'First of all you must be patient, then you need spatial memory': The man behind the puzzle that 99% can't solve

'First of all you must be patient, then you need spatial memory': The man behind the puzzle that 99% can't solve'First of all you must be patient, then you need spatial memory': The man behind the puzzle that 99% can't solve External link

In 1975, the Hungarian academic Ernő Rubik applied for a patent on his invention. Little did he know that his ingenious teaching tool, created behind the Iron Curtain, would become an iconic global phenomenon.

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