Octetra a Set of molecular puzzles

Major features

• The Octetra ® is a set of two three-dimensional puzzles based on a physical phenomenon of the dense spatial package of spheres.
• The Octetra ® consists of six parts of three different types.
• Each part is a chain of spheres coupled together rigidly and placed within one plane which is important from the point of view of molding the design.
• Using some of the parts two different shapes may be assembled:
• a tetrahedron 4x4x4 using two parts1 and two parts2
• an octahedron 3x3x3 using three parts1 and one part3.
• Before starting the assembly the suitable parts should be selected.
• Both of the Octetra ® puzzles assemble with mutual parts clutching to form the two firm shapes.
• Judging by the rectangular shape of most of the parts, the solutions are far from obvious.