(;AB[bs]AB[cs]AB[br]AB[cq]AB[cp]AB[co]AB[do]AB[en]AB[fn]AB[go]AB[ho]AB[hp]AB[hq]AB[ir]AB[is]AB[jq]AB[ep]AW[eo]AW[fo]AW[fp]AW[gp]AW[gq]AW[gr]AW[hr]AW[dp]AW[dr]AW[dq]AW[cr]C[Black to kill]AP[goproblems]
(;B[fr]
(;W[er]C[More thanks to Field Mouse for my (obvious) mistake, any more comments welcome]
(;B[es]C[RIGHT])
(;B[gs]C[RIGHT])
(;B[fs];W[eq]))
(;W[fs]
(;B[er];W[eq];B[ds]C[RIGHT])
(;B[es]C[RIGHT]))
(;W[eq];B[ds]C[RIGHT]))
(;B[es];W[eq];B[fr];W[ds]
(;B[gs];W[hs];B[fq];W[fs]C[Ko...not the best result :(])
(;B[fq];W[gs]C[Seki.]))
(;B[ds];W[er])
(;B[er];W[eq];B[ds];W[fr]))