American Go E-Journal

The Power Report: Murakawa takes Judan title; Ke Jie wins new tournament; Takao wins 1,000 games

Tuesday May 7, 2019

by John Power, Japan correspondent for the E-Journal

Murakawa takes Judan title:
The third game of the 57th Judan title match was held at the Kuroyon Royal Hotel in Omachi City, Nagano Prefecture, on April 11. In the second game (March 29), Murakawa had finally put an end to a losing streak of 13 games against Iyama, but the following week Iyama had reasserted his supremacy with a win in the Meijin League (details in our last report), so this was an important game for Murakawa. Early in the game, Murakawa made an oversight, letting Iyama take the lead in territory. However, Iyama also went wrong, making a forcing exchange based on an oversight. He then played aggressively, but for once his policy of always playing the strongest move backfired. The above-mentioned dubious exchange handicapped him in a large-scale fight that broke out, so he had to resign after 151 moves. This is only the second time Murakawa has taken the lead in a title match with Iyama.
The fourth game was played on April 18. Taking white, Murakawa won by resignation after 226 moves, so he won his first Judan title and his second top-seven title (he won the 62nd Oza title in 2014, beating Iyama 3-2). This game was played at the Kansai headquarters of the Nihon Ki-in in Osaka on March 19. There was an interesting start to the game: Iyama played his first move on the 3-3 point and Murakawa immediately did the same in the opposite corner. That did not lead to a territorial contest, however, as the game was marked by continuous fighting. It featured an unresolved ko fight in the opening, that is, a potential ko that neither side could start until they were sure of their ko threats. Murakawa eventually started it on move 100 and ignored Iyama’s ko threat. After hectic middle-game fighting, the outcome was decided by a much bigger ko fight; it was a big white group at stake, but White had good ko threats, so he also won this fight. Black’s compensation was inadequate, so Iyama resigned. Murakawa had turned his losing streak into a winning streak.  “Before when I won a title,” Murakawa said, “I was lazy after that, so this time I’m going to be serious and study to get stronger.” The Judan prize is 7,000,000 yen (about $63,000). It is the last of the top seven open titles. (It used to be ranked fourth when the prize money was 15,000,000 yen. It was reduced as of the 51st term.)
This loss leaves Iyama with “just” four titles: Kisei, Honinbo, Oza, and Tengen. It also puts a third simultaneous grand slam out of reach for some time. Incidentally, this was the last title match of the Heisei era, which yielded to the Reiwa era on May 1.

Ke Jie wins new tournament: The first Japan-China-Korea Ryusei tournament was held in the Ryusei Studio, located in the basement of the Nihon Ki-in, from April 11 to 13. This is where the Go and Shogi Channel, which sponsors the Ryusei tournament, makes many of its go programs. The new tournament is for the holders of the Ryusei titles in the above-mentioned three countries and follows the NHK format (30 seconds per move plus ten minutes thinking time to be used in one-minute units) and is an irregular knock-out. Previously it was the China-Japan Ryusei Play-off, but recently a Korean Ryusei tournament was also founded, so it has become a three-way play-off. The tournament started well for Japan, with Ichiriki Ryo 8P defeating Ke Jie 9P of China, who is one of the world’s top two, but Ke survived the play-off with Kim Jiseok 9P of Korea and took revenge on Ichiriki in the final. The tournament proceeded as follows.
Round 1 (April 11). Ichiriki (W) beat Ke by resig.
Round 2 (April 12). Ke (W) beat Kim Jiseok 9P (Korea) by resig.
Round 3 (April 13). Ke (W) beat Ichiriki by resig.
It’s hard for a knock-out among three players to be fair. The players in the first game get two chances, but the player seeded into the second game gets no second chance if he loses.

Takao wins 1,000 games: Takao Shinji 9P scored his 1,000th win on April 18 when he beat Onishi Kenya 3P in Preliminary A of the 75th Honinbo tournament (Takao had white and won by resig.). He is the 26th player to reach this mark. He has 468 losses, two jigo and one no-contest, for a winning record of 67.9%

Tomorrow: Shin Minjun wins 6th Globis Cup; China starts well in 9th Huanglongshi Cup; Nakamura Sumire makes pro debut; Gosei challenger: Ichiriki or Hane

Get Involved!

Monday May 6, 2019

agalogoWe here at the American Go Association do a lot of work for our members. We love doing it and we want to do more for you. We need your help. The AGA is looking for some good folks to help us out. There are a number of positions that we are currently looking for. If you think you would fit one of these roles please send us an email to volunteer@usgo.org. We’ve got a full list of open positions on our new Volunteer page. Here are two of the positions we’re actively looking for:

AGA Treasurer

Looking for someone with a minimum 2-3 years Accounting/CPA experience. Will assist the organization in day-to-day operations with members and chapters for payment issues. Person will help run reports for various administrators for operations activities. Person will work on tax documents yearly. This position has a two year commitment.

AGAGD Developer
Looking for a developer to assist with AGAGD programming and upgrades. Software is written in Django and CSS. Needs to also know some PHP and MYSQL for integration. Knowledge of docker/containers helpful.

Categories: Go Classified,Main Page
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Hats on, as Justin Teng sweeps NGC Cinco de Mayo

Sunday May 5, 2019

Twenty six players turned out for the Cinco de Mayo/May the 4th Be With You Tournament at the National Go Center on2019.05.04 NGC cinco de mayo Saturday. Sombrero winners were: High Dan – Justin Teng (6D) 4-0; Low Dan – Raymond Hong (3D) 3-1 (Raymond’s first visit to the NGC, a great showing); Single Digit Kyu – Chizuko Sento (6K) 4-0 (Chizuko was also a winner the night before at Pair Go/Paella night); Double Digit Kyu – Betsy Small (13K) 3-1.

