https://salernoonline.net/story.php?title=backgammon-running-game-doubles Doubling situations in running games can be divided into four types: last-throw situations, other calculable situations, no-miss situations and formula situations. The easy formula is this. If Black's pip count is 10 per cent or more higher than yours, double him. If he doubles you, take it unless your count is 15 per cent or more above his, in which case drop. Thu, 17 Jun 2010 19:10:11 CEST en