# |
Black player |
Rank |
White player |
Rank |
Result |
# moves |
Date |
Event |
Round |
1 | Kobayashi Koichi | 6p | Cho Chikun | 5p | B+R | 227 | 1972-11-01 | Prime Minister's Cup, 16th | Final | 2 | Kobayashi Koichi | 6p | Cho Chikun | 5p | W+1.5 | 212 | 1973-08-26 | Nihon Ki-in Championship, 21st | 1 | 3 | Cho Chikun | 6p | Kobayashi Koichi | 6p | B+4,5 | 261 | 1974-08-19 | Shin'ei, 06th | Final, game 1 | 4 | Kobayashi Koichi | 7p | Cho Chikun | 6p | B+R | 217 | 1975-05-15 | Prime Minister's Cup, 19th | Round 3 | 5 | Cho Chikun | 7p | Kobayashi Koichi | 7p | W+R | 116 | 1976-02-19 | Gosei, 01st | League, game 06 | 6 | Cho Chikun | 7p | Kobayashi Koichi | 7p | W+2.5 | 219 | 1976-09-09 | Prime Minister's Cup, 20th | Semifinal - 1 | 7 | Cho Chikun | 7p | Kobayashi Koichi | 8p | W+R | 130 | 1977-07-12 | Shinjin-O, 02nd | Title match, game 1 | 8 | Kobayashi Koichi | 8p | Cho Chikun | 7p | B+R | 151 | 1977-07-20 | Shinjin-O, 02nd | Title match, game 2 | 9 | Cho Chikun | 7p | Kobayashi Koichi | 8p | B+0.5 | 268 | 1977-09-01 | Three-game Rivals Match sponsored by Kido | 1 | 10 | Kobayashi Koichi | 7p | Cho Chikun | 7p | B+R | 113 | 1977-10-01 | Three-game Rivals Match sponsored by Kido | 2 | 11 | Cho Chikun | 7p | Kobayashi Koichi | 8p | B+0.5 | 235 | 1977-11-01 | Three-game Rivals Match sponsored by Kido | 3 | 12 | Cho Chikun | 8p | Kobayashi Koichi | 9p | W+2.5 | 275 | 1979-08-25 | JAA Cup, 2nd | 1 | 13 | Cho Chikun | 8p | Kobayashi Koichi | 9p | B+R | 215 | 1980-02-28 | Honinbo, 35th | League, game 13 | 14 | Cho Chikun | 8p | Kobayashi Koichi | 9p | W+R | 208 | 1980-03-06 | Meijin, 05th | League, game 12 | 15 | Kobayashi Koichi | 9p | Cho Chikun | 9p | B+0.5 | 221 | 1981-10-19 | Kisei, 06th | Challengers' Quarter-Final | 16 | Cho Chikun | 9p | Kobayashi Koichi | 9p | B+2.5 | 234 | 1982-05-24 | Shusai Cup, sponsored by Warner-Pioneer, for top 8 Nihon Ki-in professionals | Final | 17 | Cho Chikun | 9p | Kobayashi Koichi | 9p | W+R | 126 | 1982-05-27 | Honinbo, 37th | Title match, game 1 | 18 | Kobayashi Koichi | 9p | Cho Chikun | 9p | W+2.5 | 233 | 1982-05-31 | Gosei, 07th | Challengers' Final, game 1 | 19 | Kobayashi Koichi | 9p | Cho Chikun | 9p | W+11.5 | 267 | 1982-06-01 | Honinbo, 37th | Title match, game 4 | 20 | Kobayashi Koichi | 9p | Cho Chikun | 9p | W+3.5 | 267 | 1982-06-04 | Honinbo, 37th | Title match, game 2 | 21 | Cho Chikun | 9p | Kobayashi Koichi | 9p | B+6.5 | 227 | 1982-06-10 | Gosei, 07th | Challengers' Final, game 2 | 22 | Cho Chikun | 9p | Kobayashi Koichi | 9p | W+4.5 | 227 | 1982-06-17 | Honinbo, 37th | Title match, game 3 | 23 | Cho Chikun | 9p | Kobayashi Koichi | 9p | B+4,5 | 212 | 1982-07-09 | Honinbo, 37th | Title match, game 5 | 24 | Kobayashi Koichi | 9p | Cho Chikun | 9p | W+R | 152 | 1982-07-22 | Honinbo, 37th | Title match, game 6 | 25 | Kobayashi Koichi | 9p | Cho Chikun | 9p | B+R | 153 | 1984-01-16 | Judan, 22nd | Losers' Section, Final | 26 | Cho Chikun | 9p | Kobayashi Koichi | 9p | B+5.5 | 245 | 1984-04-12 | Honinbo, 39th | League, game 28 | 27 | Cho Chikun | 9p | Kobayashi Koichi | 9p | B+R | 233 | 1984-10-18 | Kakusei, 07th | Final League - 2 | 28 | Cho Chikun | 9p | Kobayashi Koichi | 9p | B+0.5 | 260 | 1985-03-09 | NEC Cup, 04th | Final | 29 | Kobayashi Koichi | 9p | Cho Chikun | 9p | B+5.5 | 281 | 1985-09-12 | Meijin, 10th | Title match, game 1 | 30 | Cho Chikun | 9p | Kobayashi Koichi | 9p | B+R | 229 | 1985-09-26 | Meijin, 10th | Title match, game 2 | 31 | Kobayashi Koichi | 9p | Cho Chikun | 9p | B+R | 147 | 1985-10-03 | Meijin, 10th | Title match, game 3 | 32 | Cho Chikun | 9p | Kobayashi Koichi | 9p | W+R | 186 | 1985-10-17 | Meijin, 10th | Title match, game 4 | 33 | Cho Chikun | 9p | Kobayashi Koichi | 9p | W+R | 242 | 1985-10-20 | Tengen, 11th | Challengers' Final | 34 | Kobayashi Koichi | 9p | Cho Chikun | 9p | W+2.5 | 189 | 1985-10-24 | Meijin, 10th | Title match, game 5 | 35 | Cho Chikun | 9p | Kobayashi Koichi | 9p | B+2.5 | 197 | 1985-11-07 | Meijin, 10th | Title match, game 6 | 36 | Kobayashi Koichi | 9p | Cho Chikun | 9p | B+R | 111 | 1985-11-21 | Meijin, 10th | Title match, game 7 | 37 | Cho Chikun | 9p | Kobayashi Koichi | 9p | W+2.5 | 216 | 1986-01-17 | Kisei, 10th | Title match, game 1 | 38 | Kobayashi Koichi | 9p | Cho Chikun | 9p | W+3.5 | 238 | 1986-01-30 | Kisei, 10th | Title match, game 2 | 39 | Cho Chikun | 9p | Kobayashi Koichi | 9p | W+2.5 | 281 | 1986-02-02 | Hayago, 18th, final | game 01 | 40 | Cho Chikun | 9p | Kobayashi Koichi | 9p | B+1.5 | 251 | 1986-02-06 | Kisei, 10th | Title match, game 3 | 41 | Kobayashi Koichi | 9p | Cho Chikun | 9p | B+2.5 | 265 | 1986-02-20 | Kisei, 10th | Title match, game 4 | 42 | Kobayashi Koichi | 9p | Cho Chikun | 9p | W+0.5 | 196 | 1986-02-23 | Honinbo, 41st | League, game 18 | 43 | Cho Chikun | 9p | Kobayashi Koichi | 9p | W+R | 186 | 1986-02-27 | Kisei, 10th | Title match, game 5 | 44 | Kobayashi Koichi | 9p | Cho Chikun | 9p | B+R | 241 | 1986-03-13 | Kisei, 10th | Title match, game 6 | 45 | Kobayashi Koichi | 9p | Cho Chikun | 9p | W+3.5 | 258 | 1986-03-16 | Hayago, 18th, final | game 02 | 46 | Kobayashi Koichi | 9p | Cho Chikun | 9p | W+R | 194 | 1986-03-30 | Hayago, 18th, finall | game 03 | 47 | Kobayashi Koichi | 9p | Cho Chikun | 9p | W+R | 188 | 1987-03-08 | Haya-go Senshuken, 19th | Final | 48 | Cho Chikun | 9p | Kobayashi Koichi | 9p | W+R | 174 | 1987-03-19 | Honinbo, 42nd | League, game 24 | 49 | Kobayashi Koichi | 9p | Cho Chikun | 9p | B+R | 175 | 1987-08-20 | Meijin, 12th | League, game 34 | 50 | Cho Chikun | 9p | Kobayashi