Marek Kosny
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| Rail 4 countries 22nd | 06/23/2006 | 2045 | Switzerland |
| Warszawa Cup5-B op | 05/??/1979 | 217 | Poland |
| Polonia-B | 05/30/1978 | 2069 | Poland |
Most Played Openings as White
| ECO | Opening | Games |
| A38 | English, symmetrical variation | 3 games |
| A88 | Dutch, Leningrad, main variation with c6 | 2 games |
| A21 | English opening | 1 games |
| A34 | English, symmetrical variation | 1 games |
Most Played Openings as Black
| ECO | Opening | Games |
| B03 | Alekhine's defence | 2 games |
| B02 | Alekhine's defence | 2 games |
| D37 | Queen's Gambit Declined, 4.Nf3 | 1 games |
| D79 | Neo-Gruenfeld, 6.O-O, main line | 1 games |
Poland
Male
FIDE ID:

Switzerland