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In page Hex (board game):
"As of 2016, there were over-the-board tournaments reported from Brazil, Czech Republic, Denmark, France, Germany, Italy, Netherlands, Norway, Poland, Portugal, Spain, UK and the US.[citation needed] One of the largest Hex competitions is organized by the International Committee of Mathematical Games in Paris, France, which is annually held since 2013.[citation needed] Hex is also part of the Computer Olympiad.[1] During this competition the pie rule is used.
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