invalid problem set
Problem | 14003 |
Created | 2010-10-04 |
Source | KGS game |
Rating | |
Difficulty | 8 dan |
Average Solve Time | 66 secs |
User Attempts |
27 / 214 |
Solve Ratio Rating | 2 dan |
| rating history |
White wants to reduce black territory on the bottom.
Try to find the best move !
All comments appreciated ;)
(;AB[ol]AB[pl]AB[ql]AB[om]AB[nm]AB[mm]AB[ll]AB[kl]AB[km]AB[im]AB[il]AB[dm]AB[dn]AB[em]AW[en]AB[eo]AB[fo]AB[gn]AB[hn]AB[fq]AB[gr]AB[er]AW[eq]AW[dr]AW[dp]AW[do]AW[cn]AW[cm]AW[hr]AW[hq]AW[ho]AW[io]AW[in]AW[kn]AW[ln]AW[mn]AW[nn]AW[on]AW[po]AW[qn]AW[pm]AW[rm]AB[nq]AB[pq]AB[qp]AB[qo]AB[kq]AW[qm]AW[rl]AP[goproblems]
(;W[mq]
(;B[mr]C[N3 is a good move but black try to resist.CHOICE]
(;W[nr]
(;B[mp]C[CHOICE]
(;W[oq];B[np]C[CHOICE]
(;W[op];B[or];W[pr];B[ns]
(;W[qr];B[rr]C[CHOICE]
(;W[rq];B[qq]
(;W[rs];B[sr]
(;W[sq];B[ps];W[ss];B[rr]
(;W[sr];B[os]
(;W[ro];B[qs]
(;W[rp];B[rr]C[nice sente invasion !RIGHT])
(;W[rr];B[rp]))
(;W[qs];B[rp]))
(;W[ro];B[qs];W[rp];B[sr]C[not optimal]))
(;W[ps];B[rp]))
(;W[sr];B[rs]C[this is the wrong direction. See correct path]))
(;W[qq];B[pp]
(;W[rq];B[oo]
(;W[pn];B[ro])
(;W[ro];B[pn]))
(;W[ro];B[oo]
(;W[pn];B[rp])
(;W[rp];B[pn]))
(;W[oo];B[rq]))
(;W[rs];B[rq])
(;W[ro];B[qq]))
(;W[qq];B[pp]
(;W[ro];B[rp];W[sp];B[oo];W[pn];B[sq];W[so];B[rq])
(;W[rr];B[oo];W[pn];B[rq])
(;W[oo];B[rq]))
(;W[pp];B[qq]
(;W[ro];B[rr])
(;W[qr];B[rr];W[ro];B[sq])))
(;W[pr];B[op]
(;W[qq];B[pp];W[rq];B[rp]
(;W[rr];B[or]
(;W[qs]TR[sn]TR[gp]C[RIGHT])
(;W[ps];B[os]
(;W[rs]TR[sn]TR[gp]C[RIGHT])
(;W[qs]TR[sn]TR[gp]C[RIGHT]))
(;W[os];B[ns];W[ps];B[rs]))
(;W[qs];B[or]
(;W[rr]TR[gp]TR[sn]C[RIGHT])
(;W[sr];B[rs]
(;W[rr];B[os];W[ss];B[ps])
(;W[os];B[ns])))
(;W[rs];B[or]
(;W[sr]TR[gp]TR[sn]C[RIGHT])
(;W[ps]TR[sn]TR[gp]C[RIGHT]))
(;W[sq];B[or];W[ps];B[rs];W[rr];B[os];W[ss];B[sr]C[ko])
(;W[or];B[rr];W[qr];B[sq]
(;W[lq];B[lr];W[lp];B[kp];W[lo];B[ns]C[white loses the fight]
(;W[sr];B[ss];W[qs];B[os];W[kr];B[jr];W[ks];B[js];W[jq];B[ls]
(;W[kr];B[hs])
(;W[hs];B[kr]))
(;W[kr];B[jr]))
(;W[lr];B[lq];W[ms]
(;B[mq];W[jr];B[kr];W[ks];B[ls]C[ko])
(;B[kr];W[mq];B[os]))
(;W[sr];B[ss];W[qs];B[sp];W[lr];B[lq];W[ms];B[kr];W[mq];B[os];W[lp];B[mr]C[white can t win this]))
(;W[sr];B[or]
(;W[rs]TR[sn]TR[gp]C[RIGHT])
(;W[qs];B[rs];W[rr];B[os];W[ss];B[ps]))
(;W[sp];B[so]
(;W[sq];B[rs]
(;W[rr];B[qs]
(;W[qr];B[or])
(;W[ps];B[or];W[ss];B[sr]C[ko]))
(;W[qs];B[sr];W[qr];B[or])
(;W[qr];B[or])
(;W[or];B[qr]))
