invalid problem set
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life and death
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Problem | 5263 |
Created | 2004-10-16 |
Name | chinese - 249 |
Source | chinese book |
Rating | |
Difficulty | 12.5 kyu |
Average Solve Time | 40 secs |
User Attempts |
4645 / 10914 |
Solve Ratio Rating | 7 kyu |
| rating history |
(;AB[rs]AB[qs]AB[qr]AB[pr]AB[pq]AB[pp]AB[po]AW[rr]AW[qq]AW[sq]AW[so]AW[ro]AW[qo]AW[qp]AB[rp]AW[pn]AW[pm]AW[ql]AW[rl]AB[qn]AB[rn]AB[sn]C[Black to play and win]
(;B[rq];W[sp];B[rq]
(;W[rp]C[CHOICE];B[ss]C[RIGHT])
(;W[qm];B[sr]))
(;B[sp];W[rq]
(;B[ss];W[sm];B[sr];W[rm]
(;B[rp];W[qm])
(;B[sp];W[qm]))
(;B[rp];W[sm];B[ss];W[rm];B[sr];W[qm])
(;B[sp];W[sm];B[ss];W[rm];B[sr];W[qm]))
(;B[ss];W[sm];B[rq];W[sp]
(;B[rq];W[rm];B[sr];W[qm])
(;B[sr];W[rm])
(;B[rp];W[rm]))
(;B[sr];W[ss];B[rq];W[sp]
(;B[sr])
(;B[rq];W[rp]C[ko])))
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