(;GM[1]FF[4]SZ[19]
GN[Failure 4 Variation]
PC[https://senseis.xmp.net/?GokyoShumyoSection1Problem49/Solution]AP[GoWiki:2009]
DT[2023-01-13]
C[Diagram from https://senseis.xmp.net/?GokyoShumyoSection1Problem49/Solution

Failure 4 Variation]
PL[B]

AB[lb][mb][qb][mc][oc][qc][pd]
AW[kb][rb][kc][lc][rc][md][nd][qd][qe][of][qg]

;B[la]C[B1]MN[1]
;W[na]C[W2]MN[2]
;B[oa]C[B3]MN[3]
;W[nb]C[W4]MN[4]
;B[nc]C[B5]MN[5]
;W[qa]C[W6]MN[6]
;B[pa]C[B7]MN[7]
;W[pc]C[W8]MN[8]
;B[ra]C[B9]MN[9]
;W[od]C[W10]MN[10]

;
)