(;W[rr];B[rs]
(;W[qs];B[sr];W[ss]C[ko])
(;W[sq];B[qs]
(;W[qr];B[or])
(;W[ps];B[or];W[ss];B[sr]C[ko])))))
(;W[or];B[qr];W[pp];B[qq];W[lq];B[lr];W[lp];B[kp];W[lo];B[ps])
(;W[qr];B[rq]
(;W[qq];B[pp];W[rr];B[sp];W[sr];B[or])
(;W[rr];B[pp]TR[or]TR[sr]C[P2 and T2 miai]))
(;W[rq];B[qq];W[qr];B[rp]
(;W[sq];B[or];W[rs];B[ps];W[sr]TR[gp]TR[sn]C[RIGHT])
(;W[or];B[rr]C[white will die])
(;W[rr];B[or];W[sq];B[ss])
(;W[sr];B[rs])
(;W[rs]
(;B[sr];W[sq])
(;B[sq];W[sr];B[rr]C[ko])))
(;W[pp];B[qq]))
(;W[or];B[op]
(;W[pp];B[qq];W[lq];B[lr];W[lp];B[kp];W[lo];B[pr])
(;W[pr];B[qr];W[pp];B[qq];W[lq];B[lr];W[lp];B[kp];W[lo];B[ps])))
(;W[lq]C[unnecessary move]))
(;B[or]C[];W[lr];B[ns];W[lq]C[RIGHT])
(;B[lr]C[];W[oq];B[or];W[np];B[ns];W[pr];B[nq];W[qq]C[RIGHT]))
(;W[lr];B[lq];W[mp];B[nr])
(;W[lq];B[lr]C[bad shape])
(;W[mp];B[lr])
(;W[np];B[oq]))
(;B[mp];W[lq];B[lp];W[nr]
(;B[oq];W[kr]
(;B[pp];W[or];B[pr];W[kp]C[RIGHT])
(;B[or];W[np];B[lr];W[mr];B[jr];W[ls];B[jp];W[js];B[is];W[ks];B[ir];W[hs];B[jq];W[kp];B[ko];W[jo];B[ns];W[mo];B[op];W[no];B[os];W[lo];B[kp];W[ip]C[RIGHT]))
(;B[or];W[np];B[oq];W[kr]C[RIGHT];B[lr];W[mr];B[jr];W[ls];B[jp];W[js];B[is];W[ks];B[ir];W[hs];B[jq];W[kp];B[ko];W[jo];B[ns];W[mo];B[op];W[no];B[os];W[lo];B[kp];W[ip]C[RIGHT])))
(;W[ro];B[rp])
(;W[jr];B[kr])
(;W[lq];B[lr];W[kr];B[mq]
(;W[lp];B[jr])
(;W[jq];B[lp]))
(;W[lr];B[kr]
(;W[mq];B[mp];W[nr];B[np]
(;W[lq];B[lp]
(;W[ks];B[js]
(;W[ls];B[ms];W[mr];B[or];W[ns];B[os])
(;W[ms];B[ls]))
(;W[ms];B[or];W[ks]
(;B[js])
(;B[jr];W[kp];B[jp];W[ko];B[js];W[ir];B[ls]C[ko])))
(;W[or];B[pr];W[lq];B[lp];W[ms];B[os];W[kp];B[ks];W[ls];B[ps])
(;W[ks]
(;B[lq];W[ls];B[mr];W[is];B[ms];W[js])
(;B[js];W[ms];B[jr])))
(;W[lq];B[lp];W[mp];B[mq];W[kp];B[ls]
(;W[lo];B[mr])
(;W[mr];B[nr];W[lo];B[ms]))
(;W[mp]
(;B[lq];W[mq];B[mr];W[nr];B[ls];W[oq])
(;B[mq]C[CHOICE];W[lq];B[lp];W[mr];B[nr];W[kp];B[ms];W[lo];B[ls])
(;B[mr]C[CHOICE];W[mq];B[nr];W[lq];B[ls])))
(;W[or];B[oq])
(;W[sp];B[so]
(;W[rq];B[rp]
(;W[qr];B[pr])
(;W[qq];B[pp];W[pr];B[or]
(;W[qs];B[sq];W[sr];B[rs];W[rr];B[os])
(;W[ps];B[rr])))
(;W[ro];B[sq]
(;W[sn];B[rq])
(;W[rp];B[rq];W[sn])))
(;W[mr];B[mq]
(;W[kr];B[jr];W[lq];B[lp];W[lr];B[jp])
(;W[lr];B[kr];W[lq];B[lp];W[kp];B[nr];W[mp];B[ms];W[lo];B[ls]))
(;W[pp];B[qq])
(;W[rq];B[qq];W[ro];B[rp];W[sp];B[rr];W[sq];B[sr];W[so])
(;W[so];B[rp]C[too small])
(;W[ks];B[lr]C[too small])
(;W[kr];B[lr]C[too small])
(;W[oq];B[or]))
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