invalid problem set
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life and death
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-5
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Problem | 4517 |
Created | 2004-05-25 |
Source | pro game |
Rating | |
Difficulty | 9 dan |
Average Solve Time | 68 secs |
User Attempts |
131 / 1721 |
Solve Ratio Rating | 4 dan |
| rating history |
Black to live in the corner
(;SZ[19]AP[MultiGo:3.6.0]AB[bb][ca][cc][dc][cd][de][ee][ed][dh][ci][bi][bh]AW[cb][db][ea][ec][fc][fb][fd][fe][ef][cg][ch][bg][di][ei][be]
TR[be](;B[bd] ;W[ac](;B[ce] ;W[ad](;B[ab] ;W[ba] ;B[bf] ;W[af] ;B[cf] ;W[dg]
;B[bc]C[RIGHT]
)
(;B[bf] ;W[af](;B[ab] ;W[ba] ;B[cf] ;W[dg]
;B[bc]C[RIGHT
But white can give up to remove eye at B19, instead white can answer at C14 to take one black stone. In this case, white can get more points compared to right solution.]
)
(;B[cf] ;W[dg] ;B[ab] ;W[ba]
;B[bc]C[RIGHT]
)
)
(;B[dg] ;W[df](;B[cf] ;W[bf] ;B[ab] ;W[ba] ;B[eg] ;W[ff] ;B[fg] ;W[gg] ;B[fh] ;W[hi]
;B[ag]C[RIGHT
black wins the capturing race]
)
(;B[bf] ;W[af]
;B[cf]C[RIGHT, white cannot answer]
)
)
)
(;B[bf] ;W[ad](;B[ce] ;W[af] ;B[cf] ;W[dg] ;B[ab] ;W[ba]
;B[bc]C[RIGHT]
)
(;B[ab] ;W[ba] ;B[ce] ;W[af] ;B[cf] ;W[dg]
;B[bc]C[RIGHT]
)
)
(;B[dg] ;W[df](;B[cf] ;W[ce] ;B[dd] ;W[ad] ;B[bc] ;W[ab] ;B[ba]
;W[da]C[wrong]
)
(;B[ce] ;W[ad] ;B[bf] ;W[af]
;B[cf]C[RIGHT
white cannot answer]
)
)
(;B[ad] ;W[ce](;B[ab]
;W[ba]C[wrong]
)
(;B[ba]
;W[ab]C[wrong]
)
)
(;B[ab] ;W[ce] ;B[ad]
;W[ba]C[wrong]
)
)
(;B[bf] ;W[ce] ;B[bd] ;W[af] ;B[ac]
;W[ad]C[ko]
)
)
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