Ko Chi
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| Haifa ol (Men) | 11/??/1976 | 388 | Israel |
| Nice ol (Men) prel | 06/06/1974 | 2219 | France |
| Nice ol (Men) fin-D | 06/06/1974 | 2201 | France |
| La Habana ol (Men) prel | 10/25/1966 | 0 | Cuba |
Most Played Openings as White
| ECO | Opening | Games |
| B02 | Alekhine's defence | 2 games |
| B84 | Sicilian, Scheveningen (Paulsen), classical variation | 2 games |
| C01 | French, exchange variation | 1 games |
| B06 | Robatsch (modern) defence | 1 games |
Most Played Openings as Black
| ECO | Opening | Games |
| D35 | Queen's Gambit Declined, 3...Nf6 | 1 games |
| C87 | Ruy Lopez, closed, Averbach variation | 1 games |
| A60 | Benoni defence | 1 games |
| A18 | English, Mikenas-Carls variation | 1 games |


Israel
France
Cuba