Open main menu

Yoshiharu Habu (Japanese: 羽生 善治, Hepburn: Habu Yoshiharu, born September 27, 1970) is a professional shogi player and a chess FIDE Master. He studied shogi under Tatsuya Futakami, and is the current Ryūō and Kisei title holder. He is the only person to simultaneously hold seven major professional shogi titles at the same time and is also the only person to qualify as a lifetime title holder for seven major titles. In January 2018, Habu became the first professional shogi player to be awarded Japan's People's Honour Award.

Yoshiharu Habu
Habu at ISF 2011 03.JPG
Yoshiharu Habu at International Shogi Forum 2011
Native name羽生善治
Born (1970-09-27) September 27, 1970 (age 48)
HometownHachiōji, Tokyo
NationalityJapanese
Career
Achieved professional statusDecember 18, 1985(1985-12-18) (aged 15)
Badge Number175
Rank9 dan
TeacherTatsuya Futakami
Current titles heldRyūō
Lifetime titles
Major titles won99
Tournaments won44
Career record1380–554 (.714)
Meijin classA
Ryūō classRyūō
Websites
JSA profile page

Contents

Early lifeEdit

Yoshiharu Habu was born in Tokorozawa, Saitama in 1970 and moved to Hachioji, Tokyo before entering kindergarten. Habu first encountered shogi in his first year of elementary school, when his classmates taught him how the shogi pieces move. He was so fascinated by the game that his mother entered him in a shogi tournament held at the Hachioji Shogi Club in the summer of 1978. Although Habu was eliminated during the preliminary rounds with a record of 1 win and 2 losses, his parents took him to the shogi club every weekend from October 1978. Habu improved so rapidly that he was promoted to amateur 5-dan in October 1981 at the age of eleven.[1][2]

During his elementary school days, Habu regularly participated in regional and national shogi tournaments, mainly for children. At these tournaments, Habu played against several children of the same age who also became professional players, including Toshiyuki Moriuchi, Yasumitsu Sato and Manabu Senzaki. Those players born around 1970 are now known as the Habu generation [ja], not just because they were born in the same year, but also due to their outstanding achievements as players.[1]

In July 1981, Habu qualified to participate in the Amateur Meijin Tournament [ja] as the youngest ever representative ever of the Tokyo Suburban Area, and won four tournaments for elementary school children the following August. In April 1982, Habu won the 7th Elementary School Meijin tournament [ja] (小学生将棋名人戦, Shōgakusei meijinsen).[3] He expressed his desire to become a professional player and asked advice from Katsuyasu Nakajima, the owner of the Hachioji Shogi Club and a student of Tatsuya Futakami. Habu applied for adminssion into the Japan Shogi Association's apprentice school[4] as Futakami's student and was accepted as a member in 1982.

Shogi professionalEdit

Habu became a 4-dan professional in 1985 at the age of 14. He was the third junior high school kid professional in shogi history following Hifumi Kato and Koji Tanigawa. In 1989, at the age of 19, Habu 6-dan won the Ryūō championship, defeating Akira Shima who led a 4-person shogi study group "Shimaken" in which Habu himself took part. This was the first time Habu won one of the seven major titles making him, at the time, the youngest titleholder ever. Although he lost the Ryūō title to Tanigawa the following year, Habu won the Kiō championship four months later in 1991.[2] Since then he has held at least one of the seven major titles every year since then, and according to custom of the titleholder system he has, therefore, never been referred to by his dan ranking since winning that first championship in 1989.

Accumulating three wins in major championships (Ryūō in 1989, Kiō in 1991 and 1992), Habu actually did qualify for promotion to 9-dan in March 1992, but the existing promotion rules required him to be promoted to 8-dan first and then to wait one year before his next promotion. He was officially promoted to 9-dan on April 1, 1994.[5]

In 1992 Habu won the Ōza championship defeating Bungo Fukusaki to hold two titles (Kiō and Ōza) simultaneously. He went on to hold the Ōza title for 19 terms in a row. In 1996 (February 14 to July 30), Habu became the first professional to ever hold all seven major titles (Meijin, Ryūō, Kisei, Ōi, Ōza, Kiō, and Ōshō) at the same time, a remarkable feat that has not been duplicated since.[2]

In July 2012, Habu won his 81st shogi title overall when he won in the Kisei title, becoming 1st on the all-time title-winners list, and surpassing the 80 of the late Yasuharu Oyama.[6]

