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life and death
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Problem | 22372 |
Created | 2020-05-14 |
Source | |
Rating | |
Difficulty | 0.2 kyu |
Average Solve Time | 49 secs |
User Attempts |
71 / 250 |
Solve Ratio Rating | 4 kyu |
| rating history |
black to kill white. from Zonker (KGS) – no longer active account.
(;
AW[ab][bc][cc][bd][dd][be][de][df][bg][cg]
AB[bb][cb][eb][dc][ad][ed][ee][ef][ag][dg][ah][bh][ch][eh]
SZ[19]
C[black to kill.]
(;B[ac]
(;W[af] C[CHOICE]
(;B[cf]
(;W[bf] C[CHOICE]
(;B[ce] C[RIGHT correct.])
(;B[cd] ;W[ce] C[white lives.])
)
(;W[ce] C[CHOICE]
(;B[bf] ;W[ae] ;B[ac] C[RIGHT correct.])
(;B[aa] ;W[bf] C[oops. white lives.])
)
)
(;B[ce] ;W[cf] C[white lives.])
(;B[aa]
(;W[cf] C[CHOICE] C[white lives.])
(;W[ce] C[CHOICE] C[white lives.])
)
)
(;W[ae] C[CHOICE]
(;B[ac] ;W[af]
(;B[cf] ;W[bf]
(;B[ce] C[RIGHT white dies.])
(;B[cd] ;W[ce] C[white lives.])
(;B[aa] ;W[ce] C[white lives.])
)
(;B[aa] ;W[cf] C[white lives.])
(;B[ce] ;W[cf] C[white lives.])
)
(;B[cf] ;W[ce]
(;B[ac] ;W[bf] C[white lives.])
(;B[bf] ;W[ac] C[white lives.])
)
(;B[bf] ;W[cf]
(;B[af] ;W[ac] C[white lives.])
(;B[ac] ;W[af] C[white lives.])
)
)
)
(;B[bf] ;W[cf]
(;B[ae] ;W[af] C[ko. black can do better.])
(;B[ac]
(;W[af] C[CHOICE] C[white lives.])
(;W[ae] C[CHOICE]
(;B[af] ;W[ac] C[white lives.])
(;B[ac] ;W[af] C[white lives.])
)
)
)
(;B[cf] ;W[ce]
(;B[bf] ;W[ae] C[white lives.])
(;B[ac]
(;W[bf] C[CHOICE] C[white lives.])
(;W[ae] C[CHOICE]
(;B[bf] ;W[ac] C[white lives.])
(;B[ac] ;W[bf] C[white lives.])
)
)
)
(;B[ae] ;W[bf]
(;B[af] ;W[ce] C[white lives.])
(;B[ce] ;W[af] C[white lives.])
)
(;B[ce] ;W[cf]
(;B[af] ;W[ae] C[white lives.])
(;B[ac] ;W[ae]
(;B[ac] ;W[af] C[white lives.])
(;B[af] ;W[ac] C[white lives.])
)
(;B[ae] ;W[af] ;B[bf] C[ko. black can do better.])
)
)
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