(;GM[1]FF[4]SZ[19]
GN[inferior defense]
PC[https://senseis.xmp.net/?GokyoShumyoSection1Problem66/Solution]AP[GoWiki:2009]
DT[2022-12-16]
C[Diagram from https://senseis.xmp.net/?GokyoShumyoSection1Problem66/Solution

inferior defense]
PL[B]

AB[eq][fq][hq][dr][gr][ir][ds]
AW[ep][fp][gp][hp][ip][cq][dq][iq][kq][cr][jr]
LB[er:a]

;B[is]C[B1]MN[1]
;W[fs]C[W2]MN[2]
;B[gs]C[B3]MN[3]
;W[hr]C[W4]MN[4]
;B[fr]C[B5]MN[5]
;W[gq]C[W6]MN[6]
;B[es]C[B7]MN[7]

;LB[er:a]
)
