(;C[Black has answered white 1 with 2. What should white do?]AW[dl]AW[el]AW[gl]AW[dm]AW[fm]AW[gm]AW[dn]AW[gn]AW[co]AW[eo]AW[go]AW[ho]AW[io]AW[cp]AW[hp]AW[cq]AW[dq]AW[hq]AW[iq]AW[er]AW[ir]AW[is]AB[fk]AB[gk]AB[fl]AB[hl]AB[jl]AB[em]AB[im]AB[en]AB[fn]AB[in]AB[kn]AB[do]AB[fo]AB[jo]AB[dp]AB[fp]AB[ip]AB[jp]AB[eq]AB[gq]AB[jq]AB[gr]AB[hr]AB[jr]AB[js]LB[eo:1]LB[fn:2]PL[W]
(;W[fr];B[hn]
(;W[gs];B[hs]
(;W[fq];B[fs];W[ep]C[.RIGHT])
(;W[ep];B[hm])
(;W[gp];B[hm])
(;W[fs];B[hm]))
(;W[fq];B[hm]
(;W[ep];B[gp])
(;W[gs];B[gp]))
(;W[ep];B[gp]))
(;W[ep];B[gp]
(;W[fq];B[hn]C[White looses.])
(;W[fr];B[hn]C[White looses.])
(;W[gs];B[hn]C[White is lost.])
(;W[hs];B[gs]C[White is lost.]))
(;W[gp];B[hn]C[White looses.])
(;W[fq];B[fr]C[]
(;W[ep];B[hn]
(;W[fs];B[gp]
(;W[gs];B[hm])
(;W[fq];B[hm]))
(;W[hs];B[hm]))
(;W[fs];B[hn]
(;W[gs];B[hs])
(;W[ep];B[hm])))
(;W[gs];B[fr]
(;W[ep];B[dr]
(;W[gp];B[fq]
(;W[fs];B[es];W[hs];B[er];W[cr]C[RIGHT])
(;W[hs];B[es];W[fs];B[er];W[cr]C[RIGHT]))
(;W[es];B[ds];W[fq]C[Ko.]))
(;W[fs];B[hs]
(;W[ep];B[es]
(;W[fq];B[gp]C[Only ko.])
(;W[gp];B[fq]))
(;W[ds];B[ep]C[Black wins])
(;W[gp];B[es];W[ep];B[fq])
(;W[es];B[dr];W[ep];B[ds]))
(;W[gp];B[dr]
(;W[es];B[fs]
(;W[hs];B[ds];W[ep];B[fq])
(;W[ep];B[ds]
(;W[hs];B[fq])
(;W[fq]))
(;W[cr];B[ds];W[ep];B[fq]))
(;W[fs];B[es]
(;W[hs];B[ep])
(;W[ep];B[hs];W[fq];B[fp]C[Black lives with a part of his group. This was not necessary.]))
(;W[hs];B[es]
(;W[ep];B[fq]
(;W[fs];B[er];W[cr]C[RIGHT])
(;W[cs];B[hn]))
(;W[fs];B[ep])
(;W[cr];B[ep]))
(;W[ep];B[es]
(;W[fq]C[RIGHT])
(;W[hs];B[fq]
(;W[fs]C[RIGHT];B[er];W[cr]C[RIGHT])
(;W[cs];B[hn])))))
(;W[hs];B[gs]C[Black wins the semai.]))