40th anniversary of the famous Rubik’s cube

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To celebrate the puzzle’s 40th anniversary, today’s Google Doodle is a fully-functional Rubik’s Cube! If you had a cube for every possible arrangement of the 54 colored squares, and you laid them end-to-end, those 43,252,003,274,489,856,000 cubes would extend 261 light years.

But no single Rubik’s cube can be configured to all of those Rubik’s universes.

If the traditional cube isn’t challenging enough for you, you can head over to the Chrome Cube Lab and try your digital hand at some other cubic puzzles.

The folks at Numberphile took an in-depth look at the math behind a Rubik’s Cube in a series of videos on YouTube.

Here is a video of the doodle Rubik’s cube being solved:

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