King Reza: unless i'm misunderstanding what you're saying, we can already do that. setting the BKR range of people who can accept your invitation is in step 1 of the game creation process.

i was thinking my suggestion of a series of games would be more useful when you're inviting a specific person to play than when you're putting a standing invitation into the waiting room anyway. when you invite a friend, you know you're up for a number of games with them in a row, but you won't know that if you don't know against whom you're going to wind up playing.