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: 2026-10-24 (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 |
|---|---|---|---|---|---|---|---|---|---|
| 701 | 2023-07-25 | Titled Tue 25th Jul Early | chess.com INT | 9 | Jan Marn | Ruben Gideon Koellner | 1/2-1/2 | 97 | Open |
| 702 | 2023-07-25 | Titled Tue 25th Jul Early | chess.com INT | 8 | Ruben Gideon Koellner | Gustas Morkunas | 1-0 | 54 | Open |
| 703 | 2023-07-25 | Titled Tue 25th Jul Early | chess.com INT | 7 | Aleksandar Indjic | Ruben Gideon Koellner | 1-0 | 34 | Open |
| 704 | 2023-07-25 | Titled Tue 25th Jul Late | chess.com INT | 6 | Armin Musovic | Ruben Gideon Koellner | 1-0 | 16 | Open |
| 705 | 2023-07-25 | Titled Tue 25th Jul Early | chess.com INT | 6 | Vitaliy Bernadskiy | Ruben Gideon Koellner | 1-0 | 43 | Open |
| 706 | 2023-07-25 | Titled Tue 25th Jul Late | chess.com INT | 5 | Ruben Gideon Koellner | Kazim Gulamali | 1/2-1/2 | 34 | Open |
| 707 | 2023-07-25 | Titled Tue 25th Jul Early | chess.com INT | 5 | Ruben Gideon Koellner | Seyed Khalil Mousavi | 1-0 | 74 | Open |
| 708 | 2023-07-25 | Titled Tue 25th Jul Late | chess.com INT | 4 | Daniel Taboas Rodriguez | Ruben Gideon Koellner | 0-1 | 47 | Open |
| 709 | 2023-07-25 | Titled Tue 25th Jul Early | chess.com INT | 4 | Ruben Gideon Koellner | Mark Liubarov | 1-0 | 36 | Open |
| 710 | 2023-07-25 | Titled Tue 25th Jul Early | chess.com INT | 3 | Aaron Bendayan Claros | Ruben Gideon Koellner | 0-1 | 54 | Open |
| 711 | 2023-07-25 | Titled Tue 25th Jul Late | chess.com INT | 3 | Ruben Gideon Koellner | Shant Sargsyan | 0-1 | 50 | Open |
| 712 | 2023-07-25 | Titled Tue 25th Jul Early | chess.com INT | 2 | Ruben Gideon Koellner | Stephen Willy | 1-0 | 35 | Open |
| 713 | 2023-07-25 | Titled Tue 25th Jul Late | chess.com INT | 2 | Ruben Gideon Koellner | Hrvoje Fajdetic | 1-0 | 34 | Open |
| 714 | 2023-07-25 | Titled Tue 25th Jul Early | chess.com INT | 1 | Evgeny V. Melikhov | Ruben Gideon Koellner | 1-0 | 59 | Open |
| 715 | 2023-07-25 | Titled Tue 25th Jul Late | chess.com INT | 1 | Maria Jose Campos | Ruben Gideon Koellner | 0-1 | 36 | Open |
| 716 | 2023-07-25 | Titled Tue 25th Jul Early | chess.com INT | 11 | Henry Lopez | Ruben Gideon Koellner | 0-1 | 55 | Open |
| 717 | 2023-07-25 | Titled Tue 25th Jul Early | chess.com INT | 10 | Ruben Gideon Koellner | Pavel Salman | 1/2-1/2 | 76 | Open |
| 718 | 2023-07-24 | Julius Baer Play-In 2023 | chess.com INT | 3.73 | Ruben Gideon Koellner | Pavel Ponkratov | 0-1 | 34 | Open |
| 719 | 2023-07-24 | Julius Baer Play-In 2023 | chess.com INT | 2.72 | Jon Ludvig Hammer | Ruben Gideon Koellner | 1-0 | 55 | Open |
| 720 | 2023-07-24 | Julius Baer Play-In 2023 | chess.com INT | 1.65 | Benjamin Gledura | Ruben Gideon Koellner | 1-0 | 62 | Open |
| 721 | 2023-07-04 | Titled Tue 4th Jul Early | chess.com INT | 9 | Michal Kopczynski | Ruben Gideon Koellner | 0-1 | 40 | Open |
| 722 | 2023-07-04 | Titled Tue 4th Jul Early | chess.com INT | 8 | Ruben Gideon Koellner | Vladimir Demin | 1-0 | 35 | Open |
| 723 | 2023-07-04 | Titled Tue 4th Jul Early | chess.com INT | 7 | Sultai Chyngyz | Ruben Gideon Koellner | 1-0 | 48 | Open |
| 724 | 2023-07-04 | Titled Tue 4th Jul Early | chess.com INT | 6 | Ruben Gideon Koellner | Ritvik Krishnan | 1-0 | 40 | Open |
