1 games · 2025–2025 · 1 classical · 0 online
Koster 01 draws0 Duijker
50.0% for Koster
Openings between them
| D21 | Queen's Gambit Accepted: Rosenthal Variation | 1 | 50.0% |
All games
| Koster, R2307 | ½-½ | Duijker, R2148 | 61st Groningen Open 2025 | 2025 |
1 games · 2025–2025 · 1 classical · 0 online
50.0% for Koster
| D21 | Queen's Gambit Accepted: Rosenthal Variation | 1 | 50.0% |
| Koster, R2307 | ½-½ | Duijker, R2148 | 61st Groningen Open 2025 | 2025 |