Von Hoorn
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| Amsterdam CC-ch | ??/??/1927 | 0 |  Netherlands |
| NED-ch | ??/??/1925 | 0 | Netherlands |
| Amsterdam1 | ??/??/1923 | 0 | Netherlands |
Von Hoorn Repertoire with White pieces (most played)
| ECO | Opening | Games |
| E67 | King's Indian, fianchetto with ...Nd7 | 1 games |
| D71 | Neo-Gruenfeld, 5.cd | 1 games |
Von Hoorn Repertoire with Black pieces (most played)
| ECO | Opening | Games |
| D80 | Gruenfeld defence | 1 games |
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