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life and death
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Problem | 5343 |
Created | 2004-10-26 |
Name | chinese - 261 |
Source | |
Rating | |
Difficulty | 1.2 dan |
Average Solve Time | 59 secs |
User Attempts |
490 / 2880 |
Solve Ratio Rating | 1 dan |
| rating history |
(;AB[qr]AB[qq]AB[qp]AW[rp]AB[ro]AW[rn]AW[qn]AW[qo]AW[pr]AW[pq]AW[pp]AW[op]AW[ps]AB[or]AB[nq]AB[no]AB[np]AB[po]AB[pn]C[Black to play and win]AP[goproblems]
(;B[sr]
(;W[rs]C[CHOICE];B[rr];W[qs]
(;B[oo];W[sq]
(;B[oq];W[so];B[os]C[RIGHT])
(;B[os];W[so];B[oq]C[RIGHT]))
(;B[oq];W[sq]
(;B[os];W[so];B[oo]C[RIGHT])
(;B[oo];W[so];B[os]C[RIGHT]))
(;B[os];W[sq]
(;B[oo];W[so];B[oq]C[RIGHT])
(;B[oq];W[so];B[oo]C[RIGHT])))
(;W[rr];B[rq]
(;W[rs];B[sp]
(;W[qs];B[oo];W[ss]
(;B[os])
(;B[sq];W[sn];B[os]C[RIGHT]))
(;W[sn];B[qs];W[so];B[ss];W[rp]
(;B[oo];W[sq]
(;B[os]C[RIGHT])
(;B[oq]C[RIGHT]))
(;B[oq];W[sq]
(;B[os]C[RIGHT])
(;B[oo]C[RIGHT]))
(;B[os];W[sq]
(;B[oo]C[RIGHT])
(;B[oq]C[RIGHT]))
(;B[sq];W[rr])))
(;W[so];B[rs]
(;W[qs];B[sq]C[RIGHT])
(;W[sq];B[qs]C[RIGHT]))))
(;B[oo];W[rq];B[rr];W[sr];B[oq];W[rs])
(;B[oq];W[rq]
(;B[rr];W[sr]
(;B[oo];W[rs])
(;B[os];W[rs]))
(;B[oo];W[rr]))
(;B[rq];W[so]
(;B[sr];W[rs]
(;B[qs];W[sp];B[oo];W[sq];B[rr];W[ss])
(;B[rr];W[qs];B[oo];W[ss]))
(;B[rs];W[sr];B[sq];W[qs];B[oo];W[sp];B[rr];W[ss])
(;B[qs];W[rs]
(;B[oo];W[sq])
(;B[sr];W[sp];B[oo];W[sq];B[rr];W[ss])))
(;B[rr];W[sr]
(;B[sq];W[rs];B[ss];W[qs]
(;B[so];W[sn];B[sp];W[sr])
(;B[sp];W[so];B[oo];W[sr]))
(;B[rq];W[so];B[sq];W[qs];B[oo];W[rs];B[ss];W[sp])
(;B[qs];W[rq]))
(;B[rs];W[rq];B[rr];W[sr]
(;B[oo];W[qs])
(;B[sq];W[sp]))
(;B[qs];W[rq]
(;B[oo];W[rr])
(;B[rr];W[sr]))
(;B[sp];W[rq];B[rr];W[so];B[sr];W[qs];B[oo];W[sq];B[oq];W[rs]))
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