Male
FIDE ID:
Zyon Kollen
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| 2nd Bundesliga West 23-24 | 10/21/2023 | 2320 |  Germany |
| TCh-BEL 2023-24 | 09/24/2023 | 2265 |  Belgium |
| Dutch League 2023-24 | 09/16/2023 | 2342 |  Netherlands |
| ch-NED Qualification 2024 | 06/08/2024 | 2265 | Netherlands |
Zyon Kollen Repertoire with White pieces (most played)
| ECO | Opening | Games |
| A00 | Polish (Sokolsky) opening | 8 games |
| B90 | Sicilian, Najdorf | 8 games |
| C69 | Ruy Lopez, exchange variation, 5.O-O | 4 games |
| B48 | Sicilian, Taimanov variation | 3 games |
Zyon Kollen Repertoire with Black pieces (most played)
| ECO | Opening | Games |
| E06 | Catalan, closed, 5.Nf3 | 5 games |
| C02 | French, advance variation | 4 games |
| A05 | Reti opening | 4 games |
| C18 | French, Winawer, advance variation | 4 games |
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