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Problem | 13066 |
Created | 2009-09-07 |
Source | real game |
Rating | |
Difficulty | 8 dan |
Average Solve Time | 130 secs |
User Attempts |
17 / 225 |
Solve Ratio Rating | 4 dan |
| rating history |
Save the black stones !
(to make this problem easy for me, please don't play L10 or L9 at beginning)
All comments appreciated :)
(THX for catoh, winnetou2 and bass) i hope i managed to fix it
(;AB[jj]AB[ji]AB[kh]AB[lh]AB[ni]AB[nh]AB[mj]AW[mi]AW[li]AW[ki]AW[lk]AW[nj]AW[nk]AW[oj]AW[pj]AW[qj]AW[qk]AW[rk]AW[sk]AW[pl]AW[ol]AW[om]AW[on]AB[no]AB[qn]AB[ql]AB[rl]AB[rj]AB[ri]AB[rh]AB[qh]AB[ph]AB[oh]AB[ng]AB[nf]AB[ne]AB[oe]AB[pe]AB[qe]AW[re]AW[rf]AW[qf]AW[pf]AW[of]AW[rc]AB[sb]AB[rb]AB[qb]AB[ob]AB[pb]AW[nb]AW[nc]AW[oc]AW[pc]AW[qc]AW[md]AW[me]AW[mb]AW[ke]AW[je]AW[ie]AW[jc]AW[ic]AW[hc]AW[gb]AW[gc]AB[hd]AB[he]AB[hf]AB[if]AB[jf]AB[kf]AB[kg]AW[jg]AW[jh]AW[ih]AW[hh]AW[gi]AW[gk]AW[fl]AW[fm]AW[el]AW[dl]AW[dm]AB[em]AB[en]AB[eo]AB[dn]AW[cn]AW[co]AB[cp]AB[dp]AW[ep]AW[fo]AW[fq]AW[gp]AW[ip]AW[jq]AW[kq]AB[kp]AB[lq]AB[lr]AB[ln]AB[mp]AB[mm]AW[jn]AB[bo]AB[bn]AB[bm]AB[cm]AB[cl]AW[bp]AW[bq]AW[cr]AW[dq]AB[fk]AB[ek]AB[dk]AW[ck]AW[cj]AW[bk]AW[bi]AW[bh]AW[bg]AB[cg]AB[ch]AW[dg]AW[ce]AW[be]AW[cd]AW[dd]AW[ed]AW[dc]AW[fe]AW[ff]AB[fg]AB[gg]AB[hg]AB[ig]AB[fi]AB[eh]AB[fa]AB[fb]AB[eb]AB[db]AB[cc]AB[bc]AB[bd]AW[mf]AB[po]AB[pq]AW[qq]AB[qp]AW[rq]AB[oq]AW[pr]AB[or]AW[qs]AB[rm]AB[rr]AW[sr]AB[rs]AW[rp]AB[sp]AW[ro]AB[so]AB[oo]AW[cf]AW[df]TR[ni]TR[nh]TR[ng]TR[nf]TR[ne]TR[oe]TR[pe]TR[qe]TR[oh]TR[ph]TR[qh]TR[rh]TR[ri]TR[rj]TR[lh]TR[kh]TR[kg]TR[kf]TR[jf]TR[if]TR[ig]TR[hg]TR[hf]TR[he]TR[hd]TR[gg]TR[fg]TR[eh]TR[fi]TR[fk]TR[ek]TR[dk]AB[ra]C[Black to play]AW[dh]AW[ee]AB[pn]AP[goproblems]
(;B[hk]AW[jn]
(;W[gj]
(;B[gl];W[hl];B[gm];W[fn]
(;B[hm]C[FORCE]
(;W[ik]C[CHOICE]
(;B[il];W[jk]
(;B[kj]
(;W[lj];B[kk]
(;W[jl]
(;B[kl];W[ij]
(;B[ii];W[hj]
(;B[gh];W[hi];B[jm];W[hl];B[im];W[km];B[ll]C[RIGHT])
(;B[hi];W[gh];B[jm];W[km])
