Seven teams decided the champion and runner-up by elimination system. How many games will a * * * play?

Because it is a knockout system, that is to say, if you fail once, you will be eliminated. Now seven teams can only form three pairs. One of the three couples will be bye-bye, so there will be three games in the first round. Third, if there are three winners in the division, the first round of bye, just four people can form two pairs, indicating that there are two games; So there are two winners, and these two winners will compete for the first place and the second place. So a game of * * * is better than 3+2+ 1=6 games.