(;GM[1]FF[4]SZ[19]
GN[Failure at 1]
PC[http://senseis.xmp.net/?GokyoShumyoSection1Problem72/Solution]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?GokyoShumyoSection1Problem72/Solution

Failure at 1]
PL[W]

AB[bk][ck][dk][el][em][en][eo][cp][dp][bq][cr]
AW[bl][cl][dl][dm][bo][co][do][bp]

;W[dn]C[W1]MN[1]
;B[ap]C[B2]MN[2]

;
)
