(;GM[1]FF[4]SZ[19]
GN[Failure.]
PC[http://senseis.xmp.net/?GokyoShumyoSection1Problem91/Solution]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?GokyoShumyoSection1Problem91/Solution

Failure.]
PL[W]

AB[mb][kc][lc][nc][oc][rc][pd][qd][le][lf][mf][ng][og][qg][rg]
AW[mc][md][nd][od][rd][me][oe][pe][qe][re][nf][of]

;W[pc]C[W1]MN[1]
;B[qc]C[B2]MN[2]
;W[pb]C[W3]MN[3]
;B[ob]C[B4]MN[4]
;W[pa]C[W5]MN[5]
;B[qb]C[B6]MN[6]

;
)
