← Oberbank Challenger Open 2026 · Round 1Ertl, Taliesin vs Koellner, Aaron Noah, Round 1, Oberbank Challenger Open 2026Ertl, Taliesin1942 · AUT0–1CMKoellner, Aaron Noah2202 · GER15 Aug, 13:15← Board 16Board 17 of 20Board 18 →