Fans say the puzzle is getting harder, with some swearing they’ve had enough. We look at the psychology behind the game’s appeal and the rising discontent among players

It started as a token of love, then went viral, and now it’s making people angry. If you noticed that “token”, “viral” and “angry” are all five-letter words, then the chances are you’re a devotee of Wordle, the online word puzzle that has become an internet craze.

For those who have just returned from walking across the Sahel, Wordle is a game in which you have to guess, or work out, a five-letter word. Each day there is a new word. You can have six attempts, and each correct letter selected is awarded a yellow square. If it’s also in the correct place, it’s a green square. All other letters get a grey square.