invalid problem set
Problem | 13763 |
Created | 2010-06-05 |
Source | kGS game |
Rating | |
Difficulty | 6 dan |
Average Solve Time | 103 secs |
User Attempts |
55 / 326 |
Solve Ratio Rating | 1 dan |
| rating history |
White just played move "1" to cut black stones.
Black has to connect the marked stones, or make his group alive...
All comments appreciated ;)
(;SZ[19]AW[fa]AW[eb]AW[dc]AW[ec]AW[nc]AW[dd]AW[fd]AW[hd]AW[od]AW[pd]AW[de]AW[bf]AW[cf]AW[qg]AW[ch]AW[kh]AW[fk]AW[ik]AW[lk]AW[nk]AW[qk]AW[ml]AW[pl]AW[gm]AW[km]AW[lm]AW[nm]AW[fn]AW[hn]AW[kn]AW[nn]AW[do]AW[eo]AW[go]AW[ho]AW[no]AW[po]AW[dp]AW[fp]AW[hp]AW[op]AW[dq]AW[eq]AW[iq]AW[jq]AW[mq]AW[nq]AW[er]AW[hr]AW[ir]AW[lr]AW[mr]AW[or]AW[pr]AW[ns]AB[cb]AB[db]AB[fb]AB[hb]AB[nb]AB[ob]AB[cc]AB[fc]AB[ic]AB[kc]AB[oc]AB[qc]AB[cd]AB[qd]AB[be]AB[ce]AB[df]AB[hj]AB[nl]AB[rl]AB[hm]AB[im]AB[mm]AB[pm]AB[qm]AB[cn]AB[dn]AB[in]AB[ln]AB[mn]AB[io]AB[ko]AB[lo]AB[qo]AB[cp]AB[gp]AB[ip]AB[kp]AB[mp]AB[np]AB[cq]AB[fq]AB[gq]AB[hq]AB[kq]AB[lq]AB[oq]AB[pq]AB[qq]AB[cr]AB[dr]AB[kr]AB[qr]MA[hm]MA[hj]MA[im]LB[ik:1]C[Black to play. Please don't play unnecessary moves.]GM[1]FF[4]CA[UTF-8]AP[CGoban:3]ST[2]RU[Japanese]KM[0.00]PW[Blanc]PB[Noir]
(;B[hk];W[hl]
(;B[il];W[gl]
(;B[kj]
(;W[jk]C[CHOICE];B[kk];W[jl];B[kl];W[jm];B[ll];W[jj]
(;B[ji];W[ki]
(;B[lj];W[ii];B[mk]C[RIGHT])
(;B[mk];W[ii]C[RIGHT]))
(;B[mk]C[Nice, one of the marked groups will dieRIGHT]TR[jj]TR[jk]TR[jl]TR[jm]TR[km]TR[lm]TR[kn]TR[ik]TR[nm]TR[nn]TR[no]TR[op]TR[po])
(;B[ki];W[ji];B[mk]C[RIGHT])
(;B[lj];W[ji];B[mk]C[RIGHT])
(;B[ol];W[mk]
(;B[li];W[om]C[Black can live in gote, but it's a very bad result]
(;B[oo];W[jp]
(;B[pp];W[jo])
(;B[jo];W[on]C[Black is dead]))
(;B[ji];W[ki];B[lj];W[ii]
(;B[jn];W[jh];B[jp];W[mo])
(;B[oo];W[jp];B[pp];W[jo])))
(;B[ok];W[oj]
(;B[pk];W[pj];B[ql]C[RIGHT])
(;B[pj];W[om];B[pk];W[pi]
(;B[qj];W[qi]
(;B[rj];W[ni]C[RIGHT])
(;B[ql];W[ni]C[RIGHT]))
(;B[ql];W[qj];B[pl];W[ni]C[RIGHT])))
(;B[om]C[];W[ok]C[RIGHT])
(;B[pk];W[pj]
(;B[ql]C[RIGHT])
(;B[ok];W[oj];B[ql]C[RIGHT]))))
(;W[jj];B[jk];W[ij];B[ji];W[ii];B[ih];W[hi];B[gi];W[hh];B[hg];W[gh];B[fh];W[gg];B[gf];W[fg];B[eg];W[ff];B[fe];W[ef];B[ee]))
