(;GM[1]
FF[4]
AP[Hibiscus:2.1]
SZ[19]
ST[3]
;PL[B]
AB[ka][kb][kc][lc][ld][md][na][nb][nc][nd][ob][pc][pd][pe][qe][rc][rd][re][sc]
AW[ja][jb][jc][jd][kd][le][mb][mf][oc][od][oe][of][pb][pf][qb][qf][rf][sd][se][sf]
(;B[sb]
MN[1]
(;W[qc]
;B[ra]
;W[qa]
(;B[rb]
C[RIGHT
Even though white A does give a ko,
white can't expect to win it as it is a 9
step ko.]
LB[rb:5][oa:A])(;B[qd]
LB[qd:5][oa:A]C[RIGHT
Even though white A does give a ko,
white can't expect to win it as it is a 9
step ko.]
))(;W[ra]
;B[qc]
;W[rb]
;B[pa]
))(;B[ra]
;W[rb]
;B[sb]
;W[qa]
(;B[qc]
;W[sa]
C[ko]
)(;B[pa]
;W[sa]
C[ko]
))(;B[rb]
;W[ra]
(;B[sb]
;W[qc]
;B[pa]
;W[qa]
C[Black is dead.]
)(;B[qc]
;W[sb]
C[ko]
))(;B[qc]
;W[sb]
;B[rb]
;W[ra]
C[ko]
)(;B[pa]
;W[ra]
(;B[qc]
;W[sb]
)(;B[rb]
;W[qc]
(;B[sb]
;W[qa]
C[Black is dead.]
)(;B[sa]
C[ko]
))(;B[sb]
;W[qc]
;B[rb]
;W[qa]
C[Black is dead]
)))