By Galo S Mirth

Shogi in 2004 was a year of shifting generations. Toshiyuki Moriuchi took the Meijin title back from Yoshiharu Habu, but the headline story at year’s end was a new name at the very top: Akira Watanabe captured the Ryūō crown for the first time.
Below is a compact, source-backed tour of the year’s biggest title matches and several other notable results (including women’s titles). The dates in the Japanese sources are written in “2004年度” terms (roughly April 2004 to March 2005), but the main title series listed here were played across 2004.
1. Major title matches (2004)
- 62nd Meijin (第62期名人戦): Toshiyuki Moriuchi (森内俊之) defeated Meijin Yoshiharu Habu (羽生善治) 4-2 and became Meijin again (2nd time overall).
- 75th Kisei (第75期棋聖戦): Yasumitsu Satō (佐藤康光) defended the Kisei title against Moriuchi 3-0.
- 45th Ōi (第45期王位戦): Habu won the Ōi title, defeating Kōji Tanigawa (谷川浩司) 4-1.
- 52nd Ōza (第52期王座戦): Habu defended the Ōza title against Moriuchi 3-1 (continuing his long Ōza run).
- 17th Ryūō (第17期竜王戦): Akira Watanabe (渡辺明) defeated Ryūō Moriuchi 4-3 to win his first major title.
Even from just these results, the year’s narrative is clear: Moriuchi rose to the top with the Meijin, Habu remained a constant force (Ōi and Ōza), and Watanabe’s Ryūō breakthrough opened a new chapter.
Other notable tournament results
- 22nd Asahi Open Shogi Championship (第22回朝日オープン将棋選手権): Habu won the tournament (final held May 25, 2004) over Kōichi Fukaura (深浦康市).
- 12th Ginga-sen (第12期銀河戦): Habu won again, defeating Tanigawa in the final (September 25, 2004).
- 25th JT Shogi Japan Series (第25回JT将棋日本シリーズ): Yasumitsu Satō won (final November 28, 2004) over Toshiaki Kubo (久保利明).
- 35th Shinjin-Ō (第35期新人王戦): Takayuki Yamazaki (山崎隆之) won (final November 4, 2004) over Shinya Satō (佐藤紳哉).
Women’s shogi highlights (selected)
- 26th Women’s Ōshō (第26期女流王将): Hiroe Nakai (中井広恵) defended 3-1 against Yukio Ishibashi (石橋幸緒).
- 15th Women’s Ōi (第15期女流王位): Ichiyo Shimizu (清水市代) defended 3-0 against Rieko Yanai (矢内理絵子).
- 12th Kurashiki Tōka (第12期倉敷藤花): Ichiyo Shimizu took the title from Nakai 2-1.
What to remember about 2004
- Moriuchi’s spring resurgence: winning the Meijin match against Habu set the tone for the year’s title picture.
- Habu’s continuing dominance: even while losing Meijin, he still captured or defended major crowns and won big open events.
- Watanabe’s arrival: the 17th Ryūō win (4-3) was a true turning point, introducing a new future long-term titleholder.
Sources (Japanese)
- Wikipedia (Japanese): 「2004年度の将棋界」 (oldid=106888681) https://ja.wikipedia.org/wiki/2004%E5%B9%B4%E5%BA%A6%E3%81%AE%E5%B0%86%E6%A3%8B%E7%95%8C?oldid=106888681
- Wikipedia (Japanese): 「第17期竜王戦」 (oldid=99511025) https://ja.wikipedia.org/wiki/%E7%AC%AC17%E6%9C%9F%E7%AB%9C%E7%8E%8B%E6%88%A6?oldid=99511025
- Wikipedia (Japanese): 「第45期王位戦」 (oldid=98237058) https://ja.wikipedia.org/wiki/%E7%AC%AC45%E6%9C%9F%E7%8E%8B%E4%BD%8D%E6%88%A6?oldid=98237058
- Wikipedia (Japanese): 「第75期棋聖戦 (将棋)」 (oldid=98238305) https://ja.wikipedia.org/wiki/%E7%AC%AC75%E6%9C%9F%E6%A3%8B%E8%81%96%E6%88%A6_(%E5%B0%86%E6%A3%8B)?oldid=98238305
