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FIDE ID 20634919· born 1948 · last updated 5/12/2026
FIDE standard
1518
FIDE rapid
1539
FIDE blitz
-
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Shortlist public Lichess and chess.com accounts for Breyer 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 20634919 and do not have usable games for Breyer yet. Paste games below to run repertoire matching by play pattern.
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