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 |
|---|---|---|---|---|---|---|---|---|---|
| 101 | 2025-04-29 | Titled Tue 29th Apr Late | chess.com INT | 9 | David W L Howell | Ruben Gideon Koellner | 1-0 | 36 | Open |
| 102 | 2025-04-29 | Titled Tue 29th Apr Late | chess.com INT | 8 | Ruben Gideon Koellner | Tudor-Gabriel Danila | 1-0 | 44 | Open |
| 103 | 2025-04-29 | Titled Tue 29th Apr Late | chess.com INT | 7 | Artem Gogolev | Ruben Gideon Koellner | 0-1 | 36 | Open |
| 104 | 2025-04-29 | Titled Tue 29th Apr Late | chess.com INT | 6 | Ilhan Serhat Salman | Ruben Gideon Koellner | 1/2-1/2 | 77 | Open |
| 105 | 2025-04-29 | Titled Tue 29th Apr Late | chess.com INT | 5 | Ruben Gideon Koellner | Ivan Yeletsky | 0-1 | 37 | Open |
| 106 | 2025-04-29 | Titled Tue 29th Apr Late | chess.com INT | 4 | Timur Kocharin | Ruben Gideon Koellner | 0-1 | 25 | Open |
| 107 | 2025-04-29 | Titled Tue 29th Apr Late | chess.com INT | 3 | Ruben Gideon Koellner | Jules Moussard | 0-1 | 68 | Open |
| 108 | 2025-04-29 | Titled Tue 29th Apr Late | chess.com INT | 2 | Ruben Gideon Koellner | Eduardo Cesar Da Matta | 1-0 | 51 | Open |
| 109 | 2025-04-29 | Titled Tue 29th Apr Late | chess.com INT | 1 | Hui Li | Ruben Gideon Koellner | 0-1 | 44 | Open |
| 110 | 2025-04-29 | Titled Tue 29th Apr Late | chess.com INT | 10 | Ruben Gideon Koellner | Mert Ceyhan | 0-1 | 56 | Open |
| 111 | 2025-04-27 | Bundesliga 2024-25 | Deggendorf GER | 15.1 | Aleksandar Kovacevic | Ruben Gideon Koellner | 1/2-1/2 | 15 | Open |
| 112 | 2025-04-26 | Bundesliga 2024-25 | Deggendorf GER | 14.2 | Ruben Gideon Koellner | Theo Gungl | 1-0 | 31 | Open |
| 113 | 2025-04-25 | Bundesliga 2024-25 | Deggendorf GER | 13.4 | Timur Kocharin | Ruben Gideon Koellner | 1/2-1/2 | 122 | Open |
| 114 | 2025-04-06 | TCh-AUT 2024-25 | Austria AUT | 11.18 | Ruben Gideon Koellner | Lukas Dotzer | 1/2-1/2 | 96 | Open |
| 115 | 2025-04-05 | TCh-AUT 2024-25 | Austria AUT | 10.3 | Peter Balint | Ruben Gideon Koellner | 0-1 | 60 | Open |
| 116 | 2025-04-04 | TCh-AUT 2024-25 | Austria AUT | 9.12 | Ruben Gideon Koellner | Etienne Bacrot | 1/2-1/2 | 30 | Open |
| 117 | 2025-03-18 | Titled Tue 18th Mar Late | chess.com INT | 9 | Alexey Sarana | Ruben Gideon Koellner | 1-0 | 44 | Open |
| 118 | 2025-03-18 | Titled Tue 18th Mar Late | chess.com INT | 8 | Ruben Gideon Koellner | Stanley Badacsonyi | 1-0 | 39 | Open |
| 119 | 2025-03-18 | Titled Tue 18th Mar Late | chess.com INT | 7 | Artin Ashraf | Ruben Gideon Koellner | 1-0 | 29 | Open |
| 120 | 2025-03-18 | Titled Tue 18th Mar Late | chess.com INT | 6 | Richard Alejandro Rueda Rojas | Ruben Gideon Koellner | 0-1 | 56 | Open |
| 121 | 2025-03-18 | Titled Tue 18th Mar Late | chess.com INT | 5 | Ruben Gideon Koellner | Amir Hadzovic | 1-0 | 78 | Open |
| 122 | 2025-03-18 | Titled Tue 18th Mar Late | chess.com INT | 4 | Ruben Gideon Koellner | Andy Woodward | 0-1 | 50 | Open |
| 123 | 2025-03-18 | Titled Tue 18th Mar Late | chess.com INT | 3 | Oleksii Karvatskyi | Ruben Gideon Koellner | 0-1 | 51 | Open |
| 124 | 2025-03-18 | Titled Tue 18th Mar Late | chess.com INT | 2 | Ruben Gideon Koellner | Enrique Fernando Asensio Ramos | 1-0 | 48 | Open |
| 125 | 2025-03-18 | Titled Tue 18th Mar Late | chess.com INT | 1 | Michal Redzisz | Ruben Gideon Koellner | 0-1 | 36 | Open |
