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FIDE ID 1011162· born 1984 · last updated 5/12/2026
FIDE standard
2382
FIDE rapid
2394
FIDE blitz
2440
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Shortlist public Lichess and chess.com accounts for Ondersteijn 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 ofOndersteijn…
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Real tournament games of Niels Ondersteijn from public sources. Select a game to replay it on the board.
All games
+26 =17 -21 · score54% · 64 games
As White
+18 =5 -9 · score64% · 32 games
As Black
+8 =12 -12 · score44% · 32 games
Thijssen,Freek(2133)
Ondersteijn,N(2382)1-0
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As White
| Event | Games | Dates |
|---|---|---|
| 51st OKU 2026 | 3 | 2026-05-15 to 2026-05-17 |
| TCh-NED Cup 2026 | 3 | 2026-05-14 |
| Dutch League 2025-26 | 7 | 2025-09-20 to 2026-04-11 |
| grenke Chess Open 2026 | 8 | 2026-04-03 to 2026-04-06 |
| 40th ECC Open 2025 | 4 | 2025-10-21 to 2025-10-25 |
| Dutch League 2024-25 | 9 | 2024-09-21 to 2025-05-10 |
| grenke Chess Open 2025 | 4 | 2025-04-19 to 2025-04-21 |
| 39th ECC Open 2024 | 7 | 2024-10-20 to 2024-10-26 |
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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As Black
| Dutch League 2023-24 | 7 | 2023-09-16 to 2024-04-20 |
| 38th ECC Open 2023 | 3 | 2023-10-02 to 2023-10-06 |
AI matching from found games
We already found 64 of Ondersteijn ’s real games in public databases. No PGNs needed: one click shortlists public accounts with similar opening choices.
Sources:twic (64)- latest 5/17/2026
Helps match accounts whose display name is not written in Latin letters.
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