:63rd NHK Cup (shogi)

The 63rd NHK Cup, or as it is officially known the {{nihongo|63rd NHK Cup TV Shogi Tournament|第63回NHK杯テレビ将棋トーナメント|dairokujūsankai enueichikeihai terebi shōgi tōnamento}} was a professional shogi tournament organized by the Japan Shogi Association and sponsored by Japan's public broadcaster NHK. Play began on April 7, 2013, and ended on March 23, 2014. The 50-player single elimination tournament was won by Masataka Gōda. All of the tournament games were shown on NHK-E. The {{nihongo|host|司会者|shikaisha}} during the NHK-E broadcasts was female professional Rieko Yauchi.{{cite web|url=http://cgi2.nhk.or.jp/goshogi/shogitou/tournament_63.cgi|script-title=ja:第63回NHKテレビ将棋トーナメント|title=Dai Rokujūsankai NHK Terebi Shōgi tōnamento|trans-title=63rd NHK TV Shogi Tournament|language=ja|publisher=NHK|url-status=dead|archive-url=https://web.archive.org/web/20130806044937/http://cgi2.nhk.or.jp/goshogi/shogitou/|archive-date=August 6, 2013|access-date=August 23, 2018}}

{{TOC limit|2}}

Participants

=Preliminary tournaments=

A total of 130 professional shogi players competed in 18 preliminary tournaments to qualify for the main tournament. These tournaments were non-televised one-day tournaments held at the Tokyo Shogi Kaikan and the Kansai Shogi Kaikan. Each tournament consisted of seven or eight players. The initial time control for each player was 20 minutes followed by a 30-second byōyomi.{{cite web|url=http://www.shogi.or.jp/kisen/nhk/63/yosen.html|script-title=ja:第63回NHK杯戦予選|title=Dai Rokujūsankai NHK Haisen Yosen|trans-title=63rd NHK Cup preliminaries|language=ja|year=2013|publisher=Japan Shogi Association|access-date=August 23, 2018}}

The female professional seed was Hatsumi Ueda. Brackets from two of the preliminary tournaments are shown below.

valign="top"

|File:63rd NHK CupTV Shogi Brackets Prelim7.svg

|File:63rd NHK CupTV Shogi Brackets Prelim8.svg

=Main tournament=

The first time control for main tournament games was ten minutes per player. Once this was used up, a second time control of 10 one-minute periods of {{nihongo|"thinking time"|考慮時間|Kōryō Jikan}} began. Each player was given 30 seconds to make their move. If they did so, then no thinking time periods were used. If, however, they did not, a thinking time period began and they then had up to one minute (more specifically 59 seconds) to make a move before entering the next thinking time period. This process was repeated until a player had used all ten thinking time periods when the final byōyomi time control of 30 seconds per move began.{{cite web|url=http://cgi2.nhk.or.jp/goshogi/shogitou#main_bottom|script-title=ja:対局のルール|title=Taikyoku no Ruru|trans-title=Game rules|language=ja|publisher=NHK|url-status=dead|archive-url=https://web.archive.org/web/20130806044937/http://cgi2.nhk.or.jp/goshogi/shogitou/#main_bottom|archive-date=August 6, 2013|access-date=August 23, 2018}} Sente was determined prior to each game by piece toss.

The 50 players listed below qualified for the main tournament.

-

| style="padding-right: 1em" |

{|class="wikitable" border="1"|Block A

No.NameRank/Title
align=center | A1Akira Watanabealign=center | NHK Cup
align=center | A2Shōji Segawaalign=center | 5d
align=center | A3Akihito Hirosealign=center |7d
align=center | A4Yasuaki Murayamaalign=center | 6d
align=center | A5Kōru Abealign=center | 4d
align=center | A6Amahiko Satōalign=center | 7d
align=center | A7Takayuki Yamasakialign=center |7d
align=center | A8Yasumitsu Satōalign=center | ōshō
align=center | A9Tomohiro Murataalign=center | 6d
align=center | A10Masayuki Toyoshimaalign=center | 7d
align=center | A11Kazuhiro Nishikawaalign=center | 4d
align=center | A12Hatsumi Uedaalign=center | W3d{{efn|"W3d" stands for "Women's professional 3 dan".}}
align=center | A13Kōji Tanigawaalign=center | 9d
align=center | A14Kōichi Fukauraalign=center | 9d
align=center | A15Kōhei Funaealign=center | 5d
align=center | A16Tetsurō Itodanialign=center | 6d
align=center | A17Daisuke Nakagawaalign=center | 8d
align=center | A18Ayumu Matsuoalign=center | 7d
align=center | A19Toshiyuki Moriuchialign=center |Meijin
align=center | A20Michio Takahashialign=center |9d
align=center | A21Taichi Nakamuraalign=center | 6d
align=center | A22Hirotaka Nozukialign=center | 7d
align=center | A23{{ill|Kōji Horiguchi|ja|堀口弘治}}align=center | 7d
align=center | A24Takuya Nagasealign=center | 5d
align=center | A25Masataka Gōdaalign=center |Kiō

