Claude Olsommer
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| Europe-chT qual | 10/??/1963 | 0 | Germany |
| ITA-SUI m | ??/??/1958 | 0 | Italy |
| SUI-chB | ??/??/1950 | 0 | Switzerland |
Most Played Openings as White
| ECO | Opening | Games |
| B07 | Pirc defence | 1 games |
| A49 | King's Indian, fianchetto without c4 | 1 games |
| D30 | Queen's gambit declined | 1 games |
Most Played Openings as Black
| ECO | Opening | Games |
| D37 | Queen's Gambit Declined, 4.Nf3 | 1 games |
| C17 | French, Winawer, advance variation | 1 games |
| D15 | Queen's Gambit Declined Slav, 4.Nc3 | 1 games |


Germany
Italy
Switzerland