As they struggle to stay alive in the race for a postseason berth, the San Francisco Giants simply cannot figure out the rookie-laden San Diego Padres. It was the seventh loss in eight games against the Padres since the All-Star break. ''I wish I could figure it out myself,'' said Bruce Bochy, a former Padres skipper who managed the Giants to World Series titles in 2010, 2012 and 2014.