Honinbo Shusaku vs. Gennan Inseki, 1846GoBase.org
Go, an addictive game Copyright © 1994-2022 Jan van der Steen
gobase.org

About this site
Guided tour
What's new?
Membership
Donating
Advertising
Sitemap

searching

Site search
Player search
Game search
Pattern search

studying

Your repository
Go articles
Go problems
Game gallery
Commented games
Internet Go schools
The rules of Go

browsing

Players
Tournaments
Joseki
Fuseki
Opening novelties
Pictures

reading

Go articles
Go stories
Go trivia
Go proverbs
History of Go
Go book previews
Go book reviews
Bibliography
external link
Go book suppliers

playing

Go associations
Go equipment
Internet Go
Mobile Go
Computer Go

services

SGF printing
SGF conversion
Go jargon dictionary
Japanese dictionary
Go World magazine

software

GoBase
IGS clients
SGF editors
SGF2misc

miscellaneous

9x9 collection
Contributors
Contributing

The external link marked
references point to
external web sites
and will open a new
browser window.

from the editor

daily problem

problem 1

black to play
++--

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

Kyo KagenYu Zhengqi


The moment white resigned Kyo Kagen was ahead by some 5-6 points in the 3rd game of the 60th Judan title match.
Maybe it was the unexpected win in the 2nd game but the result of this match, three straight wins, will surprise many. More excitement was generally expected. Anyway, the games were entertaining.


Kyo KagenYu Zhengqi


Already in the early stages of this game the AI prefered black. But at 171 black goes wrong, not decisively but most of the lead slips away. When black goes wrong again with 175 things seem beyond repair.


Iyama YutaIchiriki Ryo


Game 7 @ KataGo: Critical moment...
KataGo's evaluation graph

The critical moment in this game seems around 65. White has a few weak groups and needs ways to settle them. The AI engine KataGo does not agree with white's choices in this phase as the LizGoban graph below shows. The graph shows that at move 89 black is leading 0.5 point and the chance to carry home this lead is 56%.
A better way to settle? Let's see what the experts will find out once the analysis will reach us.


Iyama YutaIchiriki Ryo


Game 6 @ W126: To push or capture?
Diagram 1: To push or capture?
Game 6 @ W194: Group turns ko
Diagram 2: Group turns ko

To me the two key points in this game are diagram 1 and 2.

Black is using a sacrifice strategy of his marked stones to attack the large marked white group. In the game white pushed with A instead of capturing the black stones immediately.

At move 194 the whole group depends on the outcome of this ko. Does the saying hold: "big groups don't die"?


Iyama YutaIchiriki Ryo


Game 3 @ W168: Not enough for white
Diagram 1: Not enough for white
Game 3 @ B169: Keep it simple
Diagram 2: Keep it simple

The key moment in the third game seems around move 168 of white. With this move white decides to save the cutting stones in the center because following the alternative as in the first diagram seems to give black a win in points.

With 169 black could have compromised as in the second diagram. Both marked groups are captured, leaving a rather simple endgame with a slight margin for black. White probably will continue C (to remove the A, C, D cut), which enables black to take the big point at B.

However, both players like complications (for different reasons) so the game took a completely different course from here...


[advertisement]

external GameTop.com - Download Free PC Games

external Mahjong Solitaire: Free Online Mahjongg Games Kostenlos Mahjong Spielen Gratis Mahjong Spellen

upcoming pro events

[full schedule]
internationalWorld

14th Chun-Lan Cup 2022
22nd Agon Cup 2021Lightning Go
26th Samsung Cup 2021
23rd Nongshim Cup 2021Match Go
8th Globis Cup 2021
26th LG Cup 2021
7th Kuksu Mountains 2021
9th Ing Cup 2020
8th CCTV Cup 2020Match Go
31st Asian TV Cup 2019Lightning Go
9th Huanglongshi Cup 2019Female Go
4th MLily Cup 2019
1st Shinan Senior Cup 2019Match Go
4th Bailing Cup 2019
1st Tianfu Cup 2018

japanJapan

77th Honinbo 2022
60st Judan 2022
69th NHK 2022Lightning Go
46th Kisei 2022
1st Teikei Cup 2021
47th Tengen 2021
16th Wakagoi Cup 2021
28th Agon Cup 2021Lightning Go
40th Honinbo 2021Female Go
69th Oza 2021
46th Meijin 2021
6th Senko Cup 2021Female Go
46th Shinjin-O 2021
4th SGW Cup 2021
8th Aizu Cup 2021Female Go
46th Gosei 2021
24th Kisei 2021Female Go
26th Pro Pair-Go 2021Pair Go
29th Ryu-sei Cup 2020Lightning Go
32nd Meijin 2020Female Go
6th Grand Champion 2019

koreaKorea

22nd Maxim Cup 2021
4th Ryusei 2021
5th Female Kisung 2021Female Go
44th Myungin 2021
2nd Supreme Player 2021
26th Guksu 2021Female Go
9th Guksu Cup 2021
4th Crown Haitai Cup 2021
26th GS Caltex Cup 2020
 Korean League 2020Match Go
37th KBS Wang 2019Lightning Go
17th Female Myungin 2016Defunct tournament

chinaChina

22nd Agon Cup 2021Lightning Go
6th CCTV Cup 2021Lightning Go
16th Weifu Fangkai 2021
17th Changqi 2021
5th Qisheng 2021
12th Longxing 2021
25th Xinren 2021
35th Tianyuan 2021
8th Quzhou 2021
 Chinese A League 2020Match Go
2nd Female Mingren 2020Female Go
32nd Mingren 2019

taiwanTaiwan

13th haifeng 2021
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
Defunct Defunct tournament

site notes

The rules while using the website:

  1. Unless explicitly stated otherwise all of the website material is copyright and as such its use is restricted.
  2. Mirroring or reproduction of any material from this website is strictly prohibited.
  3. An account gives you access to your repository, the extended SGF game collection, the Go articles and the Problem Academy.