In June 2014, Habu defeated the defending Meijin Toshiyuki Moriuchi four games to none to become the 72nd Meijin. Habu lost his Meijin title to Moriuchi in 2011 (69th Meijin match) and was unable to defeat Moriuchi and regain the title in both 2012 (70th Meijin match) and 2013 (71st Meijin match). By defeating Moriuchi, Habu not only moved into a tie with both Moriuchi and Yoshio Kimura for third place on the all time Meijin winner's list, he also became the first person the recapture the title for the third time.[7]

In November 2014, Habu won his 1300 official game, becoming the fourth player to do so, the youngest player to do so (44 years and 1 month) and the fastest player to do since turning professional (28 years and 11 months). Habu's win came in his 1801 game as a professional and his winning percentage of 72.3 percent at the time is the all-time highest of any professional player to reach 1300 wins to date.[8]

In December 2017, Habu defeated defending champion Akira Watanabe to win the 30th Ryūō title. It was Habu's seventh Ryūō title overall which qualified him for the title of Lifetime Ryūō. It also made Habu the first shogi professional to qualify for lifetime titles in seven major titles.[9]

On January 5, 2018, Habu became the first shogi professional to be awarded Japan's People's Honor Award.[10] In November 2018, it was announced that he was also awarded the Medal with Purple Ribbon.[11]

Playing styleEdit

Habu is an outstanding player of Static Rook strategies in both attack and defense, whether in early fight or slow game circumstances, but has also used Ranging Rook openings on occasion. Shogi professinal Kiyokazu Katsumata has described Habu's as "a man who plays by applying the strong points of successive great masters as the circumstances demand, a man who combines all of the virtues of all the great masters".[12][verification needed]

Habu's favorite piece is the silver, which he finds vital for both attack and defense.[13][verification needed] His winning percentage when dropping golds and silvers on the squares 2c and 8c (or at 8g and 2g when playing White) is said to be high even though winning after such drops is generally considered to be quite difficult. For this reason, these squares are referred to by some in the shogi world as "Habu's zone".[14][verification needed]

He is well-known for playing superb moves in disadvantageous positions in the endgame, with peculiar brinkmate sequences that other players seem unable to come up with, a characteristic that many young players called "Habu's magic", a label under which he has published a series of books.[citation needed]

His long time rival Toshiyuki Moriuchi said of him: "His greatness lies in that as those around him get stronger, he also gets stronger. He is completely obsessed with not letting there be any big difference in playing strength between himself and other shogi professionals."[15][verification needed]

Chess professionalEdit

 
Habu playing chess with Peter Heine Nielsen (2014)

Habu is also one of the best chess players in Japan, with an Elo rating of 2415 (February 2014).[16][17]

In November 2014, he played former World Chess Champion Garry Kasparov in an exhibition match sponsored by the Japanese company Dwango. The two played two 25-minute rapid games with Habu losing both.[18]

Personal lifeEdit

In March 1996, Habu married actress and singer Rie Hatada [ja] at Hato no Mori Hachiman Shrine in Sendagaya, Tokyo not far from the head office of the Japan Shogi Association. The two had met for the first time in September 1994 and officially announced their engagement in July 1995. It was reported that 80 police officers were assigned to the ceremony due to the popularity of the two.[19] As of 2012, they have two daughters.[2]

Shogi promotion historyEdit

The promotion history of Habu is as follows:[5]

  • 1982, December 2: 6-kyu
  • 1983, February 2: 5-kyu (6 wins, 3 losses)
  • 1983, March 28: 4-kyu (6 wins, no losses)
  • 1983, May 11: 3-kyu: (6 wins, no losses)
  • 1983, July 7: 2-kyu: (6 wins, no losses)
  • 1983, August 24: 1-kyu: (6 wins, no losses)
  • 1984, January 11: 1-dan (12 wins, 4 losses)
  • 1984, September 10: 2-dan (14 wins, 5 losses)
  • 1985, April 25: 3-dan (12 wins, 4 losses)
  • 1985, December 12: 4-dan (13 wins, 4 losses)
  • 1988, April 1: 5-dan (for being promoted to Class C1 of Meijin ranking leagues)
  • 1989, October 1: 6-dan (for being the Ryu-oh challenger)
  • 1990, October 1: 7-dan (for being the Ryu-oh title holder, but needed to wait one year after 6-dan promotion)
  • 1993, April 1: 8-dan (for being promoted to Class A of the Meijin ranking leagues)
  • 1994, April 1: 9-dan (Qualified for rank in 1993 after holding a major title for three periods (years), but needed to wait one year after of 8-dan promotion before promoted to 9-dan [20])

