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Ryōko Chiba (千葉 涼子 Chiba Ryōko, née 涼子碓井 Ryōko Usui, born April 21, 1980) is a Japanese women's professional shogi player ranked 4-dan. She is a two-time winner of the Women's Ōshō [ja] title.

Women's shogi professional

Chiba's (then known as Ryōko Usui) first appearance in a women's professional shogi major title match came in 1998 when she challenged Ichiyo Shimizu for the 6th Kurashiki Tōka Cup [ja]; Chiba lost the match 2 games to 1. That same year Chiba also challenged Shimizu for the 25th Women's Meijin title, but once again lost (3 games to 1).

In 1999 and 2000, Chiba yet again challenged Shimizu in a major title matches. She lost the 10th and 11th Women's Ōi [ja] title matches respectively by the scores of 3 games to 1 and 3 games to none. Later in 2000, Chiba won her first tournament as a women's professional when she defeated Hiroe Nakai 3 games to 1 to win the 5th Kajima Cup [ja]. Chiba and Nakai met once again the following year in the finals of the 6th Kajima Cup Tournament, but this time Nakai won 3 games to 1.

In 2002, Chiba challenged Nakai for the 29th Women's Meijin title and was leading the match 2 games to 1 after three games. Chiba was, however, unable to pick up the third win she needed to capture the title, and Nakai came back to win the match 3 games to 2. Chiba once again challenged for the Women's Meijin title in 2004, but lost the 31st Women's Meijin match to Shimizu 3 games to 1.

Chiba finally won her first women's professional shogi major title in June 2005 when she defeated Nakai 3 games to none to win the 27th Women's Ōshō [ja] title. The following year, Nakai once again challenged Chiba in the 28th Women's Ōshō title match, but this time it was Chiba coming back to win Games 4 and 5 to successfully defend her title 3 games to 2. Chiba defended her Women's Ōshō against Shimizu in 2007 and started well by winning Game 1, but Shimizu won the next three games to capture the 29th Women's Ōshō match 3 games to 1.

Promotion history

Chiba has been promoted as follows.

• Women's Professional Apprentice League: 1994
• 2-kyū: October 1, 1994
• 1-kyū: April 1, 1996
• 1-dan: October 21, 1996
• 2-dan: October 16, 1998
• 3-dan: April 25, 2002
• 4-dan: April 21, 2011

Note: All ranks are women's professional ranks.

Titles and other championships

Chiba has appeared in major title matches nine times and has won a total of two titles. In addition to major titles, Chiba has won one other shogi championship.

Major titles

Other championships

Note: Tournaments marked with an asterisk (*) are no longer held or currently suspended.

Awards and honors

Chiba received the Japan Shogi Association's "Women's Professional" Annual Shogi Award for the April 2005 – March 2006 shogi year.

Personal life

Chiba's husband, Sakio Chiba is also a shogi professional. The couple married in May 2003, and have two daughters.

