Tag: computer shogi

  • Shogi 2012 in Review

    By Galo S Mirth

    2012 was a transitional year for modern shogi. The established title holders still dominated the major seven title matches, but the conversation around the game was also being reshaped by computer shogi, especially the early Denou-sen events.

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  • Shogi 2008 in Review

    By Galo S Mirth

    For Japanese professional shogi, 2008 is remembered for two things above all: Yoshiharu Habu regaining the Meijin title (and securing the 19th lifetime Meijin qualification), and Akira Watanabe producing one of the most dramatic comebacks in modern title match history to defend the Ryuo crown.

    A shogi board with pieces and komadai.
    Shogi board, pieces, and komadai. Source: Wikimedia Commons, File:Shogi_board_pieces_and_komadai.jpg. Author: Oliver Orschiedt. License: CC BY-SA 3.0.

    1. The biggest story: the 21st Ryuo match and Watanabe’s comeback

    The 21st Ryuo (2008 season) became famous for both its international setting and its reversal of fortune. Game 1 was played in Paris, and the title match itself turned into a rare “from 0-3 down” comeback: Ryuo Akira Watanabe lost the first three games to challenger (and Meijin) Yoshiharu Habu, then won four straight to take the match 4-3. With his 5th consecutive Ryuo defense, Watanabe also obtained the qualification for lifetime Ryuo (eisei Ryuo).

    • Ryuo match result: Watanabe 4-3 Habu (after trailing 0-3).
    • Notable detail: Game 1 was held in Paris.

    2. Major title matches and champions (2008 season)

    Several of the year’s biggest matches centered on Habu, who appeared repeatedly in title fights while also reclaiming Meijin. Here are a few key results from the major titles that concluded during the 2008 season.

    • Meijin: Yoshiharu Habu defeated Toshiyuki Moriuchi 4-2 to take the Meijin title (and obtained the 19th lifetime Meijin qualification).
    • Ryuo: Akira Watanabe defended against Yoshiharu Habu 4-3.
    • O-i (Oi): Koichi Fukaura defended against Yoshiharu Habu 4-3.
    • Oza: Yoshiharu Habu defended against Kazuki Kimura 3-0.
    • Kisei: Yoshiharu Habu took the title from Yasumitsu Sato 3-2.

    3. Computer shogi: Gekisashi wins the World Computer Shogi Championship

    In computer shogi, the World Computer Shogi Championship (WCSC) continued to be a major annual benchmark. The 18th tournament (2008) was won by Gekisashi (激指), with Tanase Shogi (棚瀬将棋) in second and Bonanza in third.

    Sources (Japanese)

  • Shogi 2006 in Review

    By Galo S Mirth

    2006 was a year of familiar giants and a few clear signals of what would come next. Toshiyuki Moriuchi kept the Meijin crown, Yoshiharu Habu continued to pile up long-running title streaks, Yasuhiro Sato (Yasumitsu) collected trophies across multiple fronts, and Akira Watanabe’s Ryuo reign continued.

    A shogi board with pieces and komadai (piece stands) during a game.
    Shogi board, pieces, and komadai. Source: Wikimedia Commons, File:Shogi board pieces and komadai.jpg. Author: Oliver Orschiedt. License: CC BY-SA 3.0.

    1. The major title matches (2006 season)

    The seven major titles in the 2006 shogi season (2006年度) ended with four champions: Moriuchi, Habu, Sato, and Watanabe.

    • Meijin (第64期名人戦): Toshiyuki Moriuchi defended vs Koji Tanigawa, 4-2.
    • Kisei (第77期棋聖戦): Yasuhiro Sato defended vs Daisuke Suzuki, 3-0.
    • O-i (第47期王位戦): Yoshiharu Habu defended vs Yasuhiro Sato, 4-2.
    • Oza (第54期王座戦): Yoshiharu Habu defended vs Yasuhiro Sato, 3-0.
    • Ryuo (第19期竜王戦): Akira Watanabe defended vs Yasuhiro Sato, 4-3.
    • Osho (第56期王将戦): Yoshiharu Habu defended vs Yasuhiro Sato, 4-3.
    • Kio (第32期棋王戦): Yasuhiro Sato took the title from Toshiyuki Moriuchi, 3-2.

    2. Other big tournaments and annual awards

    • Asahi Open (第24回朝日オープン将棋選手権): Habu won the event again, defeating Takeshi Fujii in the final.
    • JT Shogi Japan Series (第27回): Sato won the title.
    • NHK Cup (第56回): Sato won his first NHK Cup title.

    In the season awards (第34回将棋大賞), Sato was named Most Outstanding Player (最優秀棋士賞), with other major awards going to Habu (優秀棋士賞), Watanabe (敢闘賞), and Tetsuro Itodani (新人賞).

    3. A rising wave: Itodani and Watanabe’s momentum

    One headline for the next generation was Tetsuro Itodani winning the 37th Shinjin-o (新人王戦) final. Another was Akira Watanabe’s league result: he earned promotion to B1 with a perfect 10-0 in B2 (B級2組) in the 65th Jun’i-sen season.

    4. Computer shogi enters a new phase: Bonanza’s shock

    In May 2006, the engine Bonanza entered the World Computer Shogi Championship for the first time and won immediately, a result that helped push computer shogi into the center of public conversation. Its author, Kunihito Hoki, later presented details of the approach at a programming workshop in November 2006.

    5. Women’s shogi highlights

    • Women’s Osho (第28期女流王将戦): Ryoko Chiba defended the title, 3-2 vs Hiroe Nakai.
    • Women’s O-i (第17期女流王位戦): Ichiyo Shimizu defended, 3-1 vs Yukio Ishibashi.
    • Kurashiki Toka (第14期倉敷藤花戦): Haruko Saita took the title from Ichiyo Shimizu, 2-1.

    Sources (Japanese)

    • Japanese Wikipedia: 「2006年度の将棋界」(oldid 106888709) https://ja.wikipedia.org/wiki/2006%E5%B9%B4%E5%BA%A6%E3%81%AE%E5%B0%86%E6%A3%8B%E7%95%8C?oldid=106888709
    • Japanese Wikipedia: 「Bonanza」(oldid 106839765) https://ja.wikipedia.org/wiki/Bonanza?oldid=106839765