(;GM[1]FF[4]SZ[19]
GN[If Black loses the ko]
PC[http://senseis.xmp.net/?BeginnerExercise18/Solution]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?BeginnerExercise18/Solution

If Black loses the ko]
PL[W]

AB[ga][gb][hb][kb][lb][hc][ic][jc]
AW[ha][ja][fb][ib][mb][ec][gc][lc][nc][gd][hd][id][jd][kd]

;W[ia]C[W1]MN[1]

;
)
