Games of Cho Chikun in the IBM Hayago Open
The IBM Lightning Open Tournament was open to other nationalities: one from Europe, one from the US and two from China and Korea each. The main tournament was a 64 player knock-out. It was discontinued after the third year.
The list of games is complete.
| Nr. | Date & Opponent | Event & Result | Mvs |
|---|---|---|---|
| 1 | 1988-00-00 Ohira Shuzo | 1st IBM Hayago Open (?, -) | ? |
| 2 | 1989-07-29 Tozawa Akinobu | 2nd IBM Hayago Open, Round 1 (W, B+0.5) | 252 |
| 3 | 1990-06-23 Sanno Hirotaka | 3rd IBM Hayago Open, Round 1 (W, W+R) | 174 |
| 4 | 1990-06-23 Yoda Norimoto | 3rd IBM Hayago Open, Round 2 (W, W+R) | Incompl. |
| 5 | 1990-07-16 Ishida Yoshio | 3rd IBM Hayago Open, Round 3 (B, W+R) | 164 |