(;GM[1]FF[4]SZ[19]
GN[Failure 1]
PC[https://senseis.xmp.net/?IgoHatsuyoRonProblem39/Solution]AP[GoWiki:2009]
DT[2023-01-31]
C[Diagram from https://senseis.xmp.net/?IgoHatsuyoRonProblem39/Solution

Failure 1]
PL[B]

AB[qa][ib][ob][rb][ic][jc][oc][rc][kd][md][qd][je][me][pe][qe][of]
AW[oa][jb][pb][qb][kc][lc][mc][nc][pc][nd][pd]

;B[na]C[B1]MN[1]
;W[nb]C[W2]MN[2]
;B[pa]C[B3]MN[3]
;W[ma]C[W4]MN[4]
;B[od]C[B5]MN[5]
;W[lb]C[W6]MN[6]
;B[ja]C[B7]MN[7]
;W[ka]C[W8]MN[8]

;
)
