invalid problem set
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life and death
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Problem | 15554 |
Created | 2011-12-31 |
Source | KGS game |
Rating | |
Difficulty | 2.7 kyu |
Average Solve Time | 74 secs |
User Attempts |
540 / 1515 |
Solve Ratio Rating | 5 kyu |
| rating history |
Black played 1. White to defend and avoid ko.
(;AB[sb]AB[rb]AB[rc]AB[qc]AB[pc]AB[pd]AB[oe]AB[od]AB[nd]AW[pe]AW[pf]AW[pg]AW[qh]AW[rg]AW[ri]AW[si]AW[sj]AW[qd]AW[rd]AW[sd]AW[sc]AB[of]AW[og]AB[ng]AB[nh]AB[oh]AB[ph]AB[qi]AB[pj]AB[rj]AB[rk]AB[sk]AB[rf]LB[rf:1]AP[goproblems]
(;W[qg];B[sg]
(;W[rh];B[qe]
(;W[se];B[sf])
(;W[re];B[se])
(;W[sf];B[se])
(;W[qf];B[sh])
(;W[sh];B[qf]))
(;W[sh];B[rh])
(;W[qe];B[rh]
(;W[sh];B[rh])
(;W[qf];B[sh])
(;W[re];B[sf]
(;W[sh];B[rh])
(;W[qf];B[se])
(;W[se];B[qf]))
(;W[sf];B[se]
(;W[sh];B[rh])
(;W[qf];B[re])
(;W[re];B[qf])))
(;W[qf];B[se]
(;W[qe];B[rh];W[sh];B[rh])
(;W[re];B[qe])
(;W[rh];B[qe];W[re];B[qe])
(;W[sh];B[rh]))
(;W[re];B[rh]
(;W[sh];B[rh];W[sf];B[se]C[Ko.])
(;W[sf];B[se]C[Ko.])
(;W[se];B[sh];W[sf];B[qf])
(;W[qf];B[qe])
(;W[qe];B[sh]))
(;W[sf];B[se]
(;W[re];B[qe])
(;W[qe];B[rh]
(;W[sh];B[rh])
(;W[qf];B[re])
(;W[re];B[qf])))
(;W[se];B[sf];W[qe];B[rh]
(;W[sh])
(;W[re];B[qf])))
(;W[rh];B[qe]
(;W[qf];B[qg])
(;W[re];B[se])
(;W[se];B[qg]
(;W[qf];B[qg])
(;W[re];B[sf];W[qf];B[qg])
(;W[sf];B[qf])
(;W[sg];B[qf])
(;W[sh];B[sg]))
(;W[sg];B[se])
(;W[qg];B[se];W[qf];B[re]))
(;W[qf];B[se];W[qe];B[rh];W[sh];B[sg]C[Ko])
(;W[qe];B[sg]
(;W[rh];B[qf]
(;W[qg]C[Seki.RIGHT])
(;W[re];B[se]C[Ko.])
(;W[se];B[qg]
(;W[sf];B[re])
(;W[re];B[sf]))
(;W[sf];B[se];W[qg]C[Seki.RIGHT])
(;W[sh];B[qg]))
(;W[qf])
(;W[re];B[rh];W[qg];B[sh])
(;W[qg];B[rh];W[re];B[sh])
(;W[sf];B[se];W[rh];B[qf];W[qg]C[Seki.RIGHT])
(;W[se];B[rh];W[qg];B[sh]))
(;W[re];B[sg]
(;W[qf];B[rh]
(;W[sf]C[White is alive. White gets either sente or a big gote move.RIGHT])
(;W[sh];B[rh]
(;W[sf]C[White is alive. This is more or less equal in points to the seki.RIGHT])
(;W[qg];B[qe]))
(;W[qg];B[qe]))
(;W[qe];B[rh];W[qg])
(;W[rh];B[se]C[Ko.])
(;W[se];B[sf];W[qe];B[qg];W[qf];B[qg])
(;W[qg];B[rh]
(;W[sh];B[rh];W[sf];B[se]C[Ko.])
(;W[sf];B[se]C[Ko.])
(;W[se];B[sh];W[sf];B[qf])
(;W[qf];B[qe])
(;W[qe]))
(;W[sf];B[se]C[Ko.]))
(;W[sf];B[qe]
(;W[qf];B[qg])
(;W[re];B[se])
(;W[se];B[qg];W[qf];B[qg])
(;W[qg];B[se];W[re];B[se])
(;W[sg];B[qg]
(;W[re];B[se])
(;W[qf];B[qg])
(;W[rh];B[qf])
(;W[se];B[qf])
(;W[sh];B[qf]))
(;W[rh];B[se]
(;W[re];B[se])
(;W[sg];B[re])))
(;W[se];B[qe];W[sf];B[qg];W[qf];B[qg])
(;W[sg];B[qe]
(;W[sf];B[qg]
(;W[re];B[se])
(;W[qf];B[qg])
(;W[rh];B[qf])
(;W[se];B[qf])
(;W[sh];B[qf]))
(;W[se];B[qg]
(;W[qf];B[qg])
(;W[sf];B[qf])))
(;W[sh];B[qe];W[sf];B[qg];W[re];B[qf]))
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