| Date | 
    Tournament | 
    Black | 
    White | 
    Result | 
  
  
    | [1987-12-28] | 
    13th Japanese Tengen, title match #5 | 
    Kobayashi Koichi   | 
    Cho Chikun   | 
    W+0.5 | 
  
  
    | [1987-12-23] | 
    13th Japanese Tengen, title match #4 | 
    Kobayashi Koichi   | 
    Cho Chikun   | 
    W+R | 
  
  
    | [1987-12-22] | 
    31st Korean Kuksu, title match #2 | 
    Cho Hunhyun   | 
    Seo Bongsoo   | 
    B+9.5 | 
  
  
    | [1987-12-14] | 
    13th Japanese Tengen, title match #3 | 
    Cho Chikun   | 
    Kobayashi Koichi   | 
    B+R | 
  
  
    | [1987-12-08] | 
    31st Korean Kuksu, title match #1 | 
    Seo Bongsoo   | 
    Cho Hunhyun   | 
    B+3.5 | 
  
  
    | [1987-12-04] | 
    18th Korean Myeongin, title match #2 | 
    Chang Doojin   | 
    Cho Hunhyun   | 
    W+10.5 | 
  
  
    | [1987-11-30] | 
    6th Japanese Female Honinbo, title match #3 | 
    Kusunoki Teruko   | 
    Ogawa Tomoko   | 
    B+11.5 | 
  
  
    | [1987-11-27] | 
    13th Japanese Tengen, title match #2 | 
    Kobayashi Koichi   | 
    Cho Chikun   | 
    B+1.5 | 
  
  
    | [1987-11-27] | 
    18th Korean Myeongin, title match #1 | 
    Cho Hunhyun   | 
    Chang Doojin   | 
    B+R | 
  
  
    | [1987-11-19] | 
    13th Japanese Tengen, title match #1 | 
    Cho Chikun   | 
    Kobayashi Koichi   | 
    W+2.5 | 
  
  
    | [1987-11-16] | 
    6th Japanese Female Honinbo, title match #2 | 
    Kusunoki Teruko   | 
    Ogawa Tomoko   | 
    B+3.5 | 
  
  
    | [1987-11-12] | 
    28th Japanese Okan, title match | 
    Yamashiro Hiroshi   | 
    Tsuchida Masamitsu   | 
    B+4.5 | 
  
  
    | [1987-11-08] | 
    1st Chinese Best Ten, final | 
    Qian Yuping   | 
    Nie Weiping   | 
    W+R | 
  
  
    | [1987-11-04] | 
    35th Japanese Oza, title match #4 | 
    Cho Chikun   | 
    Kato Masao   | 
    W+R | 
  
  
    | [1987-11-04] | 
    6th Japanese Female Honinbo, title match #1 | 
    Ogawa Tomoko   | 
    Kusunoki Teruko   | 
    B+3.5 | 
  
  
    | [1987-10-21] | 
    12th Japanese Meijin, title match #4 | 
    Rin Kaiho   | 
    Kato Masao   | 
    W+3.5 | 
  
  
    | [1987-10-18] | 
    20th Japanese Hayago Championship, final | 
    Rin Kaiho   | 
    Ishida Yoshio   | 
    B+R | 
  
  
    | [1987-10-15] | 
    35th Japanese Oza, title match #3 | 
    Kato Masao   | 
    Cho Chikun   | 
    W+R | 
  
  
    | [1987-10-15] | 
    31st Kansai-Kiin 1st Place, final 2 | 
    Shiraishi Yutaka   | 
    Tono Hiroaki   | 
    W+R | 
  
  
    | [1987-10-07] | 
    12th Japanese Meijin, title match #3 | 
    Kato Masao   | 
    Rin Kaiho   | 
    B+R | 
  
  
    | [1987-10-01] | 
    31st Kansai-Kiin 1st Place, final 1 | 
    Tono Hiroaki   | 
    Shiraishi Yutaka   | 
    B+R | 
  
