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life and death
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Problem | 12192 |
Created | 2008-12-31 |
Name | ??????????????????? |
Source | |
Rating | |
Difficulty | 9 dan |
Average Solve Time | 163 secs |
User Attempts |
15 / 179 |
Solve Ratio Rating | 4 dan |
| rating history |
very very hard. black to kill
(;AB[ss]AB[nr]AB[lr]AB[nq]AB[np]AB[oo]AB[po]AB[qo]AB[rn]AB[qm]AB[rl]AB[qk]AW[rm]AW[sm]AW[ro]AW[so]AW[rp]AW[pp]AW[pq]AP[goproblems]
(;B[rr];W[qr];B[ps]
(;W[or]C[CHOICE]
(;B[qp];W[rq]
(;B[qq];W[qs]
(;B[sq];W[pr];B[os]C[RIGHT])
(;B[os];W[sq]MA[rr]MA[ss]))
(;B[sq];W[os]
(;B[qs];W[qq];B[oq];W[pr];B[ns];W[sp];B[op];W[rs];B[qs];W[sr])
(;B[qq];W[qs];B[qn];W[pr];B[sn]C[RIGHT]))
(;B[os];W[qs]
(;B[sq]C[RIGHT])
(;B[qq];W[sq]MA[rr]MA[ss]))
(;B[qs];W[os];B[qq];W[pr];B[sq];W[rs];B[qs];W[ps];B[qn];W[rs]C[Ko]))
(;B[os];W[qs]
(;B[qp];W[sq]
(;B[qq];W[rq])
(;B[rq];W[qq]))
(;B[qq];W[rq]
(;B[qp];W[sq]MA[rr]MA[ss])
(;B[sq];W[qp]))
(;B[rq];W[sq]
(;B[qq];W[qp])
(;B[rs];W[qq])
(;B[sr];W[qq]))))
(;W[qs];B[qp];W[rq];B[sq]C[RIGHT]))
(;B[pr];W[qr];B[rr];W[or];B[qq];W[ps];B[qp];W[rq];B[sq];W[rs];B[qs])
(;B[qp];W[rr];B[qr];W[qq];B[pr];W[qs];B[or];W[sr])
(;B[qs];W[ps];B[pr];W[qr];B[os];W[rr]
(;B[rs];W[sr];B[ps];W[qp])
(;B[qp];W[qq]
(;B[sq];W[sr])
(;B[rs];W[sq]))))
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