How the world went wild for Wordle

What's the secret of its success? It is a humble internet word game that went from only 90 players a day to more than 2 million in just a matter of months. While it is no surprise that yet another enjoyable puzzle game has gone viral, unlike the rampant commercialism surrounding the others, its lack of advertising sets it apart. Janine Gibson explores what makes such a simple game so endearing.