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出典:Wikipedia
出典:『Wikipedia』 (2011/06/28 20:25 UTC 版)
The Soma cube is a solid dissection puzzle invented by Piet Hein in 1933 during a lecture on quantum mechanics conducted by Werner Heisenberg. Seven pieces made out of unit cubes must be assembled into a 3x3x3 cube. The pieces can also be used to make a variety of other 3D shapes.
Soma cube