| # |
Black player |
Rank |
White player |
Rank |
Result |
# moves |
Date |
Event |
Round |
| 1 | Iwata Tatsuaki | 9p | Hashimoto Utaro | 9p | W+1 | 267 | 1982-04-03 | Honinbo, 37th | League, game 19 | | 2 | Hashimoto Yoshimi | 6p | Iwata Tatsuaki | 8p | B+6 | 254 | 1962-05-31 | Oteai, 1962 | | | 3 | Hashimoto Yoshimi | 9p | Iwata Tatsuaki | 9p | B+6.5 | 254 | 1975-01-30 | Tengen, 01st | 1-01 | | 4 | Hashimoto Yoshimi | 9p | Iwata Tatsuaki | 9p | B+0.5 | 302 | 1978-02-02 | Tengen, 04th | 1-04 | | 5 | Hayashi Yutaro | 7p | Iwata Tatsuaki | 8p | B+R | 203 | 1962-11-15 | Oteai, 1962 | | | 6 | Iwata Tatsuaki | 9p | Hikosaka Naoto | 6p | B+R | 171 | 1985-06-27 | Okan Sen, 26th | 2 | | 7 | Hikosaka Naoto | 9p | Iwata Tatsuaki | 9p | B+R | 201 | 2008-11-20 | | | | 8 | Iwata Tatsuaki | 9p | Hiroe Katsuhiko | 7p | B+R | 143 | 1982-05-27 | Okan Sen, 23rd | 2 | | 9 | Hisai Keishi | 7p | Iwata Tatsuaki | 8p | W+R | 170 | 1963-05-30 | Oteai, 1963 | | | 10 | Honda Kunihisa | 9p | Iwata Tatsuaki | 9p | W+R | 138 | 1982-04-11 | Judan, 21st | Losers' Section, 2-4 | | 11 | Iwata Tatsuaki | 7p | Hosokawa Senjin | 8p | B+4,5 | 302 | 1961-09-27 | Judan, 01st | Preliminary, 3rd round | | 12 | Hotta Seiji | 4p | Iwata Tatsuaki | 9p | B+0.5 | 246 | 1989-12-21 | Okan Sen, 31st | 1 | | 13 | Imamura Yoshiaki | 6p | Iwata Tatsuaki | 9p | B+R | 209 | 1991-02-28 | Okan Sen, 31st | 4 | | 14 | Iwata Tatsuaki | 9p | Imamura Yoshiaki | 7p | W+R | 208 | 1991-12-19 | Okan Sen, 33rd | 1 | | 15 | Inagaki Koichi | 7p | Iwata Tatsuaki | 9p | W+R | 166 | 1983-03-31 | Okan Sen, 24th | 2 | | 16 | Iwata Tatsuaki | 9p | Inagaki Koichi | 8p | B+R | 249 | 1987-02-26 | Okan Sen, 28th | 2 | | 17 | Inagaki Koichi | 8p | Iwata Tatsuaki | 9p | W+3.5 | 246 | 1989-04-20 | Okan Sen, 30th | 2 | | 18 | Iwata Tatsuaki | 9p | Ishida Yoshio | 7p | W+0.5 | 265 | 1972-03-22 | Pro Best Ten, 09th | Title match, game 1 | | 19 | Ishida Yoshio | 7p | Iwata Tatsuaki | 9p | W+R | 194 | 1972-03-28 | Pro Best Ten, 09th | Title match, game 2 | | 20 | Iwata Tatsuaki | 9p | Ishida Yoshio | 7p | W+3.5 | 308 | 1972-04-12 | Pro Best Ten, 09th | Title match, game 3 | | 21 | Ishida Yoshio | 7p | Iwata Tatsuaki | 9p | B+3.5 | 234 | 1972-04-24 | Pro Best Ten, 09th | Title match, game 4 | | 22 | Iwata Tatsuaki | 9p | Ishida Yoshio | 9p | B+R | 154 | 1974-08-01 | Judan, 13th | Winners' Section, Round 1 | | 23 | Iwata Tatsuaki | 9p | Ishida Yoshio | 9p | B+R | 179 | 1982-11-25 | Judan, 21st | Losers' Section, 3-2 | | 24 | Isogawa Masao | 7p | Iwata Tatsuaki | 8p | B+R | 229 | 1963-04-18 | Oteai, 1963 | | | 25 | Iwata Tatsuaki | 9p | Iyama Yuta | 7p | W+R | 194 | 2007-06-14 | Honinbo, 63rd | Last