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 |
|---|---|---|---|---|---|---|---|---|---|
| 851 | 2023-04-25 | Titled Tue 25th Apr Early | chess.com INT | 3 | Augustinas Bazilius | Ruben Gideon Koellner | 0-1 | 48 | Open |
| 852 | 2023-04-25 | Titled Tue 25th Apr Late | chess.com INT | 2 | Gabriel Eidelman | Ruben Gideon Koellner | 0-1 | 40 | Open |
| 853 | 2023-04-25 | Titled Tue 25th Apr Early | chess.com INT | 2 | Ruben Gideon Koellner | Aaron Grabinsky | 0-1 | 56 | Open |
| 854 | 2023-04-25 | Titled Tue 25th Apr Early | chess.com INT | 1 | Ruben Gideon Koellner | Alfie Onslow | 1-0 | 33 | Open |
| 855 | 2023-04-25 | Titled Tue 25th Apr Late | chess.com INT | 1 | Ruben Gideon Koellner | Todd Bryant | 1/2-1/2 | 26 | Open |
| 856 | 2023-04-25 | Titled Tue 25th Apr Early | chess.com INT | 11 | Valentina Gunina | Ruben Gideon Koellner | 0-1 | 35 | Open |
| 857 | 2023-04-25 | Titled Tue 25th Apr Early | chess.com INT | 10 | Ruben Gideon Koellner | Aryan Tari | 1-0 | 40 | Open |
| 858 | 2023-04-19 | Mitropa Cup 2023 | Mali Losinj CRO | 9.1 | Ruben Gideon Koellner | Fabian Baenziger | 1/2-1/2 | 25 | Open |
| 859 | 2023-04-18 | Mitropa Cup 2023 | Mali Losinj CRO | 8.1 | Maxime Lagarde | Ruben Gideon Koellner | 1-0 | 50 | Open |
| 860 | 2023-04-18 | Titled Tue 18th Apr Late | chess.com INT | 6 | Ruben Gideon Koellner | Thomas Beerdsen | 0-1 | 57 | Open |
| 861 | 2023-04-18 | Titled Tue 18th Apr Late | chess.com INT | 5 | Diego Flores | Ruben Gideon Koellner | 1/2-1/2 | 64 | Open |
| 862 | 2023-04-18 | Titled Tue 18th Apr Late | chess.com INT | 4 | Ruben Gideon Koellner | Mauricio Vargas Benavides | 1-0 | 30 | Open |
| 863 | 2023-04-18 | Titled Tue 18th Apr Late | chess.com INT | 3 | Anderson Esmeraldas Huachi | Ruben Gideon Koellner | 0-1 | 24 | Open |
| 864 | 2023-04-18 | Titled Tue 18th Apr Late | chess.com INT | 2 | Ruben Gideon Koellner | Carter Peatman | 1-0 | 47 | Open |
| 865 | 2023-04-17 | Mitropa Cup 2023 | Mali Losinj CRO | 7.1 | Mladen Palac | Ruben Gideon Koellner | 0-1 | 57 | Open |
| 866 | 2023-04-16 | Mitropa Cup 2023 | Mali Losinj CRO | 6.1 | Ruben Gideon Koellner | Adam Kozak | 0-1 | 59 | Open |
| 867 | 2023-04-15 | Mitropa Cup 2023 | Mali Losinj CRO | 5.1 | Luca Jr Moroni | Ruben Gideon Koellner | 1/2-1/2 | 60 | Open |
| 868 | 2023-04-14 | Mitropa Cup 2023 | Mali Losinj CRO | 4.1 | Ruben Gideon Koellner | Lukas Dotzer | 1-0 | 45 | Open |
| 869 | 2023-04-13 | Mitropa Cup 2023 | Mali Losinj CRO | 3.1 | Matej Sebenik | Ruben Gideon Koellner | 1/2-1/2 | 23 | Open |
| 870 | 2023-04-12 | Mitropa Cup 2023 | Mali Losinj CRO | 2.1 | Ruben Gideon Koellner | Samir Sahidi | 0-1 | 75 | Open |
| 871 | 2023-04-11 | Mitropa Cup 2023 | Mali Losinj CRO | 1.1 | Jan Vykouk | Ruben Gideon Koellner | 1/2-1/2 | 50 | Open |
| 872 | 2023-04-02 | Bundesliga 2022-23 | Munich GER | 13.6 | Georg Halvax | Ruben Gideon Koellner | 1/2-1/2 | 31 | Open |
| 873 | 2023-04-01 | Bundesliga 2022-23 | Munich GER | 12.6 | Ruben Gideon Koellner | Alexander Hoenig | 1-0 | 35 | Open |
| 874 | 2023-03-28 | Titled Tue 28th Mar Early | chess.com INT | 9 | Harshavardhan G B | Ruben Gideon Koellner | 1/2-1/2 | 101 | Open |
| 875 | 2023-03-28 | Titled Tue 28th Mar Early | chess.com INT | 8 | Ruben Gideon Koellner | Vasiliy Korchmar | 1-0 | 33 | Open |
