American Go E-Journal

The Power Report: Iyama defends Honinbo title; Nakamura Sumire records first wins, sets new records; Cho Sonjin wins Samsung seat

Thursday August 22, 2019

by John Power, Japan correspondent for the E-Journal

Iyama defends Honinbo title: The sixth game of the 74th Honinbo title match was held at the Hotel Hankyu Expo Park in Suita City, Osaka Prefecture, on July 3 and 4. Taking black, Iyama Yuta, otherwise known as Honinbo Monyu, forced the challenger, Kono Rin, to resign after 171 moves. Kono had tried to take the initiative by launching an attack in the opening, but it failed to come off, leaving him in a difficult position. Iyama then steadily increased his lead and dominated the game. In the end, Kono got into a losing capturing race, so he had no choice but to resign.

   When Iyama started out by losing the first two games of the match, he seemed in danger of having his swag of titles reduced even further. However, Kono failed to make the most of a favorable position in the third game, letting the titleholder pull off an upset. In retrospect, this may have been the key game, as it changed the flow of the series. Iyama’s play picked up and he ended up winning four games in a row. He has now won the Honinbo title for eight years in a row, which takes him ahead of Sakata Eio’s seven and leaves him just behind Cho Chikun’s ten and Takagawa Shukaku’s nine. This is his 56th title, which puts him in fourth place after Cho Chikun (74 at this point, but soon after 75), Sakata (64), and Kobayashi Koichi (60). Top-seven titles account for 45 of his total, which is a record (Cho’s top-seven tally is 42). Iyama still holds four of the top-seven titles, so he remains head and shoulders above his Japanese rivals.

  First prize is 28 million yen (about $254,000), down 2 million yen from last year.

Nakamura Sumire records first wins, sets new records: A fateful day came for Nakamura Sumire, Japan’s youngest professional ever, on July 8. In a game in Preliminary B of the 23rd Women’s Kisei, held at the Kansai headquarters of the Nihon Ki-in, she was matched against the veteran player Tanaka Chieko 4P (aged 67). Taking white, Sumire got into a tough position in the middle game, but her opponent blundered. Once she took the lead, she played with precision and secured a resignation after 146 moves. She was ten years four months old, making her the youngest player ever to win a professional game in Japan. The previous record of 11 years eight months was set by Fujisawa Rina.

   As usual, the press was out in full force. According to Go Weekly, there were 60 reporters from 25 media outlets. Sumire’s mother Miyuki commented that when she lost her first game, the atmosphere at the press conference after the game was like a wake, but this time everyone was cheerful, including Tanaka. The latter commented: “I was surprised how calmly she played, like an adult.” Sumire’s father, Shinya 9P, commented: “I was on tenterhooks throughout the game. I was happier than when winning one of my own games. No one recognizes you unless you win a game.” 

   Two days later, Sumire played a practice game with a new AI program–practice for both sides. The program is called AQZ, and is being developed by a group led by Yamaguchi Hiroshi in cooperation with the president of Globis University, Hori Yoshito. Their goal is to compete in an AI world championship to be held in August. Taking black, AQZ won the game. 

   On August 5, Sumire played another game in the Women’s Kisei tournament. Taking white, she beat Kim Hyon-jon 4P (aged 40) by resignation after 120 moves. Sumire came under attack in the opening and had to work hard to rescue a group, but when her opponent made a slack move, she counterattacked and quickly wrapped up the game. This win earned her a seat in the main section (best 16) of the tournament. She is the youngest player ever to reach the main section of a tournament. The previous record, 13 years eight months, was set by Fujisawa Rina. Sumire’s official record is now 2-1. During the summer holidays, she spent two weeks studying in Korea, but I have no details about this trip.

Cho Sonjin wins Samsung seat: The international qualifying tournament for the 2019 Samsung Cup was held in Seoul from June 30 to July 5. Forty-one players from Japan competed in the different sections of the tournament, but the only one to be successful was Cho Sonjin 9P, who defeated Ryu Shikun 9P, also from Japan, in the final round of the section for senior players. He will join Japan’s two seeded players, Iyama Yuta and Kyo Kagen, in the main tournament, which starts on August 30.

Tomorrow: Fujisawa wins Senko Cup; Kyo evens score in Gosei title match; Cho Chikun wins Masters Cup