(;GM[1]FF[4]SZ[19]
GN[White to make black alive]
PC[http://senseis.xmp.net/?WorstMoveProblem11/Solution]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?WorstMoveProblem11/Solution

White to make black alive]
PL[W]

AB[mn][lo][no][lp][np][op][lq][oq][lr][mr][nr][or][pr]
AW[ml][jm][lm][nm][ln][nn][qn][ko][oo][po][kp][pp][kq][pq][ir][kr][qr][os][ps]
LB[mq:a]

;W[mp]C[W1]MN[1]

;LB[mq:a]
)
