(;GM[1]FF[4]CA[UTF-8]AP[CGoban:2] SZ[19]RU[Japanese]KM[5.50]TM[1800] GN[White (W) vs. Black (B)]PB[Black]PW[White]DT[1999-07-28]SY[Cgoban 1.9.2] ;AW[pl][ql][nm][om][qm][rm][lo][mo][no][oo][pp][nq][oq][pq][qq][pr][qr][rr][sr][rs]AB[qh][ri][pm][on][pn][qn][rn][po][qo][kp][lp][mp][np][op][qp][sp][rq][lr][mr][nr][or][ns][os][ps][qs]C[what should white do? assume no outside ko threats exist. ]PL[W] (;W[sn] ;B[so] (;W[sm] ;B[mq] (;W[rp] ;B[ro] (;W[nn]C[RIGHT white gets a seki ]) (;W[sq] ;B[ss])) (;W[sq] ;B[ss]) (;W[nn] ;B[sq] (;W[rp] ;B[ss]) (;W[ro] ;B[ss])) (;W[ro]CR[ro] ;B[rp]CR[rp] ;W[nn]CR[nn]C[RIGHT seki])) (;W[rp] (;B[sm] (;W[sq] ;B[sk]C[black connects out ]) (;W[sl] ;B[ro] ;W[nn] ;B[mq] ;W[sn]C[this isn't great as white has to fix later at T7 ])) (;B[ro] ;W[sm] ;B[mq])) (;W[nn] ;B[sm] ;W[sl] ;B[rp] ;W[sn] ;B[mq]C[not so great for white because a fix is needed at T7 to avoid ko later ])) (;W[sq] ;B[rp] (;W[sn] ;B[mq]) (;W[nn] ;B[mq])) (;W[mq] ;B[lq]) (;W[nn] ;B[mq] (;W[sq] ;B[ss]) (;W[sn] ;B[sq] (;W[ro] ;B[ss]) (;W[so] ;B[ss])) (;W[so] ;B[sn] (;W[sm] ;B[ro]) (;W[ro] ;B[rp] (;W[ro] ;B[sq]) (;W[sm] ;B[sq])) (;W[sq] ;B[ss]))) (;W[so] ;B[sn] (;W[sq] ;B[rp] (;W[nn] ;B[mq]) (;W[sm] ;B[mq])) (;W[ro] ;B[mq] ;W[sm] ;B[rp] ;W[nn] ;B[sq]) (;W[sm] ;B[mq] (;W[sq] ;B[rp]) (;W[ro] ;B[rp])) (;W[nn] ;B[mq] (;W[sm] ;B[ro]) (;W[ro] ;B[rp] ;W[sm] ;B[sq]) (;W[sq] ;B[ss]))) (;W[ro] ;B[sn] (;W[nn] ;B[mq] (;W[rp] ;B[so] ;W[rp]) (;W[so] ;B[rp] (;W[sm] ;B[sq]) (;W[ro] ;B[sq]) (;W[so] ;B[sq])) (;W[sm] ;B[sq])) (;W[sm] ;B[mq] (;W[sq] ;B[ss]) (;W[rp] ;B[so] ;W[nn] ;B[sq]) (;W[nn] ;B[sq]))))