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FIDE ID 2121255· born 1977 · last updated 5/12/2026
FIDE standard
1907
FIDE rapid
1884
FIDE blitz
-
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Shortlist public Lichess and chess.com accounts for Siqueira 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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