If crawling out of bed, showering, and getting dressed every morning already provides you with a significant daily challenge, you’ll want to stay well clear of a new Japanese variant of the iconic Rubik’s Cube that makes lining up the colored squares significantly harder as the squares constantly change color.
source https://gizmodo.com/the-rubik-s-cube-impossible-changes-color-as-it-moves-1848751775
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