| 876 | 2023-03-28 | Titled Tue 28th Mar Late | chess.com INT | 8 | Ruben Gideon Koellner | Arystanbek Urazayev | 0-1 | 91 | Open |
| 877 | 2023-03-28 | Titled Tue 28th Mar Early | chess.com INT | 7 | Tykhon Cherniaiev | Ruben Gideon Koellner | 1/2-1/2 | 74 | Open |
| 878 | 2023-03-28 | Titled Tue 28th Mar Late | chess.com INT | 7 | Arad Nazari | Ruben Gideon Koellner | 0-1 | 42 | Open |
| 879 | 2023-03-28 | Titled Tue 28th Mar Late | chess.com INT | 6 | Egor Baskakov | Ruben Gideon Koellner | 1/2-1/2 | 72 | Open |
| 880 | 2023-03-28 | Titled Tue 28th Mar Early | chess.com INT | 6 | Ruben Gideon Koellner | Michael Buscar | 1-0 | 42 | Open |
| 881 | 2023-03-28 | Titled Tue 28th Mar Early | chess.com INT | 5 | Ruben Gideon Koellner | Dennis Wagner | 0-1 | 25 | Open |
| 882 | 2023-03-28 | Titled Tue 28th Mar Late | chess.com INT | 5 | Ruben Gideon Koellner | Lucas Van Foreest | 0-1 | 42 | Open |
| 883 | 2023-03-28 | Titled Tue 28th Mar Late | chess.com INT | 4 | Carlos Daniel Albornoz Cabrera | Ruben Gideon Koellner | 0-1 | 76 | Open |
| 884 | 2023-03-28 | Titled Tue 28th Mar Early | chess.com INT | 4 | Pa Iniyan | Ruben Gideon Koellner | 1/2-1/2 | 50 | Open |
| 885 | 2023-03-28 | Titled Tue 28th Mar Late | chess.com INT | 3 | Joaquin Jimenez | Ruben Gideon Koellner | 0-1 | 41 | Open |
| 886 | 2023-03-28 | Titled Tue 28th Mar Early | chess.com INT | 3 | Marcel Winkels | Ruben Gideon Koellner | 0-1 | 36 | Open |
| 887 | 2023-03-28 | Titled Tue 28th Mar Early | chess.com INT | 2 | Ruben Gideon Koellner | Christian Silvestre | 1-0 | 28 | Open |
| 888 | 2023-03-28 | Titled Tue 28th Mar Late | chess.com INT | 2 | Ruben Gideon Koellner | Frederik Svane | 0-1 | 82 | Open |
| 889 | 2023-03-28 | Titled Tue 28th Mar Late | chess.com INT | 1 | Ruben Gideon Koellner | Alex Bullen | 1-0 | 29 | Open |
| 890 | 2023-03-28 | Titled Tue 28th Mar Early | chess.com INT | 1 | Arkadiusz Szmyd | Ruben Gideon Koellner | 1-0 | 76 | Open |
| 891 | 2023-03-28 | Titled Tue 28th Mar Early | chess.com INT | 11 | Ruben Gideon Koellner | Balazs Csonka | 1-0 | 46 | Open |
| 892 | 2023-03-28 | Titled Tue 28th Mar Early | chess.com INT | 10 | Ruben Gideon Koellner | Ramil Hasangatin | 1/2-1/2 | 82 | Open |
| 893 | 2023-03-21 | Titled Tue 21st Mar Early | chess.com INT | 7 | Ruben Gideon Koellner | Anna Shukhman | 0-1 | 27 | Open |
| 894 | 2023-03-21 | Titled Tue 21st Mar Early | chess.com INT | 6 | Asa Hoffmann | Ruben Gideon Koellner | 0-1 | 43 | Open |
| 895 | 2023-03-21 | Titled Tue 21st Mar Late | chess.com INT | 6 | Ruben Gideon Koellner | Przemyslaw Liwak | 0-1 | 34 | Open |
| 896 | 2023-03-21 | Titled Tue 21st Mar Early | chess.com INT | 5 | Lazaro Lorenzo De La Riva | Ruben Gideon Koellner | 1-0 | 51 | Open |
| 897 | 2023-03-21 | Titled Tue 21st Mar Late | chess.com INT | 5 | Luis Fernandez Siles | Ruben Gideon Koellner | 1-0 | 39 | Open |
| 898 | 2023-03-21 | Titled Tue 21st Mar Early | chess.com INT | 4 | Ruben Gideon Koellner | Leandro Jimenez Jimenez | 1-0 | 59 | Open |
| 899 | 2023-03-21 | Titled Tue 21st Mar Late | chess.com INT | 4 | Ruben Gideon Koellner | Sargis A. Manukyan | 0-1 | 52 | Open |
| 900 | 2023-03-21 | Titled Tue 21st Mar Early | chess.com INT | 3 | Erigaisi Arjun | Ruben Gideon Koellner | 1-0 | 46 | Open |
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