Problem | 15489 |
Created | 2011-12-19 |
Source | Teaching game with Li Ang |
Rating | |
Difficulty | 6 dan |
Average Solve Time | 57 secs |
User Attempts |
168 / 529 |
Solve Ratio Rating | 4 kyu |
| rating history |
(;AB[jo]AB[jp]AB[jq]AB[iq]AB[dp]AW[ep]AW[fq]AB[dq]AB[eq]AW[io]AW[hp]AW[jn]AW[ko]AW[kp]AW[lq]AB[kn]AW[jm]AB[pp]AB[np]AB[mo]C[Black to escape without ko. Ladders are good for white.]AP[goproblems]
(;B[lr];W[mr]
(;B[kq]C[RIGHT];W[lp];B[mq];W[kr];B[ls]
(;W[ln]
(;B[nr]C[RIGHT])
(;B[jr]C[RIGHT]))
(;W[ks];B[lo];W[ms];B[lr];W[ls];B[mp];W[lr];B[nr]C[Squeezed.RIGHT]))
(;B[mq]C[RIGHT];W[kr];B[kq];W[lp];B[ls];W[ln]
(;B[nr]C[RIGHT])
(;B[jr]C[RIGHT])
(;B[lo]C[RIGHT])))
(;B[lo];W[kq]
(;B[mq];W[jr];B[ir];W[kr];B[mr];W[hq];B[lr];W[hr];B[lp];W[ip];B[ks];W[is])
(;B[hq];W[gq];B[mq];W[jr];B[ir];W[kr];B[gr];W[fr]
(;B[hs];W[js];B[is];W[fs];B[gs];W[ip])
(;B[js];W[ks]
(;B[is])
(;B[hs];W[fs];B[gs]))))
(;B[kq];W[lp];B[lr];W[mr];B[mq];W[kr];B[ls]
(;W[ln]
(;B[nr]C[RIGHT])
(;B[jr]C[RIGHT]))
(;W[ks];B[lo];W[ms];B[lr];W[ls];B[mp];W[lr];B[nr]C[Squeezed.RIGHT]))
(;B[kr];W[lr];B[kq];W[lp]
(;B[hq];W[gq];B[hr];W[gr];B[lo];W[ks];B[js];W[ls];B[ir];W[hs];B[mq];W[gs];B[is];W[ip])
(;B[gr]
(;W[fr];B[gq];W[gp];B[is];W[gs];B[hr];W[ks];B[js];W[ln])
(;W[hq];B[hr];W[fr];B[is];W[gs];B[ks];W[jr];B[ls];W[nr];B[mr];W[mq];B[ms];W[nq];B[oq];W[ln])))
(;B[mr];W[lr]
(;B[kr];W[ls]
(;B[lo];W[hq];B[hr];W[gr];B[lp];W[kq];B[js];W[mq]
(;B[nq];W[nr];B[or];W[ms];B[os];W[ir];B[ns];W[ip];B[jr];W[hs];B[mp];W[is];B[mr];W[ks])
(;B[nr];W[ir];B[nq];W[ip];B[jr];W[hs];B[ms];W[is];B[mp];W[ks]))
(;B[gr];W[fr];B[gq];W[gp];B[lo];W[mq];B[nr];W[gs];B[hr];W[kq]
(;B[jr];W[is];B[nq]
(;W[hq];B[ms];W[ks];B[mp];W[js];B[lp];W[ip])
(;W[ks]
(;B[js]
(;W[hs])
(;W[hq];B[ms];W[ip]))
(;B[hs];W[fs];B[js];W[hq];B[mp];W[ip];B[ir];W[is])))
(;B[js];W[hs];B[is];W[fs];B[nq];W[ks]
(;B[ms];W[jr];B[ir];W[hq];B[kr];W[ip])
(;B[jr];W[hq];B[mp];W[ip]))))
(;B[gr];W[fr];B[gq];W[gp];B[kr];W[ls];B[is];W[ln];B[kq];W[lp];B[hr];W[gs];B[ks];W[jr]))
(;B[nr];W[lr];B[kr];W[hq];B[hr];W[gr];B[lo];W[ks];B[js]
(;W[ms])
(;W[ls];B[kq];W[lp];B[hs];W[ir]
(;B[mp])
(;B[jr];W[ip];B[is];W[gs])))
(;B[ln];W[lr];B[fr];W[gr];B[hr]
(;W[gq])
(;W[gs];B[gq];W[hq];B[fp];W[ir]))
(;B[lp];W[kq];B[kr];W[lr];B[js];W[ln]
(;B[gr];W[fr];B[gq];W[gp];B[ir]TR[lp]TR[mo]TR[np]TR[pp]C[Damaged stones.])
(;B[fr];W[gr]
(;B[gq])
(;B[hr];W[gs];B[gq];W[hq];B[fp];W[ir])))
(;B[mq];W[lr]
(;B[kr];W[ln];B[gr];W[fr];B[gq];W[gp];B[js];W[gs];B[hr])
(;B[lp]
(;W[kq];B[lo]
(;W[jr];B[ir];W[ks];B[mr];W[hq];B[ms];W[ls])
(;W[mr];B[nr];W[jr];B[ir];W[ks]
(;B[gr];W[fr];B[gq];W[gp];B[hq])
(;B[ms]
(;W[hr])
(;W[hq];B[hr];W[gr];B[ns];W[ls];B[is];W[ip]))))
(;W[lo];B[ln]
(;W[kq];B[mr];W[mp]C[CHOICE])
(;W[mp]C[CHOICE];B[kq];W[lp]))))
(;B[nq];W[lr];B[kr];W[hq];B[hr];W[gr])
(;B[gr]C[Strengthens White.])
(;B[hq];W[gq]C[Strengthens white.])
(;B[fr];W[gr];B[gq];W[hq];B[hr];W[ir];B[gs];W[jr]C[Thank you BartTM, a trap!]))
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