(;GM[1]FF[4]SZ[19]
GN[White still lives]
PC[http://senseis.xmp.net/?Butterfly]AP[GoWiki:2009]
DT[2015-03-22]
C[Diagram from http://senseis.xmp.net/?Butterfly

White still lives]
PL[B]

AB[da][eb][dc][gc][dd][ce][bf][cf][cg]
AW[bb][db][cc][ad][cd][be][de]

;B[ba]C[B14]MN[14]
;W[cb]C[W15]MN[15]
;B[ca]C[B16]MN[16]
;W[ab]C[W17]MN[17]
;B[ec]C[B18]MN[18]
;W[bc]C[W19]MN[19]
;B[af]C[B20]MN[20]
;W[ae]C[W21]MN[21]
;W[fc]C[W23]MN[23]

;
)
