Attempts:

1. Wait for the page to finish downloading. 
2. Press the "Suffle cards" button. 
3. Click on a blank card to reveal its image. 
4. Click on a second blank card - the idea is

to find the first card's partner. 
ie. 2 cards with the same image. 
5. If the two images are the same, then repeat 

from step 3 until all of the images are 
paired up and visible. 
6. If the 2 images are not the same, then 

clicking on a third card will cover the
first two again, and let you start over
from step 3.... all in one mouse click. 
7. Confused? It's easier just to play the game! 
8. Close this window when you have finished playing.