(;GM[1]FF[4]SZ[19]
GN[Variation]
PC[http://senseis.xmp.net/?WorstMoveProblem6/Solution]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?WorstMoveProblem6/Solution

Variation]
PL[W]

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

;W[ca]C[W3]MN[3]
;B[ba]C[B4]MN[4]
;W[bb]C[W5]MN[5]
;B[cb]C[B6]MN[6]

;
)