| style="padding-left: 1em; vertical-align:top" |

class="wikitable" border="1"| Block B
No.NameRank/Title
align=center | B1Yoshiharu Habualign=center |3 crown{{efn|The Japanese character {{nihongo2||kan}} means "crown" and is commonly used as an honorific suffix attached to the names of multiple major titleholders; Therefore, {{nihongo|"3 crown"|三冠|sankan}} means that the player currently holds three major titles. Players holding only one major title are commonly referred to by their title. Non major titleholders are referred to by their rank ("dan").}}
align=center | B2Kensuke Kitahamaalign=center |7d
align=center | B3Kazuki Kimuraalign=center |8d
align=center | B4Masahiko Uranoalign=center | 8d
align=center | B5Tadashi Ōishialign=center |4d
align=center | B6Hisashi Namekataalign=center |8d
align=center | B7Manabu Senzakialign=center |8d
align=center | B8 Nobuyuki Yashikialign=center |9d
align=center | B9Mamoru Hatakeyamaalign=center | 7d
align=center | B10{{ill|Keiji Mori|ja|森けい二}}align=center |9d
align=center | B11Hiroki Nakataalign=center |8d
align=center | B12Yūki Sasakialign=center | 4d
align=center | B13Takanori Hashimotoalign=center |8d
align=center | B14Tadahisa Maruyamaalign=center | 9d
align=center | B15Taichi Takamialign=center |4d
align=center | B16Eiji Iijimaalign=center | 7d
align=center | B17Keita Inouealign=center |9d
align=center | B18Kōta Kanaialign=center |5d
align=center | B19Toshiaki Kuboalign=center | 9d
align=center | B20Hiroyuki Miuraalign=center |8d
align=center | B21Chikara Akutsualign=center | 7d
align=center | B22Isao Nakataalign=center |7d
align=center | B23Hiroki Iizukaalign=center | 7d
align=center | B24Issei Takazakialign=center |6d
align=center | B25Daisuke Suzukialign=center |8d

|}

Notes:

  • "No." represents the bracket position of the player in their respective block and "Rank/Title" represents the rank or titles held by the player when the original bracket finalized. A {{nihongo|dan/kyū|段級|dankyū}} grading system is used for ranking players.
  • Players whose names are in bold were seeded directly into the main tournament as follows:{{efn|Players overlapping multiple categories are only listed once.}}
  1. 62nd NHK Cup (four players): Watanabe (champion), Habu (runner-up), Suzuki (semifinalist) and Gōda (semifinalist).
  2. Seven major titleholders (two players): Moriuchi (Meijin) and Satō (ōshō){{efn|The other major titleholders at the end of the previous year were Habu (ōza, ōi, and Kisei), Watanabe (Ryūō), and Gōda (Kiō).}}
  3. Class A (six players): Miura, Tanigawa, Yashiki, Takahashi, Hashimoto and Fukaura
  4. Class B1 (twelve players): Maruyama, Kubo, Akutsu, Kimura, Namekata, Yamasaki, Inoue, Matsuo, Nakata, Hatakeyama, Hirose and Iizuka
  5. Other tournament winners (one player): Nagase (Shinjin-Ō)
  6. Women's professional (one player): Ueda Women's 3 dan (Mynavi Women's Shogi Open Champion)
  7. Others with outstanding records (six players): Iijima (Class B2), Toyoshima (Class B2), Murayama (Class C1), Itodani (Class C1), Nakamura (Class C1), Ōishi (Class C2){{efn|Based upon JSA 2012 calendar year rankings in the following three categories: games played, games won, and winning percentage.{{cite web|url=https://www.shogi.or.jp/game/record/archives/2012_ranking.html|script-title=ja:2012年度棋士成績・記録|title=Nisenjūninendo Kishi Seiseki・Kiroku|trans-title=2012 Shogi Year Player Rankings and Records|language=ja|publisher=Japan Shogi Association|access-date=August 23, 2018}}}}

:Among these 32 seeds, the following 14 were given byes in round 1 and began play in round 2: Watanabe, Habu, Suzuki, Gōda, Moriuchi, Satō, Miura, Tanigawa, Yashiki, Takahashi, Hashimoto, Fukaura, Maruyama, and Kubo.

