(;GM[1]FF[4]SZ[19]
GN[Failure]
PC[http://senseis.xmp.net/?KyuExercise149/Solution]AP[GoWiki:2009]
DT[2010-01-03]
C[Diagram from http://senseis.xmp.net/?KyuExercise149/Solution

Failure]
PL[W]

AB[no][oo][po][so][jp][lp][mp][qp][rp][jq][lq][nq][oq][qq][jr]
AW[qm][on][pn][rn][qo][ro][pp][mq][rq][kr][lr][mr][nr][or]

;W[pr]C[W1]MN[1]
;B[qr]C[B2]MN[2]
;W[pq]C[W3]MN[3]
;B[rr]C[B4]MN[4]

;
)
