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: 2026-10-25 (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 |
|---|---|---|---|---|---|---|---|---|---|
| 901 | 2023-03-21 | Titled Tue 21st Mar Late | chess.com INT | 3 | Vugar Rasulov | Ruben Gideon Koellner | 1-0 | 57 | Open |
| 902 | 2023-03-21 | Titled Tue 21st Mar Early | chess.com INT | 2 | Ruben Gideon Koellner | Andrey Drygalov | 0-1 | 47 | Open |
| 903 | 2023-03-21 | Titled Tue 21st Mar Late | chess.com INT | 2 | Ruben Gideon Koellner | Twan Burg | 1-0 | 94 | Open |
| 904 | 2023-03-21 | Titled Tue 21st Mar Late | chess.com INT | 1 | Ilya Gruzman | Ruben Gideon Koellner | 0-1 | 37 | Open |
| 905 | 2023-03-21 | Titled Tue 21st Mar Early | chess.com INT | 1 | Ruben Gideon Koellner | Alina Semenova | 1-0 | 19 | Open |
| 906 | 2023-03-14 | Titled Tue 14th Mar Late | chess.com INT | 8 | Fruzsina Szente Varga | Ruben Gideon Koellner | 1-0 | 41 | Open |
| 907 | 2023-03-14 | Titled Tue 14th Mar Late | chess.com INT | 7 | Ivan Yeletsky | Ruben Gideon Koellner | 1-0 | 31 | Open |
| 908 | 2023-03-14 | Titled Tue 14th Mar Late | chess.com INT | 6 | Ruben Gideon Koellner | Leon Luke Mendonca | 1-0 | 69 | Open |
| 909 | 2023-03-14 | Titled Tue 14th Mar Late | chess.com INT | 5 | Carlos Daniel Albornoz Cabrera | Ruben Gideon Koellner | 1-0 | 52 | Open |
| 910 | 2023-03-14 | Titled Tue 14th Mar Late | chess.com INT | 4 | Yi Xu | Ruben Gideon Koellner | 0-1 | 42 | Open |
| 911 | 2023-03-14 | Titled Tue 14th Mar Late | chess.com INT | 3 | Ruben Gideon Koellner | Garrett L Smith | 1-0 | 35 | Open |
| 912 | 2023-03-14 | Titled Tue 14th Mar Late | chess.com INT | 2 | Ruben Gideon Koellner | Casper Liu | 1-0 | 30 | Open |
| 913 | 2023-03-12 | Chessemy Open A 2023 | Walsrode GER | 9.8 | Ruben Gideon Koellner | Kaloyan Popvasilev | 1-0 | 47 | Open |
| 914 | 2023-03-11 | Chessemy Open A 2023 | Walsrode GER | 8.13 | Aaron Noah Koellner | Ruben Gideon Koellner | 0-1 | 37 | Open |
| 915 | 2023-03-10 | Chessemy Open A 2023 | Walsrode GER | 7.7 | Ruben Gideon Koellner | Jan Pubantz | 0-1 | 31 | Open |
| 916 | 2023-03-09 | Chessemy Open A 2023 | Walsrode GER | 6.2 | Diptayan Ghosh | Ruben Gideon Koellner | 1-0 | 23 | Open |
| 917 | 2023-03-08 | Chessemy Open A 2023 | Walsrode GER | 5.6 | Ruben Gideon Koellner | Makan Rafiee | 1-0 | 35 | Open |
| 918 | 2023-03-07 | Chessemy Open A 2023 | Walsrode GER | 4.1 | Christoph Ramme | Ruben Gideon Koellner | 0-1 | 51 | Open |
| 919 | 2023-03-06 | Chessemy Open A 2023 | Walsrode GER | 3.9 | Matthias Bach | Ruben Gideon Koellner | 1/2-1/2 | 68 | Open |
| 920 | 2023-03-04 | Chessemy Open A 2023 | Walsrode GER | 1.8 | Ruben Gideon Koellner | Anton Weigand | 1-0 | 42 | Open |
| 921 | 2023-02-28 | Titled Tue 28th Feb Early | chess.com INT | 9 | Ekaterina Goltseva | Ruben Gideon Koellner | 0-1 | 41 | Open |
| 922 | 2023-02-28 | Titled Tue 28th Feb Early | chess.com INT | 8 | Ruben Gideon Koellner | Matvey Galchenko | 0-1 | 61 | Open |
| 923 | 2023-02-28 | Titled Tue 28th Feb Late | chess.com INT | 7 | Dimitrios Makridis | Ruben Gideon Koellner | 1-0 | 72 | Open |
| 924 | 2023-02-28 | Titled Tue 28th Feb Early | chess.com INT | 7 | Grigory Seletsky | Ruben Gideon Koellner | 0-1 | 40 | Open |
| 925 | 2023-02-28 | Titled Tue 28th Feb Early | chess.com INT | 6 | Ruben Gideon Koellner | Leinier Dominguez Perez | 0-1 | 32 | Open |
