(;GM[1]FF[4]SZ[19]
GN[Inferior way]
PC[https://senseis.xmp.net/?IgoHatsuyoRonProblem21/Solution]AP[GoWiki:2009]
DT[2023-01-30]
C[Diagram from https://senseis.xmp.net/?IgoHatsuyoRonProblem21/Solution

Inferior way]
PL[B]

AB[pb][md][nd][od][pd][of]
AW[ic][lc][mc][nc][oc][le][oe][qe][nf][qf][og]

;B[qd]C[B1]MN[1]
;W[rb]C[W2]MN[2]
;B[rc]C[B3]MN[3]
;W[pc]C[W4]MN[4]
;B[qb]C[B5]MN[5]
;W[qc]C[W6]MN[6]
;B[ra]C[B7]MN[7]
;W[rd]C[W8]MN[8]
;B[sb]C[B9]MN[9]
;W[re]C[W10]MN[10]

;
)
