(;GM[1]FF[4]SZ[19]
GN[Black ''a'' is a mistake]
PC[http://senseis.xmp.net/?posting=909]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?posting=909

Black ''a'' is a mistake]
PL[B]

AB[me][ne][oe][pe][qf][qh]
AW[oc][id][ld][md][nd][qd][kf]
LB[pd:a]

;B[qc]C[B1]MN[1]
;W[pc]C[W2]MN[2]
;B[rc]C[B3]MN[3]
;W[rd]C[W4]MN[4]

;LB[pd:a]
)
