American Go E-Journal

Updates: Number of Legal 18×18 Go Positions Computed; Latest XKCD Go Comic

Tuesday March 17, 2015

Number of Legal 18×18 Go Positions Computed; 19×19 On The Horizon: “It took about 50,000 CPU hours and 4PB of disk IO, but now we know the exact number of legal 18×18 Go positions,” johntromp wrote in a 2015.03.14_go-boardrecent post on slashdot. “Seeking computing power for the ultimate 19×19 count,” the post continues. “Thanks to the Chinese 2015.03.14_xkcd-comicRemainder Theorem, the work of computing L(19,19) can be split up into 9 jobs that each compute 64 bits of the 566-bit result. Allowing for some redundancy, we need from 10 to 13 servers, each with at least 8 cores, 512GB RAM, and ample disk space (10-15TB), running for about 5-9 months.”
Thanks to Steve Colburn for passing this along.

Latest XKCD Go Comic: In a possibly related development, here’s the latest go comic from xkcd, “A webcomic of romance, sarcasm, math, and language.”

Categories: U.S./North America
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The Power Report: China Beats Japan in Agon-Kiriyama Play-off

Monday March 16, 2015

John Power, Japan Correspondent2015.03.16_Ke Jie

China Beats Japan in Agon-Kiriyama Play-off: The 16th Agon Kiriyama Cup Japan-China Play-off was held at the Kyoto headquarters of the Agon sect of Buddhism on March 14. Representing China, the 17-year old Ke Jie (right), winner of the Chinese version of this title, beat Iyama Yuta of Japan, so China won this title for the 12th time in a row. Holding white, Ke secured a resignation after 146 moves. Iyama seems to be in the worst slump of his career. Besides this defeat, he lost the two title matches he played at the end of last year and he has just lost three games in a row in the Kisei title match. The seventh Kisei game is going to be extremely important for him.

Categories: Europe
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EuroGoTV News: Hungarian Schoolkids Championship; Trigantius; In-seong’s Spring Go Camp

Monday March 16, 2015

Hungarian Schoolkids Championship: The Hungarian Schoolkids Championship, a class C tournament, played on 3/7/2015 in 2015.03.16_Dominik BovizBudapest, Hungary, was won by Dominik Boviz 4d (photo), second came Viktor Toth 13k and third was Barnabas Kollner 8k. Result table.

Trigantius: The Trigantius, a class A tournament, played on 3/7/2015 in Cambridge, United Kingdom, was won by Charles Hibbert 3d, second came Andrew Simons 4d ( photo ) and third was Alex Rix 3d. Result table.

In-seong’s Spring Go Camp: Set for April 16-19 near Freiburg, Germany. Info/registration here.

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AGA Chapters Rewards Program Off to Fast Start

Sunday March 15, 2015

The Manhattan Go Club and Seattle Go Center top the first month of the new AGA Chapter Rewards program, earning 150,000 and 125,000 points, respectively.  AGA chapters earn points when they get new or renewing members or when their members play rated games. Small and medium clubs get an extra multiplier to earn points faster. “We got off to a great start in January with new and renewing memberships” says Rewards Coordinator Gurujeet Khalsa. Seventy one chapters earned a total of 2,412,500 points, “almost $2,500 that chapters can get reimbursement for expenses related to go promotion.” Click here to see chapter-by-chapter results for January, and details on how points are calculated. Activity by members unaffiliated with a chapter still earn points in an AGA pool (see instructions here on how to affiliate with a chapter). To redeem points, take a picture of a receipt with a smartphone and email it to rewards@usgo.org. Put in a one line description of what the go promotional activity was (e.g. “Advertisement for Cherry Blossom tournament”). Also include the chapter name and the name and address for reimbursement. Reimbursement is to the person listed as the chapter organizer or to a club account with the chapter name. Address any questions to rewards@usgo.org.