| 126 | 2025-03-18 | Titled Tue 18th Mar Late | chess.com INT | 11 | Ruben Gideon Koellner | Erigaisi Arjun | 0-1 | 49 | Open |
| 127 | 2025-03-18 | Titled Tue 18th Mar Late | chess.com INT | 10 | Ruben Gideon Koellner | Kevin George | 1-0 | 100 | Open |
| 128 | 2025-02-25 | Titled Tue 25th Feb Early | chess.com INT | 9 | Krzysztof Budrewicz | Ruben Gideon Koellner | 0-1 | 45 | Open |
| 129 | 2025-02-25 | Titled Tue 25th Feb Early | chess.com INT | 8 | Ruben Gideon Koellner | Randi-Ioan Gales | 1-0 | 20 | Open |
| 130 | 2025-02-25 | Titled Tue 25th Feb Early | chess.com INT | 7 | Mathieu Ternault | Ruben Gideon Koellner | 1-0 | 70 | Open |
| 131 | 2025-02-25 | Titled Tue 25th Feb Early | chess.com INT | 6 | Ruben Gideon Koellner | A.R. Saleh Salem | 0-1 | 80 | Open |
| 132 | 2025-02-25 | Titled Tue 25th Feb Early | chess.com INT | 5 | Ruben Gideon Koellner | Sergey Slugin | 1-0 | 41 | Open |
| 133 | 2025-02-25 | Titled Tue 25th Feb Early | chess.com INT | 4 | Andrey Esipenko | Ruben Gideon Koellner | 1-0 | 82 | Open |
| 134 | 2025-02-25 | Titled Tue 25th Feb Early | chess.com INT | 3 | Reinis Paikens | Ruben Gideon Koellner | 0-1 | 37 | Open |
| 135 | 2025-02-25 | Titled Tue 25th Feb Early | chess.com INT | 2 | Ruben Gideon Koellner | Uliana Dudkina | 1-0 | 55 | Open |
| 136 | 2025-02-25 | Titled Tue 25th Feb Early | chess.com INT | 1 | Sargis Sargissyan | Ruben Gideon Koellner | 0-1 | 66 | Open |
| 137 | 2025-02-25 | Titled Tue 25th Feb Early | chess.com INT | 11 | Ruben Gideon Koellner | Bogdan-Daniel Deac | 1-0 | 70 | Open |
| 138 | 2025-02-25 | Titled Tue 25th Feb Early | chess.com INT | 10 | Ruben Gideon Koellner | Mohamed Ezat | 1-0 | 1 | Open |
| 139 | 2025-01-21 | Titled Tue 21st Jan Early | chess.com INT | 1 | Pablo Alexander Ruiz Aguilar | Ruben Gideon Koellner | 0-1 | 83 | Open |
| 140 | 2025-01-07 | Titled Tue 7th Jan Late | chess.com INT | 9 | Ruben Gideon Koellner | Raset Ziatdinov | 0-1 | 81 | Open |
| 141 | 2025-01-07 | Titled Tue 7th Jan Late | chess.com INT | 8 | Jeevan Karamsetty | Ruben Gideon Koellner | 0-1 | 29 | Open |
| 142 | 2025-01-07 | Titled Tue 7th Jan Late | chess.com INT | 7 | Ruben Gideon Koellner | Yi Wei | 0-1 | 54 | Open |
| 143 | 2025-01-07 | Titled Tue 7th Jan Late | chess.com INT | 6 | Ruben Gideon Koellner | Alejandro Domingo Nunez | 1-0 | 14 | Open |
| 144 | 2025-01-07 | Titled Tue 7th Jan Late | chess.com INT | 5 | Robert Tustanowski | Ruben Gideon Koellner | 1/2-1/2 | 50 | Open |
| 145 | 2025-01-07 | Titled Tue 7th Jan Late | chess.com INT | 4 | Ruben Gideon Koellner | Viacheslav Tikhonov | 1-0 | 45 | Open |
| 146 | 2025-01-07 | Titled Tue 7th Jan Late | chess.com INT | 3 | Alexey Sarana | Ruben Gideon Koellner | 1-0 | 63 | Open |
| 147 | 2025-01-07 | Titled Tue 7th Jan Late | chess.com INT | 2 | Sultanbeibarys Dumanuly | Ruben Gideon Koellner | 0-1 | 41 | Open |
| 148 | 2025-01-07 | Titled Tue 7th Jan Late | chess.com INT | 1 | Ruben Gideon Koellner | Joshua Xia | 1-0 | 47 | Open |
| 149 | 2025-01-07 | Titled Tue 7th Jan Early | chess.com INT | 1 | Ruben Gideon Koellner | Jann-Christian Tiarks | 1/2-1/2 | 81 | Open |
| 150 | 2025-01-07 | Titled Tue 7th Jan Late | chess.com INT | 11 | Ruben Gideon Koellner | Dashgyn Ibadov | 1/2-1/2 | 53 | Open |
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