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FIDE ID 21059640· born 1982 · last updated 5/12/2026
FIDE standard
1435
FIDE rapid
1401
FIDE blitz
1466
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Shortlist public Lichess and chess.com accounts for Butkiewicz via fuzzy name, country, and rating-band signals. Fastest path; works without sample games.
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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 21059640 and do not have usable games for Butkiewicz yet. Paste games below to run repertoire matching by play pattern.
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