Date: 28 Sep 1982 2102-PDT From: ISAACS at SRI-KL Subject: Meffert Catalogue To: cube-lovers at MIT-MC I recieved a copy of the Meffert "Pyraminx" catalogue a couple of days ago. The only solid axis-rotation puzzles not already mentioned in the Scientific American article or the OMNI article are the Pyriminx Magic Triangle, Pentagon, and Hexagon, 3 puzzles, all prisms of the named shape, each side face with 9 squares, and the top and bottom the appropriate n-gon with corners, edges, and a center. Ie, the Magic Hexagon has a hexagon on top and bottom, with 6 corners and 6 edges. These should be similar to a cube, except, of course, the side faces cannot make quarter turns. Also in the catalogue are a junior and senior "Magic Barrell", a 3-layered cylinder with 2 (jr) or 3 (sr) arcs cut down from top to bottom, which look as if they allow half twists; a Double Pyraminx, an octagon with 4 triangles per side, which I would assume twists about the 4 central hexagons, and is mechanically similar to the Skewb. Also shown are some textured pyraminxes, the Pyraminx Star, with small tetrahedra on several Pyraminx faces (it looks strange, but is equivalent to the Pyraminx, I assume); some bead puzzles (a version of the Hungarian Rings, another related to the Orb), some sliding block puzzles, a group of tetrahedron dissections (into 2, 3, 4, 5, and 6 pieces),and a couple of jigsaw-like puzzles. It's quite a catalogue, but he says most of the items are not yet in production! More waiting. -- Stan -------