Pyraminx
From Speedsolving.com Wiki
Pyraminx is a rectangular pyramid-shaped (or tetrahedron) puzzle. The parts are arranged in a pyramidal pattern on each side of the puzzle. The layers can be rotated with respect to each vertex, and the individual tips can be rotated as well. It was designed by Uwe Meffert in the early 1970's.
See also:
Links:
- Official Pyraminx scrambler
- Jaap's Pyraminx pages (the java applet found there can be used to find algorithms)