invalid problem set
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Problem | 8473 |
Created | 2006-04-28 |
Name | k9 |
Source | dashnet |
Rating | |
Difficulty | 6 dan |
Average Solve Time | 49 secs |
User Attempts |
129 / 1057 |
Solve Ratio Rating | 2 dan |
| rating history |
ko is not a solution
(;AB[cr]AB[cq]AB[dp]AB[do]AB[cn]AB[bn]AB[eq]AB[fq]AB[gq]AB[hp]AB[hr]AB[ir]AW[cp]AW[bp]AW[dq]AW[dr]AW[er]AW[fr]AW[gr]C[Black to kill]AP[goproblems]
(;B[bs]
(;W[bq]
(;B[br]
(;W[ar]
(;B[gs]
(;W[aq]
(;B[fs]
(;W[as]
(;B[cs];W[ds];B[cr]C[CHOICERIGHT])
(;B[es];W[cs])
(;B[ds];W[cs]))
(;W[ds];B[cs];W[as];B[cr]C[CHOICERIGHT]))
(;B[cs];W[fs])
(;B[ds];W[as])
(;B[co];W[as])
(;B[es];W[ds]))
(;W[cs];B[ds];W[aq];B[es]C[RIGHT])
(;W[ds];B[fs]C[];W[aq];B[cs];W[as])
(;W[fs];B[hs];W[ds];B[bo];W[aq];B[co]C[RIGHT]))
(;B[ap];W[ds]
(;B[cs];W[as])
(;B[gs];W[cs]))
(;B[cs];W[gs])
(;B[ds];W[aq]
(;B[gs];W[as])
(;B[cs];W[es]))
(;B[bo];W[ds]
(;B[ap];W[cs])
(;B[cs];W[ap]))
(;B[co]C[NOTTHIS])
(;B[aq];W[ds]))
(;W[es];B[cs];W[gs];B[hs];W[ar];B[bo]C[RIGHT])
(;W[ds];B[gs];W[fs];B[hs];W[ar];B[bo];W[aq];B[co]C[RIGHT])
(;W[gs];B[bo];W[ar];B[ap]C[RIGHT]))
(;B[ar];W[br])
(;B[ds];W[br];B[gs];W[cs];B[cr];W[es])
(;B[cs];W[br])
(;B[gs];W[br]))
(;W[ar];B[br];W[bq]
(;B[gs]
(;W[aq]
(;B[fs]
(;W[as]
(;B[cs];W[ds];B[cr]C[CHOICERIGHT])
(;B[es];W[cs])
(;B[ds];W[cs]))
(;W[ds];B[cs];W[as]))
(;B[cs];W[fs])
(;B[ds];W[as])
(;B[co];W[as])
(;B[es];W[ds]))
(;W[cs];B[ds];W[aq];B[es]C[RIGHT])
(;W[ds];B[fs]C[];W[aq])
(;W[fs];B[hs];W[ds];B[bo];W[aq];B[co]C[RIGHT]))
(;B[ap];W[ds]
(;B[cs];W[as])
(;B[gs];W[cs]))
(;B[cs];W[gs])
(;B[ds];W[aq]
(;B[gs])
(;B[cs];W[es]))
(;B[bo];W[ds]
(;B[ap];W[cs])
(;B[cs];W[ap]))
(;B[co]C[NOTTHIS])
(;B[aq];W[ds]))
(;W[ds];B[gs]
(;W[br];B[bq];W[ar];B[aq];W[ap];B[as]C[RIGHT])
(;W[bq];B[br];W[fs];B[hs];W[ar])))
(;B[bq];W[ar]
(;B[aq];W[cs]
(;B[bs];W[ds])
(;B[ds];W[bs]))
(;B[bs];W[aq]
(;B[br];W[cs]
(;B[ds];W[ap])
(;B[gs];W[as]))
(;B[gs];W[br]))
(;B[ap];W[aq]
(;B[ao];W[cs])
(;B[bs];W[ao];B[br];W[cs];B[ds];W[ap])
(;B[bo];W[ao]))
(;B[cs];W[aq]
(;B[bs];W[ds])
(;B[br];W[ds])
(;B[ao];W[bs])
(;B[bo];W[bs];B[co];W[ap])))
(;B[ar];W[bs]
(;B[cs];W[bq])
(;B[bq];W[cs]
(;B[ap];W[br])
(;B[br];W[ap]))
(;B[br];W[aq])
(;B[ds];W[cs]
(;B[bq];W[ap])
(;B[br]))
(;B[aq];W[ap]))
(;B[br];W[bs]
(;B[cs];W[aq]
(;B[ar];W[ds])
(;B[as];W[ar]C[ko])
(;B[gs];W[ar]C[ko])
(;B[ds];W[ar]C[ko]))
(;B[ar];W[aq]C[thanks to hippophile])
(;B[bq];W[cs])
(;B[aq];W[cs])
(;B[ds];W[bq]
(;B[cs];W[ar]C[ko])
(;B[ar];W[aq])
(;B[gs];W[ar])
(;B[aq];W[ap]))
(;B[gs];W[cs]))
(;B[aq];W[br]
(;B[bq];W[cs])
(;B[cs];W[bq]))
(;B[ds];W[br];B[bs];W[bq];B[gs];W[cs];B[cr];W[es])
(;B[cs];W[bq])
(;B[gs];W[br];B[ds];W[bq];B[bs];W[cs];B[cr];W[es])
(;B[fs];W[br])
(;B[es];W[br];B[ds];W[bq];B[bs];W[cs];B[cr];W[fs]))
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