Shogi titles and other championshipsEdit

Major titlesEdit

There are 8 major titles in shogi. Below is a list of number of times and years Habu has won each title.[5]

Title Years Number of times overall
Ryūō 1989, 1992, 1994–95, 2001–02, 2017 (current) 7
Meijin 1994–96, 2003, 2008–10, 2014-15 9
Kisei[21] 1993–95, 2000, 2008–2017 16
Ōi 1993–2001, 2004–06, 2011–16 18
Ōza 1992–2010, 2012–16 24
Kiō 1991–2002, 2005 13
Ōshō 1996–2001, 2003, 2005–09 12

Lifetime titles (qualified for, but awarded upon retirement or death): Lifetime Meijin, Lifetime Ryūō, Lifetime Kisei, Lifetime Ōi, Lifetime Ōza, Lifetime Kiō, Lifetime Ōshō.[5] As a result of having Lifetime awards for all 7 titles, Habu is called the Lifetime Seven Crown (永世七冠) holder.

Holds the record number of title match victories for the following titles: Kisei (tied with Ōyama and Nakahara), Ōi, Ōza, Kiō

Holds the record number of consecutive title match victories for the following titles: Kisei, Ōza, Kiō

Other tournamentsEdit

In addition to major titles, Habu has won the following non-title tournaments.[5]

Tournament Years Number of times
Tatsujin-sen [ja] 2011–12 2
Asahi Cup Open [ja] 2009, 2011, 2013–15 5
*Asahi Open [ja] 2003–06 4
*All Nihon Pro [ja] 1989, 1991, 1997 3
Ginga-sen [ja] 1997–98, 2000–01, 2004, 2006, 2012 7
NHK Cup 1989, 1992, 1997–99, 2001, 2008–11 10
*Hayazashi Senshuken [ja] 1992, 1995, 2002 3
Nihon Series [ja] 1991, 1998, 2003, 2010–11 5
Shinjin-Oh [ja] 1988 1
*All Star Kachinuki-sen [ja] 1988, 1990, 1997, 1999 4
*Tenno-sen [ja] 1987–88 2
*Young Lions [ja] 1987, 1989 2

Lifetime titles: Lifetime NHK Cup Champion

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

AwardsEdit

Habu has received the following awards in recognition of his accomplishments throughout his career. The Annual Shogi Awards are awarded by the Japan Shogi Association to its members each year in recognition of performance during official play throughout the previous professional shogi year or shogi"nendo" (年度) (April 1 to March 31).[22] "Other awards" includes those awarded by the JSA for career accomplishments and those awarded governmental organizations, etc. for contributions made to Japanese society.[5]

