(;GM[1]FF[4]SZ[19]
GN[White to live]
PC[http://senseis.xmp.net/?GokyoShumyoSection1Problem100/Attempts]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?GokyoShumyoSection1Problem100/Attempts

White to live]
PL[W]

AB[gm][cn][dn][fn][co][go][gp][ip][jp][cq][kq][lq][nq][dr][fs]
AW[dm][im][ho][ep][eq][hq][iq][fr][gr][jr]
CR[dm][im][ho]
LB[ds:b][gs:a][is:c]

;W[er]C[W1]MN[1]
;B[es]C[B2]MN[2]
;W[do]C[W3]MN[3]
;B[en]C[B4]MN[4]
;W[cp]C[W5]MN[5]
;B[bp]C[B6]MN[6]
;W[cr]C[W7]MN[7]
;B[dq]C[B8]MN[8]
;W[bq]C[W9]MN[9]

;CR[dm][im][ho]
LB[ds:b][gs:a][is:c]
)
