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FIDE ID 4005317· born 1947 · last updated 5/12/2026
FIDE standard
1831
FIDE rapid
1858
FIDE blitz
-
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Shortlist public Lichess and chess.com accounts for Stirn 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
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