invalid problem set
Problem | 23639 |
Created | 2022-08-14 |
Source | |
Rating | |
Difficulty | 1.3 kyu |
Average Solve Time | 97 secs |
User Attempts |
37 / 211 |
Solve Ratio Rating | 1 dan |
| rating history |
black to live without seki.
(;
AW[da][ea][eb][bc][ec][ed][ce][de][ee][af][bf][cf]
AB[ca][cb][db][dc][bd][cd][dd][ae][be]
SZ13
C[black to live without seki.]
(;B[bb] ;W[ab]
(;B[ac] ;W[ad]
(;B[aa] ;W[ba] ;B[ac] C[RIGHT black lives in double ko.])
(;B[ba] ;W[ac] C[seki.])
)
(;B[aa] ;W[ac]
(;B[ba] ;W[ad] C[black dies.])
(;B[ad] ;W[ba] C[ko.])
)
(;B[ad] ;W[ac]
(;B[ba] C[seki.])
(;B[aa] ;W[ba] C[ko.])
)
(;B[ba] ;W[ac] C[seki.])
)
(;B[ab] ;W[bb]
(;B[ac] ;W[ba] C[seki.])
(;B[ba] ;W[ac]
(;B[ad] ;W[aa] C[ko.])
(;B[aa] ;W[cc] C[black dies.])
)
)
(;B[ac] ;W[bb]
(;B[ab] ;W[ba] C[seki.])
(;B[ba] ;W[ab]
(;B[ad] C[seki.])
(;B[aa] ;W[ad] C[ko.])
)
)
)
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