Nongshim Cup 2010Match Go
23rd Fujitsu Cup 2010
2nd BC Card Cup 2010
8th Chun-Lan Cup 2010
8th Female Cup 2010Female Go
11th Agon Cup 2009Lightning Go
14th Samsung Cup 2009
13th Tianyuan 2009
21st Asian TV Cup 2009Lightning Go
6th Ing Cup 2008
4th World Oza Cup 2008
3rd JP-Morgan Cup 2007
5th Asia Cup 2006Match Go
1st Kangwon Cup 2006Match Go
1st IGS World Rapid 2005Lightning Go

japanJapan

74th Honinbo 2019
57th Judan 2019
43rd Kisei 2019
44th Tengen 2018
66th Oza 2018
43rd Meijin 2018
43rd Gosei 2018
22nd Agon Cup 2015Lightning Go
34th Honinbo 2015Female Go
24th Ryu-sei Cup 2015Lightning Go
40th Shinjin-O 2015
62nd NHK 2015Lightning Go
18th Kisei 2015Female Go
27th Meijin 2015Female Go
21st Pro Pair-Go 2015Pair Go

koreaKorea

11th Maxim Cup 2010
15th LG Cup 2010
5th Sibdang Cup 2010
38th Myungin 2010
6th Korean Price 2010
15th Guksu 2010Female Go
11th Myungin 2010Female Go
53rd Guksu 2010
 Korean League 2010Match Go
14th Chunwon 2009
28th KBS Wang 2009Lightning Go
5th Electronic Cup 2008
12th SK New Pro 2008
18th BC Card Cup 2008
19th Kisung 2008
41st Wangwi 2007

chinaChina

22nd CCTV Cup 2010Lightning Go
4th Xinren 2010Female Go
23rd Mingren 2010
10th Ricoh Cup 2010
24th Tianyuan 2010
 Chinese Team 2010Match Go
11th Agon Cup 2009Lightning Go
6th Changqi 2009
14th NEC Cup 2009Lightning Go
16th Xinren 2009
2nd Quzhou 2008

taiwanTaiwan

17th ZhongHuan 2010
5th GuoShou 2009
3rd Aixin 2009
9th DongGang 2009
5th WangJia 2009
2nd Qisheng 2009
8th Tianyuan 2009
1st Licho 2007
1st Yayi 2007

Pair Go Pair Go
Match Go Match Go
Female Go Female Go
Lightning Go Lightning Go

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