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: 2026-10-13 (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 |
|---|---|---|---|---|---|---|---|---|---|
| 201 | 2024-10-01 | Titled Tue 1st Oct Early | chess.com INT | 2 | Ruben Gideon Koellner | Daniel Ser | 1-0 | 31 | Open |
| 202 | 2024-10-01 | Titled Tue 1st Oct Early | chess.com INT | 1 | Yotam Shohat | Ruben Gideon Koellner | 0-1 | 60 | Open |
| 203 | 2024-10-01 | Titled Tue 1st Oct Late | chess.com INT | 1 | Ruben Gideon Koellner | Qi Pang | 0-1 | 74 | Open |
| 204 | 2024-10-01 | Titled Tue 1st Oct Early | chess.com INT | 11 | Ruben Gideon Koellner | Edgar Mamedov | 0-1 | 43 | Open |
| 205 | 2024-10-01 | Titled Tue 1st Oct Late | chess.com INT | 11 | Ruben Gideon Koellner | Reza Mahdavi | 0-1 | 33 | Open |
| 206 | 2024-10-01 | Titled Tue 1st Oct Late | chess.com INT | 10 | Jaime Santos Latasa | Ruben Gideon Koellner | 0-1 | 32 | Open |
| 207 | 2024-10-01 | Titled Tue 1st Oct Early | chess.com INT | 10 | Michal Mazurkiewicz | Ruben Gideon Koellner | 0-1 | 45 | Open |
| 208 | 2024-09-25 | Julius Baer Gen Cup Pl/In | chess.com INT | 9 | Ruben Gideon Koellner | S.P. Sethuraman | 1-0 | 36 | Open |
| 209 | 2024-09-25 | Julius Baer Gen Cup Pl/In | chess.com INT | 8 | Pavel Smirnov | Ruben Gideon Koellner | 1-0 | 63 | Open |
| 210 | 2024-09-25 | Julius Baer Gen Cup Pl/In | chess.com INT | 7 | Ruben Gideon Koellner | Vladimir Malakhov | 1/2-1/2 | 71 | Open |
| 211 | 2024-09-25 | Julius Baer Gen Cup Pl/In | chess.com INT | 6 | Leinier Dominguez Perez | Ruben Gideon Koellner | 1-0 | 35 | Open |
| 212 | 2024-09-25 | Julius Baer Gen Cup Pl/In | chess.com INT | 5 | Ruben Gideon Koellner | Maksim Chigaev | 1/2-1/2 | 49 | Open |
| 213 | 2024-09-25 | Julius Baer Gen Cup Pl/In | chess.com INT | 4 | Benjamin Gledura | Ruben Gideon Koellner | 1-0 | 50 | Open |
| 214 | 2024-09-25 | Julius Baer Gen Cup Pl/In | chess.com INT | 3 | Jakhongir Vakhidov | Ruben Gideon Koellner | 0-1 | 63 | Open |
| 215 | 2024-09-25 | Julius Baer Gen Cup Pl/In | chess.com INT | 2 | Ruben Gideon Koellner | Grigoriy Oparin | 0-1 | 35 | Open |
| 216 | 2024-09-25 | Julius Baer Gen Cup Pl/In | chess.com INT | 1 | Ruben Gideon Koellner | Ngoc Truong Son Nguyen | 1-0 | 77 | Open |
| 217 | 2024-09-24 | Titled Tue 24th Sep Late | chess.com INT | 7 | German Spata | Ruben Gideon Koellner | 1-0 | 76 | Open |
| 218 | 2024-09-24 | Titled Tue 24th Sep Late | chess.com INT | 6 | Ruben Gideon Koellner | Olexandr Bortnyk | 0-1 | 30 | Open |
| 219 | 2024-09-24 | Titled Tue 24th Sep Late | chess.com INT | 5 | Cristi Machidon | Ruben Gideon Koellner | 0-1 | 39 | Open |
| 220 | 2024-09-24 | Titled Tue 24th Sep Late | chess.com INT | 4 | David Paravyan | Ruben Gideon Koellner | 1-0 | 28 | Open |
| 221 | 2024-09-24 | Titled Tue 24th Sep Late | chess.com INT | 3 | Ruben Gideon Koellner | Rasmus Svane | 1/2-1/2 | 62 | Open |
| 222 | 2024-09-24 | Titled Tue 24th Sep Late | chess.com INT | 2 | Ali Elier | Ruben Gideon Koellner | 0-1 | 79 | Open |
| 223 | 2024-09-24 | Titled Tue 24th Sep Late | chess.com INT | 1 | Ruben Gideon Koellner | Luis Fernandez Siles | 1-0 | 56 | Open |
| 224 | 2024-09-10 | Titled Tue 10th Sep Late | chess.com INT | 8 | Samuel Fieberg | Ruben Gideon Koellner | 1-0 | 47 | Open |
