(;GM[1]FF[4]SZ[19]
GN[corner]
PC[http://senseis.xmp.net/?posting=9986]AP[GoWiki:2009]
DT[2014-03-12]
C[Diagram from http://senseis.xmp.net/?posting=9986

corner]
PL[W]

AB[dc]
CR[df]
LB[cg:a]

;W[ce]C[W1]MN[1]
;B[bc]C[B2]MN[2]

;CR[df]
LB[cg:a]
)
