You can choose to play in a single player mode, or play against Maddie. Maddie's strength can be set to one of the 10 levels depending on your preference.
Cards are laid face down, and you turn over two cards at a time. If you flip a pair that match, you will keep the pair. You can continue until you turn over cards that do not match. In the play mode with Maddie, it will become Maddie's turn to play. In the single player mode, you will continue after those non-matching cards get laid face down.
Do you think you can beat Maddie? She is a formidable opponent!