Laszlo was casual amateur at chess, and it's an n=3 sample at least. Though one sister 'only' made it to IM, but that was likely more due to social reasons. She

Laszlo was casual amateur at chess, and it's an n=3 sample at least. Though one sister 'only' made it to IM, but that was likely more due to social reasons. She decided to get married, have a family, etc rather than continue on with chess as actively as the other sisters.