(;AW[cr]AW[dq]AW[dp]AW[co]AW[cn]AW[cm]AW[cl]AB[do]AB[dn]AB[dm]AB[dl]AB[dk]AB[ep]AB[eq]AB[er]AB[dr]AW[eo]AW[fo]AW[fp]AB[fq]AB[gr]AB[hr]AB[ir]AB[jr]AW[gq]AW[hq]AW[iq]AW[jq]AW[kq]AW[lq]AW[fs]C[kill the marked group or 'Tenuki' if the group is alive]MA[dr]MA[er]MA[eq]MA[ep]MA[fq]MA[gr]MA[hr]MA[ir]MA[jr]AW[mr]AW[or]LB[hl:Tenuki]AP[goproblems]
(;W[ds];B[gs]
(;W[es];B[fr];W[cs];B[cq];W[cp];B[bq])
(;W[cs];B[fr];W[es];B[cq];W[cp];B[bq]))
(;W[gs];B[js];W[hs];B[cq];W[cp];B[bq];W[br];B[ar];W[bp];B[ds];W[fr];B[is];W[aq];B[es])
(;W[js];B[gs];W[is];B[kr];W[ks];B[ls];W[lr];B[hs])
(;W[hl]C[]AB[cr]AB[dq]AB[dp]AB[co]AB[cn]AB[cm]AB[cl]AB[fs]AB[eo]AB[fo]AB[fp]AB[gq]AB[hq]AB[iq]AB[jq]AB[kq]AB[lq]AB[mr]AB[or]AW[dk]AW[dl]AW[dm]AW[dn]AW[dr]AW[er]AW[eq]AW[do]AW[ep]AW[fq]AW[gr]AW[hr]AW[ir]AW[jr];B[gs]C[try to live]
(;W[js];B[hs]
(;W[ds];B[fr]
(;W[is];B[cs];W[es];B[gs]
(;W[fr];B[cq])
(;W[cq];B[cp];W[bq];B[fr]))
(;W[cq];B[cp]
(;W[bq];B[cs])
(;W[br];B[bq];W[cs];B[ar]
(;W[cq]C[ko, there is a better variation])
(;W[bs];B[kr]))))
(;W[cq];B[cp];W[bq];B[br]
(;W[ar];B[bp];W[ds];B[aq];W[fr]C[sekiRIGHT])
(;W[ds]C[RIGHT])
(;W[cs];B[ds];W[ar];B[bs])
(;W[bs];B[bp];W[ds];B[aq];W[fr]C[RIGHT]))
(;W[br];B[cq];W[cs];B[ds]
(;W[es];B[bq])
(;W[bs];B[fr];W[es];B[ds]))
(;W[cs];B[cq]
(;W[br];B[ds]
(;W[es];B[bq])
(;W[bs];B[fr];W[es];B[ds]))
(;W[ds];B[fr];W[is];B[bs];W[es];B[gs];W[br];B[fs];W[as];B[bq])))
(;W[cq]C[NOTTHIS];B[cp];W[bq];B[br];W[ar];B[bp];W[js];B[hs];W[ds];B[aq];W[fr]C[sekiRIGHT]))
(;W[fr];B[gs])
(;W[es];B[gs]
(;W[ds];B[fr];W[cs];B[cq];W[cp];B[bq])
(;W[cs];B[fr];W[ds];B[cq];W[cp];B[bq])))