Newcomers Uzbekistan will meet the defending champions, the Czech Republic, in the quarter-finals of the 2011 World Online Debating Championships. Others still in the fight to be crowned World Champion include Canada, Mexico and Romania.
Competitors have been tested to the limit, with some tough topics demanding research, quick thinking and teamwork. Should the UN Human Rights Council be abolished? Must the export of nuclear reactor technology be banned? Should Latin America share a single currency?
There have been some high quality debates. As Andy Hume, former world champion and WUDC chief adjudicator, wrote of the Canada v Australia clash, "this was an impressive debate and both sides deserve credit for the calibre of their argumentation".