Games of Cho Chikun against Sakai Takeshi
| Nr. | Date | Event & Result | Mvs |
|---|---|---|---|
| 1 | 1970-09-23 | Oteai (B, B+2) | 198 |
| 2 | 1974-00-00 | 6th Shin'ei, Round 1 (?, +) | ? |
| 3 | 1974-03-00 | Young Stars Gonin-nuki {first to five straight wins} tournament sponsored by Kido, Game 3 (W, W+R) | 156 |
| 4 | 1974-05/06 | Oteai (?, +) | ? |
| 5 | 1976-06-17 | 20th Prime Minister's Cup, Round 3 (W, W+1.5) | 268 |
| 6 | 1980-04-10 | 5th Kisei, 8-dan Semi-final (B, B+4.5) | 274 |
| 7 | 1981-00-00 | 29th NHK Cup, Round 1 (?, +) | |
| 8 | 1981-01-12 | 36th Honinbo League (B, B+R) | 151 |
| 9 | 1981-03-19 | Oteai (W, Jigo) | 268 |
| 10 | 1988-07-28 | 44th Honinbo Preliminary, Final group 2 (B, B+7.5) | 283 |