There are 6 matching pairs within the cards.
Click on any square to turn the card face up. Then click on its matching card. If you are correct, they are both colored the same and removed from play. If you are wrong, they are flipped back over and you get to try again.
Your score is based on time. You get a higher score for matches made early in the game -- lower scores for matches made later in the game. Incorrect matches subtract 10 points from your score.
When ready, close this window.