J. Jacobsen
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| Nordic-chT | 10/??/1985 | 1988 | Finland |
Most Played Openings as White
| ECO | Opening | Games |
| C92 | Ruy Lopez, closed, 9.h3 | 1 games |
| B04 | Alekhine's defence, modern variation | 1 games |
| B85 | Sicilian, Scheveningen, classical variation with ...Qc7 and ...Nc6 | 1 games |
Most Played Openings as Black
| ECO | Opening | Games |
| B33 | Sicilian defence | 2 games |
| B26 | Sicilian, closed, 6.Be3 | 1 games |
| A65 | Benoni, 6.e4 | 1 games |


Finland