Do puzzles make us happy? They give us order to the chaos we feel and give us something to focus on. So say psychologists. But does that really explain the lure of Wordle?
The Wordle craze taking over the internet
Glossary
Josh Wardle - A software engineer who works for Reddit.
Tangrams - The tangram puzzle consists of seven flat pieces which together make a square.
Sudoku - A type of puzzle in which you have to work out missing numbers. Although the name is Japanese, it is believed to have been invented by an American in the 1970s.
Dopamine - A hormone and neurotransmitter that plays several important roles in the brain and body, providing us with positive sensations, rewarding us for evolutionarily good behaviours like eating food.
Anthropologist - Someone who studies human beings and societies. The word "anthropology" comes from the Greek "anthropos", meaning "human". It developed as a subject in Europe in the 19th century, although some regard the Arab historian Ibn Khaldun as the first anthropologist.