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FIDE ID 4140770 · born 1954 · last updated 5/12/2026
Standard
1960
Rapid
1966
Blitz
1988
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Shortlist public Lichess and chess.com accounts for Dergatchov 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
We checked our stored public PGN sources for FIDE ID 4140770 and do not have usable games for Dergatchov yet. Paste games below to run repertoire matching by play pattern.
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