The next tournament at the NGC will be the traditional Congress Tune-up in June, and Pair Go/Paella with Chris Garlock’s delicious paella will resume in September.

– report by Gurujeet Khalsa; photo by Jeff Fitzgerald

Lake Mendota now ice free; time to register for U.S. Go Congress

Saturday May 4, 2019

Spring has arrived in Madison, Wisconsin, and thoughts turn to …go, reports 2019 U.S. Go Congress Director Dave Weimer. 2019.05.04 Madison-springtime“Chairs are out on the lake-side terrace next to the site of the 2019 U.S. Go Congress, ready for go players to relax after their games,” Weimer tells the EJ. “Be sure to register during May to pay the early registration fee and reserve a ticket for the break day excursion to see the Milwaukee Brewers.” Click here for details.

photo by Dave Weimer

Andy Liu and Mingjiu Jiang win 4th MLILY Cup Qualifier

Thursday May 2, 2019

In a 4-person double elimination, 3-round online tournament last weekend, Andy Liu and Mingjiu Jiang prevailed to become the North American representatives to the 4th MLILY Cup. The other players were Huiren Yang and Eric Lui.
– Jeff Shaevel, TD

Round 4 of the Transatlantic Team Championship this Sunday

Thursday May 2, 2019

Eric Lui 1P is challenging Mateusz Surma, who has already defeated three AGA players, in the 4th round of the Transatlantic Professional Go Team Championship. The game will be played on KGS and live broadcast on Twitch on May 5 (Sunday), from 14:00 US Eastern Time. The live-streaming commentator will be Ali Jabarin 2P, one of the EGF team players, with Stephen Hu (a.k.a xhu) as a host.

Nominations open for 2019 AGA Board elections

Thursday May 2, 2019

This year three American Go Association (AGA) regional Board of Director seats open for the Eastern, Western, Central regions. The current terms of office expire this September. If you know of someone who you believe would offer guidance and service to the AGA consider making a nomination. Nominations, including self-nominations may be made by full members for the region in which the member resides and must be received by June 15, 2019. Nominations and questions must be emailed to elections@usgo.org. Click here for complete election information and qualifications.

New AGA Chapters for April 2019

Wednesday May 1, 2019

The AGA is regularly asked for new chapters around the country. These are the newly registered chapters from April 2019:

Northeast Arkansas Go Club – Saturdays 1:30 – 4:00, Craighead County Jonesboro Public Library, 315 W Oak, Ave, Jonesboro, AR – Check the Facebook page for up to date information!

 

Chapters can always update their current chapter through the AGA Membership Manager if they have changed.

Categories: AGA Chapters,Main Page
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Elwyn Berlekamp, game theorist and coding pioneer, dies at 78

Tuesday April 23, 2019

Elwyn Berlekamp, a UC Berkeley mathematician and game theorist whose error-correcting codes allowed spacecraft from 2019.04.23-berlekamp-games3-750Voyager to the Hubble Space Telescope to send accurate, detailed and beautiful images back to Earth, died April 9 at his home in Piedmont, California, from complications of pulmonary fibrosis.

A professor emeritus of mathematics and of electrical engineering and computer sciences, Berlekamp was 78.
One of his passions was the Asian game of Go, which he analyzed in the book Mathematical Go — one of the rare books on Go to be translated from English into Japanese, rather than vice versa. He focused on Go’s endgame, said mathematician and colleague David Eisenbud, and once challenged a top Japanese Go master to a series of endgames selected by Berlekamp. He beat the Go master in seven straight games, playing both sides of the board — white and black. “It was mathematics against intuition, and mathematics won,” said Eisenbud, director of the Mathematical Sciences Research Institute (MSRI). “It was an impressive demonstration of which he was very proud.”
– excerpted from Berkeley News; read more about Berlekamp here.
photo: Berlekamp playing the game Amazons with Georg Menz in 2015. Menz was that year’s Berlekamp Postdoctoral Fellow at MSRI. (Photo courtesy of David Eisenbud)

Mateusz Surma defeats William Shi, notching third win for EGF team

Sunday April 21, 2019

Mateusz Surma seems unstoppable. In the third round of the Transatlantic Professional Go Team Championship, played on April 21 on KGS, Surma defeated AGA pro William Shi, extending his winning streak to three games. Surma defeated Calvin Sun 1P in the second round and Andy Liu 1P in the first round.2019.04.21_Arizona Go Club Pizza party 3
The critical fight in the game with Shi began in the opening on the lower side, as Surma (white) attacked Shi’s weak group in the lower-left corner. Black’ move 51, an attachment at H3, was an intuitive shape point, but a better choice would have been to attach on the other side at K3. This mistake created a weak and heavy black group in the center. White capitalized on attacking this group, and black was unable to recover.
The April 14 game with Sun started with a modern joseki in the upper right corner. Surma (black) built thickness towards the center, while Sun claimed some territory. As Sun moved to the lower side to reduce Surma’s influence, Surma started a complicated fight in the lower-left corner. The local fight spread quickly into the center. Surma used his thickness on the right side to attack white’s center groups. With two groups weak and floating, Sun couldn’t hold the territorial balance. He attempted to catch up, but in the process, lost a group and was forced to resign.

In the next round, Eric Lui will attempt to snap Surma’s winning streak; the game is set for May 5, starting at 14:00 US Eastern Time. The game will be played on KGS and live-streamed on Twitch.
photo: Round 1 watch party at the Arizona Go Club; photo courtesy William Gundberg
Categories: Europe,Main Page
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