1) Preliminary stage - selection using an Olympic system, 1-2-3 rounds with eight players. In this case, stronger players are deliberately paired with less experienced ones.
2) Main stage - round-robin tournament in 1 or 2 rounds. The composition of the round-robin tournament will be more balanced after the selection stage. And there will be less chance that a player in the round-robin tournament will lose, for example, 3 games in a row. And those who take 1st-3rd place will be allowed to skip the selection stage and go directly to the main stage in the next tournament. That is, combine the tournaments into a single system.