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FIDE ID 1011588· born 1960 · last updated 5/12/2026
FIDE standard
1800
FIDE rapid
1822
FIDE blitz
1894
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Real tournament games of Jan Willem Koelmans from public sources. Select a game to replay it on the board.
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Dauner,Benedikt(2377)
Koelmans,J(1834)1-0
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| Event | Games | Dates |
|---|---|---|
| 10th Arber Open 2023 | 1 | 2023-08-05 |
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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AI matching from found games
We already found 1 of Koelmans ’s real games in public databases. No PGNs needed: one click shortlists public accounts with similar opening choices.
Sources:twic (1)- latest 8/5/2023
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