A group of 6 people, divided into three groups, single cycle in each group, single cycle in the first three groups and single cycle in the last three groups, requiring 5 1 field;
Divided into four groups, including two five-person groups and two four-person groups. The first place in each group is cross-eliminated, and the second place in each group is cross-eliminated, which takes 40 games;
Divided into six groups on average, each group was single cycle, and the first place in each group was cross-eliminated, which took 27 games.