← Oberbank Challenger Open 2026 · Round 6Koellner, Ruben Gideon vs Postlmayer, Jakob, Round 6, Oberbank Challenger Open 2026IMKoellner, Ruben Gideon2531 · GER1–0IMPostlmayer, Jakob2440 · AUT20 Aug, 13:15Board 1 of 20Board 2 →