invalid problem set
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life and death
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Problem | 9137 |
Created | 2006-09-10 |
Source | Chinese book |
Rating | |
Difficulty | 8.7 kyu |
Average Solve Time | 31 secs |
User Attempts |
1243 / 3454 |
Solve Ratio Rating | 5 kyu |
| rating history |
(;AW[qb]AW[qc]AW[rd]AW[re]AB[pb]AB[pc]AB[nc]AB[qd]AB[qe]AB[qf]AB[rf]AB[qh]AP[goproblems]
(;W[rb]
(;B[sc]C[CHOICE]
(;W[sb];B[se];W[rc]C[Yes!RIGHT])
(;W[se];B[qa];W[ra];B[sb])
(;W[qa];B[se]
(;W[rc];B[sd])
(;W[sb];B[sd])))
(;B[qa]C[CHOICE]
(;W[sc];B[ra];W[se];B[sb]C[Ko; white could live unconditionally])
(;W[ra];B[sc];W[sb];B[se];W[rc]C[Yes!RIGHT])))
(;W[sc]C[See problem 9134])
(;W[sb]C[];B[se]
(;W[ra];B[rc])
(;W[rc];B[ra])
(;W[sd];B[ra];W[qa];B[rc];W[sc];B[rb])
(;W[sc];B[ra];W[qa];B[rb])
(;W[rb];B[sd])
(;W[qa];B[rc]))
(;W[ra]C[See problem 9136])
(;W[se];B[rb]
(;W[qa];B[rc])
(;W[rc];B[qa])
(;W[ra];B[rc];W[qa];B[pa]))
(;W[rc];B[se]
(;W[sb];B[ra])
(;W[ra];B[sb])
(;W[sd];B[sb])))
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