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

]
PL[B]

AB[ff][gf][lf][mf][fg][gg][lg][mg][hh][ih][jh][kh][hi][ii][ji][ki][hj][ij][jj][kj][hk][ik][jk][kk][fl][gl][ll][ml][fm][gm][lm][mm]
AW[he][ie][je][ke][hf][if][jf][kf][hg][ig][jg][kg][eh][fh][gh][lh][mh][nh][ei][fi][gi][li][mi][ni][ej][fj][gj][lj][mj][nj][ek][fk][gk][lk][mk][nk][hl][il][jl][kl][hm][im][jm][km][hn][in][jn][kn]


;
)
