Ask the expert to answer, 12 people participate in the single knockout, and the top four players have several rounds and games.

12 people. In the first round, bye selected four seed players.

In the first round, eight unseeded players drew lots to decide four games.

In the second round, four seeded players in the first round drew lots with four unseeded players who won in the first round, and four games were played.

Third round, semi-final, 2 games

Fourth round, third and fourth finals, finals, two games.