(;GM[1]FF[4]SZ[19]
GN[Failure]
PC[http://senseis.xmp.net/?GokyoShumyoSection1Problem28/Solution]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?GokyoShumyoSection1Problem28/Solution

Failure]
PL[B]

AB[eq][fq][gq][hq][dr][ir][ds]
AW[dp][ep][fp][gp][ip][bq][dq][jq][cr][jr][fs]

;B[hs]C[B1]MN[1]
;W[er]C[W2]MN[2]
;B[fr]C[B3]MN[3]
;W[cs]C[W4]MN[4]

;
)
