invalid problem set
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Problem | 8507 |
Created | 2006-05-03 |
Name | k26 |
Source | dashnet |
Rating | |
Difficulty | 8 dan |
Average Solve Time | 52 secs |
User Attempts |
122 / 1175 |
Solve Ratio Rating | 3 dan |
| rating history |
Ko is not a solution
(;AB[cq]AB[dq]AB[dp]AB[ep]AB[eo]AB[fo]AB[go]AB[ho]AB[hp]AB[er]AB[br]AW[ar]AW[bq]AW[ap]AW[cp]AW[bo]AW[do]AW[dn]AW[en]AW[fn]AW[gn]AW[hn]AW[in]AW[ip]AW[jp]AW[hq]AW[jr]AW[gr]AW[gp]AW[fp]AW[eq]C[Black to live]AP[goproblems]
(;B[fr]
(;W[cr]C[CHOICE]
(;B[dr];W[bs]
(;B[gq];W[fq]
(;B[hr]
(;W[ir]C[CHOICE];B[gq]C[];W[hs]
(;B[fp]C[RIGHT])
(;B[fq]C[RIGHT])
(;B[fs];W[fq])
(;B[ds];W[fq]))
(;W[gq];B[iq]C[RIGHT]))
(;B[gq];W[fq]C[ko]LB[fp:1]
(;B[fp];W[gp])
(;B[hr];W[gp])
(;B[gp];W[hr]))
(;B[iq];W[hr];B[gq];W[fq];B[fp];W[gp]C[ko]))
(;B[fq];W[gq]))
(;B[gq];W[fq]
(;B[gq];W[fq]
(;B[fp];W[gp]C[ko])
(;B[gp];W[hr]))
(;B[hr]
(;W[ir]C[CHOICE];B[gq]C[RIGHT])
(;W[gq];B[iq]C[RIGHT]))
(;B[iq];W[hr];B[gq];W[fq]C[];B[fp];W[gp]C[ko])
(;B[dr]C[NOTTHIS]))
(;B[ds];W[bs];B[gq];W[fq]
(;B[hr];W[ir];B[gq]C[RIGHT])
(;B[gq];W[fq]C[ko];B[fp];W[gp]))
(;B[bs];W[cs]
(;B[fq];W[gq])
(;B[dr];W[as]
(;B[gq];W[fq]
(;B[hr];W[ir];B[gq]C[RIGHT])
(;B[gq];W[fq];B[fp];W[gp]C[ko]))
(;B[fq];W[gq]))
(;B[ds];W[as]
(;B[gq];W[fq]
(;B[gq];W[fq]C[ko])
(;B[hr];W[ir];B[gq]C[RIGHT])
(;B[iq];W[hr];B[gq];W[fq]C[ko]))
(;B[fq];W[gq]))
(;B[gq];W[fq]
(;B[hr];W[ir];B[gq]C[RIGHT])
(;B[gq];W[fq];B[fp];W[gp]C[ko])
(;B[iq];W[hr];B[gq];W[fq];B[fp];W[gp]C[ko]))
(;B[hr];W[gq])))
(;W[gq];B[cr]
(;W[ds];B[fq]C[RIGHT])
(;W[fq];B[ds]C[RIGHT])))
(;B[fq];W[gq]
(;B[fr];W[cr])
(;B[cs];W[fr])
(;B[bs];W[fr])
(;B[cr];W[fr]))
(;B[cr];W[fr])
(;B[bs];W[fr])
(;B[fs];W[fr])
(;B[gq];W[fq];B[fr];W[gq]
(;B[ds];W[cr]
(;B[bs];W[fs])
(;B[fs];W[bs]))
(;B[cr];W[ds])
(;B[bs];W[ds])
(;B[cs];W[fs]))
(;B[cs];W[fr]))
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