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

Fourth corner group]
PL[B]

AB[ba][ca][ab][cb][ac][bc]
AW[da][db][cc][dc][ad][bd][cd]


;
)
