(;AW[br]AW[bs]AW[cs]AW[cr]AW[cq]AW[dq]AW[eq]AW[er]AW[fq]AW[gr]AW[hr]AB[gq]AB[hq]AB[iq]AB[ir]AB[jr]AB[fp]AB[ep]AB[dp]AB[cp]AB[bp]AB[bq]AW[gp]AW[go]AW[gm]AW[en]AW[dn]AW[dm]AW[dl]AW[ck]AW[bk]AW[ak]AB[co]AB[cn]AB[cm]AB[cl]AB[bl]AB[al]AB[am]AW[an]AW[ao]AW[bn]AW[bm]AW[dk]AB[ds]AB[es]C[Kill if possible. Black has infinite ko threats (double ko), and you have none.]AP[goproblems]
(;W[bo];B[fs]
(;W[hs];B[fr]
(;W[dr];B[is];W[gs];B[es]
(;W[ar];B[fr]
(;W[ds];B[fs];W[gr]C[RIGHT])
(;W[fs];B[fr];W[gr];B[gs];W[fs]C[ko...]))
(;W[ds];B[fs];W[ar];B[fr];W[gr]C[RIGHT])
(;W[fs];B[fr];W[gr];B[fs]))
(;W[ar];B[is]))
(;W[gs];B[ar]LB[fo:A];W[fo];B[is]LB[eo:A];W[eo];B[hs]LB[fr:A];W[fr];B[aq]LB[do:A];W[do];B[ap];W[bn];B[as];W[dr];B[es]C[:(])
(;W[fr];B[hs]C[dead: see for yourself]))
(;W[fs];B[bo]C[not the best])
(;W[ar];B[bo]C[:(])
(;W[hs];B[bo])
(;W[ap];B[aq])
(;W[aq];B[ap])
(;W[fr];B[bo]))
