Jean Stefan Koskivirta
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| Verbandsliga Sued Baden 0405 | 10/10/2004 | 1050 | Germany |
| GER-FRA mT | 07/??/2004 | 2100 | Germany |
| Oberliga Baden 0304 | 10/12/2003 | 1946 | Germany |
| Baden-Elsass m | 09/14/2003 | 2145 | Germany |
Most Played Openings as White
| ECO | Opening | Games |
| C01 | French, exchange variation | 3 games |
| B01 | Scandinavian (centre counter) defence | 2 games |
| B51 | Sicilian, Canal-Sokolsky (Nimzovich-Rossolimo, Moscow) attack | 2 games |
| B32 | Sicilian defence | 1 games |
Most Played Openings as Black
| ECO | Opening | Games |
| E97 | King's Indian, orthodox, Aronin-Taimanov variation (Yugoslav attack / Mar del Plata variation) | 1 games |
| A02 | Bird's opening | 1 games |
| B42 | Sicilian, Kan, 5.Bd3 | 1 games |
| A31 | English, symmetrical, Benoni formation | 1 games |
France
Male
FIDE ID:

Germany