David Efler
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| CZE-chT2 0607 | 10/15/2006 | 2151 | Czech Republic |
| Rail 4 countries 22nd | 06/23/2006 | 2045 | Switzerland |
| CZE-chT2c 0405 | ??/??/2004 | 2138 | Czech Republic |
| CZE-chTV 0102 | ??/??/2001 | 2093 | Czech Republic |
Most Played Openings as White
| ECO | Opening | Games |
| C02 | French, advance variation | 9 games |
| B01 | Scandinavian (centre counter) defence | 4 games |
| B08 | Pirc, classical (two knights) system | 4 games |
| B85 | Sicilian, Scheveningen, classical variation with ...Qc7 and ...Nc6 | 4 games |
Most Played Openings as Black
| ECO | Opening | Games |
| B22 | Sicilian, Alapin's variation (2.c3) | 6 games |
| A25 | English, Sicilian reversed | 4 games |
| B40 | Sicilian defence | 4 games |
| D58 | Queen's Gambit Declined, Tartakower (Makagonov-Bondarevsky) system | 3 games |
Czech Republic
Male
FIDE ID:

Switzerland