R. Grueber
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| NR-ch | ??/??/1997 | 760 |  Germany |
Most Played Openings as White
| ECO | Opening | Games |
| E65 | King's Indian, fianchetto, Yugoslav, 7.O-O | 1 games |
| A12 | English, Caro-Kann defensive system | 1 games |
| A01 | Nimzovich-Larsen attack | 1 games |
| A49 | King's Indian, fianchetto without c4 | 1 games |
Most Played Openings as Black
| ECO | Opening | Games |
| B31 | Sicilian, Nyezhmetdinov-Rossolimo attack (with ...g6, without ...d6) | 1 games |
| E11 | Bogo-Indian defence | 1 games |
| A35 | English, symmetrical variation | 1 games |
| A48 | King's Indian, East Indian defence | 1 games |
