(;GM[1]FF[4]SZ[19]
GN[Black to play and kill]
PC[http://senseis.xmp.net/?KyuExercise24]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?KyuExercise24

Black to play and kill]
PL[B]

AB[pm][qm][rm][on][qn][sn][oo][ro][op][mq][oq][pq][nr]
AW[po][so][pp][qp][rp][sp][qq][qr]


;
)
