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FIDE ID 26059770 · born 1979 · last updated 5/12/2026
Standard
1857
Rapid
1862
Blitz
1873
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Shortlist public Lichess and chess.com accounts for Derr 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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We checked our stored public PGN sources for FIDE ID 26059770 and do not have usable games for Derr yet. Paste games below to run repertoire matching by play pattern.
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