  • The remaining players qualified by winning preliminary tournaments.

The bracket at the start of the tournament is shown below.

File:63rd NHK CupTV Shogi Brackets Start.svg

Results

Winners are listed in bold. "Date" refers to the date the game was broadcast. Dan and titles are as of the date the game was broadcast. "Guest Analyst" refers to the kishi who provided expert commentary during the broadcast. "No. of moves" refers to the total number of moves played in the game.{{efn|Unlike in chess where moves are numbered in pairs, moves in shogi are numbered individually. So, a game that lasts 51 moves means that sente made 26 moves and gote made 25 moves.{{citation needed|reason=Should be sourced so not mistaken for original research|date=April 2014}}}}

=Round 1=

A total of 18 games were played in round 1. Play began on April 7, 2013, and ended on August 8, 2013. The 18 preliminary tournament winners were paired against 18 seeded players.

class="wikitable"
width="20"|No.BlockSenteGote{{efn|{{nihongo|Gote|後手}} refers to "the player who moves second".}}No. of moveswidth="120"| DateGuest Analyst
align="center"| 1align="center"|ATaichi Nakamura 6dHirotaka Nozuki 7dalign="center"| 165April 7, 2013Chikara Akutsu 7d
align="center"|2align="center"|BEiji Iijima 7dTaichi Takami 4dalign="center"|97April 14, 2013Kiyokazu Katsumata 6d
align="center"|3align="center"|AKōji Horiguchi 7dTakuya Nagase 5dalign="center"|106April 21, 2013Osamu Nakamura 9d
align="center"|4align="center"|BKeiji Mori 9dMamoru Hatakeyama 7dalign="center"|109April 28, 2013Bungo Fukusaki 9d
align="center"|5align="center"|BHiroki Nakata 8dYūki Sasaki 4dalign="center"|105May 5, 2013{{ill|Kazuo Ishida|ja|石田和雄}} 9d
align="center"|6align="center"|ADaisuke Nakagawa 8dAyumu Matsuo 7dalign="center"|184May 12, 2013Takahiro Toyokawa 7d
align="center"|7align="center"|BTadashi Ōishi 5dMasahiko Urano 8dalign="center"|113May 19, 2013Isao Nakata 7d
align="center"|8align="center"|AAmahiko Satō 7dTakayuki Yamasaki 7dalign="center"|155May 26, 2013Akira Inaba 6d
align="center"|9align="center"|BHisashi Namekata 8dManabu Senzaki 8dalign="center"|119June 2, 2013Yoshiharu Habu 3 crown
align="center"|10align="center"|BKensuke Kitahama 8dKazuki Kimura 8dalign="center"|150June 9, 2013Nobuyuki Yashiki 9d
align="center"| 11align="center"|BIsao Nakata 7dChikara Akutsu 7dalign="center"|120June 16, 2013Masahiko Urano 8d
align="center"|12align="center"|BKōta Kanai 4dKeita Inoue 9dalign="center"|119June 23, 2013Tadao Kitajima 6d
align="center"| 13align="center"|AYasuaki Murayama 6dKōru Abe 4dalign="center"| 143June 30, 2013Taichi Nakamura 6d
align="center"| 14align="center"|ATetsurō Itodani 6dKōhei Funae 5dalign="center"|176July 7, 2013Takayuki Yamasaki 7d
align="center"| 15align="center"|BIssei Takazaki 6dHiroki Iizuka 7dalign="center"|119July 14, 2013Daisuke Nakagawa 8d
align="center"|16align="center"|AAkihito Hirose 7dShōji Seigawa 5dalign="center"|151July 21, 2013Eiji Iijima 7d
align="center"|17align="center"|ATomohiro Murata 6dMasayuki Toyoshima 7dalign="center"|138July 28, 2013Takashi Abe 8d
align="center"| 18align="center"|AHatsumi Ueda W3dKazuhiro Nishikawa 4dalign="center"|112August 4, 2013Makoto Tobe 6d

