Pyramid puzzle

A pyramid puzzle is a mechanical puzzle (assembly puzzle) consisting of two or more component pieces which fit together to create a pyramid.

History

Unknown origin. Children of American pioneers played with simple toys such as these.

Solutions

Two-piece pyramid puzzles: A regular pyramid is not possible in this case. Instead, we can only form a 4 faced tetrahedron pyramid.

To do this, make the square faces face each other and twist one upright to complete the four faced tetrahedronic pyramid.

Four-piece pyramid puzzles: Join the four identical pieces in pairs so that the smallest triangular faces meet. Turn the squares to face each other and bring them together. This will leave a square face on the two resulting pieces. With the square sides of the blocks facing each other, twist one piece upright to complete the pyramid.

gollark: ...

gollark: Er, fusion reactors, but same thing.

gollark: How are you doing auto-ore then!?

gollark: Breaking News: RotaryCraft has x13 ore doubling, ~~giant death rays~~ fusion reactors (technically ReC, whatever), gravel guns, that boring machine, etc...

gollark: It has useful RoC stuff, like the world rifts.

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