Pedzisa mutsara unotevera: Kwemakore 37 Joan Caws akashanda soMuchengeti wePfuma weNational Draughts Federation. Mukuwedzera, akavimbwa nehutongi paCharles Walker's yakabudirira kuedza kweNyika panguva imwe chete kutamba rekodhi yekugadzirisa muna 1994 uye pa
Mitambo yeWorld Mind Sports ya2008. Caws akatorawo rutivi rwakashingaira mumushandirapamwe wokuita kuti mitambo yemadhadha ipinde mupurogiramu yeOlympic. Akafa munaNovember 2017, apo Ian Caws akamupfuura nemakore asingasviki maviri.