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FIDE ID 4433645· born 1974 · last updated 5/12/2026
FIDE standard
1863
FIDE rapid
1909
FIDE blitz
1977
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Shortlist public Lichess and chess.com accounts for Nieto Mancilla 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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