(;GM[1]FF[4]SZ[19]
GN[Failure.]
PC[http://senseis.xmp.net/?BeginnerExercise129/Solution]AP[GoWiki:2009]
DT[2009-10-06]
C[Diagram from http://senseis.xmp.net/?BeginnerExercise129/Solution

Failure.]
PL[B]

AB[oo][po][qo][ro][op][oq][or][pr][ps]
AW[pp][qp][rp][pq][rq][qr]
LB[sr:a][qs:b]

;B[rs]C[B1]MN[1]
;W[so]C[W2]MN[2]
;B[sn]C[B3]MN[3]
;W[sp]C[W4]MN[4]
;B[rn]C[B5]MN[5]
;W[rr]C[W6]MN[6]

;LB[sr:a][qs:b]
)
