Color Pairs

Starting a game, hidden cards appear and a timer starts measuring the playing time.
There is a color graphic behind each card. Two identical color graphics form a pair.
Click on any two cards to reveal those cards
and find the pairs. If a pair is found, it will be removed from the screen.
If the revealed cards do not match, they are turned face down again. When all pairs are found, the timer stops and the game is over.

You can choose between 3 game levels:

16/8 which means
16 cards with a total of 8 pairs

20/10 which means
20 cards with a total of 10 pairs

24/12 which means
24 cards with a total of 12 pairs