O. Estenger
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| USA op | ??/??/1972 | 0 |  United States |
Most Played Openings as White
| ECO | Opening | Games |
| D02 | Queen's pawn game | 1 games |
| B28 | Sicilian, O'Kelly variation | 1 games |
Most Played Openings as Black
| ECO | Opening | Games |
| B85 | Sicilian, Scheveningen, classical variation with ...Qc7 and ...Nc6 | 1 games |
