IM Ruben Gideon Koellner
Country
GER
Birth Year
2004 (Age ≈22)
Gender
M
Title
International Master
FIDE ID
12993093
FIDE rating history
View rating lists
Available Games
Published games available in our archive; coverage varies by tournament. Archive last checked: 2026-10-20 (UTC).
Online games are identified from known tournament names, playing sites and PGN mode. Other games are listed as OTB (over-the-board).
| # | Date | Event | Site | Round | White | Black | Result | Moves | View |
|---|---|---|---|---|---|---|---|---|---|
| 251 | 2024-08-06 | 17th Arad Open 2024 | Arad ROU | 2.16 | Andrei Negrean | Ruben Gideon Koellner | 1/2-1/2 | 55 | Open |
| 252 | 2024-08-05 | 17th Arad Open 2024 | Arad ROU | 1.23 | Ruben Gideon Koellner | Tudor-Gabriel Danila | 1-0 | 35 | Open |
| 253 | 2024-08-04 | Cristina Foisor Mem Rapid | Timisoara ROU | 9.34 | Ruben Gideon Koellner | Iustin Toma | 1-0 | 43 | Open |
| 254 | 2024-08-04 | Cristina Foisor Mem Rapid | Timisoara ROU | 8.22 | Ruben Gideon Koellner | Lucian-Ioan Filip | 0-1 | 69 | Open |
| 255 | 2024-08-04 | Cristina Foisor Mem Rapid | Timisoara ROU | 7.5 | Bogdan-Daniel Deac | Ruben Gideon Koellner | 1-0 | 58 | Open |
| 256 | 2024-08-04 | Cristina Foisor Mem Rapid | Timisoara ROU | 6.4 | Ruben Gideon Koellner | Alexander Motylev | 1/2-1/2 | 24 | Open |
| 257 | 2024-08-04 | Cristina Foisor Mem Rapid | Timisoara ROU | 5.5 | Bojan Maksimovic | Ruben Gideon Koellner | 1/2-1/2 | 62 | Open |
| 258 | 2024-08-03 | Cristina Foisor Mem Rapid | Timisoara ROU | 4.16 | Ruben Gideon Koellner | Sebastian Poltorak | 1-0 | 44 | Open |
| 259 | 2024-08-03 | Cristina Foisor Mem Rapid | Timisoara ROU | 3.27 | David Cr. Radu | Ruben Gideon Koellner | 0-1 | 35 | Open |
| 260 | 2024-08-03 | Cristina Foisor Mem Rapid | Timisoara ROU | 2.29 | Ruben Gideon Koellner | Dragos-Olivar Minescu | 1-0 | 35 | Open |
| 261 | 2024-08-03 | Cristina Foisor Mem Rapid | Timisoara ROU | 1.3 | Raul Cristian Codru | Ruben Gideon Koellner | 0-1 | 24 | Open |
| 262 | 2024-07-23 | Titled Tue 23rd Jul Late | chess.com INT | 9 | Ruben Gideon Koellner | Imangali Akhilbay | 0-1 | 53 | Open |
| 263 | 2024-07-23 | Titled Tue 23rd Jul Late | chess.com INT | 8 | Ward Al-Tarboush | Ruben Gideon Koellner | 0-1 | 73 | Open |
| 264 | 2024-07-23 | Titled Tue 23rd Jul Late | chess.com INT | 7 | Ruben Gideon Koellner | Alejo Ismael Gimenez Aguirre | 1-0 | 22 | Open |
| 265 | 2024-07-23 | Titled Tue 23rd Jul Late | chess.com INT | 6 | Antonio Carlos Bambino Filho | Ruben Gideon Koellner | 0-1 | 60 | Open |
| 266 | 2024-07-23 | Titled Tue 23rd Jul Late | chess.com INT | 5 | Cristhian Montero Martinez | Ruben Gideon Koellner | 0-1 | 57 | Open |
| 267 | 2024-07-23 | Titled Tue 23rd Jul Late | chess.com INT | 4 | Ruben Gideon Koellner | Kenneth Odeh | 1-0 | 45 | Open |
| 268 | 2024-07-23 | Titled Tue 23rd Jul Late | chess.com INT | 3 | Joshua Meng | Ruben Gideon Koellner | 1/2-1/2 | 47 | Open |
| 269 | 2024-07-23 | Titled Tue 23rd Jul Late | chess.com INT | 2 | Ruben Gideon Koellner | Dawton Almino Lemos | 0-1 | 97 | Open |
| 270 | 2024-07-23 | Titled Tue 23rd Jul Late | chess.com INT | 1 | Mina Wael Sabry | Ruben Gideon Koellner | 1-0 | 63 | Open |
| 271 | 2024-07-21 | 37th Sonnenterrasse Open | Schwarzach AUT | 9.1 | Ruben Gideon Koellner | Davor Rogic | 1-0 | 36 | Open |
| 272 | 2024-07-20 | 37th Sonnenterrasse Open | Schwarzach AUT | 8.1 | Johannes Lerch | Ruben Gideon Koellner | 1/2-1/2 | 11 | Open |
| 273 | 2024-07-19 | 37th Sonnenterrasse Open | Schwarzach AUT | 7.1 | Ruben Gideon Koellner | Cedric Chassard | 1-0 | 44 | Open |