| 725 | 2023-07-04 | Titled Tue 4th Jul Early | chess.com INT | 5 | Daniel Dardha | Ruben Gideon Koellner | 1-0 | 77 | Open |
| 726 | 2023-07-04 | Titled Tue 4th Jul Early | chess.com INT | 4 | Rasmus Svane | Ruben Gideon Koellner | 1-0 | 76 | Open |
| 727 | 2023-07-04 | Titled Tue 4th Jul Early | chess.com INT | 3 | Ruben Gideon Koellner | Jose Carlos Ibarra Jerez | 1-0 | 42 | Open |
| 728 | 2023-07-04 | Titled Tue 4th Jul Early | chess.com INT | 2 | Ruben Gideon Koellner | Alain Prieto Aranguren | 1-0 | 61 | Open |
| 729 | 2023-07-04 | Titled Tue 4th Jul Late | chess.com INT | 2 | Ruben Gideon Koellner | Maria Jose Campos | 0-1 | 52 | Open |
| 730 | 2023-07-04 | Titled Tue 4th Jul Early | chess.com INT | 1 | Aleksandar Topalov | Ruben Gideon Koellner | 0-1 | 35 | Open |
| 731 | 2023-07-04 | Titled Tue 4th Jul Late | chess.com INT | 1 | Vladimir Mikhalsky | Ruben Gideon Koellner | 1-0 | 71 | Open |
| 732 | 2023-07-04 | Titled Tue 4th Jul Early | chess.com INT | 11 | Ruben Gideon Koellner | Anton Demchenko | 1-0 | 46 | Open |
| 733 | 2023-07-04 | Titled Tue 4th Jul Early | chess.com INT | 10 | Ruben Gideon Koellner | Kukreja Sankalp | 1-0 | 27 | Open |
| 734 | 2023-07-02 | 50th NRW Cup 2023 | Dortmund GER | 9.2 | Ruben Gideon Koellner | Dinara Wagner | 1/2-1/2 | 18 | Open |
| 735 | 2023-07-01 | 50th NRW Cup 2023 | Dortmund GER | 8.4 | Hussain Besou | Ruben Gideon Koellner | 0-1 | 33 | Open |
| 736 | 2023-06-30 | 50th NRW Cup 2023 | Dortmund GER | 7.3 | Ruben Gideon Koellner | Karthik Venkataraman | 1/2-1/2 | 49 | Open |
| 737 | 2023-06-29 | 50th NRW Cup 2023 | Dortmund GER | 6.3 | Arthur De Winter | Ruben Gideon Koellner | 1-0 | 37 | Open |
| 738 | 2023-06-28 | 50th NRW Cup 2023 | Dortmund GER | 5.4 | Ruben Gideon Koellner | Georgios Souleidis | 1-0 | 51 | Open |
| 739 | 2023-06-27 | 50th NRW Cup 2023 | Dortmund GER | 4.2 | Alexander Bagrationi | Ruben Gideon Koellner | 0-1 | 35 | Open |
| 740 | 2023-06-26 | 50th NRW Cup 2023 | Dortmund GER | 3.5 | Ruben Gideon Koellner | Mihail Saltaev | 1-0 | 30 | Open |
| 741 | 2023-06-25 | 50th NRW Cup 2023 | Dortmund GER | 2.1 | Vadym Petrovskiy | Ruben Gideon Koellner | 1/2-1/2 | 34 | Open |
| 742 | 2023-06-24 | 50th NRW Cup 2023 | Dortmund GER | 1.5 | Jana Schneider | Ruben Gideon Koellner | 0-1 | 39 | Open |
| 743 | 2023-06-20 | Titled Tue 20th Jun Late | chess.com INT | 9 | Yusuf Eren Kavri | Ruben Gideon Koellner | 1-0 | 56 | Open |
| 744 | 2023-06-20 | Titled Tue 20th Jun Late | chess.com INT | 8 | Ruben Gideon Koellner | Vahap Sanal | 0-1 | 38 | Open |
| 745 | 2023-06-20 | Titled Tue 20th Jun Late | chess.com INT | 7 | Leon Livaic | Ruben Gideon Koellner | 1/2-1/2 | 54 | Open |
| 746 | 2023-06-20 | Titled Tue 20th Jun Late | chess.com INT | 6 | Yagiz Kaan Erdogmus | Ruben Gideon Koellner | 0-1 | 69 | Open |
| 747 | 2023-06-20 | Titled Tue 20th Jun Late | chess.com INT | 5 | Ruben Gideon Koellner | Sergey Grigoriants | 1/2-1/2 | 45 | Open |
| 748 | 2023-06-20 | Titled Tue 20th Jun Late | chess.com INT | 4 | Ruben Gideon Koellner | Robert Sanchez | 1-0 | 47 | Open |
| 749 | 2023-06-20 | Titled Tue 20th Jun Late | chess.com INT | 3 | Juan Sebastian Herrera | Ruben Gideon Koellner | 0-1 | 77 | Open |
| 750 | 2023-06-20 | Titled Tue 20th Jun Early | chess.com INT | 2 | Sai Nirupama Kotepalli | Ruben Gideon Koellner | 1-0 | 62 | Open |
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