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FIDE ID 34624201· born 2006 · last updated 9/24/2026
Search for the accounts Jonah Janssen plays online, then open one to see its openings and practice the lines.
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No tournament games of Jonah Janssen are on file yet, so this search uses their name, country and rating. Adding their games under More options makes it stronger.
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Results are leads to check, not proof of who owns an account.
Search for Jonah Janssen's online accounts first. Then open one to see the openings it plays, move by move, and practice the positions.