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Problem | 15670 |
Created | 2012-01-05 |
Source | |
Rating | |
Difficulty | 7 dan |
Average Solve Time | 36 secs |
User Attempts |
39 / 171 |
Solve Ratio Rating | 2 kyu |
| rating history |
(;AW[rd]AW[rc]AW[qb]AW[ob]AW[oc]AW[nb]AB[mb]AB[ma]AB[mc]AB[nc]AB[od]AB[pd]AB[qd]AB[re]AB[qf]C[Most efficient way to reduce w]AP[goproblems]
(;B[ra]
(;W[qc]
(;B[na];W[oa];B[pc];W[pb]
(;B[qa];W[sd];B[sb];W[rb]C[SekiRIGHT])
(;B[sd];W[qa];B[sb];W[sc];B[se]C[RIGHT]))
(;B[pc]C[];W[pb];B[na];W[oa]
(;B[qa];W[sd];B[sb];W[rb]C[SekiRIGHT])
(;B[sd];W[qa];B[sb];W[sc];B[se]C[RIGHT])))
(;W[rb];B[oa];W[pa];B[na];W[sd];B[sb]C[W is deadRIGHT]))
(;B[sd];W[ra])
(;B[sb];W[rb]
(;B[oa];W[pa];B[na];W[ra])
(;B[sd];W[sc];B[pc];W[pb];B[na];W[oa])
(;B[ra];W[pc]
(;B[na];W[pa])
(;B[pa];W[qa];B[qc];W[pb];B[sd];W[sc])))
(;B[na];W[ra];B[pa];W[pb];B[oa];W[sb])
(;B[pb];W[pc];B[qc];W[ra])
(;B[qc];W[ra]))
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