(;GM[1]FF[4]SZ[19]
GN[White to play. Where's the vital point to make the black group alive?]
PC[http://senseis.xmp.net/?WorstMoveProblem9]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?WorstMoveProblem9

White to play. Where's the vital point to make the black group alive?]
PL[W]

AB[hg][ig][jg][gh][hh][jh][kh][gi][ki][gj][hj][kj][hk][ik][jk][kk]
AW[hf][if][jf][fg][gg][kg][lg][fh][lh][fi][li][fj][lj][gk][lk][gl][hl][il][jl][kl][mm]


;
)
