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FIDE ID 41857836· born 2001 · last updated 5/12/2026
FIDE standard
1529
FIDE rapid
1548
FIDE blitz
1518
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Shortlist public Lichess and chess.com accounts for Rosiak via fuzzy name, country, and rating-band signals. Fastest path; works without sample games.
AI matching by sample game
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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 41857836 and do not have usable games for Rosiak yet. Paste games below to run repertoire matching by play pattern.
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