(;GM[1]FF[4]SZ[19]
GN[Black to play and kill the invader, WC.]
PC[http://senseis.xmp.net/?KyuExercise40/Solution]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?KyuExercise40/Solution

Black to play and kill the invader, WC.]
PL[B]

AB[ga][ha][fb][gb][ac][bc][ec][fc][cd][dd][ed]
AW[ia][cb][hb][ib][gc][hc][ad][bd][fd][gd][ae][ce][ee][bf][cf][ef]
CR[cb]


;CR[cb]
)