| 926 | 2023-02-28 | Titled Tue 28th Feb Late | chess.com INT | 6 | Ruben Gideon Koellner | Jakub Pulpan | 0-1 | 54 | Open |
| 927 | 2023-02-28 | Titled Tue 28th Feb Late | chess.com INT | 5 | Ruben Gideon Koellner | Dimitris Alexakis | 1-0 | 37 | Open |
| 928 | 2023-02-28 | Titled Tue 28th Feb Early | chess.com INT | 5 | Ruben Gideon Koellner | Guillermo Llanos | 1-0 | 21 | Open |
| 929 | 2023-02-28 | Titled Tue 28th Feb Late | chess.com INT | 4 | Mouhcine Benaddi | Ruben Gideon Koellner | 0-1 | 25 | Open |
| 930 | 2023-02-28 | Titled Tue 28th Feb Early | chess.com INT | 4 | Evgeny V. Melikhov | Ruben Gideon Koellner | 1/2-1/2 | 50 | Open |
| 931 | 2023-02-28 | Titled Tue 28th Feb Late | chess.com INT | 3 | Ruben Gideon Koellner | Lazaro Pino Perez | 1-0 | 17 | Open |
| 932 | 2023-02-28 | Titled Tue 28th Feb Early | chess.com INT | 3 | Arturs Neiksans | Ruben Gideon Koellner | 1-0 | 65 | Open |
| 933 | 2023-02-28 | Titled Tue 28th Feb Late | chess.com INT | 2 | Julian Estrada Nieto | Ruben Gideon Koellner | 1/2-1/2 | 77 | Open |
| 934 | 2023-02-28 | Titled Tue 28th Feb Early | chess.com INT | 2 | Ruben Gideon Koellner | Luca Jr Moroni | 1/2-1/2 | 88 | Open |
| 935 | 2023-02-28 | Titled Tue 28th Feb Early | chess.com INT | 1 | Ruben Gideon Koellner | Felix Rose | 1-0 | 11 | Open |
| 936 | 2023-02-28 | Titled Tue 28th Feb Late | chess.com INT | 1 | Ruben Gideon Koellner | Christopher Chabris | 0-1 | 29 | Open |
| 937 | 2023-02-28 | Titled Tue 28th Feb Early | chess.com INT | 10 | Konstantin Andreev | Ruben Gideon Koellner | 1-0 | 87 | Open |
| 938 | 2023-02-21 | Baden-Baden Faschingsopen | Baden Baden GER | 9.2 | Ruben Gideon Koellner | David Faerber | 1-0 | 60 | Open |
| 939 | 2023-02-21 | Baden-Baden Faschingsopen | Baden Baden GER | 8.2 | Jonathan Carlstedt | Ruben Gideon Koellner | 1/2-1/2 | 6 | Open |
| 940 | 2023-02-20 | Baden-Baden Faschingsopen | Baden Baden GER | 7.2 | Ruben Gideon Koellner | Veaceslav Cofmann | 1/2-1/2 | 20 | Open |
| 941 | 2023-02-20 | Baden-Baden Faschingsopen | Baden Baden GER | 6.3 | Vadim Cernov | Ruben Gideon Koellner | 0-1 | 41 | Open |
| 942 | 2023-02-19 | Baden-Baden Faschingsopen | Baden Baden GER | 5.4 | Ruben Gideon Koellner | Henrik Cernov | 1-0 | 37 | Open |
| 943 | 2023-02-19 | Baden-Baden Faschingsopen | Baden Baden GER | 4.1 | Andreas Heimann | Ruben Gideon Koellner | 1-0 | 36 | Open |
| 944 | 2023-02-18 | Baden-Baden Faschingsopen | Baden Baden GER | 3.3 | Ruben Gideon Koellner | Martin Hartmann | 1-0 | 42 | Open |
| 945 | 2023-02-18 | Baden-Baden Faschingsopen | Baden Baden GER | 2.4 | Matthias Mattenberger | Ruben Gideon Koellner | 0-1 | 58 | Open |
| 946 | 2023-02-17 | Baden-Baden Faschingsopen | Baden Baden GER | 1.4 | Ruben Gideon Koellner | Georg Voss | 1-0 | 33 | Open |
| 947 | 2023-02-14 | Titled Tue 14th Feb Late | chess.com INT | 9 | Gal Drnovsek | Ruben Gideon Koellner | 1-0 | 36 | Open |
| 948 | 2023-02-14 | Titled Tue 14th Feb Late | chess.com INT | 8 | Ruben Gideon Koellner | Jaan Ehlvest | 0-1 | 49 | Open |
| 949 | 2023-02-14 | Titled Tue 14th Feb Early | chess.com INT | 8 | Ruben Gideon Koellner | Kamil Grycel | 0-1 | 41 | Open |
| 950 | 2023-02-14 | Titled Tue 14th Feb Early | chess.com INT | 7 | Ahmad Ahmadzada | Ruben Gideon Koellner | 1-0 | 32 | Open |
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