Fascinating to glimpse the different types of Rubik’s Cubes this guy has in his collection. I thought there was only the original! The 17x17x17 cube would be a unique addition for libraries to have available for patrons to borrow.
Seven hours sounds just about right for the average puzzle enthusiast to solve a standard 3x3x3 Rubik’s Cube. But Youtuber RedKB isn’t your average puzzle enthusiast. Instead of tackling a 3x3x3 cube, he solves this incredibly complex 17x17x17 cube designed by Oskar Van Deventer. In the end it took him about seven-and-a-half hours to get all the colored sides put back in order. READ MORE: It Took This Guy Over 7 Hours To Solve the World’s Hardest Rubik’s Cube | Gizmodo
infophile 
I imagine all he could see was cubes for the next few days, 7 hours is something else.
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That 17x17x17 cube is the stuff of nightmares!
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