I asked Damon Lindelof, who co-wrote the pilot with JJ Abrams, if the backgammon scene was an attempt to plant a flag for the series end game. This is what he said:
“We can’t rewrite history and say that at the time the pilot was being constructed we were using phrases like “The Man In Black” and “Jacob,” but we can say that the overriding theme of The Island and what an endgame might look like — and that Locke was the character that was tapped into this almost instantly — was all sort of calibrated. Looking back on that scene, its intention at the time that it was written and its intention today is exactly the same, which is to basically set the stakes for the entire series. At the time that we wrote it, we didn’t think that there was going to be an episode two. At the time that we wrote it, it was a conversation about the good and evil internal in the people themselves. But obviously, as the show grew and blossomed out, that same conversation grew to encompass the nature of The Island and The Island’s affect on those people.”
source : EW
