Stefan Pfeiffer
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| NRW Class1 0405 | 10/10/2004 | 2099 | Germany |
| Oberliga NRW2 0102 | 10/??/2001 | 2196 | Germany |
| NRW-Liga II 9091 | ??/??/1991 | 441 | Germany |
| NRW-Liga II 8990 | ??/??/1990 | 288 | Germany |
Most Played Openings as White
| ECO | Opening | Games |
| B38 | Sicilian, accelerated fianchetto, Maroczy bind, 6.Be3 | 1 games |
| D13 | Queen's Gambit Declined Slav, exchange variation | 1 games |
| A17 | English opening | 1 games |
| A07 | Reti, King's Indian attack (Barcza system) | 1 games |
Most Played Openings as Black
| ECO | Opening | Games |
| C02 | French, advance variation | 2 games |
| C17 | French, Winawer, advance variation | 1 games |
| E12 | Queen's Indian defence | 1 games |
| B38 | Sicilian, accelerated fianchetto, Maroczy bind, 6.Be3 | 1 games |


Germany