中国传统的滑块拼图，你需要将2*2的拼图一路滑到最下面的居中位置

Traditional Chinese sliding block puzzle, you need to slide the 2*2 puzzle all the way to the bottom center position

安装时从上到下安装，最后安装1*1的小块

When installing, install from top to bottom, and finally install the 1*1 small piece

以下是玩法视频

The following is a gameplay video