(;B[jm];W[km]
(;B[gh]C[Right. ethanb's variationRIGHT])
(;B[im];W[ll])
(;B[ll];W[im])))
(;B[jm];W[km]
(;B[ii];W[im];B[hj];W[hl]C[ko])
(;B[im];W[ll];B[gh];W[hi])))
(;B[hj];W[ij]
(;B[kl];W[ii])
(;B[ii];W[hi]
(;B[kl];W[hl]
(;B[hk])
(;B[im];W[jm]))
(;B[jm];W[kl])))
(;B[ij];W[hj]
(;B[kl];W[hl]
(;B[im];W[jm];B[gh];W[hi];B[hk]C[ko])
(;B[gh];W[hi]
(;B[im];W[jm];B[hk]C[ko])
(;B[hk]C[ko])))
(;B[gh];W[kl])
(;B[hi];W[kl])))
(;W[ij];B[kl];W[jl]
(;B[jm];W[km]
(;B[ii];W[im];B[hj];W[hl]C[ko])
(;B[im];W[ll];B[gh];W[hi]))
(;B[ii];W[hj]
(;B[gh];W[hi];B[jm];W[hl];B[im];W[km];B[ll]C[RIGHT])
(;B[hi];W[gh];B[jm];W[km])
(;B[jm];W[km]
(;B[gh]C[Right. ethanb's variationRIGHT])
(;B[im];W[ll])
(;B[ll];W[im])))))
(;W[kk]C[NOTTHIS];B[lj];W[mk];B[mh];W[li];B[hj];W[ij];B[ii]))
(;B[hj];W[ij]
(;B[ii];W[hi])
(;B[hi];W[ii])
(;B[gh];W[ii];B[fj];W[hi];B[dj];W[eg]))
(;B[ij];W[hj]
(;B[kk]C[FORCE]
(;W[hl];B[lj]C[black is alive and a white group will dieRIGHT])
(;W[jl];B[lj]C[black is alive and a white group will dieRIGHT]))
(;B[gh];W[kj])
(;B[hi];W[ii])
(;B[kj];W[lj];B[kk];W[jl];B[kl];W[hl]
(;B[im];W[jm];B[gh];W[hi];B[hk]C[ko])
(;B[gh];W[hi]
(;B[im];W[jm];B[hk]C[ko])
(;B[hk]C[ko]))))
(;B[kk];W[ij];B[lj]C[black is alive and a white group will dieRIGHT])
(;B[hi];W[ii]))
(;B[hj];W[ij];B[il];W[jk]
(;B[ii];W[hi])
(;B[hi];W[ii])
(;B[gh];W[ii];B[fj];W[hi];B[dj];W[eg]))
(;B[jk];W[il]
(;B[ij];W[hj];B[gh];W[hi])
(;B[hi];W[gh]
(;B[hj];W[im])
(;B[im];W[jl]
(;B[kk];W[kj]
(;B[kl];W[jm])
(;B[mh];W[lj];B[ll];W[mk];B[jm];W[kl]))
(;B[hj];W[kk])))
(;B[im];W[jl]))
(;B[hi]C[FORCE]
(;W[ii];B[ij];W[hj];B[gh];W[hi];B[fj];W[hk];B[jk];W[il];B[jm]C[RIGHT])
(;W[gh];B[hj];W[ei]
(;B[di];W[ej];B[fj];W[fh];B[ii]C[RIGHT])
(;B[ej];W[di]
(;B[fj]C[RIGHT])
(;B[fh]C[RIGHT])
(;B[ii]C[RIGHT])))
(;W[hj];B[gh];W[ii];B[ij];W[hi];B[fj];W[hk];B[jk];W[il];B[jm]C[RIGHT])))
(;W[il]C[]
(;B[im]
(;W[ik]C[];B[jl];W[ij];B[jk];W[ii];B[hj];W[jm];B[gh];W[hi];B[fj])
(;W[jl]C[NOTTHIS]
(;B[kk];W[kl];B[lj];W[mk];B[kj];W[ij];B[gh])
(;B[hi])))
(;B[hi];W[gh]
(;B[hj];W[im])
(;B[im];W[ik]
(;B[kj];W[lj];B[jl];W[jk]C[NOTTHIS];B[kk];W[ij];B[ii];W[hj];B[kl]C[];W[jm])
(;B[jl]
(;W[ij]
(;B[kk];W[kj])
(;B[kj];W[lj];B[ii];W[hj];B[jk];W[jm]
(;B[fj];W[kl])
(;B[fh];W[kl])
(;B[kl];W[in]))
(;B[jk];W[ii])
(;B[ii];W[jk]
(;B[kk];W[hj])
(;B[kj];W[lj];B[kk];W[hj];B[kl])))
(;W[ii];B[ij];W[hj];B[jk];W[hk])
(;W[jk];B[kj];W[lj];B[kk])
(;W[ei];B[di];W[fh]
(;B[eg];W[ej])
(;B[ej];W[eg])))
(;B[hj];W[ij];B[ii];W[jk];B[kj];W[kk])
(;B[ij];W[jl];B[kk];W[kj];B[kl];W[jm])
(;B[kk];W[kj];B[jl];W[ij];B[ii];W[hj];B[jk];W[jm];B[kl];W[in])
(;B[jm];W[jk])
(;B[kl];W[kk];B[jk];W[jl]
(;B[jm];W[ij];B[ii];W[hj])
(;B[ij];W[jm]))))
(;B[gh];W[hi];B[im];W[jk];B[jl];W[ik];B[kk];W[ij];B[lj])))
(;B[hi];W[gh];B[hm]
(;W[il]C[NOTTHIS]
(;B[im];W[ik]
(;B[kj];W[lj];B[jl];W[jk]C[NOTTHIS];B[kk];W[ij];B[ii];W[hj];B[kl]C[];W[jm])
(;B[jl]
(;W[ij]
(;B[kk];W[kj];B[ii];W[hj];B[jk];W[jm];B[kl];W[in])
(;B[kj];W[lj];B[ii];W[hj];B[jk];W[jm]
(;B[fj];W[kl])
(;B[fh];W[kl])
(;B[kl];W[in]))
(;B[jk];W[ii])
(;B[ii];W[jk]
(;B[kk];W[hj])
(;B[kj];W[lj];B[kk];W[hj];B[kl];W[jm])))
(;W[ii];B[ij];W[hj];B[jk];W[hk])
(;W[jk];B[kj];W[lj];B[kk];W[ij];B[ii];W[hj];B[kl]C[];W[jm])
(;W[ei];B[di];W[fh]
(;B[eg];W[ej])
(;B[ej];W[eg])))
(;B[hj];W[ij];B[ii];W[jk];B[kj];W[kk])
(;B[ij];W[jl];B[kk];W[kj];B[kl];W[jm])
(;B[kk];W[kj];B[jl];W[ij];B[ii];W[hj];B[jk];W[jm];B[kl];W[in])
(;B[jm];W[jk])
(;B[kl];W[kk];B[jk];W[jl]
(;B[jm];W[ij];B[ii];W[hj])
(;B[ij];W[jm])))
(;B[hj];W[im]))
(;W[ei]C[CHOICE]
(;B[di];W[ej];B[fj];W[fh];B[dj];W[eg])
(;B[fh];W[fj])
(;B[fj];W[fh])))
(;B[ik];W[hm]))
(;B[hi];W[gh];B[gl];W[hl];B[gm];W[fn]))
(;W[hj]C[NOTTHIS];B[gh];W[hi];B[gl];W[ik];B[kj];W[lj];B[gj];W[ij];B[il];W[jk];B[jl];W[kk];B[km]))
(;B[hi];W[gh]
(;B[hk];W[gj];B[gl];W[hl];B[gm];W[fn];B[hm]
(;W[il]C[NOTTHIS]
(;B[im];W[ik]
(;B[kj];W[lj];B[jl];W[jk]C[NOTTHIS];B[kk];W[ij];B[ii];W[hj];B[kl]C[];W[jm])
