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August 31st, 2010

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Council meeting minutes available

The minutes of the SAGA council meeting held on 19 July 2010 are now available.

Posted by Steve as SAGA at 11:01 PM, No Comments »

August 31st, 2010

Capturing Race notes

No eyes

If neither side has any eyes, then only the side with more outside liberties can win. The side with fewer outside liberties must hope for seki. The side with fewer outside liberties gets to add the shared liberties – 1.

capturingracenoeyes

In this example, black has 5 outside liberties, while white has only 2. However, white can add the 5 – 1 shared liberties, to give a total of 6. This means that white is winning the capturing race 6-5, and can safely tenuki (in other words, even if black plays first, white can still get a seki).

One eye vs no eye

In the situation where one group has one eye, and the other group has no eye, seki is not possible. In this situation, the group with the eye counts all the shared liberties.

capturingraceoneeyevsnoeye

In this example, white has the eye, and thus has 7 liberties. Black has 7 outside liberties. In this case, whoever moves first wins the capturing race.

Eye vs Eye

In the case of an eye vs an eye, the shared liberties belong to the side with the biggest eye. Very important: a one space eye, a two space eye, and a three space eye all count as equivalent size. Note also that if the eyes are differently sized, there can never be a seki.

There is also a set of counting rules for counting the additional liberties of large eyes. The rule is as follows:
1 space eye, 2 space eye, 3 space eye – no extra liberties
4 space eye – 1 extra liberty
5 space eye – 3 extra liberties
6 space eye – 6 extra liberties

capturingraceeyevseye1

In this example, black has 12 liberties (3 inside the eye, plus an additional 6 because it is a 6 space eye, as well as the 3 shared liberties, which belong to black because black has the bigger eye). White has 11 liberties (3 inside the eye, plus an additional 3 because it is a 5 space eye, as well as the 5 outside liberties). So if it is black’s turn, black can tenuki.

Posted by Chris Welsh as Lecture at 11:58 AM, 1 Comment »

August 31st, 2010

Game review of Ben vs Chris

Attached is a review of the 3rd quarter internet match between Ben Gale (3d) and Chris Welsh (1k). The game was reviewed by Steve (I don’t know his Chinese name). Steve is a Chinese 5d, and is the strongest amateur player in Beijing.

Ben Gale vs Chris Welsh

Posted by Chris Welsh as Game Reviews at 8:59 AM, 1 Comment »

August 25th, 2010

2010 Soweto Open: 12 September

The 2010 Soweto Open go tournament and AGM will take place at the Kopanong Hall Dobsonville,
Corner Luthuli and Steve Kgame Road (Dobsonville Main Road) on 12 September. Due to the short notice, this tournament will not be a qualifier for the SA Closed.

  • Registration: 09:00
  • Round 1: 09:30 – 11:00
  • Round 2: 11:15 – 12:45
  • Lunch and Soweto Go Club AGM: 13:00 – 14:00
  • Round 3: 14:00 – 15:30
  • Prizegiving: 16:00

Tournament fee: R10 (includes lunch)

Enquiries: Phone Welile Gogotshe at +27730530147 or email David Richfield at davidrichfield@gmail.com

Posted by daver as Announcements, Events, SAGA, Soweto, Tournaments at 7:05 PM, 3 Comments »

August 24th, 2010

4th Kim-In Cup International Senior Baduk Competition

Anyone interested in attending the following tournament should please contact David Richfield. You will need to be able to subsidise your own trip to Korea.

1. Organization: Korea baduk Association and Korea Amateur Baduk Association
2. Sponsor: GangJin City, Korea
3. Venue: GangJin City Gymnasium, Jeollanam-do, Korea
4. Tournament Schedule: Friday, 5 November to Monday, 8 November 2010
5. Events: 
-Men’s Team Tournament (4 player one team)
-Women’s Team Tournament (4 player one team)
-Individual Tournament (1~5 Dan)
6. Tournament condition:
-All players must be over the following
--Male – 50 years old (born before 31 December, 1960)
--Female – 30 years old (born before 31 December, 1980)
-5 round swiss system
-Even game, 6.5 points Dum (Komi), 25 minutes, overtime 30 second 3 times.
-The tournament will be conducted in accordance with The Korea Baduk Association (KBA) rules and regulations. Any Problem that arise will be arbitrated by referees.
-In case of tie score(2:2), the sum of age will be a priority.
7. KBA provides hotel, meals and domestic transportation for all players.
8. Awards
-The winner and second ranker of each event will be awarded the GangJin City celadon porcelain trophy.
-Up to top 8 place will be given the following prize. (money 50%+gift certificate 50%)

Posted by Steve as News, Tournaments at 8:54 PM, No Comments »

August 21st, 2010

Igolocal: Google Earth to find nearby Go players

I think this is a pretty awesome innovation, especially for SA where our Go players can be spread so thin. IgoLocal is a website where players indicate where they (and their go clubs) are based, and allows other Go players and potential players to make contact. I strongly encourage you to check it out and add yourself to the directory, even if you’re just starting out with Go, or even want to learn how to play.

Posted by Steve as Links at 2:27 PM, No Comments »

August 2nd, 2010

Victor wins 3rd quarter 2010 SAGA internet tournament

We again had a reasonably strong turn-out on Saturday, We need to encourage more mid-kyu players to take part. It was great to have Mareck join us, and bravely tackle opponents all at least 10 stones stronger. Ben again played from Korea, and Chris joined us from China. His result suggests the training is already paying dividends. A bit of humour was added by Victor only beating Ben by 1.5 points. He was foiled in his aim of a 0.5 point victory by Ben cunningly losing an extra point.
Congatulations to:
– Victor for winning the tournament.
– Dave Gale on winning group 2
– Sam and Chris on their upset results against the 2-dan players.
– Francois van Niekerk on his promotion to 7k.

Thanks to all who took part and we look forward to seeing you all at the 4th quarter tournament on 6 Nov.
The final results after 3 rounds were:
1. Victor Chow
2-4. Ben Gale, Sam Scott, Chris Welsh
5-7. Konrad Scheffler, , Andrew Davies, Lloyd Rubidge
8. David Richfield
9. David Gale
10. Francois van Niekerk
11. Alexander du Plessis
12. Burt Rabie

Posted by adavies as Rank Changes, Tournaments at 1:25 PM, No Comments »