=Round 2=

A total of 16 games were played in round 2. Play began on August 11, 2013, and ended on November 24, 2013. The 18 winners from round 1 were joined by the 14 players who had received round 1 byes.

class="wikitable"
width="20"|No.BlockSenteGoteNo. of moveswidth="130"| DateGuest Analyst
align="center"| 1align="center"|BKeiji Mori 9dNobuyuki Yashiki 9dalign="center"| 96August 11, 2013Michio Takahashi 9d
align="center"|2align="center"|AToshiyuki Moriuchi MeijinAyumu Matsuo 7dalign="center"|125August 18, 2013Hirotaka Nozuki 7d
align="center"|3align="center"|ATaichi Nakamura 6dMichio Takahashi 9dalign="center"|104August 25, 2013Kōichi Fukaura 9d
align="center"|4align="center"|BEiji Iijima 7dTadahisa Maruyama 9dalign="center"|88September 1, 2013Akira Watanabe NHK Cup
align="center"|5align="center"|AAmahiko Satō 7dYasuaki Murayama 6dalign="center"|120September 8, 2013Kazuki Kimura 8d
align="center"|6align="center"|BKōta Kanai 5dToshiaki Kubo 9dalign="center"|117September 15, 2013Takeshi Fujii 9d
align="center"|7align="center"|BDaisuke Suzuki 8dIssei Takazaki 6dalign="center"|212September 22, 2013Manabu Senzaki 8d
align="center"|8align="center"|AMasayuki Toyoshima 7dYasumitsu Satō 9dalign="center"|103September 29, 2013Kōji Tanigawa 9d
align="center"|9align="center"|AAkira Watanabe NHK CupAkihito Hirose 7dalign="center"|98October 6, 2013Amahiko Satō 7d
align="center"|10align="center"|BHiroki Nakata 8dTakanori Hashimoto 8dalign="center"|117October 13, 2013Ayumu Matsuo 7d
align="center"| 11align="center"|AKōji Tanigawa 9dKazuhiro Nishikawa 4dalign="center"|124October 20, 2013Toshiaki Kubo 9d
align="center"|12align="center"|BYoshiharu Habu 3 crownKazuki Kimura 8dalign="center"|131October 27, 2013Yasumitsu Satō 9d
align="center"| 13align="center"|AMasataka Gōda 9dTakuya Nagase 6dalign="center"| 105November 3, 2013Taku Morishita 9d
align="center"| 14align="center"|BHiroyuki Miura 9dChikara Akutsu 7dalign="center"|99November 10, 2013Hisashi Namekata 8d
align="center"| 15align="center"|BTadashi Ōishi 6dHisashi Namekata 8dalign="center"|77November 17, 2013Kensuke Kitahama 8d
align="center"|16align="center"|AKōhei Funae 5dKōichi Fukaura 9dalign="center"|85November 24, 2013Mamoru Hatakeyama 7d

=Round 3=

Play began on December 1, 2013, and ended on January 26, 2014. Out of the 18 preliminary tournament winners, only the following four made it to round 3: Kanai 5d, Nishikawa 4d, Takazaki 6d and Funae 5d

class="wikitable"
width="20"|No.BlockSenteGoteNo. of moveswidth="125"| DateGuest Analyst
align="center"| 1align="center"|BTadahisa Maruyama 9dKōta Kanai 5dalign="center"|149December 1, 2013Masataka Gōda 9d
align="center"|2align="center"|AAkihito Hirose 7dYasuaki Murayama 6dalign="center"|124December 8, 2013Daisuke Suzuki 8d
align="center"|3align="center"|AMasataka Gōda 9dMichio Takahashi 9dalign="center"|81December 15, 2013Osamu Nakamura 9d
align="center"|4align="center"|BYoshiharu Habu 3 crownTadashi Ōishi 6dalign="center"|126December 22, 2013Takayuki Yamasaki 8d
align="center"|5align="center"|BHiroyuki Miura 9dIssei Takazaki 6dalign="center"|163January 5, 2014Akihito Hirose 7d
align="center"|6align="center"|BNobuyuki Yashiki 9dHiroki Nakata 8dalign="center"|129January 12, 2014Akira Shima 9d
align="center"|7align="center"|AToshiyuki Moriuchi 2 crown{{efn|Challenger Moriuchi defeated defending champion Watanabe in Game 5 of the 26th Ryūō Tournament on November 29, 2013, to take the Ryūō title and, thus become a "2 crown".{{cite web|url=http://www.shogi.or.jp/kisen/ryuuou/26/index.html|script-title=ja:第26期竜王戦|title=Dai Nijūrokki Ryūōsen|trans-title=26th Ryuo Tournament|language=ja|publisher=Japan Shogi Association|access-date=April 18, 2014}}}}Kōhei Funae 5dalign="center"|117January 19, 2014Takashi Abe 8d
align="center"|8align="center"|AMasayuki Toyoshima 7dKazuhiro Nishikawa 4dalign="center"|154January 26, 2014Akira Inaba 7d

