(;GM[1]FF[4]SZ[19]
GN[Counter-exa. 4.9]
PC[http://senseis.xmp.net/?RobertJasiek/SolidConnection]AP[GoWiki:2009]
DT[2011-06-13]
C[Diagram from http://senseis.xmp.net/?RobertJasiek/SolidConnection

Counter-exa. 4.9]
PL[B]

AB[dc][cd][ed][de]

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

;
)
