(;GM[1]FF[4]SZ[19]
GN[Double ko life]
PC[http://senseis.xmp.net/?KyuExercise40/Attempts]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?KyuExercise40/Attempts

Double ko life]
PL[B]

AB[ea][ga][ha][bb][fb][gb][ac][bc][cc][ec][fc][cd][dd][ed]
AW[ba][da][ia][ab][cb][db][eb][hb][ib][gc][hc][ad][bd][fd][gd][ae][ce][ee][bf][cf][ef]

;B[dc]C[B1]MN[1]
;W[fa]C[W2]MN[2]
;B[aa]C[B3]MN[3]
;W[de]C[W4]MN[4]
;B[ca]C[B5]MN[5]

;
)
