Games of Cho Chikun in the Prime Minister's Cup
The Prime Minister's Cup was open to players 7 dan or under. It ran 25 terms from 1957 to 1981. Until 1974 the title holder was decided by a single game, but after that by a best-of-three match.
This is one of the few titles that Cho never won. The list of games is complete, with the exception of the preliminary rounds, for which I do not have any data yet.
| Nr. | Date & Opponent | Event & Result | Mvs |
|---|---|---|---|
| 1 | 1971-12-09 Naganuma Makoto | 16th Prime Minister's Cup, Round 1 (B, B+R) | 91 |
| 2 | 1972-02-10 Matsumoto Tokuji | 16th Prime Minister's Cup, Round 2 (B, B+R) | 179 |
| 3 | 1972-05-31 Kuwahara Munehisa | 16th Prime Minister's Cup, Round 3 (W, W+R) | 144 |
| 4 | 1972-07-20 Kosugi Kiyoshi | 16th Prime Minister's Cup, Quarter-final (B, B+R) | 171 |
| 5 | 1972-08/10 Nakaoka Jiro | 16th Prime Minister's Cup, Semi-final (W, W+11.5) | 215 |
| 6 | 1972-11-01 Kobayashi Koichi | 16th Prime Minister's Cup Final (W, B+R) | 227 |
| 7 | 1972-12-27 Kaji Kazutame | 17th Prime Minister's Cup, Round 1 (B, B+R) | 183 |
| 8 | 1973-02-21 Haruyama Isamu | 17th Prime Minister's Cup, Round 2 (W, B+R) | 177 |
| 9 | 1974-01-10 Ishigure Ikuro | 18th Prime Minister's Cup, Preliminaries (W, W+6.5) | 187 |
| 10 | 1974-03-07 Kanno Kiyonori | 18th Prime Minister's Cup, Round 1 (W, W+R) | 224 |
| 11 | 1974-03/12 Chino Tadahiko | 18th Prime Minister's Cup, Round 2 (?, -) | ? |
| 12 | 1974-11-27 Haruyama Isamu | 19th Prime Minister's Cup, Round 1 (W, W+8.5) | 213 |
| 13 | 1975-02-27 Kawamoto Noboru | 19th Prime Minister's Cup, Round 2 (B, B+R) | 137 |
| 14 | 1975-05-15 Kobayashi Koichi | 19th Prime Minister's Cup, Round 3 (W, B+R) | 217 |
| 15 | 1976-02-22 Kanashima Tadashi | 20th Prime Minister's Cup, Round 1 (B, B+R) | 111 |
| 16 | 1976-04-01 Kamimura Kunio | 20th Prime Minister's Cup, Round 2 (B, B+R) | 141 |
| 17 | 1976-06-17 Sakai Takeshi | 20th Prime Minister's Cup, Round 3 (W, W+1.5) | 268 |
| 18 | 1976-07-15 Awaji Shuzo | 20th Prime Minister's Cup, Quarter-final (B, B+R) | 175 |
| 19 | 1976-09-09 Kobayashi Koichi | 20th Prime Minister's Cup, Semi-final (B, W+2.5) | 219 |
| 20 | 1977-01-31 Kamimura Kunio | 21st Prime Minister's Cup, Round 2 (B, B+1.5) | 233 |
| 21 | 1977-05-14 Kageyama Toshiro | 21st Prime Minister's Cup, Round 3 (B, W+5.5) | 213 |