H. Petersen
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| Haifa ol (Men) | 11/??/1976 | 388 |  Israel |
Most Played Openings as White
| ECO | Opening | Games |
| C90 | Ruy Lopez, closed (with ...d6) | 1 games |
| C92 | Ruy Lopez, closed, 9.h3 | 1 games |
| C99 | Ruy Lopez, closed, Chigorin, 12...c5d4 | 1 games |
| B06 | Robatsch (modern) defence | 1 games |
Most Played Openings as Black
| ECO | Opening | Games |
| D00 | Queen's pawn game | 1 games |
| A03 | Bird's opening | 1 games |
| E22 | Nimzo-Indian, Spielmann variation | 1 games |
| C99 | Ruy Lopez, closed, Chigorin, 12...c5d4 | 1 games |