  
    | [1987-09-30] | 
    12th Japanese Meijin, title match #2 | 
    Rin Kaiho   | 
    Kato Masao   | 
    W+R | 
  
  
    | [1987-09-25] | 
    35th Japanese Oza, title match #2 | 
    Cho Chikun   | 
    Kato Masao   | 
    W+R | 
  
  
    | [1987-09-17] | 
    12th Japanese Meijin, title match #1 | 
    Kato Masao   | 
    Rin Kaiho   | 
    B+5.5 | 
  
  
    | [1987-09-10] | 
    35th Japanese Oza, title match #1 | 
    Kato Masao   | 
    Cho Chikun   | 
    B+R | 
  
  
    | [1987-09-07] | 
    12th Japanese Shinjin O, final 3 | 
    Yoda Norimoto   | 
    O Meien   | 
    B+0.5 | 
  
  
    | [1987-09-05] | 
    9th Japanese Female Kakusei, final | 
    Ogawa Tomoko   | 
    Sugiuchi Kazuko   | 
    B+R | 
  
  
    | [1987-08-31] | 
    12th Japanese Shinjin O, final 2 | 
    Yoda Norimoto   | 
    O Meien   | 
    W+R | 
  
  
    | [1987-08-21] | 
    12th Korean Kukgi, title match #4 | 
    Cho Hunhyun   | 
    Kang Hun   | 
    B+R | 
  
  
    | [1987-08-20] | 
    12th Japanese Shinjin O, final 1 | 
    O Meien   | 
    Yoda Norimoto   | 
    W+R | 
  
  
    | [1987-08-17] | 
    12th Japanese Gosei, title match #4 | 
    Kato Masao   | 
    Cho Chikun   | 
    B+R | 
  
  
    | [1987-08-11] | 
    12th Korean Kukgi, title match #3 | 
    Kang Hun   | 
    Cho Hunhyun   | 
    B+0.5 | 
  
  
    | [1987-08-04] | 
    12th Korean Kukgi, title match #2 | 
    Cho Hunhyun   | 
    Kang Hun   | 
    B+R | 
  
  
    | [1987-07-30] | 
    12th Japanese Gosei, title match #3 | 
    Cho Chikun   | 
    Kato Masao   | 
    W+2.5 | 
  
  
    | [1987-07-20] | 
    12th Korean Kukgi, title match #1 | 
    Kang Hun   | 
    Cho Hunhyun   | 
    W+R | 
  
  
    | [1987-07-16] | 
    12th Japanese Gosei, title match #2 | 
    Kato Masao   | 
    Cho Chikun   | 
    B+1.5 | 
  
  
    | [1987-07-03] | 
    12th Japanese Gosei, title match #1 | 
    Cho Chikun   | 
    Kato Masao   | 
    B+3.5 | 
  
  
    | [1987-06-25] | 
    42nd Japanese Honinbo, title match #4 | 
    Yamashiro Hiroshi   | 
    Takemiya Masaki   | 
    W+0.5 | 
  
  
    | [1987-06-17] | 
    42nd Japanese Honinbo, title match #3 | 
    Takemiya Masaki   | 
    Yamashiro Hiroshi   | 
    B+R | 
  
  
    | [1987-06-15] | 
    4th Korean Bacchus Cup, final 4 | 
    Kang Hun   | 
    Kim In   | 
    B+1.5 | 
  
  
    | [1987-06-11] | 
    2nd Korean New King, final 2 | 
    Im Seongkeun   | 
    Yoo Changhyuk   | 
    W+0.5 | 
  
  
    | [1987-06-10] | 
    21st Korean Wangwi, title match #4 | 
    Seo Bongsoo   | 
    Cho Hunhyun   | 
    W+R | 
  
  
    | [1987-06-08] | 
    2nd Korean New King, final 1 | 
    Yoo Changhyuk   | 
    Im Seongkeun   | 
    B+2.5 | 
  
  
    | [1987-06-05] | 
    4th Korean Bacchus Cup, final 3 | 
    Kim In   | 
    Kang Hun   | 
    B+R | 
  
