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life and death
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Problem | 8564 |
Created | 2006-05-14 |
Name | book 3, 105 |
Source | Lee ChangHo's Selected Life&Death |
Rating | |
Difficulty | 2.9 dan |
Average Solve Time | 52 secs |
User Attempts |
426 / 1942 |
Solve Ratio Rating | 2 kyu |
| rating history |
(;AB[bq]AB[cq]AB[cp]AB[ap]AB[bo]AB[dr]AW[er]AW[dq]AW[dp]AW[co]AW[cn]AW[bn]AW[an]AW[en]AW[fq]AP[goproblems]
(;W[ds]
(;B[cr]C[CHOICE];W[ar]C[];B[ao]
(;W[aq];B[bp]C[RIGHT])
(;W[br];B[bs]))
(;B[ar]C[CHOICE];W[bs]C[RIGHT]))
(;W[ar];B[br];W[ds];B[cs])
(;W[br];B[cr];W[ar];B[bs])
(;W[ao];B[ar]
(;W[cr];B[br];W[ds];B[bs]C[Only a ko])
(;W[bp];B[cr];W[bs];B[bo];W[ds];B[cs]LB[bp:Ko?];W[bp]C[Ko is not enough.]))
(;W[bs];B[cs]
(;W[br];B[ar];W[ao];B[bp];W[es];B[cr])
(;W[ar];B[br];W[es];B[aq];W[ds];B[as];W[cr])))
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