Ruben Gideon Koellner
Country
GER
Birth Year
2004
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 |
|---|---|---|---|---|---|---|---|---|---|
| 51 | 2025-11-15 | Rainer Radtke Mem Rapid | Berlin GER | 1.13 | Ruben Gideon Koellner | Alina Damrich | 1-0 | 34 | Open |
| 52 | 2025-08-18 | Abu Dhabi Masters Online | chess.com INT | 4 | Sharath Radhakrishnan | Ruben Gideon Koellner | 1-0 | 47 | Open |
| 53 | 2025-08-18 | Abu Dhabi Masters Online | chess.com INT | 3 | Ruben Gideon Koellner | Mikkel Vinh Loftgaard | 1/2-1/2 | 71 | Open |
| 54 | 2025-08-18 | Abu Dhabi Masters Online | chess.com INT | 2 | Artemii Khanbutaev | Ruben Gideon Koellner | 0-1 | 35 | Open |
| 55 | 2025-08-13 | TCh-TUR Super League 2025 | Ankara TUR | 12.31 | Dmitry Andreikin | Ruben Gideon Koellner | 1/2-1/2 | 63 | Open |
| 56 | 2025-08-12 | Titled Tue 12th Aug Late | chess.com INT | 3 | Ruben Gideon Koellner | Luca Silva | 0-1 | 42 | Open |
| 57 | 2025-08-12 | Titled Tue 12th Aug Late | chess.com INT | 2 | Alexei Belov | Ruben Gideon Koellner | 1/2-1/2 | 49 | Open |
| 58 | 2025-08-12 | Titled Tue 12th Aug Late | chess.com INT | 1 | Ruben Gideon Koellner | Tomasz Mika | 1-0 | 22 | Open |
| 59 | 2025-08-11 | TCh-TUR Super League 2025 | Ankara TUR | 9.13 | Ruben Gideon Koellner | Nodirbek Yakubboev | 1/2-1/2 | 34 | Open |
| 60 | 2025-08-11 | TCh-TUR Super League 2025 | Ankara TUR | 10.31 | Bryce Tiglon | Ruben Gideon Koellner | 1/2-1/2 | 66 | Open |
| 61 | 2025-08-10 | TCh-TUR Super League 2025 | Ankara TUR | 8.25 | Nijat Abasov | Ruben Gideon Koellner | 0-1 | 40 | Open |
| 62 | 2025-08-09 | TCh-TUR Super League 2025 | Ankara TUR | 7.19 | Ruben Gideon Koellner | Momchil Petkov | 1/2-1/2 | 59 | Open |
| 63 | 2025-08-08 | TCh-TUR Super League 2025 | Ankara TUR | 6.19 | Ivan Saric | Ruben Gideon Koellner | 1/2-1/2 | 38 | Open |
| 64 | 2025-08-07 | TCh-TUR Super League 2025 | Ankara TUR | 5.25 | Ruben Gideon Koellner | Volodar Murzin | 1/2-1/2 | 31 | Open |
| 65 | 2025-08-07 | TCh-TUR Super League 2025 | Ankara TUR | 4.13 | Rauf Mamedov | Ruben Gideon Koellner | 1-0 | 43 | Open |
| 66 | 2025-08-06 | TCh-TUR Super League 2025 | Ankara TUR | 3.31 | Ruben Gideon Koellner | Evgeny Romanov | 1/2-1/2 | 42 | Open |
| 67 | 2025-08-05 | TCh-TUR Super League 2025 | Ankara TUR | 2.7 | Sankalp Gupta | Ruben Gideon Koellner | 1-0 | 63 | Open |
| 68 | 2025-06-24 | Titled Tue 24th Jun Late | chess.com INT | 3 | William Graif | Ruben Gideon Koellner | 1-0 | 19 | Open |
| 69 | 2025-06-24 | Titled Tue 24th Jun Late | chess.com INT | 2 | Ruben Gideon Koellner | Alexei Gubajdullin | 1-0 | 57 | Open |
| 70 | 2025-06-24 | Titled Tue 24th Jun Late | chess.com INT | 1 | Gedeon Hartge | Ruben Gideon Koellner | 0-1 | 63 | Open |
| 71 | 2025-06-17 | Titled Tue 17th Jun Late | chess.com INT | 4 | Ruben Gideon Koellner | Martin Oksendal | 0-1 | 50 | Open |
| 72 | 2025-06-17 | Titled Tue 17th Jun Late | chess.com INT | 3 | V Pranav | Ruben Gideon Koellner | 1-0 | 42 | Open |
| 73 | 2025-06-17 | Titled Tue 17th Jun Late | chess.com INT | 2 | Anjaneya Sripathy Rao | Ruben Gideon Koellner | 0-1 | 50 | Open |
| 74 | 2025-06-17 | Titled Tue 17th Jun Late | chess.com INT | 1 | Ruben Gideon Koellner | Elameir Fathy | 1-0 | 29 | Open |
