Max Euwe makes the first move in Browne v Karpov (Amsterdam 1976)

Tony Miles’ 1…a6 is not the worst insult Karpov has suffered during a game. Four years earlier Walter Browne showed his utter contempt for the World Champion by arriving at the board in a shirt he had acquired working as an extra on US cop show Hawaii Five-O.

The suit won in 73 moves.