Well, it's not enough to play round robin. Because 2x2x6=24, there are only twenty-four matches, and the round robin needs 7+6+5+4+3+2+ 1=26, which is more than the most matches. So they were divided into two groups, and the group match was held first. Four teams in each group played 3+2+ 1=6 games, that is, 12 games. Each group selects the top two to enter the semi-finals. In the rematch, the first team is the first pair, the second team is the second pair, and the second team is the first pair.

The winning team will enter the finals, and the losing team will enter three or four games. 1-4 ranking is determined by the semi-finals, and 5-8 is determined by the number of wins and losses in the group stage. If there is a match with the same outcome in the group stage, the ranking can be decided according to the outcome between the two teams. ?

Well, the table below makes it very clear.

I am not very good at writing.

Please translate for LX students.