(;SZ[19]AW[aa]AW[ga]AW[ab]AW[bb]AW[gb]AW[hb]AW[bc]AW[cc]AW[ec]AW[fc]AW[hc]AW[ic]AW[bd]AW[dd]AW[ed]AW[ee]AW[ie]AW[df]AW[ef]AW[kf]AW[dg]AW[eg]AW[hg]AW[ig]AW[jg]AW[eh]AW[hh]AW[ih]AW[kh]AW[ei]AW[fi]AW[gi]AW[hi]AW[ki]AW[bj]AW[cj]AW[fj]AW[kj]AW[dk]AW[ek]AW[kk]AW[fl]AW[jl]AW[ll]AW[rl]AW[bm]AW[cm]AW[dm]AW[fm]AW[jm]AW[lm]AW[mm]AW[rm]AW[bn]AW[ln]AW[pn]AW[qn]AW[ao]AW[ho]AW[io]AW[jo]AW[ko]AW[lo]AW[mo]AW[ap]AW[bp]AW[dp]AW[fp]AW[gp]AW[ip]AW[mp]AW[pp]AW[cq]AW[dq]AW[fq]AW[lq]AW[qq]AW[br]AW[fr]AW[gr]AW[qr]AW[as]AW[bs]AB[ba]AB[da]AB[fa]AB[cb]AB[db]AB[eb]AB[fb]AB[dc]AB[gc]AB[jc]AB[nc]AB[ad]AB[cd]AB[fd]AB[gd]AB[hd]AB[id]AB[qd]AB[be]AB[ce]AB[de]AB[ge]AB[je]AB[af]AB[bf]AB[cf]AB[gf]AB[jf]AB[ag]AB[cg]AB[fg]AB[gg]AB[kg]AB[lg]AB[ah]AB[dh]AB[gh]AB[jh]AB[bi]AB[ci]AB[di]AB[ii]AB[ji]AB[dj]AB[ej]AB[gj]AB[hj]AB[ij]AB[fk]AB[gk]AB[jk]AB[qk]AB[gl]AB[kl]AB[ml]AB[nl]AB[ql]AB[gm]AB[km]AB[nm]AB[qm]AB[cn]AB[dn]AB[en]AB[fn]AB[gn]AB[mn]AB[nn]AB[bo]AB[co]AB[go]AB[no]AB[cp]AB[hp]AB[jp]AB[kp]AB[lp]AB[np]AB[gq]AB[hq]AB[mq]AB[oq]AB[pq]AB[er]AB[hr]AB[jr]AB[lr]LB[ba:1]C[black just took at 1. white needs a good ko threat]GM[1]FF[4]CA[UTF-8]AP[CGoban:2]ST[2]RU[Japanese]KM[0.00]TM[]PW[White]PB[Black]PL[W]
(;W[lf]
(;B[ac]
(;W[mg]TR[jh]TR[ii]TR[ji]TR[gj]TR[hj]TR[ij]TR[fk]TR[gk]TR[jk]TR[gl]TR[gm]TR[cn]TR[dn]TR[en]TR[fn]TR[gn]TR[bo]TR[co]TR[go]TR[cp]C[
the big black group is capturedRIGHT])
(;W[jb];B[mg])
(;W[lh];B[mg])
(;W[mf];B[mh]))
(;B[mg]C[this is possible];W[ca];B[ck];W[ea];B[dl]C[white has a small advantage at this point]))
(;W[kd];B[ac]C[now what?]
(;W[jd];B[ke]
(;W[if];B[le]
(;W[kc];B[jb];W[kb];B[ib])
(;W[jb];B[kc]))
(;W[kc];B[if])
(;W[le];B[lf];W[if];B[kf]
(;W[kc];B[jb])
(;W[jb];B[kc];W[ld];B[lc])))
(;W[ke];B[jd];W[jb];B[kc]))
(;W[jb];B[ac];W[kc];B[jd])
(;W[jq];B[ac]C[too small])
(;W[kq];B[ac]C[too small])
(;W[mr];B[ac]C[too small])
(;W[ca]C[NOTTHIS])
(;W[if];B[ac])
(;W[bh];B[ac])
(;W[iq];B[ac])
(;W[pd];B[ac])
(;W[qc];B[ac])
(;W[jd];B[ac];W[kd];B[ke]
(;W[if];B[le]
(;W[kc];B[jb];W[kb];B[ib])
(;W[jb];B[kc]))
(;W[kc];B[if])
(;W[le];B[lf];W[if];B[kf]
(;W[kc];B[jb])
(;W[jb];B[kc];W[ld];B[lc])))
(;W[nr];B[ac])
(;W[mg];B[ac];W[lf]C[RIGHT]))
adum