Google is celebrating the invention of the Rubik's cube with an interactive Google doodle which is in the form of a Rubik's Cube. Invented 40 years ago by Erno Rubik, a professor of architecture at the University of Budapest, the Rubik's cube became one of the most popular toys worldwide.
Google's interactive doodle is a 3x3x3 rendition of a Rubik's cube and allows you to shift rows and columns to match up colors. You can rotate the sides of the cube by swiping outward and shift tiles by swiping inward. There is also a move counter that lets you see how long it takes you to solve the puzzle, along with social sharing buttons that allow you to share your scores with your friends.
If you're looking for some inspiration, check out Mats Valk from Netherlands solving a 3x3x3 Rubik's cube in 5.55 seconds: