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

Quadruple snapback]
PL[B]

AB[ff][gf][hf][kf][lf][mf][fg][ig][jg][kg][mg][fh][gh][hh][kh][mh][gi][li][gj][lj][fk][hk][kk][lk][mk][fl][hl][il][jl][ml][fm][gm][hm][km][lm][mm]
AW[ee][fe][ge][he][je][ke][le][me][ne][ef][if][jf][nf][eg][hg][ng][eh][ih][jh][lh][nh][ei][fi][hi][ii][ki][mi][fj][hj][jj][kj][mj][nj][ek][gk][ik][jk][nk][el][kl][nl][em][im][jm][nm][en][fn][gn][hn][in][kn][ln][mn][nn]


;
)
