(;GM[1]FF[4]SZ[19]
GN[Variation at 7 - White's best try]
PC[http://senseis.xmp.net/?GokyoShumyoSection1Problem70/Discussion]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?GokyoShumyoSection1Problem70/Discussion

Variation at 7 - White's best try]
PL[B]

AB[cn][bo][do][dp][ep][eq][gq][ar][br][fr][es]
AW[ap][bp][cp][cq][dq][dr][er][bs][ds]
CR[bs]
LB[aq:a]

;B[as]C[B1]MN[1]
;W[cr]C[W2]MN[2]
;B[cs]C[B3]MN[3]
;W[fs]C[W4]MN[4]
;B[gs]C[B5]MN[5]

;CR[bs]
LB[aq:a]
)
