The Kansas City Star reports 25 students started the championship round Saturday, but only two remained after 19 rounds.
From there, fifth-grader Sophia Hoffman of Lee's Summit and Kush Sharma, a seventh-grader from Kansas City, buzzed through the list of words provided by the national bee, as well as 20 others plucked from the dictionary.
At about 2 p.m. - five hours after the contest started - bee officials decided not to pull more words from the dictionary and instead decided to continue the competition March 8 at an undetermined library location.
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