 

Categories: U.S./North America
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Mark Lee Wins 2015 SoCal Go Championship

Saturday March 14, 2015

Former Korean insei Mark Lee took home the $700 first-place prize at the 2015 Southern California Go Championship, held the weekend of February 28-March 1 in 2015.03.14_SoCal-winnerMonterey Park, California. Seventy two players from Southern California and as far away as the San Francisco Bay area, Arizona, Oregon and Atlanta, Georgia participated in the tournament, which featured a total prize purse of $3,000 and was organized and directed by Kevin Chao. Thanks to sponsorship by the World Journal and American Asia Culture Exchange Association, the event took place at the spacious headquarters of the Los Angeles division of the World Journal (http://www.worldjournal.com/page-about_us-e/).

Winner’s report:
2015.03.14_SoCal-venue
Open Section: 1st place Mark Lee (5-0), 2nd place Danny Ko (4-1), 3rd place Youwhan Kim (4-1), 4th place Qipeng Luo (3-2), 5th place two-time defending champion Evan Cho (3-2).
Dan Section: 1st place Tyler Oyakawa (5-0), 2nd place Brandon Zhou (4-1), 3rd place AGA president Andy Okun (4-1), 4th place Ted Drange (4-1), 5th place Hanhua Li (4-1)
Upper Kyu Section: 1st place Suttiat Boonchuen (5-0), 2nd place Julie Burrall (4-1), 3rd place Aijun Song, 4th place Alfred Foung (4-1)
Mid Kyu Section: 1st place Ross Secrest (4-1), 2nd place John Bulcher (4-1), 3rd place Michal Lebl (4-1)
Lower Kyu Section: 1st place Dowson Yang (4-1), 2nd place Derek Su (3-2), 3rd place Vivie Truong (3-2)

Photos: (top right) James Guo, president of World Journal L.A., presents the first place trophy to Mark Lee; tournament playing venue. photo by Kevin Chao.

 

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The Power Report: Yamashita Draws Level in Kisei, Forcing Decisive Game 7; Xie Defends Women’s Meijin Title

Saturday March 14, 2015

by John Power, EJ Japan Correspondent2015.03.14_yamashita-39kisei

Yamashita Draws Level in Kisei, Forcing Decisive Game 7: The sixth game of the 39th Kisei title match was held at the Gyokushoen Arai inn in Izu City, Shizuoka Prefecture, on March 11 and 12. Taking black, Yamashita Keigo 9P (right) defeated Iyama Yuta 9P by resignation after 189 moves. Yamashita has now won three games in a row, so the title match goes down to the wire. The final game will be played on March 19 and 20.

Xie Defends Women’s Meijin Title: The second game of the 27th Women’s Meijin title match was played at Heian Jogaku University, a private women’s university in Kyoto also known as St. Agnes’ University, on 11 March. Xie Yimin, playing black, forced Suzuki Ayumi 6P to resign after 177 moves and so won this title for the eighth year in a row.

Categories: Japan
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Mateusz Surma & Ilya Shikshin Latest European Professionals

Saturday March 14, 2015

2015.03.14_surmaEurope’s newest professional go players are Mateusz Surma (left)  from Poland and Ilya Shikshin from Russia. Surma took first 2015.03.14_shikshinplace in the European Pro Qualification tournament, held March 6-8 in Pisa; Shiksin was second. They join Pavol Lisy and Ali Jabarin, who were the EGF’s first pros last year. Click here for details on the 2015 tournament, including links to some of the tournament games. The four EGF professionals are now qualified for the Grand Slam Tournament  in Berlin coming up April 3-6.
- Martin Stiassny, EGF President

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SRO for San Diego Go Club at Cherry Blossom Festival

