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FIDE ID 21830517 · born 2005 · last updated 5/12/2026
Standard
1402
Rapid
1501
Blitz
1421
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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 21830517 and do not have usable games for Piechocki yet. Paste games below to run repertoire matching by play pattern.
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