=Quarterfinals=

The eight remaining players were paired off against each other with play beginning on February 2 and ending on February 23, 2014. Only one major titleholder, Moriuchi 2 crown, made it as far as the quarterfinals.

class="wikitable"
width="20"|No.BlockSenteGoteNo. of moveswidth="120"| DateGuest Analyst
align="center"| 1align="center"|AToshiyuki Moriuchi 2 CrownMasataka Gōda 9dalign="center"|120February 2, 2014Yasumitsu Satō 9d
align="center"|2align="center"|BTadahisa Maruyama 9dHiroyuki Miura 9dalign="center"|117February 9, 2014Kazuki Kimura 8d
align="center"|3align="center"|AYoshiaki Murayama 6dKazuhiro Nishikawa 4dalign="center"|117February 16, 2014Chikara Akutsu 8d
align="center"|4align="center"|BTadashi Ōishi 6dNobuyuki Yashiki 9dalign="center"|102February 23, 2014Masayuki Toyoshima 7d

=Semifinals=

The two remaining players from each block with paired against each other to determine the respective block winners. The 1st semifinal game between Kazuhiro Nishikawa 4d (sente) and Masataka Gōda 9d (gote) was broadcast on March 2, 2014. Gōda won the game in 128 moves, thus stopping Nishikawa's NHK Cup winning streak at six.{{efn|Nishikawa won three games to win his preliminary tournament, and then his first three main tournament games.}} The guest analyst was Kunio Naitō 9d. The 2nd semifinal game was between Tadashi Ōishi 6d (sente) and Tadahisa Maruyama 9d (gote). The game was broadcast on March 9, 2014, and won by Maruyama in 104 moves. The guest analyst was Daisuke Katagami 6d.

=Finals=

After 112 preliminary tournament games and 48 main tournament games involving 162 players, Tadashisa Maruyama 9d and Masataka Gōda 9d met in the final broadcast on March 23, 2014. This was the second NHK Cup final appearance for both players: Maruyama defeated Akira Watanabe to win the 55th NHK Cup (2005) and Gōda was runner-up to Daisuke Suzuki in the 49th NHK Cup (1999). The piece toss before the game resulted in Maruyama being sente. Gōda won the game in 82 moves, thus winning the tournament for the first time and becoming the 63rd NHK Cup Champion.{{cite news|author=|date=March 25, 2014|script-title=ja:郷田九段, 初V 将棋NHK杯|title=Gōda Kudan, Hatsu V Shōgi NHKhai|trans-title=Gōda 9 dan, First-time Champion, Shōgi NHK Cup|url=http://www.asahi.com/articles/ASG3N5G33G3NUCVL01C.html|language=ja|newspaper=Asahi Shimbun|url-status=dead|archive-url=https://web.archive.org/web/20140325102422/http://www.asahi.com/articles/ASG3N5G33G3NUCVL01C.html|archive-date=March 25, 2014|access-date=August 23, 2018}} The guest analysts for the final match were Toshiyuki Moriuchi 2-crown and Keita Inoue 9d and the hosts of the final were NHK announcer {{ill|Ryō Nagano|ja|長野亮}} and women's professional Rieko Yauchi.