(;B[jk];W[ij]
(;B[jj];W[ii]
(;B[ji];W[jh]
(;B[kl];W[ll]
(;B[lj];W[li]
(;B[mj];W[kj])
(;B[kj];W[mj]))
(;B[li];W[ki]))
(;B[lj];W[li]
(;B[mj];W[kj]
(;B[mk])
(;B[kk];W[ki]
(;B[mk];W[ll];B[ol];W[om]
(;B[ok];W[oj]
(;B[nj];W[pk];B[nk];W[ni])
(;B[oo];W[on]
(;B[pp];W[oo];B[nj];W[pk];B[nk];W[ni])
(;B[nj];W[pk])))
(;B[oo];W[on];B[pp];W[oo];B[ok];W[oj];B[nj];W[pk];B[nk];W[ni]))
(;B[ol];W[om]
(;B[ok];W[oj];B[mk];W[ll]
(;B[nj];W[pk];B[nk];W[ni])
(;B[oo];W[on]
(;B[pp];W[oo])
(;B[nj];W[pk])))
(;B[mk];W[ll];B[ok];W[oj]
(;B[nj];W[pk];B[nk];W[ni])
(;B[oo];W[on]
(;B[pp];W[oo])
(;B[nj];W[pk])))
(;B[ll];W[kl]))))
(;B[kl];W[ll];B[mj];W[kj])
(;B[kj];W[mj]))
(;B[li];W[ki])
(;B[ih];W[hi]
(;B[lj];W[li]
(;B[mj];W[kj];B[mk];W[ll];B[ol];W[om];B[ok];W[oj];B[nj];W[pk];B[nk];W[ni])
(;B[kj];W[mj]))
(;B[li];W[ki])
(;B[kl];W[ll];B[lj];W[li]
(;B[mj];W[kj])
(;B[kj];W[mj]))
(;B[ig];W[gi]
(;B[li];W[ki];B[kj];W[lj]
(;B[lh];W[jl])
(;B[kl];W[ll];B[lh];W[jf]
(;B[kf];W[lg]
(;B[kg];W[jg])
(;B[jg];W[kg]))
(;B[lg];W[kf])
(;B[jg];W[kg];B[kf];W[lg])))
(;B[kl];W[ll]
(;B[li];W[ki];B[kj];W[lj];B[lh];W[jf]
(;B[kf];W[lg]
(;B[kg];W[jg])
(;B[jg];W[kg]))
(;B[lg];W[kf])
(;B[jg];W[kg];B[kf];W[lg]))
(;B[lj];W[li]
(;B[mj];W[kj])
(;B[kj];W[mj])))
(;B[lj];W[li]
(;B[mj];W[kj])
(;B[kl];W[ll]
(;B[mj];W[kj])
(;B[kj];W[mj]))))))
(;B[kl];W[ll]
(;B[ki];W[ji]
(;B[lj]
(;W[li])
(;W[mi];B[lh];W[li];B[kj];W[kg];B[mj];W[nj]))
(;B[kj];W[lh];B[mi];W[li];B[lj];W[mj];B[nj];W[mk]))
(;B[ji];W[jh]
(;B[lj];W[li];B[mj];W[kj])
(;B[ih];W[hi]
(;B[ig];W[gi]
(;B[li];W[ki];B[kj];W[lj];B[lh];W[jf]
(;B[kf];W[lg]
(;B[kg];W[jg])
(;B[jg];W[kg]))
(;B[lg];W[kf])
(;B[jg];W[kg];B[kf];W[lg]))
(;B[lj];W[li]
(;B[mj];W[kj])
(;B[kj];W[mj])))
(;B[lj];W[li];B[mj];W[kj])
(;B[li];W[ki];B[kj];W[lj];B[lh];W[gi];B[ig];W[jf]
(;B[kf];W[lg]
(;B[kg];W[jg])
(;B[jg];W[kg]))
(;B[lg];W[kf])
(;B[jg];W[kg];B[kf];W[lg]))))
(;B[li])
(;B[kj];W[li];B[lj];W[mi];B[mj];W[nj])
(;B[lj];W[li];B[mj];W[kj];B[ji];W[jh])
(;B[jh];W[ji];B[kj];W[li]
(;B[lj];W[mi]
(;B[mj];W[nj])
(;B[ki];W[ih]
(;B[mj];W[nj])
