(;GM[1]FF[4]SZ[19]
GN[Failure at 7]
PC[http://senseis.xmp.net/?GokyoShumyoSection1Problem55/Solution]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?GokyoShumyoSection1Problem55/Solution

Failure at 7]
PL[W]

AB[ma][na][ib][lb][qb][jc][lc][nc][kd][nd][od][qd][qe][kf][mf][pf][ng]
AW[la][pa][kb][mb][ob][mc][oc][pc][md][pd][ne][oe]

;W[oa]C[W1]MN[1]
;B[ka]C[B2]MN[2]

;
)
