KöMaL 2008 K169
Four boys and four girls went dancing. In the first four dances, each boy danced exactly once with each girl. (They remained with the same partner during each dance, and only switched between the dances.) Charles danced the Viennese waltz with Fanny and Bernard danced it with Helen. Albert danced tango with Gaby and David with Fanny. Gaby danced mambo with Charles and Emily with David. Who were the partners dancing the first dance, the English waltz together?
Official text KöMaL. Quoted with source.
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