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FIDE ID 20678797· born 1957 · last updated 5/12/2026
FIDE standard
1767
FIDE rapid
1728
FIDE blitz
-
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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 20678797 and do not have usable games for De Muyser yet. Paste games below to run repertoire matching by play pattern.
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