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TriTangle is essentially the upper three axes of a bandaged Impossiball (aka Kilominx), with the shape of an asymmetrically flattened trigonal dipyramid.
TriTangle was developed to make use of the near five-way symmetry produced by a diagonal slice through the trigonal dipyramid shape. In order to achieve true five-way symmetry, the dipyramid had to flatten somewhat into the form used for the TriTangle. The result is a puzzle that seems very simple. But due to the bandaging and the constant shape-shifting, TriTangle can be tricky to solve despite only having seven moving parts visible.
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