The Pyraminx Duo (originally known as Rob's Pyraminx)[1] is a tetrahedral twisty puzzle in the style of the Rubik's Cube. It was suggested by Rob Stegmann,[1] invented by Oskar van Deventer,[1][2] and has now been mass-produced by Meffert's.[1][3]
- ^ a b c d Twisty Puzzles - Museum - Rob's Pyraminx
- ^ Rob's Pyraminx - YouTube
- ^ Pyraminx Duo Black - Meffert's