<prompt> Ngwala tšwetšopele ya serapa se - Karff o ile a bapala Dipapading tše Tharo tša Lefase tša Basadi tša Chess: 1937 Stockholm, a bapala bakeng sa Palestina gomme a bea wa botshelela o fentšwe ke Vera Menchik; 1939 Buenos Aires  <response>: , go bapala bakeng sa U.S. le go bea 5th e bile e thopilwe ke Menchik; 1949 Moscow, go bapala bakeng sa U.S. e thopilwe ke Lyudmila Rudenko. Ge FIDE e be e hloma maina ka 1950, Mona May Karff e be e le yo mongwe wa basadi ba bararo ba Amerika bao ba ilego ba amogela leina la International Woman Master. 