(
;
FF[4]
GM[1]
SZ[19]
AP[Jago:Version 5.00]
AB[ao][bo][co][cp][cq][cr][cs]
AW[an][bn][cn][dn][do][dp][dq][dr][ds]
C[What is the best play for white? (Black will always avoid ko)]
GN[goproblem_x02]
(
;
W[bq]
;
B[ar]
(
;
W[br]
;
B[aq]
(
;
W[bs]
;
B[ap]
C[RIGHT
Seki in sente]
)
(
;
W[bp]
;
B[bs]
)
(
;
W[as]
;
B[bs]
)
(
;
W[ap]
;
B[bp]
)
)
(
;
W[aq]
;
B[br]
)
(
;
W[bp]
;
B[br]
)
(
;
W[ap]
;
B[br]
)
(
;
W[bs]
;
B[br]
)
(
;
W[as]
;
B[br]
)
)
(
;
W[ar]
;
B[bq]
(
;
W[aq]
;
B[ap]
;
W[bs]
C[Seki in gote, but you can do better]
)
(
;
W[br]
;
B[aq]
)
(
;
W[bs]
;
B[aq]
(
;
W[bp]
C[Seki, but with a loss]
)
(
;
W[ap]
C[Seki, but with a loss]
)
)
(
;
W[ap]
;
B[aq]
;
W[bs]
C[Seki, but with a loss]
)
(
;
W[bp]
;
B[ap]
(
;
W[bs]
;
B[br]
)
(
;
W[br]
;
B[bs]
)
(
;
W[aq]
;
B[bs]
)
)
)
(
;
W[aq]
;
B[ar]
(
;
W[br]
;
B[bq]
(
;
W[as]
;
B[ap]
)
(
;
W[ap]
;
B[bs]
)
)
(
;
W[bq]
;
B[br]
)
(
;
W[ap]
;
B[br]
)
(
;
W[as]
;
B[br]
)
)
(
;
W[br]
;
B[bq]
(
;
W[aq]
;
B[ap]
)
(
;
W[ap]
;
B[aq]
)
)
(
;
W[bp]
;
B[bq]
(
;
W[ar]
;
B[bs]
)
(
;
W[aq]
;
B[ar]
)
)
(
;
W[ap]
;
B[ar]
(
;
W[bq]
;
B[br]
)
(
;
W[br]
;
B[bq]
)
(
;
W[aq]
;
B[br]
)
(
;
W[as]
;
B[br]
)
)
(
;
W[as]
;
B[br]
(
;
W[ar]
;
B[aq]
)
(
;
W[aq]
;
B[ar]
)
(
;
W[bq]
;
B[ar]
)
(
;
W[ap]
;
B[ar]
)
)
(
;
W[bs]
;
B[br]
(
;
W[ar]
;
B[aq]
)
(
;
W[aq]
;
B[ar]
)
(
;
W[bq]
;
B[ar]
)
(
;
W[ap]
;
B[ar]
)
)
)