Oza (shogi)
Ōza (王座) is one of the seven titles in Japanese professional shogi. The word literally means "king's seat", i.e., "throne". The tournament started in 1953 and was a non-title tournament up until 1982. The challenger for the title is determined through three preliminary rounds. The player that wins three games out of five in the championship match becomes the new Ōza title holder. [1]
Lifetime Ōza
"Lifetime Ōza" (名誉王座) is the title given to a player who won the championship five times in a row or ten times in total. Active players may qualify for this title, but it is only officially awarded upon their retirement or death.[2]
- Lifetime Ōza title holders
- Makoto Nakahara (won championship ten times when it was a non-title tournament)[3]
- Yoshiharu Habu[4]
Winners
From 1953 until 1982, the tournament was just regular tournament and not a major title match. From 1953 to 1969, two finalists would play a 3-game match to determine the overall winner; the 1st Oza match (1953), however, was only a single game. From 1970 to 1982, the winner of the previous year's tournament would play the winner of a qualifying tournament in a 3-game match.[5]
| No. | Year | Winner | Score | Opponent |
|---|---|---|---|---|
| 1 | 1953 | Yasuharu Ōyama | 1-0 | Yūzō Maruta |
| 2 | 1954 | Yasuharu Ōyama | 2-1 | Kōzō Masuda |
| 3 | 1955 | Yasuharu Ōyama | 2-1 | Renshō Nada |
| 4 | 1956 | Seiichi Kobori | 2-1 | Kazukiyo Takashima |
| 5 | 1957 | Shigeyuki Matsuda | 2-1 | Seiichi Kobori |
| 6 | 1958 | Masao Tsukuda | 2-1 | Tatsuya Futakami |
| 7 | 1959 | Yasuharu Ōyama | 2-0 | Michiyoshi Yamada |
| 8 | 1960 | Yūzō Maruta | 2-1 | Yasuharu Ōyama |
| 9 | 1961 | Sōetsu Honma | 2-0 | Hifumi Katō |
| 10 | 1962 | Hifumi Katō | 2-0 | Michihito Kumagai |
| 11 | 1963 | Renshō Nada | 2-1 | Hirobumi Sekizawa |
| 12 | 1964 | Yasuharu Ōyama | 2-0 | Hifumi Katō |
| 13 | 1965 | Yūzō Maruta | 2-0 | Kunio Naitō |
| 14 | 1966 | Yasuharu Ōyama | 2-0 | Yūzō Maruta |
| 15 | 1967 | Michiyoshi Yamada | 2-0 | Kunio Naitō |
| 16 | 1968 | Yasuharu Ōyama | 2-0 | Hifumi Katō |
| 17 | 1969 | Makoto Nakahara | 2-1 | Michio Ariyoshi |
| 18 | 1970 | Makoto Nakahara | 2-0 | Tatsuya Futakami |
| 19 | 1971 | Makoto Nakahara | 2-0 | Hifumi Katō |
| 20 | 1972 | Makoto Nakahara | 2-0 | Kunio Naitō |
| 21 | 1973 | Makoto Nakahara | 2-0 | Genichi Ōno |
| 22 | 1974 | Makoto Nakahara | 2-1 | Yasuharu Ōyama |
| 23 | 1975 | Kiyozumi Kiriyama | 2-0 | Makoto Nakahara |
| 24 | 1976 | Makoto Nakahara | 2-0 | Kiyozumi Kiriyama |
| 25 | 1977 | Makoto Nakahara | 2-0 | Nobuyuki Ōuchi |
| 26 | 1978 | Makoto Nakahara | 2-0 | Nobuyuki Ōuchi |
| 27 | 1979 | Makoto Nakahara | 2-0 | Nobuyuki Ōuchi |
| 28 | 1980 | Yasuharu Ōyama | 2-0 | Makoto Nakahara |
| 29 | 1981 | Yasuharu Ōyama | 2-1 | Osamu Katsuura |
| 30 | 1982 | Kunio Naitō | 2-0 | Yasuharu Ōyama |
For the 31st Oza Match (1983), the tournament was officially elevated to major title match status and starting with the 32nd Oza Match, the format switched to a best-of-five.
