(;GM[1]FF[4]SZ[19]
GN[Butterfly seven]
PC[http://senseis.xmp.net/?ButterflySeven]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?ButterflySeven

Butterfly seven]
PL[B]

AB[gg][hg][ig][jg][kg][lg][gh][lh][gi][mi][gj][jj][mj][gk][mk][gl][hl][ml][hm][im][jm][km][lm][mm]
AW[hh][ih][jh][kh][hi][ki][li][hj][lj][hk][ik][lk][il][jl][kl][ll]
CR[ji][ij][jk]

;B[kj]C[B1]MN[1]

;CR[ji][ij][jk]
)
