32 teams are divided into 8 groups for round robin, with 4 teams in each group. * * * Take 8*6=48 games, 16 teams advance.
The quarter-finals: 16 teams are eliminated, it takes 8 games, and 8 teams are promoted.
The quarter-finals: It takes four games to eliminate eight teams and four teams advance.
Semi-final: 4 teams play the knockout round, which needs 2 games, and 2 teams advance.
3. Four finalists: 1 game
Final: 1 game
* * * Requirements: 48+8+4+2+ 1+ 1=64 games.