 The PyrPlexTM: The object of this puzzle is to assemble 13 pieces into a pyramid shape. Some can do it in a few minutes, others are caught up with the perplexity of it all!12 pieces can be rotated in 2 directions to cover a central block. However, one of the twelve can be determined by logic to fit in only one direction. The central block is a solid 4 cm cube. A later version will incorporate the Pocket CalmPlex MindBlockTM in the 4x4x4 mode ... A future release of puzzle compatibilities - much like the CyliPlexTM and the CyliPuckTM ...
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