6 games in the PremovedPrep archive. Games as White.
| White | Black | Result | ECO | Event | Date |
|---|---|---|---|---|---|
| Kossen, Johannes | Zuiderweg, Edwin | 1/2-1/2 | D74 | Round 7: Kossen, Johannes - Zuiderweg, Edwin | 2025-07-28 |
| Kossen, Johannes | Janssen, Toon | 1-0 | E62 | Round 5: Kossen, Johannes - Janssen, Toon | 2025-07-26 |
| Kossen, Johannes | De Vries, Tobias | 1-0 | E11 | Round 3: Kossen, Johannes - De Vries, Tobias | 2025-07-24 |
| Kossen, Johannes | Manschot, Thomas | 0-1 | E10 | Round 1: Kossen, Johannes - Manschot, Thomas | 2025-07-22 |