<prompt> Qedela umusho olandelayo: UKarff wadlala eMqhudelwaneni Wamazwe Omhlaba Wabesifazane We-Chess: 1937 Stockholm, edlalela iPalestine futhi efaka indawo yesithupha eyawina uVera Menchik; 1939 Buenos Aires, edlalela i-U.S. futhi efaka indawo yesi-5 eyawina futhi yi-Menchik;  <response>: Ngo-1949 eMoscow, edlalela i-U.S. eyanqotshwa uLyudmila Rudenko. Lapho i-FIDE isungula iziqu ngo-1950, uMona May Karff wayengomunye wabesifazane abathathu baseMelika ukuthola isihloko se-International Woman Master. 