(;GM[1]FF[4]SZ[19]
GN[corner]
PC[http://senseis.xmp.net/?posting=3728]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?posting=3728

corner]
PL[B]

AB[dd]
AW[cj]
CR[cj]
LB[di:a]

;B[ci]C[B1]MN[1]
;W[dj]C[W2]MN[2]
;B[cl]C[B3]MN[3]
;W[cg]C[W4]MN[4]

;CR[cj]
LB[di:a]
)
