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A subset of the Big Chop in shape of the tridiminished icosahedron.
This puzzle is a tridiminished icosahedron which can stay in shape. A tridiminished icosahedron is one of the 92 Johnson solid. It has 5 regular triangles and 3 regular pentagons. It can be viewed as an icosahedron where 3 times 5 triangles were chopped of and thereby replaced with one pentagon. One of the triangles behaves as connected to the core.
The puzzle allows three rotations around the edges between two adjacent pentagons. The cuts for these rotations go through the center of the thought-up icoshaedron. The puzzle's axis system is therefore a subset of the BigChop which would have 12 additional cuts like this.
Like all puzzles with this axis system it allows jumbling moves. Only these moves allow the puzzle to change its shape.
The idea for this puzzle was concieved by Krystian Wilisowski but designed by Oskar van Deventer. Krystian's Pyramid is a shape variant of it.
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