  
    | [1987-06-04] | 
    42nd Japanese Honinbo, title match #2 | 
    Yamashiro Hiroshi   | 
    Takemiya Masaki   | 
    W+R | 
  
  
    | [1987-05-27] | 
    42nd Japanese Honinbo, title match #1 | 
    Takemiya Masaki   | 
    Yamashiro Hiroshi   | 
    B+5.5 | 
  
  
    | [1987-05-27] | 
    21st Korean Wangwi, title match #3 | 
    Cho Hunhyun   | 
    Seo Bongsoo   | 
    B+8.5 | 
  
  
    | [1987-05-22] | 
    4th Korean Bacchus Cup, final 2 | 
    Kang Hun   | 
    Kim In   | 
    B+R | 
  
  
    | [1987-05-18] | 
    21st Korean Wangwi, title match #2 | 
    Seo Bongsoo   | 
    Cho Hunhyun   | 
    W+4.5 | 
  
  
    | [1987-05-08] | 
    21st Korean Wangwi, title match #1 | 
    Cho Hunhyun   | 
    Seo Bongsoo   | 
    B+10.5 | 
  
  
    | [1987-05-06] | 
    4th Korean Bacchus Cup, final 1 | 
    Kim In   | 
    Kang Hun   | 
    W+R | 
  
  
    | [1987-04-17] | 
    22nd Korean Paewang, title match #4 | 
    Cho Hunhyun   | 
    Seo Bongsoo   | 
    B+7.5 | 
  
  
    | [1987-04-16] | 
    25th Japanese Judan, title match #4 | 
    Kobayashi Koichi   | 
    Kato Masao   | 
    W+0.5 | 
  
  
    | [1987-04-10] | 
    5th Korean MBC Emperor, final 2 | 
    Seo Bongsoo   | 
    Cho Hunhyun   | 
    W+R | 
  
  
    | [1987-04-06] | 
    22nd Korean Paewang, title match #3 | 
    Seo Bongsoo   | 
    Cho Hunhyun   | 
    W+R | 
  
  
    | [1987-04-02] | 
    25th Japanese Judan, title match #3 | 
    Kato Masao   | 
    Kobayashi Koichi   | 
    W+R | 
  
  
    | [1987-03-30] | 
    5th Korean MBC Emperor, final 1 | 
    Cho Hunhyun   | 
    Seo Bongsoo   | 
    B+R | 
  
  
    | [1987-03-27] | 
    25th Japanese Judan, title match #2 | 
    Kobayashi Koichi   | 
    Kato Masao   | 
    W+4.5 | 
  
  
    | [1987-03-27] | 
    22nd Korean Paewang, title match #2 | 
    Cho Hunhyun   | 
    Seo Bongsoo   | 
    W+5.5 | 
  
  
    | [1987-03-22] | 
    34th Japanese NHK Cup, final | 
    Ishida Yoshio   | 
    Rin Kaiho   | 
    B+2.5 | 
  
  
    | [1987-03-16] | 
    22nd Korean Paewang, title match #1 | 
    Seo Bongsoo   | 
    Cho Hunhyun   | 
    W+0.5 | 
  
  
    | [1987-03-12] | 
    1st Chinese Tianyuan, title match #3 | 
    Ma Xiaochun   | 
    Nie Weiping   | 
    B+1.5 | 
  
  
    | [1987-03-11] | 
    1st Chinese Tianyuan, title match #2 | 
    Ma Xiaochun   | 
    Nie Weiping   | 
    W+R | 
  
  
    | [1987-03-09] | 
    1st Chinese Tianyuan, title match #1 | 
    Nie Weiping   | 
    Ma Xiaochun   | 
    W+R | 
  
  
    | [1987-03-08] | 
    19th Japanese Hayago Championship, final | 
    Cho Chikun   | 
    Kobayashi Koichi   | 
    W+R | 
  
