Archived from the original on Retrieved Campbell, Paul. 58 Sepp Blatter stated in July 2014 that, given the concerns over the completion of venues in Russia, the number of venues for the tournament may be reduced from 12. 231 Broadcastrights to the tournament in the Middle East were hampered by an ongoing diplomatic crisis in Qatar over alleged support of extremist groups. Archived from the original on "Russian Prime Minister Dmitry Medvedev says 2018 fifa World Cup to cost 20 billion dollars". Qatar is the home country of the region's rightsholder, beIN Sports. A total of 64 matches were played in 12 venues across 11 cities. 61 Of the twelve venues used, the Luzhniki Stadium in Moscow and the Saint Petersburg Stadium the two largest stadiums in Russia were used most, both hosting seven matches. The 2018 fifa World Cup was the 21st, fIFA World Cup, an international football tournament contested by the men's national teams of the member associations of, fIFA once every four years. Retrieved "Match report Group H Senegal v Colombia" (PDF). At the first stages, all the participants in Guilfords original study censored their own thinking by limiting the possible solutions to those within the imaginary square (even those who eventually solved the puzzle). Retrieved "Match report Group C Denmark v Australia" (PDF). Archived from the original on Retrieved b "What World Cup fans going to Russia should know". 85 The biggest item of federal spending was the aviation infrastructure (117.8 billion rubles). Archived from the original on Retrieved "Inter Media Group secures World Cup rights in Ukraine".