| 274 | 2024-07-18 | 37th Sonnenterrasse Open | Schwarzach AUT | 6.1 | Robert Zelcic | Ruben Gideon Koellner | 0-1 | 46 | Open |
| 275 | 2024-07-17 | 37th Sonnenterrasse Open | Schwarzach AUT | 5.1 | Ruben Gideon Koellner | Matija Ostovic | 1-0 | 42 | Open |
| 276 | 2024-07-16 | 37th Sonnenterrasse Open | Schwarzach AUT | 4.1 | Moritz Weishaeutel | Ruben Gideon Koellner | 0-1 | 44 | Open |
| 277 | 2024-07-15 | 37th Sonnenterrasse Open | Schwarzach AUT | 3.1 | Ruben Gideon Koellner | Matic Lavrencic | 1/2-1/2 | 41 | Open |
| 278 | 2024-07-14 | 37th Sonnenterrasse Open | Schwarzach AUT | 2.1 | Andre Kunz | Ruben Gideon Koellner | 0-1 | 54 | Open |
| 279 | 2024-07-14 | 37th Sonnenterrasse Open | Schwarzach AUT | 1.1 | Ruben Gideon Koellner | Duluu Tumur-Ochir | 1-0 | 31 | Open |
| 280 | 2024-07-13 | 43rd St Veit Open 2024 | St Veit AUT | 9.1 | Ruben Gideon Koellner | Christopher Schwarhofer | 1-0 | 32 | Open |
| 281 | 2024-07-12 | 43rd St Veit Open 2024 | St Veit AUT | 8.1 | Leon Mazi | Ruben Gideon Koellner | 1/2-1/2 | 57 | Open |
| 282 | 2024-07-11 | 43rd St Veit Open 2024 | St Veit AUT | 7.1 | Ruben Gideon Koellner | David Schernthaner | 1-0 | 68 | Open |
| 283 | 2024-07-10 | 43rd St Veit Open 2024 | St Veit AUT | 6.1 | Tobias Kuegel | Ruben Gideon Koellner | 1/2-1/2 | 43 | Open |
| 284 | 2024-07-09 | 43rd St Veit Open 2024 | St Veit AUT | 5.1 | Ruben Gideon Koellner | Marin Bosiocic | 1-0 | 86 | Open |
| 285 | 2024-07-08 | 43rd St Veit Open 2024 | St Veit AUT | 4.2 | Klaudia Kulon | Ruben Gideon Koellner | 0-1 | 57 | Open |
| 286 | 2024-07-07 | 43rd St Veit Open 2024 | St Veit AUT | 3.2 | Ruben Gideon Koellner | Jonas Rempe | 1-0 | 32 | Open |
| 287 | 2024-07-07 | 43rd St Veit Open 2024 | St Veit AUT | 2.2 | Fred Wegerer | Ruben Gideon Koellner | 0-1 | 43 | Open |
| 288 | 2024-07-06 | 43rd St Veit Open 2024 | St Veit AUT | 1.2 | Ruben Gideon Koellner | David Martinovic | 1-0 | 31 | Open |
| 289 | 2024-07-02 | Titled Tue 2nd Jul Late | chess.com INT | 9 | Ruben Gideon Koellner | Hugo Guillemette | 1-0 | 40 | Open |
| 290 | 2024-07-02 | Titled Tue 2nd Jul Late | chess.com INT | 8 | Sergio Adan Bermudez | Ruben Gideon Koellner | 0-1 | 29 | Open |
| 291 | 2024-07-02 | Titled Tue 2nd Jul Late | chess.com INT | 7 | Ruben Gideon Koellner | Oleg Papayan | 1-0 | 24 | Open |
| 292 | 2024-07-02 | Titled Tue 2nd Jul Late | chess.com INT | 6 | Ruben Gideon Koellner | Kevin Yang | 1/2-1/2 | 80 | Open |
| 293 | 2024-07-02 | Titled Tue 2nd Jul Late | chess.com INT | 5 | William Safranek | Ruben Gideon Koellner | 0-1 | 90 | Open |
| 294 | 2024-07-02 | Titled Tue 2nd Jul Late | chess.com INT | 4 | Ruben Gideon Koellner | Vladislav Lymar | 0-1 | 51 | Open |
| 295 | 2024-07-02 | Titled Tue 2nd Jul Late | chess.com INT | 3 | Javokhir Sindarov | Ruben Gideon Koellner | 1-0 | 74 | Open |
| 296 | 2024-07-02 | Titled Tue 2nd Jul Late | chess.com INT | 2 | Ruben Gideon Koellner | Daniel Pinto | 1-0 | 30 | Open |
| 297 | 2024-07-02 | Titled Tue 2nd Jul Late | chess.com INT | 1 | Teimur Toktomushev | Ruben Gideon Koellner | 0-1 | 39 | Open |
| 298 | 2024-07-02 | Titled Tue 2nd Jul Late | chess.com INT | 10 | Ruben Gideon Koellner | Kirill Klukin | 0-1 | 78 | Open |
| 299 | 2024-05-28 | Titled Tue 28th May Early | chess.com INT | 8 | Sergei Ljukin | Ruben Gideon Koellner | 1-0 | 52 | Open |
| 300 | 2024-05-28 | Titled Tue 28th May Early | chess.com INT | 7 | Ruben Gideon Koellner | Dmitry Kononenko | 1-0 | 58 | Open |
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