2 games · 2023–2026 · 2 classical · 0 online
Koellner 02 draws0 Karthik
50.0% for Koellner
Openings between them
| C78 | Ruy Lopez: Morphy Defense, Møller Variation | 1 | 50.0% |
| D04 | Queen's Pawn Game: Colle System | 1 | 50.0% |
All games
| Karthik, V42594 | ½-½ | Koellner, Ruben Gideon2506 | grenke Chess Open 2026 | 2026 |
| Koellner, Ruben Gideon2429 | ½-½ | Karthik, V42548 | 50th NRW Cup 2023 | 2023 |