Rugby union is complex and tactical. Thankfully not everyone needs to understand the intricacies of scrummaging technique, or be in total command of the laws around the breakdown, to fully enjoy the spectacle.
Mercifully, too, there are some aspects of the game that remain pleasingly straightforward. A try is touched down behind the try-line, a conversion has to be kicked between the sticks, and a pass from the hands of one player to another must go backwards to be legal. Right? Wrong, judging by the denouement of the Calcutta Cup thriller at Twickenham last Saturday.
