Games of Cho Chikun against Sugiuchi Masao
| Nr. | Date | Event & Result | Mvs |
|---|---|---|---|
| 1 | 1971-03/12 | 9th Pro Best Ten, Preliminary (?, -) | ? |
| 2 | 1972-00-00 | 20th Nihon Ki-in Championship, Preliminary (?, +) | ? |
| 3 | 1976-06-03 | 2nd Tengen, Round 2 (W, B+R) | 197 |
| 4 | 1977-08/10 | 3rd Meijin Tournament, Preliminaries (?, +) | |
| 5 | 1980-05-22 | 19th Judan, Winners' Section, Round 1 (B, B+R) | 157 |
| 6 | 1983-12-08 | 22nd Judan, Losers' Section Semi-final (B, B+R) | 145 |
| 7 | 1984-00-00 | 32nd NHK Cup, Round 1 (?, +) | |
| 8 | 1984-06-07 | 23rd Judan, Winners' Section, Round 1 (B, B+R) | 175 |
| 9 | 1985-00-00 | 33rd NHK Cup, Round 1 (?, +) | |
| 10 | 1985-08-01 | 24th Judan, Winners' Section, Round 2 (B, B+R) | 191 |
| 11 | 1986-03-26 | 41st Honinbo League (B, W+R) | 208 |