LJ. Tummers
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| NED-ENG | ??/??/1947 | 0 |  Netherlands |
| NED-ch13 | ??/??/1947 | 0 | Netherlands |
| Leiden-C | 10/??/1946 | 0 | Netherlands |
Most Played Openings as White
| ECO | Opening | Games |
| D19 | Queen's Gambit Declined Slav, Dutch variation | 2 games |
| E72 | King's Indian with e4 & g3 | 1 games |
| D46 | Queen's Gambit Declined semi-Slav, 6.Bd3 | 1 games |
| E33 | Nimzo-Indian, classical, 4...Nc6 | 1 games |
Most Played Openings as Black
| ECO | Opening | Games |
| C77 | Ruy Lopez, Morphy defence | 1 games |
| E68 | King's Indian, fianchetto, classical variation, 8.e4 | 1 games |
| C33 | King's gambit accepted | 1 games |
| E85 | King's Indian, Saemisch, orthodox variation | 1 games |