Saturday March 14, 2015

San Diego Go Club members taught go to all interested and played exhibition games at the Tenth Annual Cherry Blossom Festival at the 2015.03.14_San Diego Cherry BlossomJapanese Friendship Garden in Balboa Park in San Diego on March 7 & 8. Thousands came out to the garden in 70 degree weather to see the bursting cherry blossoms on over 150 trees. A new $3,000,000 expansion of the garden, including a tea house next to a water fall and koi pond, is almost compete. Club volunteers were kept busy both days from 10 a.m. to 4 p.m., teaching go to eager parties ranging in age from 5 to 85. So many people were eager to learn go that they had to queue up for lessons. Many copies of “The Way to Go,” donated by the American Go Foundation, were given to those who showed interest in learning the game.
- report/photo by Ted Terpstra, President, San Diego Go Club. Photo: San Diego Go Club member Les Lanphear (right, in hat) explaining the intricacies of go; 

Categories: U.S./North America
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The Power Report (Part 2): Korea Makes Good Start In Women’s Tournament; Multiple Tie In Meijin League; Two Young Players Make NHK Cup Final; Promotions; Obituary: Okubo Ichigen

Monday March 9, 2015

by John Power, EJ Japan Correspondent

Korea Makes Good Start In Women’s Tournament: The first round of the 5th Huanglong Shuangdeng Cup World Women’s Team Championship was held in the city2015.03.08_Women’s Tournament of Meiyan in Jiangsu Province. It is run along similar lines to the Nong Shim Cup, but is split up into just two stages. Korea made a great start when O Jonga 2P won the first five games, but China won the final two games. The second round starts on April 5. Results are:
Game 1 (March 1). O Jonga (Korea) (W) beat Okuda Aya 3P (Japan) by resig.
Game 2 (March 2). O (B) beat Li He 5P (China) by resig.
Game 3 (March 3). O (W) beat Kibe Natsuki 1P (Japan) by resig.
Game 4 (March 4). O (W) beat Wang Chenxing 5P (China) by resig.
Game 5 (March 5). O (W) beat Fujisawa Rina 2P (Japan) by resig. (photo)
Game 6 (March 6). Song Ronghui 5P (China) beat O by 2.5 points.
Game 7 (March 7). Song (B) beat Hoshiai Shiho 1P (Japan) by resig.

Multiple Tie In Meijin League: One game was played in the 40th Meijin League on March 5. Yamashita Keigo 9P (B) beat Cho U 9P by 5.5 points. Yamashita improved his score to 2-1 and Cho dropped to 1-2. Yamashita shares the lead with four other players: Kono Rin, Takao Shinji, Murakawa Daisuke, and Ko Iso.

Two Young Players Make NHK Cup Final: Probably not many fans predicted the finalists in the 62nd NHK cup. In the first semifinal, telecast on March 1, the 17-year-old Ichiriki Ryo (W) defeated quadruple title-holder Iyama Yuta by resignation. Ichiriki played brilliantly in the middle-game fighting. Ichiriki made his debut in the NHK Cup this year and so far has won five games in a row, all with whit2015.03.08_Okubo Ichigene. In his last two games before the semifinal, he beat Kono Rin 9P and Takao Shinji 9P. The second semifinal was telecast on March 8. Playing black, the 20-year-old Ida Atsushi 8P (he turns 21 on March 15) beat Hane Naoki 9P by 6.5 points. In the third round, Ida eliminated the winner of the last three NHK cups, Yuki Satoshi 9P.

Promotions
To 9-dan: Hoshino Masaki (200 wins)
To 3-dan: Tsuruta Kazushi (40 wins)

Obituary: Okubo Ichigen
Okubo Ichigen 9P (right) died of pneumonia on March 2. Born on March 15, 1929, Okubo became a disciple of (Ms) Masubuchi Tatsuko 8P. He made 1-dan in 1944 and reached 9-dan in 1968. He retired in 1999. He won the rating tournament in 1948 and 1950. In 1965, he played in the final of the Oza tournament, but lost 0-2 to Handa Dogen. He won a number of Kido Prizes during his career. In the late 60s or early 70s, he made a long instruction tour of North America that was a bit of a landmark at the time.

