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FIDE ID 21071497 · born 2012 · last updated 5/12/2026
Standard
1633
Rapid
1519
Blitz
1660
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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 21071497 and do not have usable games for Jachnik yet. Paste games below to run repertoire matching by play pattern.
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