Find Set

A puzzle game where you have to find a set of three items.

The principle rule is:
If the two have ...... and the third haven't, it isn't set.

Example:
Three items have diffrent shapes,
Three items have diffrent number of elements.
Three items have the same interior color.
Three items have the same contour color.

Elements have their own characteristics as:
-interior color
-contour color
-shape
-number of elements

You can use item more then one time to diffrent sets.