How do 30 people win the championship and runner-up in two hours (chess)? There is no timer.

Scheme 1: In the knockout stage, players from 15 will be eliminated in the first round (players will be promoted after drawing lots), and one of them will be promoted directly in the second round, and the remaining players from 14 will compete for seven places, and then compete for the championship in eight, four and two.

Option 2: Take five rounds of points round robin, and the one with the highest points will win the championship. If there are the same points, compare each other's points.

Either way, you must play at least five games of chess, and it is stipulated that players should not walk too slowly. If both sides can't win for a long time, every second counts.