| 75 | 2025-06-15 | Zupanja Celebrates GM2 | Zupanja CRO | 8.3 | Nikola Sedlak | Ruben Gideon Koellner | 1/2-1/2 | 16 | Open |
| 76 | 2025-06-14 | Zupanja Celebrates GM2 | Zupanja CRO | 7.4 | Ruben Gideon Koellner | Dragan Kosic | 1-0 | 67 | Open |
| 77 | 2025-06-14 | Zupanja Celebrates GM2 | Zupanja CRO | 6.2 | Nenad Panic | Ruben Gideon Koellner | 1/2-1/2 | 43 | Open |
| 78 | 2025-06-13 | Zupanja Celebrates GM2 | Zupanja CRO | 5.5 | Ruben Gideon Koellner | Harikrishnan.A.Ra | 1-0 | 59 | Open |
| 79 | 2025-06-12 | Zupanja Celebrates GM2 | Zupanja CRO | 4.1 | Aarav Dengla | Ruben Gideon Koellner | 1/2-1/2 | 58 | Open |
| 80 | 2025-06-12 | Zupanja Celebrates GM2 | Zupanja CRO | 3.5 | Aleksander Delchev | Ruben Gideon Koellner | 1/2-1/2 | 37 | Open |
| 81 | 2025-06-11 | Zupanja Celebrates GM2 | Zupanja CRO | 2.2 | Ruben Gideon Koellner | Petar Kovac | 1/2-1/2 | 39 | Open |
| 82 | 2025-06-10 | Zupanja Celebrates GM2 | Zupanja CRO | 1.4 | Adelard Bai | Ruben Gideon Koellner | 1/2-1/2 | 36 | Open |
| 83 | 2025-06-01 | TCh-AUT Rapid 2025 | Pasching AUT | 8.17 | Georg Halvax | Ruben Gideon Koellner | 1/2-1/2 | 100 | Open |
| 84 | 2025-06-01 | TCh-AUT Rapid 2025 | Pasching AUT | 7.9 | Ruben Gideon Koellner | Viktor Erdos | 0-1 | 44 | Open |
| 85 | 2025-06-01 | TCh-AUT Rapid 2025 | Pasching AUT | 6.17 | Teodora Injac | Ruben Gideon Koellner | 0-1 | 50 | Open |
| 86 | 2025-06-01 | TCh-AUT Rapid 2025 | Pasching AUT | 3.5 | Ruben Gideon Koellner | Jaime Santos Latasa | 0-1 | 10 | Open |
| 87 | 2025-05-31 | TCh-AUT Blitz 2025 | Pasching AUT | 8.15 | Felix Blohberger | Ruben Gideon Koellner | 0-1 | 38 | Open |
| 88 | 2025-05-31 | TCh-AUT Blitz 2025 | Pasching AUT | 3.11 | Eduardo Iturrizaga Bonelli | Ruben Gideon Koellner | 1/2-1/2 | 55 | Open |
| 89 | 2025-05-31 | TCh-AUT Blitz 2025 | Pasching AUT | 13.3 | Maxim Rodshtein | Ruben Gideon Koellner | 0-1 | 51 | Open |
| 90 | 2025-05-31 | TCh-AUT Blitz 2025 | Pasching AUT | 11.19 | Ruben Gideon Koellner | Viktor Erdos | 1/2-1/2 | 41 | Open |
| 91 | 2025-05-30 | Grand Prix PlusCity Rapid | Pasching AUT | 8.13 | Pawel Teclaf | Ruben Gideon Koellner | 1-0 | 54 | Open |
| 92 | 2025-05-30 | Grand Prix PlusCity Rapid | Pasching AUT | 7.4 | Alexey Sarana | Ruben Gideon Koellner | 1-0 | 29 | Open |
| 93 | 2025-05-30 | Grand Prix PlusCity Rapid | Pasching AUT | 6.7 | Ruben Gideon Koellner | Maxim Rodshtein | 1-0 | 44 | Open |
| 94 | 2025-05-30 | Grand Prix PlusCity Rapid | Pasching AUT | 5.4 | Ruben Gideon Koellner | Aleksandr Shimanov | 1/2-1/2 | 46 | Open |
| 95 | 2025-05-30 | Grand Prix PlusCity Rapid | Pasching AUT | 4.12 | Eric Hansen | Ruben Gideon Koellner | 0-1 | 47 | Open |
| 96 | 2025-05-29 | Grand Prix PlusCity Blitz | Pasching AUT | 8.13 | Georg Meier | Ruben Gideon Koellner | 1-0 | 40 | Open |
| 97 | 2025-05-29 | Grand Prix PlusCity Blitz | Pasching AUT | 6.17 | Ruben Gideon Koellner | Zdenko Kozul | 1/2-1/2 | 110 | Open |
| 98 | 2025-05-29 | Grand Prix PlusCity Blitz | Pasching AUT | 4.15 | Ruben Gideon Koellner | Nikita Petrov | 0-1 | 30 | Open |
| 99 | 2025-05-29 | Grand Prix PlusCity Blitz | Pasching AUT | 3.15 | Nigel D Short | Ruben Gideon Koellner | 0-1 | 39 | Open |
| 100 | 2025-05-27 | Titled Tue 27th May Late | chess.com INT | 1 | Ruben Gideon Koellner | Nayak Rajesh | 1-0 | 28 | Open |
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