(;GM[1]FF[4]SZ[19]
GN[Variation at 7]
PC[http://senseis.xmp.net/?GokyoShumyoSection1Problem79/Solution]AP[GoWiki:2009]
DT[2013-04-08]
C[Diagram from http://senseis.xmp.net/?GokyoShumyoSection1Problem79/Solution

Variation at 7]
PL[B]

AB[oa][ob][lc][qc][rc][ld][md][nd][od][pd]
AW[ka][ma][jb][lb][nb][kc][mc][nc][oc][kd][rd][le][qe][mf][of][qg]

;B[pc]C[B1]MN[1]
;W[sc]C[W2]MN[2]
;B[sb]C[B3]MN[3]
;W[ra]C[W4]MN[4]
;B[qa]C[B5]MN[5]
;W[qb]C[W6]MN[6]
;B[pb]C[B7]MN[7]

;
)
