Though the chatbot can also write complex code, has passed a law exam, and much more, it repeatedly loses a simple game of tic-tac-toe and does not even realise it until told.

We’ll all be familiar with Tic-Tac-Toe, or Noughts and Crosses, a childhood pencil-and-paper diversion which has formed the basis of many a coding exercise. It’s an easy enough task to … ...