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FIDE ID 3900754· born 1981 · last updated 5/12/2026
FIDE standard
2064
FIDE rapid
2087
FIDE blitz
2021
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Shortlist public Lichess and chess.com accounts for Sanchez Castillo 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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We checked our stored public PGN sources for FIDE ID 3900754 and do not have usable games for Sanchez Castillo yet. Paste games below to run repertoire matching by play pattern.
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