{{Shogi diagram

| tright

| 63rd NHK Cup Final (82. Sx7g+)

Gote: Masataka Gōda 9d

| Pieces-in-hand: 桂(2)

| dxs| | | | gg | kg | | ng | lg

| | | ts | sg | | sg | gg | pg |

| | | pg | pg | pg | pg | sg | | pg

| pg | | | | | | | ps |

| | | rg | | | | pg | |

| ps | | | ps | | ls | ps | | bs

| | |psgl| | ps | ps | | | ps

| | ks | | | | | | |

| ls | | | | gg | | | | ls

| 角 金 桂 歩(2)

|Sente: Tadahisa Maruyama 9d

}}

The game score and a diagram showing the final position is given below.{{cite web|url=http://cgi2.nhk.or.jp/goshogi/kifu/sgs.cgi?d=20140323|script-title=ja:NHK杯テレビ将棋トーナメント棋譜, 2014年3月23日第63回NHK杯決勝|trans-title=NHK Cup TV Shogi Tournament game score, 63rd NHK Cup Final (March 23, 2014)|title=NHKhai Terebi Shōgi Tōnamento Kifu, 2014nen 3gatsu 23nichi Dai 63kai NHKhai Kesshō|language=ja|publisher=NHK|access-date=April 25, 2014}}

Sente: Tadahisa Maruyama 9d

Gote: Masataka Gōda 9d

Opening: Yokufudori

1. P-2f, 2. P-3d, 3. P-7f, 4. P-8d, 5. P-2e, 6. P-8e, 7. G-7h, 8. G-3b, 9. P-2d, 10. Px2d, 11. Rx2d, 12. P-8f, 13. Px8f, 14. Rx8f, 15. Rx3d, 16. B-3c, 17. K-5h, 18. K-4a, 19. P-3f, 20. G-5a, 21. N-3g, 22. S-6b, 23. S-3h, 24. S-2b, 25. P-9f, 26. P-9d, 27. N-4e, 28. P*3g, 29. Sx3g, 30. Bx8h+, 31. Sx8h, 32. B*5e, 33. B*7g, 34. Rx7f, 35. R-8d, 36. Bx3g+, 37. Rx8a+, 38. R-7e, 39. G-4h, 40. +Bx4h, 41. Kx4h, 42. Rx4e, 43. B*3d, 44. R-7e, 45. K-5h, 46. S-3c, 47. B-1f, 48. N*6e, 49. P*2d, 50. P*2b, 51. +Rx9a, 52. Nx7g+, 53. Sx7g, 54. B*3g, 55. N*3e, 56. P*3d, 57. L*4f, 58. S*4b, 59. P*7b, 60. Px3e, 61. P-6f, 62. N*8e, 63. P-7a+, 64. Nx7g+, 65. Nx7g, 66. S*7f, 67. N*8i, 68. G*5i, 69. K-6h, 70. B-4h+, 71. +P-7b, 72. +B-5h, 73. K-7i, 74. +B-6i, 75. K-8h, 76. +Bx7h, 77. Kx7h, 78. G*6g, 79. K-8h, 80. Gx7g, 81. Nx7g, 82. Sx7g+, sente resigns (diagram)

The final tournament bracket is shown below.

File:63rd NHK CupTV Shogi Brackets Final.svg

Other

  • Sente won 27 (a little more than 55%) of the 49 games.
  • The average number of moves for the main tournament games was 122. The most moves played in a single game was 212 (Rd. 2, Suzuki 8d vs. Takazaki 6d) while the fewest moves played was 77 (Rd. 2, Ōishi 6d vs. Namekata 8d).
  • There were no replays resulting from {{nihongo|repetition|千日手|sennichite}} or {{nihongo|impasse|持将棋|jishōgi}}, and there were no disqualifications due to illegal moves{{cite web|url=http://www.shogi.or.jp/shogi/hon/05.html|script-title=ja:5.反則について|title=Hansoku ni Tsuite|trans-title=Rules violations|language=ja|publisher=日本将棋連盟 [Japan Shogi Association]|access-date=April 2, 2014|archive-url=https://web.archive.org/web/20140926053955/http://www.shogi.or.jp/shogi/hon/05.html|archive-date=September 26, 2014|url-status=dead}} or time forfeits.
  • The age breakdown (age at start of the tournament) for the players who qualified was as follows: 10–19 years old, 3 players; 20–29 years old, 14 players; 30–39 years old, 15 players; 40–49 years old, 15 players; 50–59 years old, 2 players; 60+ years old, 1 player. The oldest player was Keiji Mori 9d (67 years old) and the youngest player was Kōru Abe 4d (18 years old).

See also

Notes

{{notelist|30em}}

References

{{reflist|30em}}