Since its invention in 1974, the Rubik's cube has taken the world and its hobbyists by storm. But the brightly-colored block puzzle has also fostered some fierce competition, as global puzzle fanatics ...
Google Xuan, 7, left, finished the last few moves on a 3x3 as his brother Enzo Xuan, 12, reacted proudly during a practice speedcubing session. Parents watched a practice speedcubing session on June ...
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