Ireneus Kostowski
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| Goch op 14th | 10/02/2003 | 1582 | Germany |
| Goch op 13th | 10/03/2002 | 2058 | Germany |
| Nord Cup 1st | ??/??/1995 | 2035 | Germany |
Most Played Openings as White
| ECO | Opening | Games |
| A85 | Dutch with c4 & Nc3 | 1 games |
| D32 | Queen's Gambit Declined, Tarrasch defence | 1 games |
| D36 | Queen's Gambit Declined, exchange, positional line, 6.Qc2 | 1 games |
Most Played Openings as Black
| ECO | Opening | Games |
| B01 | Scandinavian (centre counter) defence | 2 games |
| D45 | Queen's Gambit Declined semi-Slav, 5.e3 | 1 games |
| A00 | Polish (Sokolsky) opening | 1 games |
| D51 | Queen's Gambit Declined, 4.Bg5 Nbd7 | 1 games |
Germany
FIDE ID:

