(;AB[bq]AB[ar]AB[cq]AB[dq]AB[eq]AB[bp]AW[br]AW[bs]AW[er]AW[fq]AW[fp]AW[eo]AW[hq]AW[co]AW[cp]AW[bo]C[Black to play and live in the best way.]AP[goproblems]
(;B[ds]
(;W[ap]C[CHOICE];B[fr];W[gr];B[fs]C[Alive.RIGHT])
(;W[fr]C[CHOICE];B[ap]C[Alive.RIGHT]))
(;B[dr];W[fs];B[ap];W[ds]C[Dead.])
(;B[ap];W[ds];B[fr];W[gr]
(;B[dr];W[fs]C[Dead.])
(;B[cs];W[cr];B[dr];W[fs]C[Dead.]))
(;B[cr];W[ap]C[Dead.])
(;B[fr]
(;W[gr]
(;B[ds];W[fs]
(;B[ap]C[];W[dr];B[cr];W[es];B[cs]C[White's better shape after capturing the stone is balanced by the extra yose ko threat at G1 for BlackRIGHT])
(;B[dr];W[ap]))
(;B[ap];W[ds]
(;B[dr];W[fs]C[Dead.])
(;B[cs];W[cr];B[dr];W[fs]C[Dead.]))
(;B[dr];W[fs]
(;B[ap];W[ds])
(;B[ds];W[ap])))
(;W[dr];B[cr];W[gr];B[ds];W[fs];B[ap]C[RIGHT]))
(;B[es];W[fr]
(;B[dr];W[ap]C[Dead.])
(;B[ap];W[dr]C[Dead.]))
(;B[cs];W[ap]C[Dead.]))