In the final episode of the mini-series, the women's world champion Nona Gaprindashvili is mentioned as having "never faced men", despite the real-life Gaprindashvili frequently playing against male opponents, including top-level grandmasters. In response, Gaprindashvili said it is dishonouring to have misinformation spread about someone's achievements. She sued Netflix for $5 million in a defamation lawsuit in September 2021, and called for the line that claimed she had never faced men to be removed. The case was settled in September 2022, on undisclosed terms.
