Update: In keeping with the square theme, Google has taken this anniversary as an opportunity to join Instagram, hooray! First post is the Rubik’s Cube in video.

This may just be the best Google Doodle yet: a fully-functional Rubik’s Cube! Click on the small cube to open up the interactive version. Click and drag any row or column to rotate it, and do the same underneath or alongside the cube to turn the entire cube …  expand full story