O. Muller
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| CZE-ch op | ??/??/1999 | 1350 | Czech Republic |
| Isle of Lewis op | ??/??/1995 | 1272 | Scotland |
Most Played Openings as White
| ECO | Opening | Games |
| D85 | Gruenfeld, exchange variation | 1 games |
| E97 | King's Indian, orthodox, Aronin-Taimanov variation (Yugoslav attack / Mar del Plata variation) | 1 games |
| D13 | Queen's Gambit Declined Slav, exchange variation | 1 games |
| A55 | Old Indian, main line | 1 games |
Most Played Openings as Black
| ECO | Opening | Games |
| B77 | Sicilian, dragon, Yugoslav attack, 9.Bc4 | 1 games |
| B76 | Sicilian, dragon, Yugoslav attack, 7...O-O | 1 games |
| D02 | Queen's pawn game | 1 games |
| B21 | Sicilian, Grand Prix attack | 1 games |


Czech Republic
Scotland