invalid problem set
Problem | 21997 |
Created | 2018-07-07 |
Name | Q28 第二å八番 |
Source | Original (オリジナル) |
Rating | |
Difficulty | 8 dan |
Average Solve Time | 231 secs |
User Attempts |
6 / 95 |
Solve Ratio Rating | 5 dan |
| rating history |
28. Ko problem (黒先劫).
Difficulty level 2 at mimura15.jp
(;AW[bn]AW[cn]AW[dn]AW[fn]AW[gm]AW[fp]AW[fq]AW[fr]AW[hr]AB[dq]AB[er]AP[goproblems]
(;B[br];W[es]
(;B[ds];W[cq]
(;B[cp];W[cr]
(;B[dp];W[dr];B[fs];W[eq]
(;B[bq]C[RIGHT])
(;B[cs]C[RIGHT]))
(;B[bq];W[dp]
(;B[cs];W[bp])
(;B[dr];W[bp])
(;B[bp];W[eq]))
(;B[cs];W[bp];B[bq];W[dp]))
(;B[cr];W[bq])
(;B[bq];W[cp];B[cr];W[bs]))
(;B[cr];W[ds])
(;B[cp];W[ds]))
(;B[bq];W[cr];B[dr];W[cp];B[cq];W[br]
(;B[ar];W[bs])
(;B[es];W[cs])
(;B[bs];W[ar])
(;B[bp];W[ap]))
(;B[bp];W[cr]
(;B[cq];W[dr])
(;B[dr];W[cq];B[cp];W[es]))
(;B[cp];W[cr]
(;B[cq];W[dr])
(;B[br];W[dr])
(;B[dr];W[bq];B[bp];W[es]
(;B[ds];W[ar])
(;B[bs];W[br])))
(;B[cq];W[bp]
(;B[br];W[ar])
(;B[ar];W[bs];B[cr];W[eq]
(;B[es];W[cs])
(;B[ds];W[fs])
(;B[fs];W[ds]))
(;B[bq];W[aq];B[ar];W[bs]
(;B[es];W[cr])
(;B[ds];W[eq]
(;B[cr];W[fs])
(;B[cs];W[fs])
(;B[br];W[fs])
(;B[fs];W[cr]))
(;B[cs];W[es])
(;B[cr];W[eq]
(;B[ds];W[fs])
(;B[es];W[cs])
(;B[fs];W[ds];B[es];W[cs]
(;B[dr];W[ap])
(;B[ap];W[dr])))))
(;B[cr];W[bq]
(;B[br];W[cq])
(;B[bp];W[cp];B[cq];W[br])))
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