Meet 25-year-old Alexandra and her 18-year-old sister Andrea.
Hundreds of thousands of people watch their games of chess on Twitch and YouTube.
After chess-based drama The Queen’s Gambit soared to popularity on Netflix, Radio 1 Newsbeat spoke to Alexandra and Andrea about how realistic it is, and what the online chess community is like.
Interviews by Annabel Rackham, edited by Kirsty Grant.
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