(;AW[rs]AW[rr]AW[qq]AW[pq]AW[oq]AW[or]AW[pp]AW[qo]AW[pn]AW[pm]AW[qm]AW[sm]AW[rm]AW[ql]AB[qs]AB[qr]AB[pr]AB[ps]AB[os]AB[ns]AB[nr]AB[nq]AB[np]AB[op]AB[oo]AB[po]AB[on]AB[om]AB[ol]AB[pl]AB[pk]AB[qk]AB[rk]AB[rl]AB[sl]AB[rq]TR[rq]C[Black played the marked stone to kill your group. If you can live you still have a comfortable lead on the rest of the board.]LB[rs:1]LB[ps:2]AP[goproblems] (;W[rp] (;B[qp]C[It seems that the other black responses seem to live easier, so this path will be played out.] (;W[ro] (;B[sp]C[NOTTHIS] (;W[so] (;B[rn]C[Black still tries, but...NOTTHIS] (;W[sq] (;B[qq];W[sr]C[RIGHT]) (;B[sr] (;W[qq]C[RIGHT]) (;W[ss];B[sr]C[:o( So close.]))) (;W[sr];B[qq];W[sq]C[:o)RIGHT])) (;B[sq]C[NOTTHIS];W[rn]C[The best sequence for black, white lives with minimal points.RIGHT]))) (;B[rn]C[NOTTHIS] (;W[sq] (;B[qq];W[sr];B[sn];W[qn]C[:o)RIGHT]) (;B[sn];W[qn];B[qq] (;W[sr]C[:o)RIGHT]) (;W[so];B[sr]C[So close...]))) (;W[sp];B[sn];W[qn];B[sq]C[Dead...]) (;W[sn];B[sp]C[:o(]) (;W[so];B[sr]C[:o(]))) (;W[rn];B[sp];W[so];B[ro]C[Ko is not your best option.]) (;W[so];B[rn];W[sq];B[ro] (;W[sp];B[qn]C[:o(]) (;W[sn];B[sp]C[Ko is not your best option...])) (;W[sq];B[ro] (;W[rn] (;B[qn]) (;B[sp]C[:o(])) (;W[qq];B[qn]C[:o(]) (;W[so];B[qn]C[:o(])) (;W[sp];B[ro];W[rn];B[qn]C[Ko is not your best option...]) (;W[qq];B[pq]C[Playing R3 is not good - it turns the correct path into a ko and doesn't help you to live. (I will not add all other wrong variations here.)];W[ro];B[sp];W[so];B[rn];W[sq];B[sr];W[qq]C[Ko for life...]) (;W[pq];B[ro]C[:o(])) (;B[sq] (;W[sp];B[qp];W[rn]C[RIGHT]) (;W[qp];B[sr];W[sp];B[rn];W[ss];B[qn];W[sq]C[RIGHT]))) (;W[qp];B[rp] (;W[ro];B[sr] (;W[so];B[rn]C[:o(]) (;W[rn];B[so]C[:o(])) (;W[sq];B[ro];W[qn]C[Dead in gote...])) (;W[rn];B[rp];W[ro];B[so];W[sq] (;B[sr]C[:o(]) (;B[qp]C[:o(])) (;W[ro];B[rp];W[so];B[rn];W[qp];B[sr]))