“She was not an important player by their standards; the only unusual thing about her was her sex, and even that wasn’t unique in Russia. There was Nona Gaprindashvili, not up to the level of this tournament, but a player who had met all these Russian grandmasters many times before. ”
  
  Excerpt From
  The Queen's Gambit
  Walter Tevis
  This material may be protected by copyright.

Looks like Netflix changed the description of Nona from how she was depicted in the book.