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 |
|---|---|---|---|---|---|---|---|---|---|
| 751 | 2023-06-20 | Titled Tue 20th Jun Late | chess.com INT | 2 | Ruben Gideon Koellner | Aram Hakobyan | 0-1 | 91 | Open |
| 752 | 2023-06-20 | Titled Tue 20th Jun Late | chess.com INT | 1 | Maksim Zhukov | Ruben Gideon Koellner | 0-1 | 25 | Open |
| 753 | 2023-06-13 | Titled Tue 13th Jun Late | chess.com INT | 7 | Ruben Gideon Koellner | Abdulla Gadimbayli | 0-1 | 75 | Open |
| 754 | 2023-06-13 | Titled Tue 13th Jun Late | chess.com INT | 6 | Shawn Rodrigue-Lemieux | Ruben Gideon Koellner | 1-0 | 80 | Open |
| 755 | 2023-06-13 | Titled Tue 13th Jun Late | chess.com INT | 5 | Ruben Gideon Koellner | Dmitry Goltsev | 1-0 | 39 | Open |
| 756 | 2023-06-13 | Titled Tue 13th Jun Late | chess.com INT | 4 | Ruben Gideon Koellner | Licael Roderick Ticona Rocabado | 1-0 | 43 | Open |
| 757 | 2023-06-13 | Titled Tue 13th Jun Late | chess.com INT | 3 | Melih Kaan Can | Ruben Gideon Koellner | 0-1 | 52 | Open |
| 758 | 2023-06-13 | Titled Tue 13th Jun Late | chess.com INT | 2 | Ruben Gideon Koellner | Sebastian Marin Posada | 1-0 | 26 | Open |
| 759 | 2023-06-13 | Titled Tue 13th Jun Late | chess.com INT | 1 | Jaime Vaglio Munoz | Ruben Gideon Koellner | 1-0 | 67 | Open |
| 760 | 2023-06-13 | Titled Tue 13th Jun Early | chess.com INT | 1 | Zbigniew Wieczorek | Ruben Gideon Koellner | 1-0 | 37 | Open |
| 761 | 2023-06-12 | AimChess Rapid Play-In | chess.com INT | 7.7 | Ruben Gideon Koellner | Sourath Biswas | 1/2-1/2 | 71 | Open |
| 762 | 2023-06-12 | AimChess Rapid Play-In | chess.com INT | 6.8 | Harmen Jonkman | Ruben Gideon Koellner | 0-1 | 26 | Open |
| 763 | 2023-06-12 | AimChess Rapid Play-In | chess.com INT | 5.74 | Dennis Wagner | Ruben Gideon Koellner | 1-0 | 44 | Open |
| 764 | 2023-06-12 | AimChess Rapid Play-In | chess.com INT | 4.69 | Ruben Gideon Koellner | Leon Luke Mendonca | 0-1 | 68 | Open |
| 765 | 2023-06-12 | AimChess Rapid Play-In | chess.com INT | 3.79 | Raja Harshit | Ruben Gideon Koellner | 0-1 | 54 | Open |
| 766 | 2023-06-12 | AimChess Rapid Play-In | chess.com INT | 2.76 | Miguel Santos Ruiz | Ruben Gideon Koellner | 1-0 | 29 | Open |
| 767 | 2023-06-12 | AimChess Rapid Play-In | chess.com INT | 1.63 | Ruben Gideon Koellner | Igor Kovalenko | 0-1 | 57 | Open |
| 768 | 2023-06-06 | 1st Munich Pfingst-Open A | Munich GER | 9.1 | Anton Demchenko | Ruben Gideon Koellner | 1/2-1/2 | 34 | Open |
| 769 | 2023-06-05 | 1st Munich Pfingst-Open A | Munich GER | 8.4 | Ruben Gideon Koellner | Bharath Subramaniyam H | 1-0 | 41 | Open |
| 770 | 2023-06-05 | 1st Munich Pfingst-Open A | Munich GER | 7.5 | Baadur Jobava | Ruben Gideon Koellner | 0-1 | 22 | Open |
| 771 | 2023-06-04 | 1st Munich Pfingst-Open A | Munich GER | 6.13 | Ruben Gideon Koellner | Frank Bracker | 1-0 | 35 | Open |
| 772 | 2023-06-03 | 1st Munich Pfingst-Open A | Munich GER | 5.14 | Ruben Gideon Koellner | Yelyzaveta Hrebenshchykova | 1/2-1/2 | 37 | Open |
| 773 | 2023-06-03 | 1st Munich Pfingst-Open A | Munich GER | 4.2 | Alexander Motylev | Ruben Gideon Koellner | 1-0 | 49 | Open |
| 774 | 2023-06-02 | 1st Munich Pfingst-Open A | Munich GER | 3.13 | Anna-Maja Kazarian | Ruben Gideon Koellner | 0-1 | 56 | Open |
| 775 | 2023-06-01 | 1st Munich Pfingst-Open A | Munich GER | 2.19 | Ruben Gideon Koellner | Ankush Khandelwal | 1-0 | 39 | Open |
