(;GM[1]FF[4]SZ[19]
GN[First threat]
PC[http://senseis.xmp.net/?HeavyKo]AP[GoWiki:2009]
DT[2014-07-11]
C[Diagram from http://senseis.xmp.net/?HeavyKo

First threat]
PL[B]

AB[la][kb][mb][pb][fc][lc][pc][id][ld][pd][le][mf][mg][qg][mj][pj][jo][ko][hp][jp][lp][np][op][qp][fq][gq][hq][iq][lq]
AW[ma][jb][nb][mc][oc][dd][fe][me][ne][if][lf][og][dj][dn][in][jn][kn][on][go][ho][lo][mo][dp][gp][ip][jq][nq]
CR[nq]

;W[mp]C[W4]MN[4]
;B[mq]C[B5]MN[5]
;W[lb]C[W6]MN[6]
;B[ln]C[B7]MN[7]
;W[ka]C[W8]MN[8]
;B[lm]C[B9]MN[9]

;CR[nq]
)
