Détails pour le tournoi : Insei Competition
| Joueur Noir |
Joueur Blanc |
Résultat |
Date |
| Cho Chikun |
Kosugi Masaru |
B+ |
1968-01-09 |
| Anonymous |
Cho Chikun |
W+R |
1968-01-12 |
| Cho Chikun |
Takano Kazuo |
B+ |
1968-01-14 |
| Cho Chikun |
Toriki Hiroshi |
W+ |
1968-01-19 |
| Seto Katsuhiro |
Cho Chikun |
W+ |
1968-01-21 |
| Cho Chikun |
Ando Akio |
B+ |
1968-01-23 |
| Kasai Koji |
Cho Chikun |
B+5.5 |
1968-01-26 |
| Cho Chikun |
Inoue Kunio |
B+ |
1968-01-28 |
| Kono Yukio |
Cho Chikun |
W+ |
1968-01-30 |
| Cho Chikun |
Ukita Masayuki |
B+ |
1968-02-02 |
| Cho Chikun |
Ishibashi Chinami |
W+ |
1968-02-06 |
| Tokimoto Hajime |
Cho Chikun |
W+ |
1968-02-09 |
| Cho Chikun |
Gaku Yuzuru |
B+ |
1968-02-11 |
| Azuma Michihide |
Cho Chikun |
W+2.5 |
1968-02-13 |