(;AB[pr]AB[or]AB[oq]AB[op]AB[oo]AB[pn]AB[qn]AB[rm]AB[ql]AW[qr]AW[pq]AW[pp]AW[qo]AW[rn]AW[ro]SZ[19]C[White shape is alive but black has severe moves that can reduce white territory] (;B[rr] (;W[qs] (;B[rq];W[qq]C[so far so good...] (;B[rs] (;W[rp]C[...];B[po];W[sq];B[ps];W[qp];B[sn]C[... straight 3, white is butchered]) (;W[sr]C[tesuji, now how will u cont'd?CHOICE] (;B[po] (;W[sp]C[CHOICE] (;B[sn];W[sq];B[ps];W[qp];B[sm]C[RIGHT];W[so]C[sekiRIGHT]) (;B[ps];W[qp];B[sn];W[sq];B[sm]C[RIGHT];W[so]C[sekiRIGHT]) (;B[qp];W[rp];B[ps];W[qp];B[sn]C[RIGHT];W[ol]C[CHOICE])) (;W[sq]C[CHOICE] (;B[ps];W[qp] (;B[sn];W[sp]C[The best result for both sides is seki.RIGHT];B[sm];W[so]C[RIGHT]) (;B[sm];W[rp];B[sn];W[ss]) (;B[sp];W[rp];B[ss];W[sq] (;B[sr];W[sq]) (;B[sn];W[so];B[sm];W[sr]))) (;B[sn];W[rp]) (;B[rp];W[sp]) (;B[qp];W[rp]) (;B[sp];W[rp];B[ss];W[sq]) (;B[so];W[rp]) (;B[ss];W[rp])) (;W[rp];B[ps];W[qp]) (;W[qp];B[sn];W[sp];B[sm];W[so];B[sq])) (;B[rp];W[sp]C[White wins the semeai]) (;B[sn];W[rp] (;B[ps];W[sq]) (;B[po];W[sq]) (;B[so];W[sq]) (;B[sp];W[sq];B[ss];W[sq];B[sr];W[sq]))) (;W[sq]C[T3 variation as proposed by Bass...I dunno wat I'd left out, so if anyone finds anything missing, pls point it out.];B[po] (;W[qp];B[sn];W[so];B[sm];W[sp];B[ps];W[sr]C[Seki]) (;W[sn];B[rp];W[qp];B[ps])) (;W[sp];B[po];W[qp];B[sn]) (;W[so]C[White should not choose to play this as it can let Black to choose between direct Ko or seki];B[po] (;W[sr];B[ps];W[qp];B[sp]) (;W[sq] (;B[ps];W[qp] (;B[sm];W[sr];B[sn];W[sp]) (;B[sr];W[rp]C[Direct Ko])) (;B[sr];W[rp];B[sp]C[Direct Ko...]) (;B[qp];W[rp];B[ps];W[qp]))) (;W[po];B[rp]C[White will lose this semeai]) (;W[qp];B[sn] (;W[sp] (;B[sq];W[rp];B[ps];W[sr];B[po];W[ss]) (;B[ps];W[sq] (;B[po]) (;B[sm];W[so];B[sr]C[RIGHT];W[rp];B[po]C[RIGHT]))) (;W[so];B[sq];W[sr];B[ps];W[rp];B[po]C[RIGHT]))) (;B[rp];W[sr]C[tesuji, now how will u cont'd?] (;B[sq];W[rs] (;B[po];W[qp];B[ss];W[sp];B[so];W[sn]C[white lives by double ko]) (;B[ss];W[so];B[po];W[qp];B[ps];W[sm]C[White lives by double ko.])) (;B[rs];W[so]C[semeai, black lose by 1 move]) (;B[po];W[rs];B[sq];W[qp];B[ss];W[sp];B[so];W[sn]C[White lives by double ko.]) (;B[sn];W[so] (;B[rs];W[sp]C[Black loses the semeai.]) (;B[sq];W[rs];B[ss];W[qp];B[po];W[sm] (;B[sl];W[sp]) (;B[ps];W[sr]C[White lives by double ko]))))) (;B[qq];W[rq];B[ps];W[qp];B[rs];W[qq]) (;B[rp];W[rq];B[sq];W[qq]) (;B[rs];W[rq] (;B[ps];W[qq]) (;B[qq];W[qp];B[ps];W[qq]))) (;W[rq];B[qs];W[qq];B[rs];W[sr];B[po];W[sn];B[sp])) (;B[qs];W[rr];B[rs];W[rq]) (;B[qq];W[rq] (;B[qs];W[rr]C[Black can do much better.]) (;B[rr];W[qs];B[rs];W[qp];B[ps];W[qq]C[Black accomplishes nothing.])) (;B[rq];W[rr];B[qq];W[sq];B[sp];W[sr] (;B[qs];W[rp];B[rs];W[qp]C[Black can do much better.]) (;B[rp];W[qs]C[Black accomplishes nothing.])))