(;GM[1]FF[4]SZ[19]
GN[White to remove the possibility of seki and ko]
PC[http://senseis.xmp.net/?WorstMoveProblem6]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?WorstMoveProblem6

White to remove the possibility of seki and ko]
PL[B]

AB[ea][eb][ac][bc][cc][dc][ec]
AW[fa][fb][fc][ad][bd][cd][dd][ed][fd]


;
)
