The map drawn by Lu Yuwen spanned from the Jiaolonghai Railway overpass in the east to Xuzhou Amusement Park in the west, Quanshan Forest Park in the south to Yangtun Station in the north—the whole area was divided into equal blocks of 100 squares.
Eighteen connecting blocks were located at the southwest corner of the map, and Su Man suggested that they should start putting the puzzle together from these blocks.
However, Lu Yuwen proposed that they should start from the northeast corner, where numerous machine factories, coal factories, fertilizer plants, and electrical machinery factories were scattered. This area was an industrial park, which made it easier to identify the blocks when looking for them because of their distinct features.
It was easy to strategize on paper, but the execution was extremely challenging in reality.
Lu Yuwen and Su Man spent an entire day only to piece together... two blocks.
