invalid problem set
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Problem | 8575 |
Created | 2006-05-17 |
Name | k37 |
Source | dashnet |
Rating | |
Difficulty | 6 dan |
Average Solve Time | 85 secs |
User Attempts |
108 / 1135 |
Solve Ratio Rating | 3 dan |
| rating history |
ko is not a solution.
(;AB[bo]AB[bm]AB[co]AB[do]AB[eo]AB[fo]AB[hp]AB[ip]AW[bp]AW[cp]AW[dp]AW[dq]AW[eq]AW[fq]AW[gq]AW[hq]AB[bq]AB[cq]AB[er]C[Black to kill]AW[ar]AB[hs]AB[ir]AB[iq]AP[goproblems]
(;B[dr];W[cr]
(;B[bs]
(;W[fr]C[CHOICE]
(;B[br];W[es]
(;B[ap];W[ds]
(;B[gs];W[aq]
(;B[ao];W[cs];B[as];W[aq];B[ar];W[aq];B[bq]C[CHOICERIGHT])
(;B[as];W[aq]
(;B[ao];W[cs];B[ar];W[aq];B[bq]C[RIGHT])
(;B[ar];W[cs];B[ao];W[aq];B[bq]C[RIGHT]))
(;B[dr];W[ao]))
(;B[aq];W[gs];B[hr];W[gr])
(;B[gr];W[gs];B[fs];W[hr])
(;B[dr];W[cs]
(;B[gs];W[aq])
(;B[aq];W[gs])
(;B[ao];W[gs]))
(;B[as];W[gs])
(;B[ao];W[gs])
(;B[cs];W[dr]
(;B[gs];W[aq])
(;B[aq];W[gs])))
(;B[cs];W[aq])
(;B[aq];W[ds]
(;B[ap];W[gs];B[hr];W[gr])
(;B[gs];W[ap]))
(;B[gs];W[aq]))
(;B[cs]
(;W[es]C[]
(;B[aq];W[ds]
(;B[br];W[ap])
(;B[dr];W[ap])
(;B[ap];W[br]))
(;B[ds]
(;W[fs]C[]
(;B[aq]C[];W[br];B[as]
(;W[br];B[ap]C[RIGHT])
(;W[ap];B[br]C[RIGHT]))
(;B[ap];W[br])
(;B[br];W[aq]))
(;W[br];B[fs]C[RIGHT];W[aq];B[gs]C[RIGHT]))
(;B[br];W[aq]))
(;W[br];B[fs]
(;W[aq];B[gs]C[RIGHT])
(;W[es];B[ds];W[aq];B[gs]C[RIGHT])))
(;B[aq];W[br])
(;B[ap];W[br]))
(;W[br];B[cs]
(;W[fr];B[fs]
(;W[aq];B[gs]C[RIGHT])
(;W[es];B[ds];W[aq];B[gs]C[RIGHT]))
(;W[fs];B[fr];W[gr];B[gs]
(;W[ds];B[es]C[RIGHT])
(;W[es];B[ds];W[fs];B[es]C[RIGHT])))
(;W[fs];B[fr];W[br];B[cs]C[]
(;W[ds];B[gr]C[RIGHT])
(;W[gr];B[gs]
(;W[ds];B[es]C[RIGHT])
(;W[es];B[ds];W[fs];B[es]C[RIGHT]))))
(;B[br];W[bs];B[cs];W[aq]C[ko])
(;B[cs];W[bs]
(;B[br];W[aq]C[ko])
(;B[aq];W[ap]))
(;B[aq];W[ap]
(;B[cs];W[bs])
(;B[bs];W[cs]))
(;B[ap];W[br];B[cs];W[bs])
(;B[fs];W[bs]))
(;B[fs];W[cr]
(;B[bs];W[cs]
(;B[br];W[aq])
(;B[dr];W[br])
(;B[ap];W[br]))
(;B[dr];W[bs])
(;B[ap];W[br]))
(;B[cs];W[dr]
(;B[aq];W[ap]
(;B[ds];W[fs];B[br];W[es])
(;B[fs];W[ds]))
(;B[ds];W[fs]
(;B[ap];W[aq])
(;B[aq];W[ap];B[br];W[es])))
(;B[cr];W[dr]
(;B[ds];W[fs];B[ap];W[aq]
(;B[ao];W[bs])
(;B[br];W[ao]))
(;B[ap];W[aq]))
(;B[bs];W[dr]
(;B[cs];W[ds];B[ap];W[aq];B[ao];W[br])
(;B[ap];W[aq]
(;B[ao];W[br])
(;B[cs];W[ds];B[ao];W[br]))
(;B[cr];W[ap]))
(;B[fr];W[dr])
(;B[ds];W[cr]
(;B[bs];W[cs];B[br];W[dr])
(;B[aq];W[ap]
(;B[bs];W[cs])
(;B[cs];W[bs])))
(;B[aq];W[ap]
(;B[dr];W[cr]
(;B[cs];W[bs])
(;B[bs];W[cs]))
(;B[cr];W[dr]
(;B[ds];W[fs])
(;B[fs];W[cs])
(;B[bs];W[ds])))
(;B[es];W[dr])
(;B[ap];W[cr]
(;B[br];W[bs])
(;B[aq];W[br]
(;B[ao];W[fr])
(;B[fr];W[ao]))
(;B[bs];W[br])
(;B[dr];W[br];B[cs];W[bs]))
(;B[br];W[cr]
(;B[dr];W[bs];B[cs];W[aq]C[ko])
(;B[ap];W[bs])
(;B[cs];W[bs];B[dr];W[aq]C[ko])
(;B[aq];W[ap])
(;B[bs];W[dr];B[ap]
(;W[aq];B[as];W[aq];B[ar];W[cs];B[ao];W[aq];B[bq];W[es])
(;W[cs]
(;B[aq];W[es])
(;B[es];W[aq];B[as];W[aq];B[ar];W[aq]
(;B[ao];W[br])
(;B[bq];W[ao]
(;B[br];W[bs]C[seki])
(;B[ar];W[ap];B[br];W[bs])))))))
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