How to arrange domestic 10 chess games?

If there is enough time, you can arrange a round robin, first eliminated, winning 2 points, drawing 1 point, without losing points, eliminating 4 people, then eliminating 2 people, and eliminating 2 people in the top 4. The same round score is the same, and the final round score is added to calculate the total score.

If there is not enough time, draw lots directly, five people will be a group, and one person will be eliminated in round robin, then eight people will draw lots and four people will be eliminated in one round. Everyone won the championship.

If time is still tight, draw lots directly at 10 to eliminate five people, and set a quota to enter the top three in advance by drawing lots. The remaining four people will eliminate two people, and the last three people will cycle. If two people have the same number of wins and losses, play one more game.