(;B[lh];W[jg];B[mj];W[nj])))
(;B[ki];W[ih];B[lh];W[jg];B[lj];W[mi];B[mj];W[nj]))))
(;B[ji];W[ii];B[ih];W[hi]C[]
(;B[gi];W[hh];B[kl];W[ll];B[jh];W[jj];B[kj];W[kk])
(;B[jj];W[jh]
(;B[lj];W[li];B[mj];W[kj];B[mk];W[ll];B[ol];W[om];B[ok];W[oj];B[nj];W[pk];B[nk];W[ni])
(;B[li];W[ki])
(;B[kl];W[ll]
(;B[ig];W[gi]
(;B[li];W[ki];B[kj];W[lj];B[lh];W[jf]
(;B[kf];W[lg]
(;B[kg];W[jg])
(;B[jg];W[kg]))
(;B[lg];W[kf])
(;B[jg];W[kg];B[kf];W[lg]))
(;B[lj];W[li]
(;B[mj];W[kj])
(;B[kj];W[mj])))
(;B[lj];W[li];B[mj];W[kj])
(;B[li];W[ki];B[kj];W[lj];B[lh];W[gi];B[ig]))))
(;B[ii];W[jj];B[kj];W[ji]
(;B[jh];W[ki])
(;B[ki];W[jh];B[kk];W[jl];B[kl];W[ll]
(;B[mj];W[mi];B[jp];W[ol])
(;B[jm];W[li]))
(;B[kk];W[jl]
(;B[kl];W[ll]
(;B[ki];W[jh];B[jm];W[li])
(;B[jm];W[li]))
(;B[ki];W[jh];B[kl];W[ll]
(;B[mj];W[mi];B[jp];W[ol])
(;B[jm];W[li]))))
(;B[kj];W[ii];B[kl];W[ll]
(;B[li];W[kk])
(;B[kk];W[li])))
(;B[jj];W[jk]
(;B[jl];W[kk])
(;B[kk];W[kj];B[kl];W[jl]))
(;B[kk];W[jl]
(;B[jk];W[ij];B[ii];W[jj]
(;B[ki])
(;B[kj];W[ji]
(;B[ki];W[jh];B[kl];W[ll]
(;B[mj];W[mi];B[jp];W[ol])
(;B[jm];W[li]))
(;B[kl];W[ll]
(;B[jm];W[li])
(;B[ki];W[jh];B[jm];W[li]))))
(;B[kl]
(;W[ll]C[NOTTHIS]
(;B[jm];W[ij];B[ii];W[kj];B[jk];W[jj])
(;B[ij];W[jk])
(;B[jk];W[ij]
(;B[ji];W[ii]
(;B[ih];W[hi];B[jm];W[jh]
(;B[lj];W[mj]
(;B[li];W[kj])
(;B[kj];W[mi]))
(;B[ki];W[li]))
(;B[ki];W[jm])
(;B[jm];W[jh];B[ki];W[li]))
(;B[jm];W[ii]
(;B[ki];W[li])
(;B[ji];W[jh]
(;B[lj];W[mj];B[li];W[kj])
(;B[ki];W[li])))
(;B[kj];W[ii];B[jm];W[lj];B[ki];W[li];B[jh];W[ji])
(;B[ii];W[jj];B[kj];W[ji]
(;B[ki];W[jh];B[jm];W[li])
(;B[jm];W[li])))
(;B[kj])
(;B[jj];W[jk];B[kj];W[jm]))
(;W[kj]C[CHOICE];B[jk];W[ij];B[jj];W[ii]
(;B[ji];W[jh]
(;B[ki];W[li];B[lj];W[ll];B[jm];W[mi]C[CHOICE])
(;B[jm];W[ki]))
(;B[ki];W[jm]))))
(;B[ij];W[jk])
(;B[kl];W[kk]
(;B[jk];W[ij]
(;B[jj];W[ii]
(;B[ji];W[jh]
(;B[ih];W[hi];B[lj];W[li];B[mj];W[kj];B[ki];W[lh];B[mk];W[ll];B[ol];W[om]
(;B[ok];W[oj];B[nj];W[pk];B[nk];W[ni])
(;B[oo];W[on];B[pp];W[oo];B[mo];W[ok];B[jn];W[jp])
(;B[jn];W[ok]))
(;B[lj];W[li];B[mj];W[kj];B[jl];W[ll];B[ki];W[lh]))
(;B[ki];W[ji];B[kj];W[lh]