(;B[jl]
(;W[ij]
(;B[kk];W[kj])
(;B[kj];W[lj];B[ii];W[hj];B[jk];W[jm]
(;B[fj];W[kl])
(;B[fh];W[kl])
(;B[kl];W[in]))
(;B[jk];W[ii])
(;B[ii];W[jk]
(;B[kk];W[hj])
(;B[kj];W[lj];B[kk];W[hj];B[kl])))
(;W[ii];B[ij];W[hj];B[jk];W[hk])
(;W[jk];B[kj];W[lj];B[kk])
(;W[ei];B[di];W[fh]
(;B[eg];W[ej])
(;B[ej];W[eg])))
(;B[hj];W[ij];B[ii];W[jk];B[kj];W[kk])
(;B[ij];W[jl];B[kk];W[kj];B[kl];W[jm])
(;B[kk];W[kj];B[jl];W[ij];B[ii];W[hj];B[jk];W[jm];B[kl];W[in])
(;B[jm];W[jk])
(;B[kl];W[kk];B[jk];W[jl]
(;B[jm];W[ij];B[ii];W[hj])
(;B[ij];W[jm])))
(;B[hj];W[im]))
(;W[ei]C[CHOICE]
(;B[di];W[ej];B[fj];W[fh];B[dj];W[eg])
(;B[fh];W[fj])
(;B[fj];W[fh])))
(;B[gj];W[hj]
(;B[fj];W[ii]
(;B[hk];W[ij]
(;B[jk];W[ik];B[gl];W[il])
(;B[gl];W[jk]AB[ch]))
(;B[ij];W[hk];B[gl];W[hl];B[gm];W[fn];B[hm];W[il];B[im];W[jl]
(;B[kk];W[kj]
(;B[jm];W[km])
(;B[kl];W[jk]))
(;B[kl];W[kk]))
(;B[kk]
(;W[lj]C[NOTTHIS];B[hk];W[ik];B[ij];W[jk];B[hi])
(;W[kj]C[CHOICE];B[hk];W[jk])))
(;B[hk];W[fj];B[gl];W[gj];B[ej];W[hl];B[gm];W[fn];B[hm];W[ik]
(;B[im];W[jk])
(;B[jk];W[im])
(;B[il];W[jk])))
(;B[hj];W[gj];B[gl];W[gm];B[hl];W[hk];B[ik];W[il];B[hm];W[hn];B[im];W[jl]))
(;B[hj];W[gj];B[hi];W[gh];B[gl];W[gm];B[hl];W[hk];B[ik];W[il];B[hm];W[hn];B[im];W[jl])
(;B[gl];W[hk]
(;B[hl];W[ik])
(;B[hm];W[gm];B[hl];W[ik])
(;B[il];W[hl];B[gm];W[fn];B[hm];W[ik]))
(;B[gj];W[hj]
(;B[hi];W[ii];B[ij];W[gh];B[fj];W[hk];B[gl];W[hl];B[gm];W[fn];B[hm];W[il];B[im];W[jl]
(;B[kk];W[kj]
(;B[jm];W[km])
(;B[kl];W[jk]))
(;B[kl];W[kk]))
(;B[fj];W[hl])
(;B[gh];W[fj]
(;B[hi];W[ii];B[ij];W[hi];B[hk];W[gj])
(;B[gl];W[hl];B[hi];W[ii];B[ij];W[hi]))
(;B[gl];W[hk])
(;B[hk];W[fj]
(;B[ej];W[gj];B[gl];W[ik];B[hl];W[jk])
(;B[gl];W[gj]
(;B[fn];W[gm]
(;B[hl];W[ej])
(;B[ej];W[hl]))
(;B[ej];W[ik];B[hl];W[jk]))))
(;B[gh];W[hi];B[hk];W[gl];B[gj];W[hj];B[fj];W[ik]
(;B[hl];W[hm];B[dj];W[di])
(;B[dj];W[eg]))
(;B[hl];W[gl])
(;B[jl];W[hl])
(;B[kk])
(;B[gn];W[hl]))
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