Color Concentration

Memory game.

Pairs of colored squares begin face down. Click on a square to turn it over. Try to find the second color that matches the first. If the second does not match, both squares return to a face down position. If they do match, the squares are removed.

This game depends on Java. If you're having difficulty accessing the game, it is probably due to Java's requirements.
You can read more about how to solve the problem here... Java Application Blocked by Security Settings.