(;GM[1]FF[4]SZ[19]
GN[When Black wins the ko]
PC[https://senseis.xmp.net/?L2GroupWithDescent]AP[GoWiki:2009]
DT[2023-02-19]
C[Diagram from https://senseis.xmp.net/?L2GroupWithDescent

When Black wins the ko]
PL[B]

AB[aa][ca][ea][bb][eb][ac][dc][fc][dd][ce][de][bf][ag][cg]
AW[da][cb][db][cc][ad][bd][cd][be][af]
CR[ea]

;B[ba]C[B1]MN[1]

;CR[ea]
)
