KOIN 6 viewer, Brady Dean captured a sea lion swimming through the Willamette River under the Hawthorn Bridge in downtown Portland Tuesday, April 15, 2025.
6y
Any Rubik's Cube can be solved in 20 moves, but it took over 30 years for anyone to figure that out
In 2010, a group of mathematicians used a bank of supercomputers at Google to show any Rubik's Cube could be solved in 20 moves.
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