Koichi | 9p | B+7.5 | 230 | 1987-11-12 | Honinbo, 43rd | League, game 05 | 51 | Cho Chikun | 9p | Kobayashi Koichi | 9p | W+2.5 | 232 | 1987-11-19 | Tengen, 13th | Title match, game 1 | 52 | Kobayashi Koichi | 9p | Cho Chikun | 9p | B+1.5 | 246 | 1987-11-27 | Tengen, 13th | Title match, game 2 | 53 | Cho Chikun | 9p | Kobayashi Koichi | 9p | B+R | 127 | 1987-12-14 | Tengen, 13th | Title match, game 3 | 54 | Kobayashi Koichi | 9p | Cho Chikun | 9p | W+R | 162 | 1987-12-23 | Tengen, 13th | Title match, game 4 | 55 | Kobayashi Koichi | 9p | Cho Chikun | 9p | W+0.5 | 230 | 1987-12-28 | Tengen, 13th | Title match, game 5 | 56 | Kobayashi Koichi | 9p | Cho Chikun | 9p | B+R | 87 | 1988-01-21 | Meijin, 13th | League | 57 | Cho Chikun | 9p | Kobayashi Koichi | 9p | W+R | 158 | 1989-03-30 | Honinbo, 44th | League, game 24 | 58 | Kobayashi Koichi | 9p | Cho Chikun | 9p | W+R | 160 | 1990-05-12 | Honinbo, 45th | Title match, game 1 | 59 | Kobayashi Koichi | 9p | Cho Chikun | 9p | W+2.5 | 242 | 1990-05-24 | Judan, 29th | 1-05 | 60 | Cho Chikun | 9p | Kobayashi Koichi | 9p | W+R | 176 | 1990-05-29 | Honinbo, 45th | Title match, game 2 | 61 | Kobayashi Koichi | 9p | Cho Chikun | 9p | B+0.5 | 210 | 1990-06-08 | Honinbo, 45th | Title match, game 3 | 62 | Cho Chikun | 9p | Kobayashi Koichi | 9p | W+R | 98 | 1990-06-20 | Honinbo, 45th | Title match, game 4 | 63 | Kobayashi Koichi | 9p | Cho Chikun | 9p | W+7.5 | 269 | 1990-07-10 | Honinbo, 45th | Title match, game 5 | 64 | Cho Chikun | 9p | Kobayashi Koichi | 9p | B+6.5 | 221 | 1990-07-19 | Honinbo, 45th | Title match, game 6 | 65 | Kobayashi Koichi | 9p | Cho Chikun | 9p | W+3.5 | 230 | 1990-07-26 | Honinbo, 45th | Title match, game 7 | 66 | Cho Chikun | 9p | Kobayashi Koichi | 9p | W+R | 148 | 1991-05-11 | Honinbo, 46th | Title match, game 1 | 67 | Kobayashi Koichi | 9p | Cho Chikun | 9p | B+4,5 | 212 | 1991-05-28 | Honinbo, 46th | Title match, game 2 | 68 | Cho Chikun | 9p | Kobayashi Koichi | 9p | B+10.5 | 234 | 1991-06-08 | Honinbo, 46th | Title match, game 3 | 69 | Cho Chikun | 9p | Kobayashi Koichi | 9p | B+1 | 310 | 1991-06-22 | Haya-go Senshuken, 24th | 1 | 70 | Kobayashi Koichi | 9p | Cho Chikun | 9p | W+5.5 | 292 | 1991-06-28 | Honinbo, 46th | Title match, game 4 | 71 | Cho Chikun | 9p | Kobayashi Koichi | 9p | B+3.5 | 237 | 1991-07-04 | Honinbo, 46th | Title match, game 5 | 72 | Kobayashi Koichi | 9p | Cho Chikun | 9p | W+R | 212 | 1991-07-17 | Honinbo, 46th | Title match, game 6 | 73 | Cho Chikun | 9p | Kobayashi Koichi | 9p | W+R | 218 | 1992-01-23 | Judan, 30th | Losers' Section, Final | 74 | Kobayashi Koichi | 9p | Cho Chikun | 9p | B+R | 179 | 1992-05-16 | Honinbo, 47th | Title match, game 1 | 75 | Cho Chikun | 9p | Kobayashi Koichi | 9p | W+R | 158 | 1992-05-28 | Honinbo, 47th | Title match, game 2 | 76 | Kobayashi Koichi | 9p | Cho Chikun | 9p | B+R | 145 | 1992-06-10 | Honinbo, 47th | Title match, game 3 | 77 | Cho Chikun | 9p | Kobayashi Koichi | 9p | B+9 | 271 | 1992-06-18 | Honinbo, 47th | Title match, game 4 | 78 | Kobayashi Koichi | 9p | Cho Chikun | 9p | W+R | 132 | 1992-06-26 | Honinbo, 47th | Title match, game 5 | 79 | Cho Chikun | 9p | Kobayashi Koichi | 9p | B+3.5 | 189 | 1992-07-09 | Honinbo, 47th | Title match, game 6 | 80 | Cho Chikun | 9p | Kobayashi Koichi | 9p | B+7.5 | 217 | 1992-07-23 | Honinbo, 47th | Title match, game 7 | 81 | Kobayashi Koichi | 9p | Cho Chikun | 9p | B+R | 169 | 1994-01-12 | Kisei, 18th | Title match, game 1 | 82 | Cho Chikun | 9p | Kobayashi Koichi | 9p | B+6.5 | 241 | 1994-01-26 | Kisei, 18th | Title match, game 2 | 83 | Kobayashi Koichi | 9p | Cho Chikun | 9p | W+3.5 | 211 | 1994-02-02 | Kisei, 18th | Title match, game 3 | 84 | Cho Chikun | 9p | Kobayashi Koichi | 9p | B+R | 167 | 1994-02-16 | Kisei, 18th | Title match, game 4 | 85 | Kobayashi Koichi | 9p | Cho Chikun | 9p | B+R | 234 | 1994-02-23 | Kisei, 18th | Title match, game 5 | 86 | Cho Chikun | 9p | Kobayashi Koichi | 9p | B+9.5 | 251 | 1994-03-10 | Kisei, 18th | Title match, game 6 | 87 | Kobayashi Koichi | 9p | Cho Chikun | 9p | B+2.5 | 281 | 1994-03-31 | Kakusei, 16th | Final | 88 | Cho Chikun | 9p | Kobayashi Koichi | 9p | W+R | 164 | 1995-03-04 | NEC Cup, 14th | Final | 89 | Cho Chikun | 9p | Kobayashi Koichi | 9p | B+11.5 | 273 | 1995-03-13 | Kakusei, 17th | Semifinal - 1 | 90 | Kobayashi Koichi | 9p | Cho Chikun | 9p | B+R | 137 | 1995-10-16 | Tengen, 21st | Final | 91 | Kobayashi Koichi | 9p | Cho Chikun | 9p | B+R | 135 | 1995-11-13 | Judan, 34th | Losers' Section, 2-4 | 92 | Cho Chikun | 9p | Kobayashi Koichi | 9p | W+1.5 | 220 | 1995-12-07 | Meijin, 21st | League, game 02 | 93 | Cho Chikun | 9p | Kobayashi Koichi | 9p | B+R | 169 | 1995-12-18 | NHK Cup, 43rd | Round 3 | 94 | Cho Chikun | 9p | Kobayashi Koichi | 9p | W+0.5 | 289 | 1996-10-17 | Judan, 35th | Winners' Section, Semifinal - 2 | 95 | Cho Chikun | 9p | Kobayashi Koichi | 9p | W+8.5 | 256 | 1996-12-16 | Kakusei, 19th | Semifinal - 1 | 96 | Cho Chikun | 9p | Kobayashi Koichi | 9p | W+4.5 | 232 | 1997-04-07 | Ryusei Cup, 06th | Block A, Game 11 | 97 | Kobayashi Koichi | 9p | Cho Chikun | 9p | B+R | 197 | 1997-09-11 | Meijin, 22nd | Title match, game 1 | 98 | Cho Chikun | 9p | Kobayashi Koichi | 9p | B+3.5 | 277 | 1997-09-25 | Meijin, 22nd | Title match, game 2 | 99 | Kobayashi Koichi | 9p | Cho Chikun | 9p | B+R | 149 | 1997-10-02 | Meijin, 22nd | Title match, game 3 | 100 | Cho Chikun | 9p | Kobayashi Koichi | 9p | B+R | 155 | 1997-10-16 | Meijin, 22nd | Title match, game 4 |
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