(;GM[1]FF[4]SZ[19]
GN[Counting ko threats]
PC[http://senseis.xmp.net/?posting=1471]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?posting=1471

Counting ko threats]
PL[B]

AB[gp][hp][ip][jp][kp][lp][mp][np][eq][fq][nq][pq][er][or][es][os]
AW[gq][iq][jq][kq][lq][mq][fr][gr][lr][nr][fs][ms][ns]
CR[gq][fr][gr][fs]
LB[kr:b][hs:a]

;B[hq]C[B1]MN[1]
;W[hr]C[W2]MN[2]
;B[ir]C[B3]MN[3]
;W[is]C[W4]MN[4]
;B[jr]C[B5]MN[5]
;W[js]C[W6]MN[6]

;CR[gq][fr][gr][fs]
LB[kr:b][hs:a]
)
