invalid problem set
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life and death
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+3
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Problem | 896 |
Created | 2001-07-16 |
Source | Japanese booklet |
Rating | |
Difficulty | 6 dan |
Average Solve Time | 49 secs |
User Attempts |
206 / 2629 |
Solve Ratio Rating | 4 dan |
| rating history |
(;GM[1]FF[3]
AW[rd][qe][qf][qg][qh][rh][sh]
AB[pb][qc][pd][pe][pf][rf][pg][ph][qi][ri][si]PL[2]C[White to live.]
(;W[qd];B[sf])
(;W[re];B[se]
(;W[rc];B[rb]
(;W[sg];B[sf];W[sc]C[RIGHT Seki.])
(;W[sf];B[sg]C[Dead shape.
])
)
(;W[sg];B[rc];W[sf];B[sd];W[sc];B[sd])
(;W[rg];B[sf];W[rc];B[rb])
)
(;W[rc];B[re]
(;W[se];B[sf]
(;W[qd];B[rb];W[sc];B[sd]
C[1000-year-Ko, but not unconditionally alive.
])
(;W[rb];B[qd])
)
(;W[sf];B[se]
(;W[sd];B[sg];W[qd];B[rb])
(;W[qd];B[rb]
(;W[rg];B[sg]C[Ko.
])
(;W[sc];B[sg]C[Dead shape.
])
(;W[sg];B[sc])
)
)
(;W[sd];B[qd];W[sf];B[rg])
(;W[rg];B[qd])
(;W[rb];B[qd])
(;W[qb];B[qd])
(;W[qd];B[rb];W[sf];B[se]
(;W[rg];B[sg]C[Ko.])
(;W[sg];B[sc])
(;W[sc];B[sg])
)
)
(;W[sd];B[sf])
(;W[rg];B[sf]
(;W[rc];B[rb];W[sc];B[se])
(;W[se];B[rc])
)
(;W[sf];B[se]
(;W[sg];B[re];W[qd];B[rc])
(;W[rg];B[sg]C[Ko.])
(;W[re];B[sg];W[rg];B[sf];W[rc];B[rb])
)
)
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