(;AB[cp]AB[dp]AB[ep]AB[fp]AB[fq]AB[fr]AB[fs]AB[cn]AB[bo]AW[bq]AW[cr]AW[eq]AW[er]AW[es]C[Black to kill]AP[goproblems]
(;B[bs]
(;W[cs]
(;B[dr];W[dq]
(;B[cq]C[]
(;W[ds];B[br]C[CHOICERIGHT])
(;W[br];B[ds]C[RIGHT]))
(;B[br];W[cq]))
(;B[br];W[cq])
(;B[dq];W[dr])
(;B[ar];W[aq];B[dr];W[dq];B[cq];W[br])
(;B[cq];W[dr]))
(;W[br];B[dq];W[dr];B[cs]
(;W[as];B[aq]C[RIGHT])
(;W[aq];B[as]C[classical bent4RIGHT])))
(;B[ar];W[aq]
(;B[dr];W[dq];B[cq];W[ds])
(;B[cq];W[dr])
(;B[br];W[cq])
(;B[bs];W[cs]))
(;B[dr];W[dq]
(;B[cq];W[ds]
(;B[bs];W[br])
(;B[br];W[bs]))
(;B[bs];W[cq])
(;B[br];W[bs]))
(;B[cq];W[dr]
(;B[aq];W[ar]
(;B[bs];W[cs])
(;B[ap];W[bs])
(;B[cs];W[bs]))
(;B[bs];W[cs])
(;B[cs];W[bs])
(;B[ar];W[aq])
(;B[br];W[bs]))
(;B[br];W[bs]
(;B[dr];W[dq])
(;B[cq];W[dr])
(;B[ar];W[cq]))
(;B[cs];W[bs])
(;B[dq];W[dr])
(;B[ap];W[bs])
(;B[aq];W[ar];B[bs];W[cs]))