| 225 | 2024-09-10 | Titled Tue 10th Sep Late | chess.com INT | 7 | Casper Liu | Ruben Gideon Koellner | 1/2-1/2 | 46 | Open |
| 226 | 2024-09-10 | Titled Tue 10th Sep Late | chess.com INT | 6 | Ruben Gideon Koellner | Yasel Borges Ferias | 0-1 | 40 | Open |
| 227 | 2024-09-10 | Titled Tue 10th Sep Late | chess.com INT | 5 | Mark Plotkin | Ruben Gideon Koellner | 0-1 | 54 | Open |
| 228 | 2024-09-10 | Titled Tue 10th Sep Late | chess.com INT | 3 | Ruben Gideon Koellner | Artin Ashraf | 0-1 | 55 | Open |
| 229 | 2024-09-10 | Titled Tue 10th Sep Late | chess.com INT | 2 | Ruben Gideon Koellner | Volodymyr Vusatiuk | 1-0 | 33 | Open |
| 230 | 2024-09-10 | Titled Tue 10th Sep Late | chess.com INT | 1 | Jacorey Bynum | Ruben Gideon Koellner | 0-1 | 38 | Open |
| 231 | 2024-09-08 | 6th Bamberg Open 2024 | Bamberg GER | 7.3 | Yelyzaveta Hrebenshchykova | Ruben Gideon Koellner | 1/2-1/2 | 22 | Open |
| 232 | 2024-09-07 | 6th Bamberg Open 2024 | Bamberg GER | 6.3 | Ruben Gideon Koellner | Edwin Fischer | 1-0 | 38 | Open |
| 233 | 2024-09-07 | 6th Bamberg Open 2024 | Bamberg GER | 5.1 | Yevhenii Yelisieiev | Ruben Gideon Koellner | 1-0 | 13 | Open |
| 234 | 2024-09-06 | 6th Bamberg Open 2024 | Bamberg GER | 4.1 | Ruben Gideon Koellner | Cedric Chassard | 1-0 | 22 | Open |
| 235 | 2024-09-05 | 6th Bamberg Open 2024 | Bamberg GER | 3.1 | Johannes Feldmann | Ruben Gideon Koellner | 0-1 | 46 | Open |
| 236 | 2024-09-05 | 6th Bamberg Open 2024 | Bamberg GER | 2.1 | Ruben Gideon Koellner | Fabian Meulner | 1-0 | 24 | Open |
| 237 | 2024-09-04 | 6th Bamberg Open 2024 | Bamberg GER | 1.1 | Christian Strahl | Ruben Gideon Koellner | 0-1 | 37 | Open |
| 238 | 2024-08-27 | Titled Tue 27th Aug Late | chess.com INT | 2 | Deepak Aaron | Ruben Gideon Koellner | 1-0 | 22 | Open |
| 239 | 2024-08-27 | Titled Tue 27th Aug Late | chess.com INT | 1 | Ruben Gideon Koellner | Roberto Al Avila Bautista | 1-0 | 55 | Open |
| 240 | 2024-08-20 | Titled Tue 20th Aug Early | chess.com INT | 4 | Daniel Gutierrez Olivares | Ruben Gideon Koellner | 1-0 | 42 | Open |
| 241 | 2024-08-20 | Titled Tue 20th Aug Early | chess.com INT | 3 | Ruben Gideon Koellner | Nikolay Pavlov | 1-0 | 39 | Open |
| 242 | 2024-08-20 | Titled Tue 20th Aug Early | chess.com INT | 2 | Logan C Shafer | Ruben Gideon Koellner | 0-1 | 36 | Open |
| 243 | 2024-08-20 | Titled Tue 20th Aug Early | chess.com INT | 1 | Ruben Gideon Koellner | Viacheslav Slovineanu | 0-1 | 31 | Open |
| 244 | 2024-08-11 | 17th Arad Open 2024 | Arad ROU | 9.22 | Ruben Gideon Koellner | Tamas Gunes Ongut | 0-1 | 60 | Open |
| 245 | 2024-08-10 | 17th Arad Open 2024 | Arad ROU | 8.17 | Armand Veress | Ruben Gideon Koellner | 1-0 | 36 | Open |
| 246 | 2024-08-09 | 17th Arad Open 2024 | Arad ROU | 7.4 | Max Warmerdam | Ruben Gideon Koellner | 1/2-1/2 | 69 | Open |
| 247 | 2024-08-08 | 17th Arad Open 2024 | Arad ROU | 6.9 | Ruben Gideon Koellner | Constantin Lupulescu | 1/2-1/2 | 30 | Open |
| 248 | 2024-08-08 | 17th Arad Open 2024 | Arad ROU | 5.19 | Ruben Gideon Koellner | Viktoria Radeva | 1-0 | 59 | Open |
| 249 | 2024-08-07 | 17th Arad Open 2024 | Arad ROU | 4.7 | Pouya Idani | Ruben Gideon Koellner | 1/2-1/2 | 55 | Open |
| 250 | 2024-08-06 | 17th Arad Open 2024 | Arad ROU | 3.26 | Ruben Gideon Koellner | Mihai-Edward Padurariu | 1-0 | 33 | Open |
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