(;GM[1]FF[4]SZ[19]
GN[White's ko threat]
PC[http://senseis.xmp.net/?BasicKofightExample]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?BasicKofightExample

White's ko threat]
PL[W]

AB[ao][bo][bp][cp][dp][ep][eq][gq][lq][mq][dr][er][ir][jr][kr][lr][nr][es][is][ks][ms]
AW[lo][mo][no][ap][fp][hp][jp][kp][np][aq][bq][cq][dq][fq][iq][nq][cr][hr][or][cs][ds][hs][ns][os]
LB[mr:a]

;W[as]C[W1]MN[1]
;B[br]C[B2]MN[2]

;LB[mr:a]
)