| 776 | 2023-05-31 | 1st Munich Pfingst-Open A | Munich GER | 1.21 | Bennett Schnabel | Ruben Gideon Koellner | 0-1 | 46 | Open |
| 777 | 2023-05-30 | 2nd Laimer Pfingst-Open | Munich GER | 9.2 | Ruben Gideon Koellner | Oleg Korneev | 0-1 | 30 | Open |
| 778 | 2023-05-30 | 2nd Laimer Pfingst-Open | Munich GER | 8.3 | Ruben Gideon Koellner | Souhardo Basak | 1/2-1/2 | 25 | Open |
| 779 | 2023-05-29 | 2nd Laimer Pfingst-Open | Munich GER | 7.1 | Hampus Sorensen | Ruben Gideon Koellner | 1/2-1/2 | 42 | Open |
| 780 | 2023-05-29 | 2nd Laimer Pfingst-Open | Munich GER | 6.4 | Ruben Gideon Koellner | Deepan Chakkravarthy J. | 1-0 | 35 | Open |
| 781 | 2023-05-28 | 2nd Laimer Pfingst-Open | Munich GER | 5.5 | Rudolf Kobl | Ruben Gideon Koellner | 1/2-1/2 | 53 | Open |
| 782 | 2023-05-28 | 2nd Laimer Pfingst-Open | Munich GER | 4.7 | Ruben Gideon Koellner | Juan Rottenwohrer Suarez | 1-0 | 29 | Open |
| 783 | 2023-05-27 | 2nd Laimer Pfingst-Open | Munich GER | 3.2 | Artem Dobrosmyslov | Ruben Gideon Koellner | 1/2-1/2 | 46 | Open |
| 784 | 2023-05-27 | 2nd Laimer Pfingst-Open | Munich GER | 2.7 | Ruben Gideon Koellner | Richard Mueller | 1-0 | 68 | Open |
| 785 | 2023-05-23 | Titled Tue 23rd May Early | chess.com INT | 4 | Ruben Gideon Koellner | Yihe Fu | 0-1 | 28 | Open |
| 786 | 2023-05-23 | Titled Tue 23rd May Early | chess.com INT | 3 | Sergey D. Rodchenkov | Ruben Gideon Koellner | 1-0 | 37 | Open |
| 787 | 2023-05-23 | Titled Tue 23rd May Early | chess.com INT | 2 | Ruben Gideon Koellner | Daniel Rangel | 0-1 | 64 | Open |
| 788 | 2023-05-23 | Titled Tue 23rd May Early | chess.com INT | 1 | Rodrigo Mendoza | Ruben Gideon Koellner | 0-1 | 43 | Open |
| 789 | 2023-05-16 | Titled Tue 16th May Early | chess.com INT | 9 | Ruben Gideon Koellner | Aziz Degenbaev | 0-1 | 32 | Open |
| 790 | 2023-05-16 | Titled Tue 16th May Early | chess.com INT | 8 | Zbigniew Pakleza | Ruben Gideon Koellner | 1-0 | 37 | Open |
| 791 | 2023-05-16 | Titled Tue 16th May Early | chess.com INT | 7 | Ruben Gideon Koellner | Sergey Grigoriants | 1-0 | 32 | Open |
| 792 | 2023-05-16 | Titled Tue 16th May Early | chess.com INT | 6 | Yaroslav Zherebukh | Ruben Gideon Koellner | 1-0 | 27 | Open |
| 793 | 2023-05-16 | Titled Tue 16th May Late | chess.com INT | 5 | David 1981 Martinez Martin | Ruben Gideon Koellner | 1-0 | 70 | Open |
| 794 | 2023-05-16 | Titled Tue 16th May Early | chess.com INT | 5 | Ruben Gideon Koellner | Ansh M Shah | 1-0 | 43 | Open |
| 795 | 2023-05-16 | Titled Tue 16th May Late | chess.com INT | 4 | Ruben Gideon Koellner | David Paravyan | 0-1 | 44 | Open |
| 796 | 2023-05-16 | Titled Tue 16th May Early | chess.com INT | 4 | Ruben Gideon Koellner | Casper Liu | 1-0 | 53 | Open |
| 797 | 2023-05-16 | Titled Tue 16th May Late | chess.com INT | 3 | Nestor Favian Lozano Ramirez | Ruben Gideon Koellner | 0-1 | 36 | Open |
| 798 | 2023-05-16 | Titled Tue 16th May Early | chess.com INT | 3 | Dariusz Swiercz | Ruben Gideon Koellner | 1-0 | 87 | Open |
| 799 | 2023-05-16 | Titled Tue 16th May Early | chess.com INT | 2 | Ruben Gideon Koellner | Timur Yonal | 1-0 | 39 | Open |
| 800 | 2023-05-16 | Titled Tue 16th May Late | chess.com INT | 2 | Ruben Gideon Koellner | Eduardo Gerbelli Neto | 1-0 | 51 | Open |
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