POTTSVILLE — Puzzles in Pottsville, an official World Cube Association Rubik’s Cube competition, brought around 70 cubers to Pottsville Area High School for a day of solving on Saturday. Competitors ...
Mathematicians and hobbyists have had a half-century of fun exploring the 43 billion billion permutations of Erno Rubik’s creation. “My method was understanding,” Erno Rubik said of the iconic twisty ...
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