The Stone Sentinel Maze was an array of rocks and boulders thought to be conjured by Zhuge Liang based on the concept of the ba gua. The formation was located on Yufu Shore (魚腹浦) by the Yangtze River near present-day Baidicheng, Chongqing, China, where supposed ruins of the array exist. In folklore, when the Yangtze River rises in summer, th...