(;GM[1]FF[4]SZ[19]
GN[pattern on level 0 and 1]
PC[http://senseis.xmp.net/?PatternMatching]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?PatternMatching

pattern on level 0 and 1]
PL[B]

AB[hh][ih][jh][kh][hi][ii][ji][ki][hj][ij][jj][kj][hk][ik][jk][kk]
AW[hg][ig][jg][kg][gh][lh][gi][li][gj][lj][gk][lk][hl][il][jl][kl]


;
)
