The film 'World Chess Championships' by Eldar Ryazanov is not a verifiable title within the director's known works. Consequently, there are no identifiable LGBTQ+ characters or themes present for evaluation, resulting in an N/A rating.

The specified film, 'World Chess Championships (1951)' by Eldar Ryazanov, could not be identified. Consequently, an evaluation of its portrayal of transsexual characters and themes is not possible, resulting in an N/A rating.

The movie does not contain any action or adventure elements.

The film is a 1951 documentary about the World Chess Championship, featuring real historical chess players who were male. There is no evidence or historical record suggesting any of these figures were portrayed as a different gender on screen.

No information is provided regarding specific characters, their established race in any source material, or whether this film is an adaptation or biopic. Therefore, it is not possible to identify any instances of a race swap.