invalid problem set
Problem | 5545 |
Created | 2004-11-15 |
Name | Go Seigen Tsumego No.79 |
Source | Go Seigen |
Rating | |
Difficulty | 7 dan |
Average Solve Time | 61 secs |
User Attempts |
160 / 1408 |
Solve Ratio Rating | 3 dan |
| rating history |
White to play.
(;AB[mb]AB[mc]AB[nd]AB[of]AB[pf]AB[qf]AB[qe]AB[rf]AB[rc]AB[rd]AB[pb]AW[re]AW[qd]AW[pc]AW[ob]AW[oc]AW[od]AW[pe]SZ[19]
(;W[oe];B[ne]
(;W[qc];B[qb];W[rb]
(;B[ra];W[sb];B[qa]
(;W[pa];B[oa];W[na]
(;B[nb]C[Black's best option is ko.RIGHT])
(;B[se]
(;W[pa];B[sc]
(;W[sa];B[qb]
(;W[nb]C[CHOICERIGHT])
(;W[pb];B[ra];W[nb]C[RIGHT])
(;W[ra];B[qa]
(;W[nb]C[RIGHT])
(;W[pb]C[RIGHT])
(;W[rb]C[RIGHT])
(;W[ra];B[rb]))
(;W[qa];B[ra]
(;W[nb]C[RIGHT])
(;W[pb];B[nb];W[rb];B[sb]C[Ko])
(;W[rb];B[sb]
(;W[nb]C[RIGHT])
(;W[pb];B[nb]))))
(;W[nb];B[sa]))
(;W[nb];B[sc];W[pa];B[sa])))
(;W[oa];B[se];W[pa];B[sc];W[sa];B[qb]C[]))
(;B[sb];W[ra]C[RIGHT]))
(;W[qb];B[qc];W[rb];B[sb]))
(;W[qb];B[qc];W[rb];B[sb]C[])
(;W[qc];B[oe]
(;W[rb];B[sb])
(;W[qb];B[rb]))
(;W[rb];B[qc];W[qb];B[sb]))
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