invalid problem set
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Problem | 972 |
Created | 2001-08-03 |
Name | C39 |
Source | Sikatu no Tamatebako |
Rating | |
Difficulty | 8 dan |
Average Solve Time | 45 secs |
User Attempts |
151 / 2566 |
Solve Ratio Rating | 5 dan |
| rating history |
Black can get a ko here.
(;SZ[19]AW[da]AB[da]AB[cb]AB[dc]AB[eb]AW[bc]AW[fb]AW[gb]AW[ec]AW[ed]AW[de]AW[dg]AW[cg]AW[bg]GM[1]VW[]
(;B[bd];W[cd];B[cc];W[bb]
(;B[ce];W[dd]
(;B[ac];W[be];B[ae]C[RIGHT])
(;B[ae];W[ba]
(;B[ca];W[fa];B[ac];W[ea])
(;B[ac];W[ca]))
(;B[be];W[ba]
(;B[ac];W[ca])
(;B[ca];W[fa];B[ac];W[ea]))
(;B[ad];W[ba]
(;B[ca];W[fa];B[ac];W[ea];B[ab];W[db])
(;B[ac];W[ca]))
(;B[bf];W[ba]
(;B[ca];W[fa];B[ac];W[ea])
(;B[ac];W[ca])))
(;B[ba];W[be])
(;B[ac];W[be];B[ae];W[ab])
(;B[ae];W[be]
(;B[ac];W[ab])
(;B[ad]
(;)
(;W[af])))
(;B[dd];W[ce]
(;B[be];W[bf])
(;B[ad]
(;)
(;W[be])))
(;B[be];W[ba]
(;B[ac];W[fa]
(;B[ea];W[ca])
(;B[ab];W[ea]
(;B[ca];W[ae]
(;B[af];W[bf])
(;B[bf];W[af])
(;B[aa];W[bb]
(;B[bf];W[af])
(;B[af];W[bf])))
(;B[bf];W[dd]
(;B[ad];W[af];B[aa];W[db];B[ca];W[bb])
(;B[af];W[ad];B[ae];W[ag];B[ad];W[ce])))
(;B[ae];W[dd]
(;B[ca];W[ea])
(;B[ea];W[ca])
(;B[ab];W[ea]C[Black can capture, but
must fill his second
eye...])))
(;B[ca];W[ae]
(;B[ea];W[dd];B[ac];W[fa])
(;B[ac];W[fa]
(;B[ab];W[ea]
(;B[af];W[bf])
(;B[bf];W[af])
(;B[aa];W[bb]
(;B[bf];W[af])
(;B[af];W[bf])))
(;B[ea];W[dd])
(;B[af];W[bf]
(;B[ea];W[dd])
(;B[ab];W[ea]))))))
(;B[cc];W[bb];B[bd];W[be]
(;B[ac];W[cd];B[ae];W[ab]C[Not a ko !])
(;B[ad];W[cd])
(;B[cd];W[ad])))
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