But you can choose to enter games that are only against your friends - I do every week. (There&#x27;s nothing physically keeping a stranger from joining our game, but since they don&#x27;t know the link, and we all enter as soon as one of us creates the contest and sends us all the link, it&#x27;s unlikely.)<p>OK, I also enter other games, but in those, I typically go for the games that are small, and almost filled, so I can look at the list of other players and only enter if there are no very experienced players there.