Premise: The 2015 FIFA U-20 World Cup was the twentieth edition of the U-20 World Cup since its inception in 1977 as the FIFA World Youth Championship. The competition took place for the first time in New Zealand, the third time on Oceanian soil after Australia staged the 1981 and 1993 editions. A total of 52 matches were played in seven host cities.
Hypothesis: no more than 52 matches were needed