by John Power, EJ Japan Correspondent
Ida Picks Up First Win In Honinbo Title Match:Faced with his first kadoban (a game that can lose a series) in the 69th Honinbo best-of-seven, Ida Atsushi 8P (right) fought strongly and killed a large group of his opponent, Iyama Yuta Honinbo. This keeps his chances of becoming the youngest tournament Honinbo alive, but Iyama will be doing his best to see that it’s just a consolation prize. The fourth game was played at the Olive Bay Hotel in the town of Saikai in Nagasaki Prefecture on June 18 and 19. Saikai is a ship-building center, and the Olive Bay Hotel is a luxury hotel built to accommodate customers. In the game, an invasion by Iyama, playing white, in the top right corner let Ida build strong thickness on the right side. Later, when Iyama invaded the bottom right as well, Ida countered very aggressively. With his 63rd move, he proclaimed his intention of killing White’s group. Iyama is usually an expert at rescuing weak groups, but not this time. He tried to turn the lost group into a sacrifice by aiming at a squeeze on the outside. When Ida foiled this, Iyama had to resign. The game lasted just 139 moves. This is Ida’s first win against Iyama. Avoiding the shut-out will be a big relief, while outfighting Iyama will give him confidence. Even so, the next game, scheduled for June 30 and July 1, will be another kadoban.
Kisei Leagues: Three games have been played in the 39th Kisei Leagues recently. The results are given below.
(June 12) (B League) Murakawa Daisuke (W) beat Cho Riyu8P by resig.
(June 19). (A League) Kono Rin 9P (B) beat Ichiriki Ryo 7P by resig.; (B Leagu
e) Yoda Norimoto 9P (W) beat Yuki Satoshi 9P by resig.
In the A League, Kono Rin 9P, on 2-0, has the provisional lead. In the B League, Murakawa Daisuke 7P, on the same score, has the provisional lead.
39th Meijin League: In a game played on June 19, Takao Shinji 9P (W) beat Murakawa Daisuke by resig. Takao (left) is now 3-3, so his chances of keeping his place have improved. Murakawa drops to 1-5, so he is close to losing his place. Yamashita Keigo 9P, on 6-0, is two points clear of the field.
statistics to detect cheating in chess,” writes John Pinkerton. “It covers many related topics of interest to go players such as rating inflation, comparing players of different generations, the statistics of move quality, and computational complexity theory. One interesting statistic is that players make 60 percent to 90 percent more errors when half a pawn ahead or behind compared to when the game is even. It’s believed to be a cognitive effect, not the result of high-risk/high-reward play, because it’s seen in both the player ahead and the player behind.” Graphic courtesy Chess Life; cover photography by Luke Copping
