Kōzō Arimori
| Kōzō Arimori | |
|---|---|
| Native name | 有森浩三 |
| Born | February 13, 1963 |
| Hometown | Okayama, Japan |
| Career | |
| Achieved professional status | March 9, 1983 (aged 20) |
| Badge Number | 158 |
| Rank | 8-dan |
| Retired | May 15, 2025 (aged 62) |
| Teacher | Michio Ariyoshi (9-dan) |
| Career record | 544–539 (.502) |
| Websites | |
| JSA profile page | |
Kōzō Arimori (有森 浩三, Arimori Kōzō; February 13, 1963) is a Japanese retired professional shogi player who achieved the rank of 8-dan.
Early life, amateur shogi and apprenticeship
Arimori was born in Okayama, Okayama Prefecture on February 13, 1963.[1] As a junior high school student he won the 2nd Junior High School Student Meijin Tournament in 1977,[2] and that same year was accepted into the Japan Shogi Association's apprentice school at the rank of apprentice professional 5-kyū under the tutelage of shogi professional Michio Ariyoshi.[1] Arimori obtained the rank of apprentice professional 1-dan in 1979 and was awarded full professional status and the rank of 4-dan in March 1983.[3]
Shogi professional
In March 2007, Arimori declared his intention to the Japan Shogi Association to become a Free Class player as of April 2007.[4]
On April 1, 2025, the JSA announced Arimori had met the conditions for mandatory retirement for "Free Class" players and his retirement would become official upon completion of his final scheduled game of the 2025–2024 shogi season.[5] Arimori's retirement became official upon losing to Yūya Saitō on May 15, 2025, in a 38th Ryūō Group 6 game.[6] He finished his career with a record of 544 wins and 539 losses for a winning percentage of 0.502.[7]
Promotion history
The promotion history for Arimori is as follows:[3]
- 5-kyū: 1977
- 1-dan: 1979
- 4-dan: March 9, 1983
- 5-dan: August 26, 1986
- 6-dan: July 13, 1991
- 7-dan: September 7, 2000
- 8-dan: April 1, 2022
- Retirement: May 15, 2025
Awards and honors
Arimori received the JSA's "25 Years Service Award" in 2011 in recognition of being an active professional for twenty-five years.[8]
References
- ^ a b "Kishi Dētabēsu: Arimori Kōzō" 棋士データベース: 有森浩三 [Professional Shogi Player Database: Kōzō Arimori] (in Japanese). Japan Shogi Association. Retrieved January 22, 2020.
- ^ "Chūgakusei Shōgi Meijinsen Rekidai Yūshōsha Ichiran" 中学生将棋名人戦 歴代優勝者一覧 [Junior High School Student Meijin Tournament: List of Winners] (in Japanese). Japan Shogi Association. Retrieved January 22, 2020.
- ^ a b "Kishi Dētabēsu: Arimori Kōzō Shōdan Rireki" 棋士データベース: 有森浩三 昇段履歴 [Professional Shogi Player Database: Kōzō Arimori Promotion History] (in Japanese). Japan Shogi Association. Retrieved May 20, 2025.
- ^ "Nisenrokunendonai Intaikishitō" 2006年度内引退棋士等 [Players who retired, etc. during the 2006-2007 Shogi Year] (in Japanese). Japan Shogi Association. March 31, 2007. Retrieved January 22, 2020.
- ^ "Shōdan･Intai･Kyūjo Kishi no Oshirase" 昇段･引退･休場棋士のお知らせ [Player promotions, retirements and leaves of absence] (in Japanese). Japan Shogi Association. April 1, 2025. Retrieved May 20, 2025.
- ^ "Arimori Kōzō Hachidan ga Intai" 有森浩三八段が引退 [Kōzō Arimori 8-dan retires] (in Japanese). Japan Shogi Association. May 16, 2025. Retrieved May 20, 2025.
- ^ "Tsūsan Seiseki" 通算成績 [Career Records] (in Japanese). Japan Shogi Association. May 15, 2025. Archived from the original on May 16, 2025. Retrieved May 20, 2025.
- ^ "Kishi Dētabēsu: Arimori Kōzō Sonota Hyōshō" 棋士データベース: 有森浩三 その他表彰 [Professional Shogi Player Database: Kōzō Arimori Other Awards] (in Japanese). Japan Shogi Association. Retrieved January 22, 2020.
External links