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FIDE ID 21807728· born 1956 · last updated 5/12/2026
FIDE standard
1565
FIDE rapid
1485
FIDE blitz
1487
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Shortlist public Lichess and chess.com accounts for Czylok via fuzzy name, country, and rating-band signals. Fastest path; works without sample games.
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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 by sample game
We checked our stored public PGN sources for FIDE ID 21807728 and do not have usable games for Czylok yet. Paste games below to run repertoire matching by play pattern.
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