(;GM[1]FF[4]SZ[19]
GN[The alternative way does not work.]
PC[http://senseis.xmp.net/?GradedGoProblemsForBeginners/Vol4Prob18]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?GradedGoProblemsForBeginners/Vol4Prob18

The alternative way does not work.]
PL[B]

AB[dm][em][fm][gn][hn][co][fo][ho][fp][cq][fq][lq]
AW[en][fn][eo][go][ep][gp][eq][hq]
LB[iq:a]

;B[gq]C[B1]MN[1]
;W[hp]C[W2]MN[2]
;B[hr]C[B3]MN[3]
;W[ir]C[W4]MN[4]
;B[gr]C[B5]MN[5]
;W[hs]C[W6]MN[6]
;B[er]C[B7]MN[7]
;W[gs]C[W8]MN[8]
;B[fr]C[B9]MN[9]
;W[dr]C[W10]MN[10]

;LB[iq:a]
)
