[pmontra]

One in a million is more than rolling 4 doubles in a row in backgammon (it's played with two 6 sided dice.) So if a backgammon app or server starts having about 10 thousands players it's not uncommon that every single month (or day) there is such a sequence. Some players will eventually write in a review or in a support forum that the server, the bot, the app cheats against them because of the impossible odds of what just happened. The support staff have to explain the math with dubious results, which is ironic because every single decision in backgammon should be made with probabilities in mind.