This list: https://en.wikipedia.org/wiki/List_of_chess_players_by_peak_FIDE_rating https://en.wikipedia.org/wiki/List_of_chess_players_by_peak_... has the top w

This list: https://en.wikipedia.org/wiki/List_of_chess_players_by_peak_FIDE_rating https://en.wikipedia.org/wiki/List_of_chess_players_by_peak_... has the top woman at position 59. So it seems, yes, there is a pretty clear gender gap.