Categories: Japan,John Power Report
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The Power Report (Part 1): Tuo Wins New Year’s Cup; Yamashita Catching Up In Kisei Title Match; Xie Wins First Game Of Women’s Meijin; Takao Makes Good Start In Judan Defense; China Wins Nong Shim Cup

Sunday March 8, 2015

by John Power, EJ Japan Correspondent2015.03.08_Tuo Jiaxi

Tuo Wins New Year’s Cup: The CCTV New Year’s Cup is a TV tournament held to celebrate the Chinese New Year. Last year it was upgraded to an international tournament, with a player each being invited from Japan and Korea. Last year it was won by Shi Yue 9P of China. Murakawa Daisuke 7P, who participated because the original invitee from Japan, Iyama Yuta, was too busy with the Kisei title match, took second place after scoring a win over Yi Sedol. Murakawa took part again this year. In the first round, he lost to Tuo Jiaxi 9P (right) of China by half a point. In this irregular knock-out tournament, Tuo advanced to the final, and Murakawa played Kim Jiseok 9P of Korea, who drew a bye in the first round. Kim won this game but lost to Tuo in the final. The prizes are 800,000, 400,000, and 200,000 yuan. Although he lost both games, Murakawa played well (his loss to Tuo was an upset late in the game), and a team in the Chinese B League made him an offer to play on their top board. Click here for Go Game Guru’s report, which includes game records.

Yamashita Catching Up In Kisei Title Match: The fifth game of the 39th Kisei title match was held at the Tokiwa Hotel in Kofu City, Yamanashi Prefecture, on February 25 and 26. Playing white, Yamashita won by resignation after 194 moves. This is his second wins after three losses, so he needs just one more win to even the score. The sixth game will be played on March 11 and 12. After both sides set up moyos, Yamashita made a shallow reduction of Black’s bottom moyo with White 16. Iyama made a sharp attack, so Yamashita plunged further into Black’s moyo. After White settled his group, the focus of the game became Black’s attempt to reduce White’s moyo. In the extensive fighting that followed, White broke into Black’s top right moyo and took the lead. Yamashita: ‘Last year I lost the match in the sixth game, so I hope to go further this year.’ Iyama: ‘I made lots of simple mistakes. I hope to play a little more solidly.’

Xie Wins First Game Of Women’s Meijin: The first game of the 27th Women’s Meijin best-of-five title match was held at the Osaka University of Commerce in Higashi (East) Osaka City on March 4. Xie Yimin made a good start in her quest for eight titles in a row; playing 2015.03.08_Ida Atsushiwhite, she beat Suzuki Ayumi 6P by resignation after 248 moves. The second game will be played on March 11.

Takao Makes Good Start In Judan Defense: The first game of the Mori Building 53rd Judan tournament title match, to give it its full name, was played at the same venue as the first Women’s Meijin game though on the following day. The defending champion Takao Shinji, playing white, beat Ida Atsushi 8P (left) by resignation after 198 moves. Takao seized the initiative and avoided letting Ida drag the game into the kind of confused fighting that is Ida’s forte. The second game will be played on March 26. This is the fifth year that the first games of the Women’s Meijin and Judan titles have been played in tandem

China Wins Nong Shim Cup: The third round of the Nong Shim Cup was held in Shanghai at the beginning of
this month. Lian Xiao, the fourth batter for China, finished off the opposition in the third game of this round, so Shi Yue of China didn’t have to play. At the start of the round, Iyama Yuta briefly raised Japan’s hopes with his second win, following his win at the end of the second round, but he fell to Kim Jiseok in his next game.
Results in this round:
Game 11 (March 3). Iyama Yuta 9P (Japan) (B) beat Mi Yuting 9P (China) by resig.
Game 12 (March 4). Kim Jiseok 9P (Korea) (B) beat Iyama by 4.5 points.
Game 13 (March 5). Lian Xiao 7P (China) (W) beat Kim by resig.

Tomorrow: Korea Makes Good Start In Women’s Tournament; Multiple Tie In Meijin League; Two Young Players Make NHK Cup Final; Promotions; Obituary: Okubo Ichigen

Categories: Japan,John Power Report
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