(;GM[1]FF[4]SZ[19]
GN[Variation:another ko]
PC[https://senseis.xmp.net/?GokyoSeimyoVolume3Problem17/Solution]AP[GoWiki:2009]
DT[2023-02-14]
C[Diagram from https://senseis.xmp.net/?GokyoSeimyoVolume3Problem17/Solution

Variation:another ko]
PL[W]

AB[ib][jb][pb][qb][rb][kc][lc][nc][oc][ld][nd]
AW[hb][ob][sb][hc][ic][jc][pc][qc][rc][kd][od][ke][me][ne][pe]

;W[la]C[W1]MN[1]
;B[nb]C[B2]MN[2]
;W[kb]C[W3]MN[3]
;B[lb]C[B4]MN[4]
;W[ja]C[W5]MN[5]

;
)