(;B[mj];W[lj];B[li];W[mi];B[jl];W[ll])
(;B[mi];W[li];B[lj];W[mj];B[jl];W[ll]))
(;B[kj];W[li];B[jh];W[ji]
(;B[ki];W[ih];B[lh];W[jg];B[lj];W[mi];B[mj];W[nj])
(;B[lj];W[mi];B[mj];W[nj];B[ki];W[ih])))
(;B[jl];W[ll];B[jj];W[ii];B[ji];W[jh]))
(;B[jl];W[ll];B[jk];W[ij];B[jj];W[ii];B[ji];W[jh]))
(;B[jl];W[jj]
(;B[jk];W[ij];B[kj];W[ki]
(;B[lj];W[kk])
(;B[kk];W[lj]))
(;B[kj];W[ji];B[kk];W[mi];B[ki];W[jh];B[mj];W[nj])
(;B[ji];W[kj])
(;B[ij];W[jk])))
(;B[gl];W[il]))
(;B[hl];W[hk];B[gl];W[fl];B[gk];W[gj]
(;B[fj];W[gi]
(;B[jk];W[ij];B[jj];W[ii];B[jl];W[li])
(;B[ij];W[jk];B[fi];W[gh])
(;B[jl];W[ij];B[kl];W[ll]))
(;B[ij];W[jk]
(;B[fj];W[gi];B[fi];W[gh])
(;B[gi];W[fj]))
(;B[jk];W[ij]
(;B[hi];W[jj])
(;B[jj];W[hi]
(;B[jl];W[ji];B[kj];W[lj];B[ki];W[li];B[jh];W[ii];B[lh];W[kg])
(;B[ji];W[jl];B[il];W[jp])))
(;B[jj];W[jk]))
(;B[ol]C[];W[om]C[unnecessary move.];B[oo];W[on];B[pp];W[oo];B[mo];W[ok]C[you got a sente eye but you can't make another one.];B[hk];W[jp];B[jo];W[hl];B[il];W[gl];B[kj];W[jk];B[kk];W[jl];B[kl];W[jm];B[ll];W[jj];B[ji];W[ki];B[lj];W[ii];B[mk];W[nl]C[Black is dead])
(;B[jl];W[hk]
(;B[jk];W[jj];B[kj];W[kk])
(;B[kl];W[ll];B[kj];W[kk];B[jk];W[jj];B[ij];W[ji];B[gk];W[gl];B[gj];W[hl]))
(;B[jk];W[hk]
(;B[jl];W[jj];B[kj];W[kk])
(;B[ij];W[jj]
(;B[kj];W[ji];B[kk];W[jl];B[kl];W[ll];B[il];W[gk]
(;B[jm];W[li])
(;B[ki];W[li];B[jm];W[lj];B[jl];W[jh])
(;B[lj];W[mj]
(;B[li];W[jm])
(;B[jm];W[li]))
(;B[li];W[jm]))
(;B[jl];W[kj])
(;B[kk];W[kj]))
(;B[jj];W[jl]))
(;B[il];W[hk];B[jl];W[jj])
(;B[ij];W[jk]
(;B[hk];W[hl]
(;B[gl];W[il])
(;B[il];W[gl]))
(;B[hl];W[hk];B[gl];W[fl];B[gk];W[gj]
(;B[fj];W[gi];B[fi];W[gh])
(;B[gi];W[fj])))
(;B[ls];W[ps]C[unnecessary move])
(;B[pp]C[];W[oo]C[unnecessary move.])
(;B[gl];W[hl];B[jk];W[ij]
(;B[jj])
(;B[il];W[hk];B[kl];W[ll];B[jj];W[ii];B[ji];W[jh]
(;B[lj];W[li]
(;B[mj];W[kj])
(;B[kj];W[mj]))
(;B[li];W[ki]))
(;B[kl];W[ll];B[jj]
(;W[ii];B[lj];W[li])
(;W[il];B[jl];W[ii];B[ji];W[jh]))
(;B[jl];W[jj];B[kj];W[ki];B[lj];W[mj]
(;B[kk];W[mi])
(;B[li];W[kk]))
(;B[kk];W[il])))
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