Our strategy for Mine and Dine level 17-5 is to fire the Blue bird head-on into the ice of the left structure, splitting as late as possible. Ideally, you would like to clear all pigs from the left side with this shot. Lob the Yellow bird into the left foot of the right structure, causing the central beams to lift and splitting the tower in two. If necessary, use the Red bird to topple the tower. The score in the video below is 96,690.