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life and death
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Problem | 18612 |
Created | 2014-12-13 |
Source | Tsumego Pro Android |
Rating | |
Difficulty | 3.9 dan |
Average Solve Time | 52 secs |
User Attempts |
124 / 446 |
Solve Ratio Rating | 3 kyu |
| rating history |
Black to live in the corner.
(;AB[pb]AB[pc]AB[pd]AB[pe]AB[pf]AB[rb]AW[rd]AW[qe]AW[qf]AW[pg]AW[ph]AW[qi]AW[qj]AB[og]AB[oh]AB[pi]AB[oi]AW[of]AW[oe]AW[od]AW[md]AW[oc]AW[nb]AP[goproblems]
(;B[qg];W[qh]
(;B[rf];W[rg]
(;B[qd];W[rc];B[re];W[qg]
(;B[qc];W[sf]
(;B[sc];W[se];B[qa]C[RIGHT])
(;B[qa];W[sb];B[sa];W[ra]C[ko])
(;B[sb];W[qa]))
(;B[sc];W[sf];B[qc];W[se];B[qa]C[RIGHT]))
(;B[rc];W[qd];B[qc];W[qa];B[pa];W[sc];B[sb];W[ra]))
(;B[rg];W[rf];B[rc];W[qd];B[qc];W[qa];B[pa];W[sc];B[sb];W[ra];B[sd];W[se])
(;B[qd];W[rc];B[rg];W[rf];B[sf];W[re];B[qc];W[qa])
(;B[rc];W[qd];B[rg];W[rf])
(;B[re];W[rf]))
(;B[rf];W[rg]
(;B[qd];W[rc];B[re];W[qg]
(;B[qc];W[sf]
(;B[sc];W[se];B[qa]C[RIGHT])
(;B[qa];W[sb];B[sa];W[ra]C[ko])
(;B[sb];W[qa]))
(;B[sc];W[sf];B[qc];W[se];B[qa]C[RIGHT]))
(;B[rc];W[qd];B[qc];W[qa])
(;B[re];W[qd]))
(;B[qd];W[rc];B[qg];W[qh];B[rg];W[rf];B[sf];W[re];B[qc];W[qa])
(;B[rc];W[qd]
(;B[qc];W[qa]
(;B[pa];W[sc];B[sb];W[ra])
(;B[qg];W[qh]
(;B[pa];W[sc];B[rg];W[rf];B[sb];W[ra];B[sd];W[se])
(;B[rg];W[rf];B[pa];W[sc];B[sb];W[ra];B[sd];W[se])))
(;B[qg];W[qh];B[rg];W[rf];B[qc];W[qa];B[pa];W[sc];B[sb];W[ra];B[sd];W[se]))
(;B[qc];W[qa])
(;B[sb];W[qd])
(;B[re];W[rf];B[rc];W[qd];B[qc];W[qa];B[pa];W[sc];B[sb];W[ra])
(;B[pa];W[rc])
(;B[rg];W[qg]))
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