References

1. ^ "Chiba Yondan･Usui Joryū Sandan, Kekkon e" 千葉四段･碓井女流三段, 結婚へ [Chiba 4-dan and Women's professional Usui 3-dan announce marriage] (in Japanese). Japan Shogi Association. May 26, 2003. Archived from the original on June 6, 2003. Retrieved February 16, 2018.
2. "Joryū Kishi Dētabēsu" 女流棋士データベース [Women's Professional Shogi Player Database] (in Japanese). Japan Shogi Association. Retrieved August 13, 2019.
3. "Ōyama Meijinhai Kurashiki Tōkasen: Kako no Kekka" 大山名人杯倉敷藤花戦: 過去の結果 [Ōyama Meijin Cup Kurashiki Tōka Tournament: Past results] (in Japanese). Japan Shogi Association. Retrieved August 23, 2019.
4. "Dai Nijūgoki Joryū Meijinisen Goban Shōbu" 第25期女流名人位戦五番勝負 [25th Women's Meijin Best-of-Five Match] (in Japanese). Japan Shogi Association. Archived from the original on October 22, 1999. Retrieved August 23, 2019.
5. "Okada Bijūtsukanhai Joryū Meijinsen: Kako no Kekka" 岡田美術館杯女流名人戦: 過去の結果 [Okada Art Cup Museum Women's Meijin Tournament: Past results] (in Japanese). Japan Shogi Association. Retrieved August 23, 2019.
6. "Joryū Ōisen: Kako no Kekka" 女流王位戦: 過去の結果 [Women's Ōi Tournament: Past results] (in Japanese). Japan Shogi Association. Retrieved August 23, 2019.
7. "Dai Jūikkai Joryū Ōisen" 第11期女流王位戦 [11th Women's Ōi Tournament] (in Japanese). Japan Shogi Association. 2000. Retrieved August 23, 2019.
8. "Dai Gokai Kashimahai Joryū Shōgi Tōnamento" 第5回 鹿島杯女流将棋トーナメント [5th Kashima Cup Women's Shogi Tournament] (in Japanese). Japan Shogi Association. 2000. Retrieved August 23, 2019.
9. "Dai Rokkai Kashimahai Joryū Shōgi Tōnamento" 第6回 鹿島杯女流将棋トーナメント [6th Kashima Cup Women's Shogi Tournament] (in Japanese). Japan Shogi Association. 2001. Retrieved August 23, 2019.
10. "Dai Nijūkyūki Aruzehai Joryū Meijinisen" 第29期アルゼ杯女流名人位戦 [29th Aruze Cup Women's Meijin Tournament] (in Japanese). Japan Shogi Association. 2003. Retrieved August 23, 2019.
11. "Dai Sanjūikki Aruzehai Joryū Meijinisen" 第31期アルゼ杯女流名人位戦 [29th Aruze Cup Women's Meijin Tournament] (in Japanese). Japan Shogi Association. 2003. Retrieved August 23, 2019.
12. "Dai Nijūnanaki Joryū Ōshōsen" 第27期 女流王将戦 [27th Women's Ōshō Tournament] (in Japanese). Japan Shogi Association. 2005. Retrieved August 23, 2019.
13. "Chiba Joryū Sandan, Hatsu Taitoru!!" 千葉女流三段, 初タイトル!! [Women's professional Chiba 3d wins first major title!!] (in Japanese). Igo & Shogi Channel. June 6, 2005. Retrieved August 23, 2019.
14. Furukawa, Tetsuo, ed. (September 2014). "Joryū Kikai no Yonjū Shūnen" 女流棋界の40周年 [40 years of Women's Professional Shogi]. Shogi World (in Japanese). MyNabi Publishing/Japan Shogi Association. p. 26. Retrieved August 23, 2019 – via Google Books.
15. "Dai Nijūhakki Joryū Ōshōsen" 第28期 女流王将戦 [28th Women's Ōshō Tournament] (in Japanese). Japan Shogi Association. 2006. Retrieved August 23, 2019.
16. "Dai Nijūkyūki Joryū Ōshōsen" 第29期 女流王将戦 [29th Women's Ōshō Tournament] (in Japanese). Japan Shogi Association. 2005. Retrieved August 23, 2019.
17. "Dai Nijūkyūki Joryū Ōshōsen Goban Shōbu, Shimizu Joryū Ōi, Dasshu" 第29期女流王将戦五番勝...清水女流王位, 奪取 [29th Women's Ōshō Best-of-Five Match... Women's Ōi Shimizu takes title.] (in Japanese). Igo & Shogi Channel. June 21, 2007. Retrieved August 23, 2019.
18. "Joryū Kishi Dētabēsu: Chiba Ryōko Shōdan Rireki" 女流棋士データベース: 千葉涼子 昇段履歴 [Women's Professional Shogi Player Database: Ryōko Chiba Promotion History] (in Japanese). Japan Shogi Association. Retrieved August 23, 2019.
19. "Joryū Kishi Dētabēsu: Chiba Ryōko Taitoru Rireki" 女流棋士データベース: 千葉涼子 タイトル履歴 [Women's Professional Shogi Player Database: Ryōko Chiba Major Title History] (in Japanese). Japan Shogi Association. Retrieved August 23, 2019.
20. "Joryū Kishi Dētabēsu: Chiba Ryōko Yūshō Rireki" 女流棋士データベース: 千葉涼子 優勝履歴 [Women's Professional Shogi Player Database: Ryōko Chiba Championship History] (in Japanese). Japan Shogi Association. Retrieved August 23, 2019.
21. "Joryū Kishi Dētabēsu: Chiba Ryōko Shōgi Taishō" 女流棋士データベース: 千葉涼子 将棋大賞 [Women's Professional Shogi Player Database: Ryōko Chiba Annual Shogi Awards] (in Japanese). Japan Shogi Association. Retrieved August 23, 2019.
22. Geneki Purō Kishi DētaBukku 2016 [Ge] Ta-Wa Gyō 現役プロ棋士データブック2016 [下] た-わ行 [2016 Active Shogi Professional Databook Letter "Ta" to letter "Wa"] (in Japanese). MyNabi Publishing/Japan Shogi Association. 2015. p. 4. ASIN B019SSNKVA. Retrieved May 14, 2019 – via Google Books.

External links

• ShogiHub: Chiba, Ryoko

• Japanese shogi players
• Japan Shogi Association players
• Living people
• Female shogi players
• Professional shogi players from Toyama Prefecture
• Women's Ōshō
• 1980 births