← Oberbank Challenger Open 2026 · Round 9Stickler, Florentin vs Koellner, Ruben Gideon, Round 9, Oberbank Challenger Open 2026FMStickler, Florentin2278 · AUT½–½IMKoellner, Ruben Gideon2531 · GER23 Aug, 8:15Board 1 of 20Board 2 →