(;GM[1]FF[4]SZ[19]
GN[W to kill]
PC[https://senseis.xmp.net/?RTGProblem90/Solution]AP[GoWiki:2009]
DT[2022-12-13]
C[Diagram from https://senseis.xmp.net/?RTGProblem90/Solution

W to kill]
PL[W]

AB[ba][bb][ac][bc][cd][dd][ed][fd][ae][be][fe][df][ef][ff]
AW[cb][gb][cc][dc][ec][fc][gd][ce][ge][bf][cf][gf][cg][dg][eg][fg][gg]
LB[de:a]

;W[bd]C[W1]MN[1]

;LB[de:a]
)