| No. | Year | Winner | Score | Opponent |
|---|---|---|---|---|
| 31 | 1983 | Makoto Nakahara | 2-1 | Kunio Naitō |
| 32 | 1984 | Makoto Nakahara | 3-2 | Hidemitsu Moriyasu |
| 33 | 1985 | Makoto Nakahara | 3-1 | Koji Tanigawa |
| 34 | 1986 | Makoto Nakahara | 3-0 | Kiyozumi Kiriyama |
| 35 | 1987 | Yasuaki Tsukada | 3-2 | Makoto Nakahara |
| 36 | 1988 | Makoto Nakahara | 3-0 | Yasuaki Tsukada |
| 37 | 1989 | Makoto Nakahara | 3-2 | Teruichi Aono |
| 38 | 1990 | Koji Tanigawa | 3-1 | Makoto Nakahara |
| 39 | 1991 | Bungo Fukusaki | 3-2 | Koji Tanigawa |
| 40 | 1992 | Yoshiharu Habu | 3-0 | Bungo Fukusaki |
| 41 | 1993 | Yoshiharu Habu | 3-1 | Koji Tanigawa |
| 42 | 1994 | Yoshiharu Habu | 3-0 | Koji Tanigawa |
| 43 | 1995 | Yoshiharu Habu | 3-0 | Keiji Mori |
| 44 | 1996 | Yoshiharu Habu | 3-0 | Akira Shima |
| 45 | 1997 | Yoshiharu Habu | 3-0 | Akira Shima |
| 46 | 1998 | Yoshiharu Habu | 3-2 | Koji Tanigawa |
| 47 | 1999 | Yoshiharu Habu | 3-1 | Tadahisa Maruyama |
| 48 | 2000 | Yoshiharu Habu | 3-2 | Takeshi Fujii |
| 49 | 2001 | Yoshiharu Habu | 3-1 | Toshiaki Kubo |
| 50 | 2002 | Yoshiharu Habu | 3-0 | Yasumitsu Satō |
| 51 | 2003 | Yoshiharu Habu | 3-2 | Akira Watanabe |
| 52 | 2004 | Yoshiharu Habu | 3-1 | Toshiyuki Moriuchi |
| 53 | 2005 | Yoshiharu Habu | 3-0 | Yasumitsu Satō |
| 54 | 2006 | Yoshiharu Habu | 3-0 | Yasumitsu Satō |
| 55 | 2007 | Yoshiharu Habu | 3-0 | Toshiaki Kubo |
| 56 | 2008 | Yoshiharu Habu | 3-0 | Kazuki Kimura |
| 57 | 2009 | Yoshiharu Habu | 3-0 | Takayuki Yamasaki |
| 58 | 2010 | Yoshiharu Habu | 3-0 | Takeshi Fujii |
| 59 | 2011 | Akira Watanabe | 3-0 | Yoshiharu Habu |
| 60 | 2012 | Yoshiharu Habu | 3-1 | Akira Watanabe |
| 61 | 2013 | Yoshiharu Habu | 3-2 | Taichi Nakamura |
| 62 | 2014 | Yoshiharu Habu | 3-2[6] | Masayuki Toyoshima |
| 63 | 2015 | Yoshiharu Habu | 3-2[7] | Amahiko Satō |
Records
- Most titles overall: Yoshiharu Habu, 23
- Most consecutive titles: Yoshiharu Habu, 19 in a row (1992-2010)
See also
References
- ↑ "Ōzasen" 王座戦 [Oza Title Match] (in Japanese). 日本将棋連盟 (Japan Shogi Association). Retrieved 27 June 2014.
- ↑ "Puro Kisen no Kitei ni Kansuru Goshitsumon - Q: Eisei Shōgō no Kitei wa Dō Natteiru no Deshōka." プロ棋戦の規定に関するご質問 — Q:永世称号の規定はどうなっているのでしょうか。 [Questions Regarding Professional Shogi — Q: What are the requirements for lifetime titles?] (in Japanese). 日本将棋連盟 (Japan Shogi Association).
- ↑ "Kishi Shokai: Nakahara Makoto" 棋士紹介: 中原誠 [Player Introduction: Makoto Nakahara] (in Japanese). 日本将棋連盟 (Japan Shogi Association). Retrieved 24 October 2014.
- ↑ "Kishi Shokai: Habu Yoshiharu" 棋士紹介: 羽生善治 [Player Introduction: Yoshiharu Habu] (in Japanese). 日本将棋連盟 (Japan Shogi Association). Retrieved 24 October 2014.
- ↑ Tanabe, Tadayuki (2006). Shōgi Hachi Daikisen Hiwa 将棋八大棋戦秘話 [Shogi, Untold Stories from 8 Major Title Matches] (in Japanese). Sedagaya, Tokyo: Kawade Shobo Shinsha Publishers, Inc. p. 169. ISBN 4309268706.
- ↑ Fukamatsu, Shinji (24 October 2014). "Habu Ōza ga Bōei Taitoru Kakutoku Kyūjūki ni Shogi Ōzasen" 羽生王座が防衛 タイトル獲得は90期に 将棋王座戦 [Habu Defends Oza Title for his 90th Major Title Overall]. Asahi Shimbun (in Japanese). Retrieved 29 October 2015.
- ↑ Fukamatsu, Shinji (26 October 2015). "Habu Ōza ga Bōei ni Seiko Shōgi Ōzasen, Yonnen Renzoku Nijūsankime" 羽生王座が防衛に成功 将棋王座戦, 4年連続23期目 [Habu Successfully Defends Oza Title for 4th Consecutive Year to Hold Title for 23rd Time Overall]. Asahi Shimbun (in Japanese). Retrieved 29 October 2015.
External links
- 61st Oza Match Official Site (in Japanese) by the Nihon Keizai Shimbun and the Japanese Shogi Association
- Shogi Kingdom (in Japanese) by Nihon Keizai Shimbun
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