CalmPlex PyrPlexTM
Solution
Numbers in (red) are
total solutions possible for that shape.

PyrPlex pyramid (2)
The pyramid shape of the PyrPlex had some design
difficulties to overcome but all seemed to work out.
Some can do this puzzle in a few minutes while others
are completely perplexed. The 12 pieces can be rotated
in 2 directions to cover the central block. However,
one of the twelve can be determined by logic to fit in
only one direction.