Problem	15818
Created	2012-02-05
Source	my head
Rating

Difficulty	9 dan
Average Solve Time	180 secs
User Attempts	8 / 119
Solve Ratio Rating	5 dan
	rating history

(;AW[cs]AW[cr]AW[cq]AW[ds]AW[es]AW[ps]AW[os]AW[ns]AW[ms]AW[sr]AW[rr]AW[nr]AW[hr]AW[fr]AW[gq]AB[fs]AB[gr]AB[ir]AB[fq]AB[dq]AB[dr]AB[bs]AB[ar]AB[ss]AB[or]AB[oq]AB[pq]AB[rq]AB[pp]AB[np]AB[ip]AB[cp]AB[co]AB[lo]AB[ro]AB[pn]AB[nn]AB[dn]AB[cn]AB[dm]AB[hm]AB[jm]AB[nm]AB[pm]AB[rl]AB[nl]AB[jl]AB[il]AB[hk]AB[ik]AB[jk]AB[lk]AB[nk]AB[pk]AB[pj]AB[nj]AB[hj]AB[ai]AB[ei]AB[ii]AB[ji]AB[pi]AB[ph]AB[kh]AB[hh]AB[ah]AB[kg]AB[id]AB[ic]AB[gb]AB[ia]AB[ja]AW[dp]AW[eo]TR[dp]AW[qq]AW[nq]AW[lq]AW[jq]AW[op]AW[sp]AW[qo]AW[mo]AW[io]AW[cm]AW[gm]AW[im]AW[on]AW[om]AW[sl]AW[ql]AW[ol]AW[kl]AW[hl]AW[kk]AW[ok]AW[rk]AW[sj]AW[oj]AW[mj]AW[lj]AW[ij]AW[gj]AW[bi]AW[fi]AW[ki]AW[lh]AW[li]AW[oi]AW[gh]AW[bh]AW[gg]AW[hg]AW[jg]AW[if]AB[ha]AW[hb]AW[ib]AW[jb]AW[hc]C[Black to kill the marked stone.]AP[goproblems] (;B[ep];W[do] (;B[fo];W[en] (;B[em];W[fn];B[gn];W[fm] (;B[gl];W[fl];B[fk];W[el] (;B[dl];W[ek];B[ej];W[dk];B[ck];W[dj];B[di];W[cj];B[bj];W[ci];B[bg];W[ch] (;B[dh];W[cg];B[cf];W[dg];B[eg];W[df];B[de];W[ef];B[ff];W[ee];B[ed];W[fe];B[ge];W[fd];B[fc];W[gd];B[hd];W[gc];B[kb];W[jc] (;B[kc];W[jd];B[je];W[kd];B[ld];W[ke] (;B[kf];W[le];B[me];W[lf];B[lg];W[mf];B[nf];W[mg];B[mh];W[ng];B[og];W[nh];B[ni] (;W[oh] (;B[pl];W[oo] (;B[po];W[no];B[mp];W[mn] (;B[mm];W[ln];B[kn];W[lm] (;B[ll];W[mi];B[km];W[mh] (;B[kj];W[mk];B[ml]C[:)RIGHT]) (;B[mk];W[ml])) (;B[km];W[ll])) (;B[ln];W[mm] (;B[ml];W[lm];B[km];W[mi];B[ll];W[mk]) (;B[lm];W[ml];B[mk];W[ll];B[km];W[mi]))) (;B[no];W[po] (;B[qp];W[qn] (;B[rn];W[qm] (;B[qk];W[rm]) (;B[rm];W[qk])) (;B[qm];W[rn];B[rm];W[sn];B[sm];W[so];B[rp];W[sq];B[qr] (;W[mi];B[rs];W[qs]) (;W[rs];B[qs];W[mi]))) (;B[qn];W[qp];B[qr];W[pr]))) (;B[oo];W[pl])) (;W[mi]C[NOTTHIS];B[oh];W[mh];B[kj];W[jj];B[mk];W[kj];B[km]C[for reference onlyRIGHT])) (;B[le];W[kf])) (;B[jd];W[kc];B[lc];W[kd];B[ke];W[ld];B[md];W[le];B[lf];W[me];B[ne];W[mf];B[mg];W[nf];B[of];W[ng];B[nh];W[og];B[pg];W[oh]LB[ni:1]LB[oo:2]LB[pl:3]C[3 liberties :(])) (;B[cg];W[dh];B[eh];W[dg];B[df];W[eg];B[fg];W[ef];B[ee];W[ff])) (;B[ek];W[dl];B[cl];W[dk];B[dj];W[ck];B[bk];W[cj])) (;B[fl];W[hn])) (;B[fm];W[er];B[eq];W[fp])) (;B[fn];W[fp];B[er];W[eq])) (;B[do];W[ep]) (;B[er];W[fo] (;B[ep];W[do];B[gp];W[go]) (;B[do];W[ep])) (;B[fo];W[eq];B[er];W[fr]) (;B[fn];W[eq];B[er];W[fr]))