primary tournament | | 26 | Kada Katsuji | 8p | Iwata Tatsuaki | 8p | W+5 | 228 | 1962-11-22 | Oteai, 1962 | | | 27 | Kada Katsuji | 9p | Iwata Tatsuaki | 9p | W+3.5 | 295 | 1984-07-26 | Judan, 23rd | Losers' Section, Round 1 | | 28 | Kada Katsuji | 9p | Iwata Tatsuaki | 9p | B+5.5 | 244 | 1985-04-18 | Honinbo, 40th | League, game 27 | | 29 | Kajiwara Takeo | 8p | Iwata Tatsuaki | 8p | W+8 | 317 | 1963-11-14 | Oteai, 1963 | | | 30 | Kajiwara Takeo | 9p | Iwata Tatsuaki | 9p | W+R | 228 | 1963-12-12 | Honinbo, 19th | League, game 02 | | 31 | Iwata Tatsuaki | 9p | Kajiwara Takeo | 9p | W+3 | 242 | 1983-08-18 | Judan, 22nd | Winners' Section, Quaterfinal - 3 | | 32 | Iwata Tatsuaki | 9p | Kajiwara Takeo | 9p | W+R | 176 | 1996-07-01 | Ryusei Cup, 05th | Quaterfinal - 2 | | 33 | Iwata Tatsuaki | 8p | Kano Yoshinori | 7p | B+R | 171 | 1962-06-27 | Judan, 01st | Losers' Section, Round 2 | | 34 | Kano Yoshinori | 9p | Iwata Tatsuaki | 9p | B+0.5 | 243 | 1969-11-20 | Honinbo, 25th | League, game 01 | | 35 | Iwata Tatsuaki | 9p | Kataoka Satoshi | 7p | B+R | 187 | 1984-11-08 | Honinbo, 40th | League | | 36 | Iwata Tatsuaki | 9p | Kato Masao | 8p | B+R | 143 | 1974-07-11 | Judan, 13th | 1-06 | | 37 | Kato Masao | 9p | Iwata Tatsuaki | 9p | W+4.5 | 264 | 1981-05-14 | Judan, 20th | Winners' Section, Round 1 | | 38 | Iwata Tatsuaki | 9p | Kato Masao | 9p | B+3.5 | 274 | 1981-12-24 | Honinbo, 37th | League, game 06 | | 39 | Kato Masao | 9p | Iwata Tatsuaki | 9p | B+R | 197 | 1984-02-23 | Gosei, 09th | Round 2 | | 40 | Iwata Tatsuaki | 9p | Kato Masao | 9p | W+9.5 | 250 | 1984-06-28 | Judan, 23rd | Winners' Section, Round 1 | | 41 | Iwata Tatsuaki | 9p | Kato Masao | 9p | W+R | 160 | 1997-04-24 | Gosei, 22nd | Quaterfinal - 2 | | 42 | Iwata Tatsuaki | 9p | Kitamura Hiroshi | 6p | B+1.5 | 274 | 1982-02-18 | Tengen, 08th | 1-01 | | 43 | Iwata Tatsuaki | 6p | Kitani Minoru | 9p | W+R | 238 | 1959-01-08 | Nihon Ki-in Championship, 07th | | | 44 | Kitani Minoru | 9p | Iwata Tatsuaki | 7p | B+4 | 244 | 1961-07-27 | Meijin Old, 01st | League | | 45 | Iwata Tatsuaki | 9p | Kobayashi Koichi | 8p | W+5.5 | 282 | 1979-05-17 | Oza, 27th | 1-02 | | 46 | Iwata Tatsuaki | 9p | Kobayashi Koichi | 9p | W+6 | 222 | 1981-12-16 | Honinbo, 37th | League, game 04 | | 47 | Iwata Tatsuaki | 9p | Kobayashi Koichi | 9p | W+0.5 | 269 | 1983-01-13 | Judan, 21st | Losers' Section, Semifinal - 1 | | 48 | Iwata Tatsuaki | 9p | Kobayashi Koichi | 9p | W+6 | 255 | 1983-03-24 | Honinbo, 38th | League, game 24 | | 49 | Iwata Tatsuaki | 9p | Kobayashi Koichi | 9p | W+R | 188 | 1984-02-09 | Honinbo, 39th | League, game 18 | | 50 | Kobayashi Koichi | 9p | Iwata Tatsuaki | 9p | B+R | 217 | 1984-10-25 | Honinbo, 40th | League, game 03 | | 51 | Iwata Tatsuaki | 9p | Kobayashi Koichi | 9p | W+4.5 | 255 | 1987-05-14 | Oza, 35th | 1-08 | | 52 | Komatsu Hideki | 6p | Iwata Tatsuaki | 9p | B+5.5 | 258 | 1988-03-24 | Oza, 36th | 1-04 | | 53 | Komatsu Hideki | 6p | Iwata Tatsuaki | 9p | B+2 | 279 | 1989-01-19 | Oza, 37th | 3-4 | | 54 | Komatsu Hideki | 7p | Iwata Tatsuaki | 9p | B+6 | 257 | 1991-12-05 | Meijin, 17th | League, game 01 | | 55 | Kusaka Kaneo | 6p | Iwata Tatsuaki | 8p | W+ | 259 | 1962-04-19 | Oteai, 1962 | | | 56 | Kusaka Kaneo | 7p | Iwata Tatsuaki | 8p | W+3 | 241 | 1964-05-07 | Oteai, 1964 | | | 57 | Kuwata Yasuaki | 7p | Iwata Tatsuaki | 9p | W+R | 138 | 1979-08-02 | Okan Sen, 20th | 4 | | 58 | Kuwata Yasuaki | 8p | Iwata Tatsuaki | 9p | W+R | 158 | 1986-04-10 | Okan Sen, 27th | 2 | | 59 | Iwata Tatsuaki | 9p | Kuwata Yasuaki | 8p | B+R | 153 | 1989-01-12 | Okan Sen, 30th | 1 | | 60 | Iwata Tatsuaki | 9p | Kuwata Yasuaki | 8p | W+0.5 | 248 | 1993-02-18 | Okan Sen, 34th | 2 | | 61 | Liu Jing | 5p ? | Iwata Tatsuaki | 5p ? | W+2.5 | 252 | 1988-09-23 | NEC Cup, 08th | Round 2 | | 62 | Maeda Nobuaki | 9p | Iwata Tatsuaki | 9p | W+R | 156 | 1968-01-01 | Nihon Ki-in Championship, 16th | Quaterfinal - 3 | | 63 | Magari Reiki | 8p | Iwata Tatsuaki | 8p | B+R | 203 | 1962-06-14 | Oteai, 1962 | | | 64 | Iwata Tatsuaki | 9p | Magari Reiki | 9p | B+6.5 | 276 | 1974-08-29 | Judan, 13th | Round 2 | | 65 | Iwata Tatsuaki | 9p | Matsuoka Hideki | 2p | B+0 | 183 | 1988-03-03 | Okan Sen, 29th | 2 | | 66 | Iwata Tatsuaki | 9p | Mimura Tomoyasu | 6p | W+R | 208 | 1991-08-29 | Meijin, 17th | Preliminary Round 3 | | 67 | Miyashita Shuyo | 9p | Iwata Tatsuaki | 7p | W+5 | 213 | 1961-01-19 | Meijin Old, 01st | League | | 68 | Iwata Tatsuaki | 8p | Miyashita Shuyo | 9p | B+R | 145 | 1963-01-01 | Judan, 02nd | Losers' Section, Round 2 | | 69 | Miyashita Shuyo | 9p | Iwata Tatsuaki | 9p | B+5.5 | 250 | 1968-01-01 | Nihon Ki-in Championship, 16th | Semifinal | | 70 | Miyashita Shuyo | 9p | Iwata Tatsuaki | 9p | B+R | 217 | 1971-01-01 | Nihon Ki-in Championship, 19th | Preliminaries, 1 | | 71 | Moriyama Naoki | 9p | Iwata Tatsuaki | 9p | W+R | 180 | 1997-01-23 | Gosei, 22nd | 1/16 Final - 12 | | 72 | Murashima Yoshinori | 7p | Iwata Tatsuaki | 8p | W+2 | 251 | 1961-01-01 | Oteai, 1961 | Round 18 | | 73 | Nabeshima Ichiro | 6p | Iwata Tatsuaki | 8p | W+R | 190 | 1963-04-25 | Oteai, 1963 | | | 74 | Iwata Tatsuaki | 7p | Nakamura Yutaro | 7p | B+R | 131 | 1960-07-07 | Saikyo Tournament, 06th | Preliminaries | | 75 | Nakano Hironari | 6p | Iwata Tatsuaki | 9p | W+10.5 | 283 | 1990-11-22 | Okan Sen, 32nd | 1 | | 76 | Nakano Hironari | 8p | Iwata Tatsuaki | 9p | B+2.5 | 239 | 1995-03-16 | Okan Sen, 36th | 1 | | 77 | Nakaoka Jiro | 6p | Iwata Tatsuaki | 8p | W+6 | 240 | 1963-10-17 | Oteai, 1963 | | | 78 | Iwata Tatsuaki | 9p | Nie Weiping | 5p ? | W+2.5 | 220 | 1976-04-17 | China-Japan Go Exchange, 1976 | Round 6 | | 79 | Iwata Tatsuaki | 9p | O Meien | 9p | B+0.5 | 234 | 2002-02-21 | Tengen, 28th | 1/8 Final - 1 | | 80 | Iwata Tatsuaki | 9p | O Meien | 9p | B+R | 215 | 2002-03-14 | Tengen, 28th | 1/8 Final - 2 | | 81 | O Rissei | 9p | Iwata Tatsuaki | 9p | W+1.5 | 250 | 1991-06-10 | Ryusei Cup, 01st | Block B, Game 22 | | 82 | Iwata Tatsuaki | 9p | O Rissei | 9p | B+R | 199 | 1991-10-24 | Meijin, 17th | Qualifications, Group 2, Final | | 83 | O Rissei | 8p | Iwata Tatsuaki | 9p | W+R | 262 | 1997-12-17 | Oza, 36th | Qualification-3, game 1 | | 84 | Iwata Tatsuaki | 9p | O Rissei | 9p | W+5 | 273 | 2001-05-03 | Tengen, 27th | 1-17 | | 85 | Iwata Tatsuaki | 9p | Ogata Masaki | 5p | B+R | 133 | 1984-03-22 | Okan Sen, 25th | 2 | | 86 | Iwata Tatsuaki | 9p | Ogata Masaki | 7p | W+R | 198 | 1988-09-15 | Okan Sen, 29th | 3 | | 87 | Ogata Masaki | 7p | Iwata Tatsuaki | 9p | B+1.5 | 262 | 1989-11-09 | Okan Sen, 30th | Final | | 88 | Iwata Tatsuaki | 9p | Ogata Masaki | 8p | B+R | 169 | 1992-12-24 | Okan Sen, 34th | 1 | | 89 | Iwata Tatsuaki | 9p | Ohira Shuzo | 9p | B+R | 211 | 1965-12-23 | Judan, 05th | preliminary, 3rd round | | 90 | Iwata Tatsuaki | 9p | Ohira Shuzo | 9p | W+3.5 | 247 | 1969-01-01 | All-Japan First Place Championship, 1st | 1 | | 91 | Iwata Tatsuaki | 9p | Ohira Shuzo | 9p | W+R | 204 | 1973-12-06 | Pro Best Ten, 11th | 1-08 | | 92 | Ohira Shuzo | 9p | Iwata Tatsuaki | 9p | B+0.5 | 255 | 1975-04-24 | Judan, 14th | 1 | | 93 | Iwata Tatsuaki | 9p | Ohira Shuzo | 9p | W+R | 172 | 1985-05-09 | Tengen, 11th | | | 94 | Otake Hideo | 9p | Iwata Tatsuaki | 9p | B+3 | 249 | | Gosei, 03rd | | | 95 | Iwata Tatsuaki | 9p | Otake Hideo | 7p | W+4.5 | 261 | 1966-01-06 | Judan, 05th | preliminary, 3rd round | | 96 | Otake Hideo | 9p | Iwata Tatsuaki | 9p | B+5 | 255 | 1982-07-10 | Judan, 21st | Winners' Section, Quaterfinal - 4 | | 97 | Iwata Tatsuaki | 9p | Otake Hideo | 9p | W+0.5 | 252 | 1986-09-11 | Honinbo, 42nd | 3rd Preliminary, Semi-final | | 98 | Iwata Tatsuaki | 9p | Otake Hideo | 9p | W+8.5 | 256 | 1986-11-21 | Meijin, 12th | League qualification, Group 2, Final | | 99 | Otake Hideo | 9p | Iwata Tatsuaki | 9p | B+3 | 234 | 1991-01-24 | Oza, 39th | 3-6 | | 100 | Otake Hideo | 9p | Iwata Tatsuaki | 9p | B+R | 199 | 1992-04-16 | Meijin, 17th | League, game 19 |
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