This game is a single-player game based on the contract bridge rules. Without auction/bidding, it automatically determines how many tricks the declarer should win.
How many tricks you and your AI partner win together is the key to winning the game. You should have tricks no less than the standard (as the par for the declarer) to get the points.
Although you have a very powerful AI partner, it's not easy to play against the other two. If failed, you can try the replay feature at the end of the deck to improve your skill.
Ironman mode is available when your score is no less than 500.