(;GM[1]FF[4]SZ[6:7]
GN[Passing disallowed?]
PC[http://senseis.xmp.net/?GroupTax/Discussion]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?GroupTax/Discussion

Passing disallowed?]
PL[B]

AB[ba][da][ab][bb][cb][db][cc][cd][ae][be][ce]
AW[ea][eb][fb][dc][ec][fc][dd][fd][de][ee][fe][af][bf][cf][df][ff][bg][dg][eg][fg]


;
)