Annual shogi awardsEdit

  • 14th Annual Awards (April 1986 — March 1987): Best Winning Percentage, Best New Player[22]
  • 15th Annual Awards (April 1987 — March 1988): Best Winning Percentage, Most Games Won, Fighting-spirit[22]
  • 16th Annual Awards (April 1988 — March 1989): Player of the Year, Best Winning Percentage, Most Games Won, Most Games Played, Most Consecutive Games Won[22]
  • 17th Annual Awards (April 1989 — March 1990): Player of the Year, Best Winning Percentage, Most Games Won, Most Games Played, Most Consecutive Games Won[22]
  • 19th Annual Awards (April 1991 — March 1992): Fighting-spirit[22]
  • 20th Annual Awards (April 1992 — March 1993): Player of the Year, Best Winning Percentage, Most Games Won, Most Games Played, Most Consecutive Games Won[22]
  • 21st Annual Awards (April 1993 — March 1994): Player of the Year[22]
  • 22nd Annual Awards (April 1994 — March 1995): Player of the Year, Most Games Won[22]
  • 23rd Annual Awards (April 1995 — March 1996): Player of the Year, Best Winning Percentage, Most Games Won, Special Award[22]
  • 24th Annual Awards (April 1996 — March 1997): Player of the Year[22]
  • 26th Annual Awards (April 1998 — March 1999): Player of the Year, Most Games Played[22]
  • 27th Annual Awards (April 1999 — March 2000): Player of the Year[22]
  • 28th Annual Awards (April 2000 — March 2001): Player of the Year, Best Winning Percentage, Most Games Won, Most Games Played, Most Consecutive Games Won[22]
  • 29th Annual Awards (April 2001 — March 2002): Player of the Year[22]
  • 30th Annual Awards (April 2002 — March 2003): Player of the Year, Most Games Won, Most Games Played[22]
  • 32nd Annual Awards (April 2004 — March 2005): Player of the Year, Most Games Won, Most Games Played[22]
  • 33rd Annual Awards (April 2005 — March 2006): Player of the Year, Most Games Played, Most Consecutive Games Won[22]
  • 34th Annual Awards (April 2006 — March 2007): Excellent Player, Game of the Year[22]
  • 35th Annual Awards (April 2007 — March 2008): Player of the Year, Most Games Won, Most Games Played, Game of the Year[22]
  • 36th Annual Awards (April 2008 — March 2009): Player of the Year, Game of the Year[22]
  • 37th Annual Awards (April 2009 — March 2010): Player of the Year[22]
  • 38th Annual Awards (April 2010 — March 2011): Player of the Year, Most Games Won[22]
  • 39th Annual Awards (April 2011 — March 2012): Player of the Year, Most Games Won, Most Games Played[22]
  • 40th Annual Awards (April 2012 — March 2013): Excellent Player, Most Games Won, Most Games Played, Game of the Year, Special Award[22]
  • 41st Annual Awards (April 2013 — March 2014): Excellent Player, Most Games Won, Most Games Played, Game of the Year[22]
  • 42nd Annual Awards (April 2014 — March 2015): Player of the Year, Game of the Year[22]
  • 43rd Annual Awards (April 2015 — March 2016): Player of the Year, Special Game of the Year[22]
  • 44th Annual Awards (April 2016 — March 2017): Excellent Player[23]
  • 45th Annual Shogi Awards (April 2017 — March 2018): Player of the Year, Game of the Year[24]

Other awardsEdit

  • 1994: Tokyo Resident Culture Honor Award (Awarded by the Governor of Tokyo in recognition of cultural achievements by a Tokyoite)
  • 1996: Prime Minister's Award (Awarded by then Japanese Prime Minister Ryūtarō Hashimoto in recognition of becoming the first person to hold all seven major shogi titles at the same time.
  • 1999: Shogi Honor Award (Awarded by the JSA in recognition of winning 600 official games as a professional)
  • 2003: Shogi Honor Fighting-spirit Award (Awarded by JSA in recognition of winning 800 official games as a professional)
  • 2007: Special Shogi Honor Award (Awarded by the JSA in recognition of winning 1,000 official games as a professional)
  • 2008: 56th Kikuchi Kan Prize (Awarded by the publishing company Bungei Shunju in recognition of cultural achievements)
  • 2010: 25 Years Service Award (Awarded by the JSA in recognition of being an active professional for twenty-five years)
  • 2018: People's Honor Award
  • 2018: Medal with Purple Ribbon

Year-end shogi prize money rankingsEdit

Since 1993, Habu has finished at the top of the year-end prize money rankings a total of 22 times (1993–96, 1998-2012, 2014–16), second twice (1997 and 2013) and third once (2017). All amounts are given in Japanese yen and consist of tournament winnings and other game fees received during the calendar year (January 1 to December 31).[25]

  • 1993: ¥100,630,000
  • 1994: ¥112,970,000
  • 1995: ¥165,970,000
  • 1996: ¥161,450,000
  • 1997: ¥101,820,000
  • 1998: ¥114,660,000
  • 1999: ¥78,720,000
  • 2000: ¥105,950,000
  • 2001: ¥115,190,000
  • 2002: ¥110,480,000
  • 2003: ¥129,100,000
  • 2004: ¥112,720,000
  • 2005: ¥103,910,000
  • 2006: ¥93,760,000
  • 2007: ¥81,320,000
  • 2008: ¥107,110,000
  • 2009: ¥112,780,000
  • 2010: ¥115,760,000
  • 2011: ¥98,860,000
  • 2012: ¥91,750,000
  • 2013: ¥72,810,000
  • 2014: ¥114,990,000
  • 2015: ¥119,000,000
  • 2016: ¥91,500,000
  • 2017: ¥50,070,000

PublicationsEdit

Habu has written numerous books, articles, etc. on shogi and various other topics. The vast majority of these are in Japanese, but there are some written in English.

