The problem with round robins is that they are an open commitment on my time. When a round robin ends depends on the number of entrants, which cannot be known in advance. It's not the time itself that I mind about, but I shall need to go to bed sometime, so the tournament had better be over by then.I am planning the fourth KGS computer Go tournament for Sunday July 10th. It will be 9x9, and will, like the third, start at about 16:00 GMT. I plan to retain the two-division system. Provisionally I am thinking of time limits of 15 minutes each sudden death, and an eight-round Swiss format (if there are fewer than eight entrants in either division, some pairings will be repeated). If anyone would like some changes to this, they should let me know soon, before I finalise it.Nick, I really enjoyed the round robin format. Is there any chance we could have another round robin?