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I have never seen the Pyraminx. I wonder if somebody could tell me

whether the picture I put together from the various comments made about

the Pyraminx is correct?

I am fairly certain that the Pyraminx is a regular tetrahedron. In the

solved state each of the four faces shows only one of the four colours.

I think the Pyraminx is cut along 8 planes, two planes perpendicular to

each of the four heights (i.e., the four lines that connect a corner with

the center of the opposite face). I think for the Pyraminx those planes

intersect the height at about 2/5 and 3/5 of the length of the height.

Those planes cut the Pyraminx into 15 pieces (1 central piece, 4 corners,

4 inner pieces, and 6 edes), which are all visible. Each face is cut

into 10 facelets by them as follows.

+ / \ / \ / \ / \ / \ +-----------+ / \ / \ / \ / \ +-----+-----+-----+ / \ \ / / \ / \ \ / / \ / \ + / \ / \ / \ / \ / \ / \ / \ +-----------+-----+-----------+

The Pyraminx Star was descibred as a Pyraminx without the centers.

So I guess each face of the Pyraminx Star looks as follows.

+ / \ / \ / \ / \ +---------+ / \ / \ / \ / \ / \ / \ / \ / \ +---------*---------+ / \ / \ / \ / \ / \ / \ / \ / \ / \ / \ / \ / \ +---------+---------+---------+

The Pyraminx Snub was described as a Pyraminx without the tips.

So I guess each face of the Pyraminx Snub looks as follows.

+-----------+ / \ / \ / \ / \ +-----+-----+-----+ \ \ / / \ \ / / \ + / \ / \ / \ / \ / +-----+

I have no idea what Pyraminx Senior and the Pyraminx Master look like.

Have a nice day.

Martin.

-- .- .-. - .. -. .-.. --- ...- . ... .- -. -. .. -.- .- Martin Sch"onert, Martin.Schoenert@Math.RWTH-Aachen.DE, +49 241 804551 Lehrstuhl D f"ur Mathematik, Templergraben 64, RWTH, 52056 Aachen, Germany