  • — (1992–1994). Habu no Zunō Shirīzu 羽生の頭脳シリーズ [Habu's Brain (Series)]. 10 volumes (in Japanese). Tokyo, Japan: 日本将棋連盟 (Nihon Shōgi Renmei, Japan Shogi Association).
  • — (2000). Habu's Words. Translated by Tony Hosking; Yamato Takahashi. Stratford-upon-Avon, England: The Shogi Foundation. ISBN 978-0953108923.
  • — (2006). "Forward". Classic Shogi: Games Collection. By Hosking, Tony. Stratford-upon-Avon, England: The Shogi Foundation. ISBN 978-0953108930.
  • —; Hosking, Tony (2010). Masters of Shogi. Stratford-upon-Avon, England: The Shogi Foundation. ISBN 978-0953108947.

Video gamesEdit

ReferencesEdit

  1. ^ a b Takenokuchi, Katsuhiro (April 1996). "Habu Yoshiharu, Oidachi no Ki" 羽生善治, 生い立ちの記 [Yoshiharu Habu: Personal History]. Shogi Sekai (in Japanese). Japan Shogi Association (Special Issue: 7 Crown Yoshinaru Habu): 168–175.
  2. ^ a b c d Thakrar, Raju (January 7, 2007). "Yoshiharu Habu: Japan's king of the board". the Japan Times. Tokyo, Japan. Retrieved May 28, 2014.
  3. ^ Ito, Karin; Nakamura, Taichi (April 12, 2015). "Shōgi Fōkasu Tokushū: Shōgakusei Meijinsen Yonjūneni" 将棋フォーカス 特集: 小学生名人戦40年 [Shogi Focus Feature: Grade School Meijin 40 Years]. Shogi Focus (in Japanese). Event occurs at 19:22. NHK-E. Retrieved April 13, 2015.
  4. ^ "The Girl Who Hopes to Become a Professional Shogi Player". Kids Web Japan. December 2004. Retrieved May 27, 2014.
  5. ^ a b c d e f "Kishi Shōkai: Habu Yoshiharu" 棋士紹介: 羽生善治 [Player Introduction: Yoshiharu Habu] (in Japanese). Japan Shogi Association. Retrieved October 24, 2014.
  6. ^ "Habu, Tsūsan Taitoru Kakutokusu Rekidai Tandoku Ichii ni" 羽生、通算タイトル獲得数歴代単独1位に [Habu, Number 1 on the list of all-time title winners] (in Japanese). 日本将棋連盟 (Japan Shogi Association). June 6, 2012. Retrieved May 27, 2014.
  7. ^ 山村, 英樹 (May 21, 2014). "Meijinsen: Habu Yonrenshō de Yonkan ni Aratana "Heisei Densetsu" Tanjō" 名人戦:羽生4連勝で4冠に 新たな「平成伝説」誕生 [Meijin Match: Habu wins four in a row, becomes a 4 crown. A new Heisei legend is born.]. Mainichi Shimbun (in Japanese). Tokyo, Japan. Archived from the original on May 22, 2014. Retrieved May 22, 2014.
  8. ^ "Habu Meijin, Sensanbyakushō wo Tasei!" 羽生名人、1300勝を達成! [Habu Meijin, reaches 1300 wins!] (in Japanese). Japan Shogi Association. November 21, 2014. Retrieved November 28, 2014.
  9. ^ Yamamura, Hideki (5 December 2017). "Japanese shogi pro Habu becomes first to qualify for 7 lifetime titles". Mainichi Shimbun. Retrieved 5 December 2017.
  10. ^ Osaki, Tomohiro (January 5, 2018). "Pair become first board game players to receive Japan's People's Honor Award". The Japan Times. Tokyo, Japan. Retrieved January 9, 2018.
  11. ^ "Aki no Hōshō ni Habu Yoshiharu-san" 秋の褒章に羽生善治さんら [Yoshiharu Habu announced as receiving Fall Honors]. Ehime Shimbun (in Japanese). Kyodo News. November 2, 2018. Retrieved November 8, 2018.
