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FIDE ID 2263343 · born 1978 · last updated 5/12/2026
Standard
2013
Rapid
1889
Blitz
1941
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Shortlist public Lichess and chess.com accounts for Castrillon Otero 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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