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FIDE ID 21090963 · born 2004 · last updated 5/12/2026
Standard
1577
Rapid
1595
Blitz
1524
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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 21090963 and do not have usable games for Piszczek yet. Paste games below to run repertoire matching by play pattern.
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