The Pyraminx is a puzzle similar to the Rubik's Cube but in the shape of a tetrahedron. It was invented by Uwe Meffert in 1969 a few years before the original Rubik's cube was invented. At first he made it for a stress-management tool. You would spin it to calm yourself down. The Pyraminx has 933,120 possible permutations (positions) and the lowest possible number of moves you need to do to solve it is 11 moves. It is simpler than the normal Rubik's Cube, but spinning one side will affect three other sides, meaning that using algorithms is a must in order to maintain already solved sides.