(;AB[ap]AB[bp]AB[dp]AB[ep]AB[cq]AB[dr]AB[cr]AB[br]AB[hq]AB[iq]AB[io]AW[bn]AW[bo]AW[co]AW[do]AW[eo]AW[fo]AW[go]AW[gp]AW[gq]AW[eq]AW[dq]AW[er]AW[cs]AW[ds]C[Black to live]AW[aq]AP[goproblems]
(;B[fs]
(;W[fr]C[CHOICE]
(;B[bs];W[ar]
(;B[gr]C[]
(;W[hr]C[CHOICE]
(;B[es];W[gs];B[ds]C[RIGHT])
(;B[gs];W[hs])
(;B[hs];W[gs]C[hopeless ko]))
(;W[fq];B[es]C[];W[ds]C[];B[cs];W[hr];B[gs];W[hs];B[ds];W[cp];B[ir];W[ao];B[is];W[bq]C[RIGHT])
(;W[cp];B[es];W[fp]C[RIGHT]))
(;B[es];W[ds])
(;B[hs];W[es])
(;B[gs];W[es])
(;B[hr];W[es]))
(;B[gr];W[bs])
(;B[gs];W[es])
(;B[hr];W[es])
(;B[hs];W[es])
(;B[ar];W[bs])
(;B[es];W[gs]))
(;W[es];B[bs];W[ar];B[fq]C[RIGHT])
(;W[gr];B[ar];W[bs];B[es]C[RIGHT])
(;W[gs];B[bs];W[ar];B[gr]
(;W[fq];B[es]C[RIGHT])
(;W[es];B[fq]C[RIGHT]))
(;W[bs];B[es]C[RIGHT])
(;W[ar];B[fq]
(;W[fr];B[gr];W[fp];B[bs]
(;W[cp];B[es]C[RIGHT])
(;W[hr];B[es];W[gs];B[ds]C[RIGHT]))
(;W[fp];B[bs]
(;W[fr];B[gr])
(;W[gr];B[es];W[fr];B[ds]C[RIGHT])))
(;W[fp];B[ar];W[bs];B[es]C[RIGHT])
(;W[fq];B[bs];W[ar];B[es];W[ds];B[hs]C[RIGHT]))
(;B[ar];W[bs])
(;B[bs];W[ar]
(;B[es];W[ds]
(;B[fq];W[fr]
(;B[gr];W[fs])
(;B[fs];W[gs]))
(;B[fr];W[fq])
(;B[fs];W[gr]))
(;B[fs];W[gr])
(;B[gr];W[es]
(;B[fq];W[fp])
(;B[fs];W[fq])
(;B[cp];W[fq]))
(;B[fq];W[fr]
(;B[es];W[ds])
(;B[gr];W[fs])
(;B[fs];W[gs])))
(;B[fq];W[fr]
(;B[ar];W[bs])
(;B[bs];W[ar])
(;B[gr];W[bs]))
(;B[fr];W[fq];B[bs];W[ar];B[es];W[ds])
(;B[gr];W[bs]
(;B[fs];W[es];B[fq];W[cp])
(;B[fq];W[fr]))
(;B[cp];W[bs]))