(;AB[cr]AB[dr]AB[cq]AB[bq]AB[dp]AB[ep]AB[fp]AB[gq]AB[gr]AB[go]AB[gn]AB[en]AB[em]AB[jr]AB[jp]AB[jn]AB[jm]AB[lo]AW[br]AW[aq]AW[bp]AW[cp]AW[cn]AW[do]AW[eo]AW[fo]AW[fn]AW[gm]AW[in]AW[io]AW[jo]AW[ko]AW[hr]AW[hq]AW[hp]AW[gp]AW[fr]TR[fr]C[Black to live after white plays marked stone]AP[goproblems]
(;B[fq]
(;W[gs]
(;B[er]
(;W[fs]
(;B[es];W[hs]
(;B[cs]C[RIGHT])
(;B[bs]C[RIGHT])
(;B[ar];W[as];B[cs]C[RIGHT])
(;B[ap]C[RIGHT]))
(;B[cs];W[es]
(;B[bs];W[ar];B[ap];W[ao];B[bo];W[ap])
(;B[ar];W[as];B[bs];W[ap];B[ar]C[RIGHT]))
(;B[bs];W[ar]
(;B[cs]C[];W[es];B[ap];W[ao];B[bo];W[ap])
(;B[ap];W[ao];B[cs]C[];W[es];B[bo];W[ap])
(;B[es];W[cs];B[ds];W[ap]))
(;B[ar];W[as]
(;B[cs];W[es];B[bs]C[RIGHT];W[ap];B[ar]C[RIGHT])
(;B[bs];W[cs])))
(;W[es];B[ds]C[RIGHT]))
(;B[es];W[er]))
(;W[er]
(;B[gs];W[cs]
(;B[ds];W[eq]
(;B[ar];W[dq];B[bs];W[hs]C[Whoopsy.])
(;B[es]C[Seki at leastRIGHT])
(;B[fs];W[hs]C[Ko at best.]))
(;B[es]C[White can get gote seki at bestRIGHT]))
(;B[es];W[gs])))
(;B[eq])
(;B[er];W[fq]
(;B[eq];W[gs]
(;B[cs];W[es];B[ar];W[as];B[bs]C[RIGHT])
(;B[ar]C[];W[as];B[cs];W[es]
(;B[bs]C[RIGHT])
(;B[ap]C[RIGHT])))
(;B[gs];W[hs];B[eq];W[fs];B[cs]
(;W[es];B[ar];W[as];B[bs]C[RIGHT])
(;W[ar];B[es]))
(;B[ar];W[as]
(;B[eq];W[gs];B[cs];W[es]
(;B[bs]C[RIGHT])
(;B[ap]C[RIGHT]))
(;B[cs];W[eq];B[dq];W[gs];B[bs];W[ar];B[ap];W[ar])))
(;B[gs];W[fq];B[er];W[hs];B[eq];W[fs];B[cs]
(;W[es];B[ar];W[as];B[bs]C[RIGHT])
(;W[ar];B[es]))
(;B[ar];W[er]
(;B[fq];W[gs]
(;B[dq];W[as])
(;B[bs];W[dq]))
(;B[bs];W[fq]C[You lose 5 stones or 2 and sente.]))
(;B[bs];W[er]
(;B[gs];W[fq]
(;B[es];W[hs]C[Losing too much.])
(;B[dq];W[ar]))
(;B[ar];W[fq]C[You lose 5 stones or 2 and sente.]))
(;B[cs];W[er];B[ar];W[as];B[bs];W[ar];B[ap];W[ar]
(;B[gs];W[fq])
(;B[fq];W[gs])))