This is a problem from the Xuanxuan Qijing. In tasuki's and uliGo's sources, this is problem number 260.
/Attempts /Solution
Aliases (info)XuanxuanQijingPro...
PathsUnderTheStonesPro...XuanxuanQijingPro...
Sub-pagesAttemptsSolution
Referenced byXuanxuanQijingPro...