(;GM[1]FF[4]SZ[19]
GN[This is double ko to kill]
PC[http://senseis.xmp.net/?LeatherScrollProblem62/Attempts]AP[GoWiki:2009]
DT[2011-01-12]
C[Diagram from http://senseis.xmp.net/?LeatherScrollProblem62/Attempts

This is double ko to kill]
PL[B]

AB[nb][qb][oc][pc][rc][pd][qd][qe][re][rf]
AW[qa][mb][ob][pb][rb][nc][md][od][oe][pe][qf][pg][rg]

;B[sd]C[B6]MN[6]
;W[sf]C[W7]MN[7]
;B[ra]C[B8]MN[8]
;W[sa]C[W9]MN[9]
;B[sb]C[B10]MN[10]
;W[qc]C[W11]MN[11]

;
)
