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