(;AW[bs]AW[cr]AW[dr]AW[bq]AW[bp]AB[bo]AB[cn]AB[cp]AB[cq]AB[eq]AB[fp]AB[er]AB[es]C[Black to kill]AP[goproblems]
(;B[ar];W[ds]
(;B[ap]C[RIGHT])
(;B[aq];W[ap])
(;B[br]C[RIGHT]))
(;B[ds];W[ar]
(;B[cs];W[ap])
(;B[ap];W[cs]
(;B[aq];W[ao])
(;B[ao];W[aq])))
(;B[ap];W[ar];B[ds];W[cs]
(;B[aq];W[ao])
(;B[ao];W[aq]))
(;B[dq];W[ar])
(;B[aq];W[ar])
(;B[br];W[ar]LB[ds:A]LB[ap:B]C[Now even if black plays A or B, white can play tenuki and live.]))