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Diffstat (limited to 'games/xpyraminx/pkg-descr')
| -rw-r--r-- | games/xpyraminx/pkg-descr | 20 |
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diff --git a/games/xpyraminx/pkg-descr b/games/xpyraminx/pkg-descr new file mode 100644 index 0000000..d5df71b --- /dev/null +++ b/games/xpyraminx/pkg-descr @@ -0,0 +1,20 @@ + The original puzzle has 9 triangles per face (size = 3) and +has period 3 turning (i.e. the face or points turn in 120 degree +intervals). The puzzle was designed by Uwe Meffert and called +the Pyraminx. This has 2^5*3^8*6!/2 or 75,582,720 different +combinations. + Another puzzle Senior Pyraminx 3x3x3 exists only on paper, it +has period 2 turning (i.e. edges turn with 180 degree intervals) +but the corners would fall off unless it had some tricky +mechanism. (This may be the same as the Master Pyraminx which +has 446,965,972,992,000 different combinations). + Another puzzle (which was not widely distributed), the Junior +Pyraminx (and similarly the Junior Pyraminx Star, a octahedron +formed by two tetrahedra, this has 7!*3^6 or 3,674,160 different +combinations), has 4 triangles (size = 2) per face and at the +time I designed this computer puzzle thought that it had only +period 2 turning (i.e the edges rotate). It turns out the puzzle +has a period 4 turning (edges turn with 90 degree intervals) +which makes it analogous to the 2x2x2 Rubik's cube. This puzzle +makes various non-tetrahedral shapes. The puzzle contained here +has no period 4 turning flexability. |
