(;GM[1]FF[4]SZ[19]
GN[]
PC[https://senseis.xmp.net/?Imagist/DifficultProblemSolution]AP[GoWiki:2009]
DT[2020-04-25]
C[Diagram from https://senseis.xmp.net/?Imagist/DifficultProblemSolution

]
PL[B]

AB[ba][bb][gb][cc][dc][gc][cd][ed][fd][ce][de]
AW[ca][ab][cb][fb][bc][fc][hc][bd][gd][id][be][ge][cf][df][ef]

;B[fa]C[B1]MN[1]
;W[hb]C[W2]MN[2]
;B[ga]C[B3]MN[3]

;
)
