Memory Blocks Demo

At the beginning of game Memory Blocks on a game field there are 8, 18 or 32 pairs closed pictures.
The player can open sequentially pictures in any order,
however in open form no more than two pictures at the same time will be visible.
When opening each picture the rating decreases on 1.
If the player opens two identical pictures - this pair will be removed from the screen, and the rating will be increased on 4.
To finish game, you need to remove all pictures from the screen.

Version demonstration. Has time limits on use, аnd doesn't participate in the table of records