(;AB[ap]AB[bp]AB[cp]AB[dp]AB[dq]AB[eo]AB[fp]AB[fq]AB[gp]AB[hp]AB[hq]AB[hr]AB[hs]AW[bq]AW[cq]AW[bs]AW[dr]AW[eq]AW[gr]AW[gq]C[Black to kill]AP[goproblems]
(;B[ar];W[aq]
(;B[ds]
(;W[er]C[CHOICE]
(;B[es]
(;W[fr]C[CHOICE]
(;B[gs];W[fs]C[CHOICE];B[cr]C[CHOICERIGHT])
(;B[cr];W[br]
(;B[gs]C[RIGHT])
(;B[fs]C[RIGHT]))
(;B[fs];W[gs];B[cr]C[RIGHT])
(;B[br];W[cr])
(;B[cs];W[cr])
(;B[ep];W[cs]))
(;W[fs];B[br];W[cr];B[fr]C[RIGHT])
(;W[br];B[fs]C[RIGHT]))
(;B[fr];W[es])
(;B[br];W[cr])
(;B[cr];W[br])
(;B[fs];W[es]))
(;W[cr];B[er]C[RIGHT])
(;W[es];B[cr]C[RIGHT])
(;W[cs];B[br];W[cr];B[er]C[RIGHT])
(;W[fr];B[cr]C[RIGHT]))
(;B[br];W[cr])
(;B[er];W[ds])
(;B[cr];W[br])
(;B[cs];W[cr]))
(;B[cr];W[ar]
(;B[er];W[ds])
(;B[ds];W[er]))
(;B[er];W[ar])
(;B[fr];W[ar])
(;B[es];W[ar])
(;B[br];W[ar])
(;B[ds];W[ar]))