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Pupils enjoy Pyraminx fun
Updated: Sep 13, 2017
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Children showcase their Pyraminx cubes at Hengchangdianxiang Primary School, Yuquan district in Hohhot on Sept 12, 2017. The Pyraminx is a regular tetrahedron puzzle in the style of a Rubik’s Cube. First conceived in 1970, it was patented by Uwe Mèffert after the original three layered Rubik’s Cube by Erno Rubik, and was introduced by Tomy Toys of Japan in 1981. [Photo/Xinhua]
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