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FIDE ID 1041657 · born 1995 · last updated 5/12/2026
Standard
2094
Rapid
-
Blitz
2073
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Shortlist public Lichess and chess.com accounts for Casteleijn 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 Casteleijn…
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Real tournament games of Diederick Casteleijn from public sources. Select a game to replay it on the board.
All games
+7 =2 -5 · score 57% · 14 games
As White
+4 =2 -1 · score 71% · 7 games
As Black
+3 =0 -4 · score 43% · 7 games
Risk,Gregory(1826)
Casteleijn,Diederick(2109)0-1
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As White
As Black
| Event | Games | Dates |
|---|---|---|
| 35th NATO Chess 2025 | 7 | 2025-08-18 to 2025-08-22 |
| 34th NATO Chess 2024 | 7 | 2024-10-21 to 2024-10-25 |
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 14 of Casteleijn’s real games in public databases. No PGNs needed: one click shortlists public accounts with similar opening choices.
Sources: twic (14) - latest 8/22/2025
Helps match accounts whose display name is not written in Latin letters.
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