(;GM[1]FF[4]SZ[19]
GN[this is the ko]
PC[http://senseis.xmp.net/?KyuExercise75/Discussion]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?KyuExercise75/Discussion

this is the ko]
PL[W]

AB[qm][mn][nn][pn][lo][qo][ro][lp][pp][lq][pq][qq][lr][mr][pr]
AW[oo][po][mp][np][op][qp][mq][oq][rq][nr][or]

;W[qr]C[W1]MN[1]
;B[ps]C[B2]MN[2]
;W[rp]C[W3]MN[3]
;B[rr]C[B4]MN[4]
;W[sr]C[W5]MN[5]
;B[qs]C[B6]MN[6]
;W[rs]C[W7]MN[7]

;
)
