(;AB[br]AB[bq]AB[cp]AB[co]AB[do]AB[eo]AB[fp]AB[gp]AB[ho]AB[hq]AB[iq]AB[ir]AB[is]AW[cr]AW[cq]AW[dq]AW[dp]AW[fq]AW[gq]AW[hr]AW[hs]AW[fr]C[Black to kill]AP[goproblems]
(;B[cs]
(;W[ds]C[CHOICE]
(;B[er]
(;W[eq]C[CHOICE]
(;B[fs];W[gr]C[]
(;B[bs]C[RIGHT])
(;B[es];W[bs]C[seki]))
(;B[es];W[fs])
(;B[gs];W[gr]
(;B[fs];W[bs])
(;B[bs];W[es])))
(;W[es];B[eq]C[RIGHT]))
(;B[gs];W[er]
(;B[gr];W[ep])
(;B[fs];W[gr])
(;B[ep];W[gr]))
(;B[fs];W[er]
(;B[gr];W[ep])
(;B[ep];W[es]))
(;B[es];W[bs]
(;B[er];W[fs])
(;B[fs];W[er]))
(;B[eq];W[er]
(;B[ep];W[bs])
(;B[bs];W[ep])))
(;W[gs];B[es];W[er];B[ds]
(;W[fs];B[ep]C[RIGHT])
(;W[ep];B[dr]C[RIGHT]))
(;W[er];B[ds]
(;W[ep];B[gs];W[gr];B[dr]C[RIGHT])
(;W[gs];B[es]C[RIGHT])))
(;B[er];W[eq]
(;B[fs];W[dr]
(;B[gr];W[es])
(;B[es];W[ds])
(;B[gs];W[es]))
(;B[ds];W[fs])
(;B[gs];W[gr]))
(;B[es];W[fs];B[cs];W[er];B[ds];W[ep])
(;B[ds];W[cs]
(;B[fs];W[er]
(;B[gr];W[es];B[gs];W[ep])
(;B[es];W[gr];B[ep];W[eq]C[seki]))
(;B[eq];W[er])
(;B[er];W[eq];B[fs];W[dr]
(;B[gr];W[es])
(;B[es];W[gs])))
(;B[gs];W[gr]
(;B[er];W[eq])
(;B[cs];W[ds])
(;B[fs];W[es])
(;B[ds];W[cs])
(;B[es];W[fs]
(;B[cs];W[er])
(;B[eq];W[er])
(;B[ds];W[cs])
(;B[er];W[eq]))
(;B[eq];W[er]))
(;B[eq];W[ep]
(;B[gs];W[er])
(;B[er];W[es];B[gs];W[dr]))
(;B[fs];W[er]
(;B[gr];W[es];B[gs];W[ep])
(;B[ds];W[es]
(;B[gs];W[gr]
(;B[cs];W[ep])
(;B[ep];W[cs]))
(;B[cs];W[gs])
(;B[ep];W[gs]))
(;B[gs];W[gr]))
(;B[ep];W[er])
(;B[gr];W[gs];B[es];W[ds]))