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life and death
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-3
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Problem | 6613 |
Created | 2005-06-03 |
Source | |
Rating | |
Difficulty | 9 dan |
Average Solve Time | 49 secs |
User Attempts |
61 / 1282 |
Solve Ratio Rating | 5 dan |
| rating history |
(;SZ[19]AW[lb]AW[mb]AW[pb]AW[rb]AW[kc]AW[nc]AW[nd]AW[od]AW[rd]AW[pe]AW[qe]AW[re]AB[nb]AB[ob]AB[lc]AB[mc]AB[oc]AB[pc]AB[rc]AB[pd]AB[qd]C[B to live unconditionally.]GM[1]FF[4]CA[UTF-8]AP[CGoban:2]ST[2]RU[Japanese]KM[0.00]
(;B[sb];W[qb]C[CHOICE];B[qc];W[na]
(;B[oa]
(;W[sd]
(;B[sc];W[ra]
(;B[ma];W[kb];B[pa];W[qa]C[B dies.])
(;B[pa];W[qa]C[B dies.]))
(;B[ma];W[kb];B[sc];W[ra];B[pa];W[qa]C[B dies.]))
(;W[ra];B[ma];W[kb];B[pa];W[qa]))
(;B[pa];W[ra])
(;B[ra]))
(;B[sc];W[qb];B[qc];W[sb]C[4 vs 3. B dies.])
(;B[qb];W[sc]C[B dies.])
(;B[pa];W[qb]LB[qc:A]LB[sc:B]C[A and B are miai. B dies.])
(;B[ma];W[kb];B[sb]
(;W[qb];B[qc];W[ra];B[pa];W[na]
(;B[qa];W[oa];B[pa];W[na];B[qa]C[B lives.RIGHT];W[oa];B[pa];W[na];B[qa]C[B lives.RIGHT])
(;B[sc];W[qa])
(;B[oa];W[qa]))
(;W[qa];B[qc];W[qb]
(;B[sc]
(;W[na]C[CHOICE]
(;B[pa];W[oa]
(;B[pa];W[oa];B[ra];W[sa];B[na];W[la]
(;B[ra];W[sa];B[pa]C[Double ko. B lives.RIGHT])
(;B[pa];W[oa];B[ra]C[Double ko. B lives.RIGHT]))
(;B[ra];W[sa];B[pa];W[oa];B[na];W[la]
(;B[ra];W[sa];B[pa]C[Double ko. B lives.RIGHT])
(;B[pa];W[oa];B[ra]C[Double ko. B lives.RIGHT])))
(;B[ra];W[sa];B[pa];W[oa]
(;B[ra];W[sa];B[pa];W[oa];B[na];W[la]
(;B[ra];W[sa];B[pa]C[Double ko. B lives.RIGHT];W[oa];B[ra]C[Double ko. B lives.RIGHT])
(;B[pa];W[oa];B[ra]C[Double ko. B lives.RIGHT];W[sa];B[pa]C[Double ko. B lives.RIGHT]))
(;B[pa];W[oa];B[na];W[la]
(;B[ra];W[sa];B[pa]C[Double ko. B lives.RIGHT])
(;B[pa];W[oa];B[ra]C[Double ko. B lives.RIGHT])))
(;B[oa];W[sd];B[ra];W[sa]C[Ko.]))
(;W[pa]C[CHOICE];B[na];W[la];B[sa]C[Seki.RIGHT]))
(;B[pa];W[oa]
(;B[na];W[la];B[pa]C[Direct ko.])
(;B[ra];W[sa];B[sc];W[sd];B[ra]C[Ko.]))
(;B[ra];W[sa];B[sc]
(;W[na]
(;B[pa];W[oa]
(;B[ra];W[sa];B[pa];W[oa];B[na];W[la]
(;B[ra];W[sa];B[pa]C[Double ko. B lives.RIGHT])
(;B[pa];W[oa];B[ra]C[Double ko. B lives.RIGHT]))
(;B[pa]))
(;B[oa];W[sd];B[ra];W[sa]C[Ko.]))
(;W[sd];B[oa];W[la];B[ra];W[sa]C[Ko.])))))
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