(;GM[1]FF[4]SZ[19]
GN[Ko-threats in sente]
PC[http://senseis.xmp.net/?CapturingRaceExercise9/Solution]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?CapturingRaceExercise9/Solution

Ko-threats in sente]
PL[W]

AB[jl][fm][gm][hm][im][fn][jn][co][eo][ko][cp][dp][ep][ip][jp][lp][aq][bq][cq][dq][eq][kq][ar][er][lr][mr][as][es][is]
AW[fl][gl][hl][il][bm][em][cn][dn][en][bo][do][fo][go][ho][io][ap][bp][gp][fq][gq][hq][iq][jq][gr][jr][kr][cs][gs][ks]

;W[cr]C[W1]MN[1]
;B[jo]C[B2]MN[2]

;
)
