(;GM[1]FF[4]SZ[19]
GN[19x19 diagram]
PC[http://senseis.xmp.net/?FormalDefinitionOfGroup]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?FormalDefinitionOfGroup

19x19 diagram]
PL[B]

AB[dd][ld][de][le][df][lf]
AW[hb][hc][hd][hf][hg]
SQ[ee][fe][ge][he][ie][je][ke]


;SQ[ee][fe][ge][he][ie][je][ke]
)
