Group forms

The classic puzzles of BrainBrix provide the sones a honeycomb way. But other group forms exists. And some of these are even more intressting and harder to solve. The following table shwos some interesting group forms.

Group form	Picture	Remarks
Honeycomb		This is the classic arrangement of the BrainBrix stones: the honeycomb shape. The stones are marked with the numbers from 1 to 7.
Diamond		For the diamond shape, the digits 1 through 9 appear in each of the stones once. The higher number of stones lead to more overlays of groups, which usually leads to more difficult puzzles.
Ring		The ring uses the numbers from 1 to 6. There is no stone in the center. The center, of course, could belong to another, overlapping group. This group form uses a fewer number of digits but in most cases harder to solve.
Star or X-Group		Puzzles with the star group form are hard to solve because the numbers 1 to 9 are used and the star leads to confusing overlapping situations.
Hollow Diamond		Corresponds to the diamond shape but the a stone in the middle is missing.
Small Pyramid