(;AB[bq]AB[br]AW[ap]AW[bp]AW[cp]AW[cq]AW[cr]AW[dr]AW[er]AW[es]AB[fs]AB[fr]AB[fq]AB[eq]AB[dq]AB[dp]AB[do]AB[co]AB[bo]AB[ao]C[Black to play.]AP[goproblems]
(;B[bs]
(;W[aq]
(;B[ar]C[White dies.RIGHT])
(;B[cs];W[ar]C[Seki.
])
(;B[ds];W[cs]C[White lives.])
(;B[as];W[cs]C[White lives.]))
(;W[cs];B[aq]C[White dies.RIGHT])
(;W[ar];B[aq]C[White dies.RIGHT]))
(;B[cs];W[bs]
(;B[as];W[aq]C[Seki.])
(;B[ar];W[ds]C[Seki.])
(;B[aq];W[ar]C[White lives.]))
(;B[ar];W[bs]
(;B[cs];W[ds]C[Seki.])
(;B[as];W[aq]C[White lives.]))
(;B[aq];W[bs]C[White lives.])
(;B[as];W[aq]
(;B[cs]C[Seki.])
(;B[bs];W[cs]C[White lives.])
(;B[ds];W[cs]C[White lives.]))
(;B[ds];W[bs]C[White lives.
]))