It´s ok.
The object of the game is to remove all the cards of the tableu (52 cards, 4 rows of 13 cards each). Most of the cards are covered and only a small number are visible. Select a couple of cards and if they match (same rank) they are discarded. Try to match all the cards before time runs out. When a couple of cards match, a score bonus as well a time bonus is earned.
Click on a card to select it. Matching two cards of the same color results in twice the score bonus and time bonus.
It´s ok.
At first it was kinda weird that some of the cards were faced up and the rest were face down, but it was a very well made in my opinion and very enjoyable to play. I also like the music it's very relaxing tune.