6 games in the PremovedPrep archive. Games as White.
| White | Black | Result | ECO | Event | Date |
|---|---|---|---|---|---|
| Jack, Sergej | GaÃ, Udo | 1/2-1/2 | A15 | 92. Pfälzischer Schachkongress | 2025-04-19 |
| Jack, Sergej | Roos, Werner | 1/2-1/2 | A13 | 92. Pfälzischer Schachkongress | 2025-04-18 |
| Jack, Sergej | Dannat, Michael | 1/2-1/2 | A15 | 92. Pfälzischer Schachkongress | 2025-04-13 |