(;GM[1]FF[4]SZ[19]
GN[White to save the four stones]
PC[https://senseis.xmp.net/?GokyoShumyoSection4Problem81]AP[GoWiki:2009]
DT[2022-12-31]
C[Diagram from https://senseis.xmp.net/?GokyoShumyoSection4Problem81

White to save the four stones]
PL[W]

AB[db][dc][fc][gc][cd][hd][ce][ge][he][cf][ef]
AW[cb][cc][hc][bd][dd][ed][fd][gd]
CR[dd][ed][fd][gd]


;CR[dd][ed][fd][gd]
)
