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FIDE ID 12993093 · born 2004 · last updated 5/12/2026
Standard
2530
Rapid
2425
Blitz
2384
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Shortlist public Lichess and chess.com accounts for Koellner via fuzzy name, country, and rating-band signals. Fastest path; works without sample games.
AI matching by sample game
Searching public databases for known games of Koellner…
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Real tournament games of Ruben Gideon Koellner from public sources. Select a game to replay it on the board.
All games
+153 =73 -74 · score 63% · 300 games
As White
+78 =38 -37 · score 63% · 153 games
As Black
+75 =35 -37 · score 63% · 147 games
Terry,R(2508)
Koellner,Ruben Gideon(2531)0-1
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As White
| Event | Games | Dates |
|---|---|---|
| Titled Tue 2nd Jun 2026 | 3 | 2026-06-02 |
| Bundesliga 2025-26 | 9 | 2026-01-10 to 2026-04-26 |
| grenke Chess Open 2026 | 9 | 2026-04-02 to 2026-04-06 |
| IM-Turnier im Atomis 2025 | 7 | 2025-12-26 to 2025-12-30 |
| Rainer Radtke Mem Rapid | 9 | 2025-11-15 to 2025-11-16 |
| Abu Dhabi Masters Online | 3 | 2025-08-18 |
| TCh-TUR Super League 2025 | 10 | 2025-08-05 to 2025-08-13 |
| Titled Tue 12th Aug Late | 3 |
Prep report
Their repertoire vs yours
Once you have a candidate account, we cross-reference its opening tree against your imported games, surfacing the lines they play that you don’t know, the leaks in their repertoire you can punish, and the gaps in yours you’ll need to plug before the game.
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Showing the latest 100 of 693 games on file. Use them to build account leads for Ruben Gideon Koellner.
As Black
| 2025-08-12 |
| Titled Tue 24th Jun Late | 3 | 2025-06-24 |
| Titled Tue 17th Jun Late | 4 | 2025-06-17 |
AI matching from found games
We already found 693 of Koellner’s real games in public databases. No PGNs needed: one click shortlists public accounts with similar opening choices.
Sources: twic (693) - latest 6/2/2026
Helps match accounts whose display name is not written in Latin letters.
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