 The object of the game is to score 5 cribbages out of a possible 8 in a full rack of 15 balls.A cribbage is a pair of numbered balls which, when added together, total to 15 points.A cribbage only lies where the two partner balls forming the cribbage are each legally made, i.e., where no is committed on the same strokes that pocket the balls, or the shot is otherwise deemed illegal.