  
    | [1987-03-07] | 
    6th Japanese NEC Cup, final | 
    Otake Hideo   | 
    Rin Kaiho   | 
    B+5.5 | 
  
  
    | [1987-03-07] | 
    2nd Japanese NEC Shunei, final | 
    O Meien   | 
    Kobayashi Satoru   | 
    W+17.5 | 
  
  
    | [1987-03-06] | 
    30th Korean Kuksu, title match #3 | 
    Cho Hunhyun   | 
    Seo Bongsoo   | 
    W+3.5 | 
  
  
    | [1987-03-05] | 
    25th Japanese Judan, title match #1 | 
    Kato Masao   | 
    Kobayashi Koichi   | 
    B+R | 
  
  
    | [1987-02-25] | 
    11th Japanese Kisei, title match #5 | 
    Takemiya Masaki   | 
    Kobayashi Koichi   | 
    W+3.5 | 
  
  
    | [1987-02-20] | 
    4th Korean Taewang, title match #4 | 
    Seo Nungwuk   | 
    Cho Hunhyun   | 
    W+7.5 | 
  
  
    | [1987-02-18] | 
    11th Japanese Kisei, title match #4 | 
    Kobayashi Koichi   | 
    Takemiya Masaki   | 
    W+3.5 | 
  
  
    | [1987-02-16] | 
    26th Korean Choegowi, title match #3 | 
    Cho Hunhyun   | 
    Chang Suyeong   | 
    B+9.5 | 
  
  
    | [1987-02-13] | 
    30th Korean Kuksu, title match #2 | 
    Seo Bongsoo   | 
    Cho Hunhyun   | 
    B+R | 
  
  
    | [1987-02-07] | 
    26th Korean Choegowi, title match #2 | 
    Chang Suyeong   | 
    Cho Hunhyun   | 
    W+R | 
  
  
    | [1987-02-07] | 
    9th Japanese Kakusei, final | 
    Kobayashi Koichi   | 
    Otake Hideo   | 
    W+3.5 | 
  
  
    | [1987-02-04] | 
    11th Japanese Kisei, title match #3 | 
    Takemiya Masaki   | 
    Kobayashi Koichi   | 
    W+R | 
  
  
    | [1987-02-04] | 
    30th Korean Kuksu, title match #1 | 
    Cho Hunhyun   | 
    Seo Bongsoo   | 
    W+2.5 | 
  
  
    | [1987-01-30] | 
    4th Korean Taewang, title match #3 | 
    Cho Hunhyun   | 
    Seo Nungwuk   | 
    W+R | 
  
  
    | [1987-01-28] | 
    11th Japanese Kisei, title match #2 | 
    Kobayashi Koichi   | 
    Takemiya Masaki   | 
    B+R | 
  
  
    | [1987-01-26] | 
    26th Korean Choegowi, title match #1 | 
    Cho Hunhyun   | 
    Chang Suyeong   | 
    B+R | 
  
  
    | [1987-01-21] | 
    17th Korean Myeongin, title match #4 | 
    Seo Bongsoo   | 
    Cho Hunhyun   | 
    W+R | 
  
  
    | [1987-01-19] | 
    4th Korean Taewang, title match #2 | 
    Seo Nungwuk   | 
    Cho Hunhyun   | 
    W+12.5 | 
  
  
    | [1987-01-18] | 
    8th Chinese New Physical Education Cup, title match #4 | 
    Ma Xiaochun   | 
    Cao Dayuan   | 
    W+R | 
  
  
    | [1987-01-13] | 
    11th Japanese Kisei, title match #1 | 
    Takemiya Masaki   | 
    Kobayashi Koichi   | 
    W+4.5 | 
  
  
    | [1987-01-10] | 
    4th Korean Taewang, title match #1 | 
    Cho Hunhyun   | 
    Seo Nungwuk   | 
    B+R | 
  
  
    | [1987-01-07] | 
    8th Chinese New Physical Education Cup, title match #3 | 
    Cao Dayuan   | 
    Ma Xiaochun   | 
    B+R |