Ernst Jacobsen
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| Copenhagen | ??/??/1923 | 0 |  Denmark |
Ernst Jacobsen Repertoire with White pieces (most played)
| ECO | Opening | Games |
| D58 | Queen's Gambit Declined, Tartakower (Makagonov-Bondarevsky) system | 1 games |
| A57 | Benko gambit | 1 games |
| B16 | Caro-Kann, Bronstein-Larsen variation | 1 games |
| E12 | Queen's Indian defence | 1 games |
Ernst Jacobsen Repertoire with Black pieces (most played)
| ECO | Opening | Games |
| C45 | Scotch game | 1 games |
| C33 | King's gambit accepted | 1 games |
| D10 | Queen's Gambit Declined Slav defence | 1 games |
| D53 | Queen's Gambit Declined, 4.Bg5 Be7 | 1 games |
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