Yes, first watched Wimbledon on TV in 1968, and played tennis (pretty badly) on and off for the next 10 years. The scoring system is pretty basic - you only have to win four points to win a game (unless it gets to 40-40 or 'deuce' when it can get a bit drawn out), and you need to win six games to win a set (unless it gets to 6-6, in which case....). You need to win two sets or three sets, depending on the rules of the tournament. Couldn't be simpler really, could it?
Have you ever played dominoes?
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On a mountain range
I'm Doctor Strange