Holger Gruenhagen
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| Hassloch op-B | ??/??/1997 | 57 | Germany |
Most Played Openings as White
| ECO | Opening | Games |
| D32 | Queen's Gambit Declined, Tarrasch defence | 1 games |
| D07 | Queen's Gambit Declined, Chigorin defence | 1 games |
Most Played Openings as Black
| ECO | Opening | Games |
| E20 | Nimzo-Indian defence | 1 games |
| B12 | Caro-Kann defence | 1 games |


Germany