IMKoellner, Ruben Gideon
- Federation
- GER
- Rating (latest event)
- 2535
- FIDE ID
- 12993093
- Games here
- 21 (+8 =9 −4)
Tournaments 3
| Tournament | # | Pts | Perf | ± |
|---|---|---|---|---|
| German Bundesliga 2026/27 (Schachbundesliga)SG Solingen | 117 | ½/3 | 2228 | −11 |
| Oberbank Challenger Open 2026 | 1 | 7½/9 | 2556 | +5 |
| German Bundesliga 2025/26Schachfreunde Deizisau | 95 | 4½/9 | 2451 | −8 |
Games 21
- vs GMRoyal, Shreyas2533German Bundesliga 2026/27 (Schachbundesliga) · Round 30
- vs GMSedlak, Nikola2375German Bundesliga 2026/27 (Schachbundesliga) · Round 2½
- vs GMLagarde, Maxime2597German Bundesliga 2026/27 (Schachbundesliga) · Round 10
- vs FMStickler, Florentin2278Oberbank Challenger Open 2026 · Round 9½
- vs IMBadelka, Olga2416Oberbank Challenger Open 2026 · Round 8½
- vs FMSchernthaner, David2380Oberbank Challenger Open 2026 · Round 71
- vs IMPostlmayer, Jakob2440Oberbank Challenger Open 2026 · Round 61
- vs GMHertneck, Gerald2415Oberbank Challenger Open 2026 · Round 51
- vs FMLeitgeb, Julian2298Oberbank Challenger Open 2026 · Round 4½
- vs CMSteinhauer, Artur2187Oberbank Challenger Open 2026 · Round 31
- vs Wunder, Niklas2122Oberbank Challenger Open 2026 · Round 21
- vs Vincenzi, Marco2017Oberbank Challenger Open 2026 · Round 11
- vs IMSchaefer, Markus2362German Bundesliga 2025/26 · Round 151
- vs GMLevin, Felix2414German Bundesliga 2025/26 · Round 14½
- vs GMKjartansson, Gudmundur2407German Bundesliga 2025/26 · Round 131
- vs IMSchmidek, Emil2431German Bundesliga 2025/26 · Round 10½
- vs FMMoehn, Hans2362German Bundesliga 2025/26 · Round 90
- vs GMBacrot, Etienne2631German Bundesliga 2025/26 · Round 8½
- vs GMKrejci, Jan2504German Bundesliga 2025/26 · Round 7½
- vs GMAlonso Rosell, Alvar2544German Bundesliga 2025/26 · Round 120
- vs GMStojanovic, Dalibor2406German Bundesliga 2025/26 · Round 11½