(;GM[1]FF[4]SZ[19]
GN[white threatens a ko]
PC[http://senseis.xmp.net/?OD1PJuly29Problem/Attempts]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?OD1PJuly29Problem/Attempts

white threatens a ko]
PL[B]

AB[ap][bp][cp][dp][ep][fq][gq][hq][hr][gs][hs]
AW[aq][bq][dq][eq][cr][fr][gr]
LB[as:a]

;B[bs]C[B1]MN[1]
;W[br]C[W2]MN[2]

;LB[as:a]
)