  12. ^ Katsumata, Kiyokazu (October 2008). "「Kore nara Wakaru! Saishin Senpo Kogi」language=ja" 「これならわかる! 最新戦法講義」 [Latest Opening Strategy Course: You should understand this!]. Shogi World. Japan Shogi Association. p. 68.
  13. ^ Ajimine, Takayuki (December 11, 2017). "Densetsu no Kishi・ Sakata Sankichi no Meigen 「Gin ga Naiteiru」 no Komerateta Omoi towa?language=ja" 伝説の棋士・阪田三吉の名言 「銀が泣いている」 に込められた想いとは? [What's the meaning behind legendary shogi professional Sankichi Sakata's famous saying "The silvers are crying"?]. Japan Shogi Association. Retrieved July 20, 2018.
  14. ^ Suzuki, Daisuke; Katsumata, Kiyokazu (March 2008). "Shinka Suru Habu Shōgi" 進化する羽生将棋 [The Ever Evolving Shogi of Habu]. Shogi World (in Japanese). Japan Shogi Association. pp. 63–65.
  15. ^ Shogi World (in Japanese). Japan Shogi Association. October 2006. pp. 18–19. Moriuchi's original Japanese: 「彼の凄さは, 周りのレベルも上げつつ, 自分のレベルも上げるところにある. 勝負の世界にいながら, 周りとの差を広げることだけにこだわっていない」
  16. ^ "Rating Progress Chart: Habu, Yoshiharu (JPN)". World Chess Federation (FIDE). Retrieved May 28, 2014.
  17. ^ "When a shogi champion turns to chess". ChessBase GmbH. May 17, 2002. Retrieved May 28, 2014.
  18. ^ Hongo, Jun (November 27, 2014). "Chess Legend Kasparov to Face Japanese Shogi Master Habu". The Wall Street Journal. Retrieved July 10, 2018.
  19. ^ "Keisatsukan Hachijūnin no Genkeitaisei no Naka de Habu Yoshiharu to Hatada Rie ga Kyoshiki" 警察官80人の厳戒態勢の中で羽生善治と畠田理恵が挙式 [Yoshiharu Habu and Rie Hatada's wedding ceremony strictly guarded by 80 police officers]. Nikkan Gendai (in Japanese). Kodansha. November 29, 2013. Retrieved April 14, 2015.
  20. ^ "Yoku Aru Shitsumon: Taitoru wo Sanki Ijō Kakutokushita Kishi ga Kachiboshi de Hachidan ni Shōdanshita Baai, Kudan Shōdan wa Itsu ni Naru Deshōka" よくある質問:タイトルを3期以上獲得した棋士が勝ち星で八段に昇段した場合、九段昇段日はいつになるのでしょうか。 [FAQ: When is a professional who holds a major title for 3 periods (years) and is promoted to 8-dan based upon number of wins officially awarded the rank of 9-dan?] (in Japanese). Japan Shogi Association. Retrieved September 29, 2014.
  21. ^ The Kisei tournament was held twice a year until 1994. Habu was won both times in 1993 and 1994.
  22. ^ a b c d e f g h i j k l m n o p q r s t u v w x y z aa ab "Shōgi Taishō Jushōsha Ichiran" 将棋大賞受賞者一覧 [List of Annual Shogi Award Winners] (in Japanese). Japan Shogi Association. Archived from the original on August 27, 2016. Retrieved April 2, 2017.
  23. ^ "Shōgi Nyūsu: Dai Yonjūyonkai Shōgi Taishō Jushōsha no Oshirase" 将棋ニュース: 第44回将棋大賞受賞者のお知らせ [Shogi News: 44th Annual Award Winners] (in Japanese). Japan Shogi Association. March 31, 2017. Retrieved March 1, 2018.
  24. ^ "Saiyūshūkishi Habu Yoshiharu Ryūō, Tokubetsushō ni Fujii Sōta Rokudan. Dai Yonjūgokai Shōgi Taishō Kimaru" 最優秀棋士賞に羽生善治竜王, 特別賞に藤井聡太六段. 第45回将棋大賞決まる [Shogi News: 45th Annual Award Winners] (in Japanese). Japan Shogi Association. April 2, 2018. Retrieved April 3, 2018.
  25. ^ The following sources are cited in support of Habu's year-end prize money rankings:

External linksEdit