H. Gouwentak
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| NED-ch02 | 08/??/1912 | 0 | Netherlands |
| Hamburg Hauptturnier-A | ??/??/1910 | 0 | Germany |
| NED tour sim | ??/??/1908 | 0 | Netherlands |
| Haarlem sim | ??/??/1896 | 0 | Netherlands |
Most Played Openings as White
| ECO | Opening | Games |
| C14 | French, classical variation | 1 games |
| C49 | Four knights, double Ruy Lopez | 1 games |
| C01 | French, exchange variation | 1 games |
| C52 | Evans gambit | 1 games |
Most Played Openings as Black
| ECO | Opening | Games |
| C49 | Four knights, double Ruy Lopez | 2 games |
| C29 | Vienna gambit | 1 games |
| C25 | Vienna game | 1 games |
| C67 | Ruy Lopez, Berlin defence, open variation | 1 games |


Netherlands
Germany