Problem | 13769 |
Created | 2010-06-07 |
Source | Chinese book |
Rating | |
Difficulty | 9 dan |
Average Solve Time | 50 secs |
User Attempts |
29 / 219 |
Solve Ratio Rating | 2 dan |
| rating history |
Variations can be a little complex. Feel free to inform me about anything I missed or any incorrect sequence.
(;AW[bs]AW[cr]AW[dq]AW[eq]AW[fq]AW[gr]AW[iq]AB[ip]AB[jp]AB[jq]AB[jr]AB[br]AB[ar]AB[cq]AW[bq]AB[cp]AB[bp]AB[dp]AB[ep]AB[fo]AB[gp]AB[gq]AW[es]C[Black to kill unconditionally]AB[go]AB[eo]AP[goproblems]
(;B[cs];W[ds]
(;B[er];W[ir]
(;B[fr];W[hq]
(;B[fs]
(;W[gs]
(;B[is];W[dr];B[fr]C[RIGHT])
(;B[hs];W[dr]
(;B[is];W[fr])
(;B[fr];W[is])))
(;W[is]
(;B[fp]C[RIGHT])
(;B[gs];W[hs]C[Ko]))
(;W[hs]
(;B[fp]C[RIGHT])
(;B[js]C[]
(;W[is];B[fp]C[RIGHT])
(;W[dr]
(;B[is];W[gs];B[fr]C[RIGHT])
(;B[hp];W[is]))
(;W[gs]
(;B[is];W[dr];B[fr]C[RIGHT])
(;B[fp];W[dr]
(;B[is];W[fr])
(;B[fr];W[is]))))))
(;B[gs];W[hr])
(;B[hs];W[is]
(;B[fs];W[dr])
(;B[gs];W[fs])
(;B[fp];W[dr]))
(;B[fp];W[dr])
(;B[is];W[hs]
(;B[fs];W[dr];B[js];W[gs];B[fr]C[RIGHT])
(;B[js];W[fs];B[hp];W[dr]
(;B[hr]C[RIGHT])
(;B[fr]C[Why bother? Just capture! Makes life easier :)RIGHT]))))
(;B[hr];W[hq]
(;B[is];W[hs];B[js];W[fr])
(;B[hs];W[is])
(;B[fr];W[hs])
(;B[gs];W[hs]))
(;B[is];W[hs]
(;B[hq];W[fr])
(;B[js];W[fr])
(;B[fr];W[hq]
(;B[fs];W[dr];B[js];W[gs];B[fr]C[RIGHT])
(;B[js];W[fs];B[hp];W[dr]
(;B[hr]C[RIGHT])
(;B[fr]C[Why bother? Just capture! Makes life easier :)RIGHT]))))
(;B[hs];W[fr];B[gs];W[is]))
(;B[fr];W[er];B[gs];W[hr])
(;B[hr];W[gs])
(;B[gs];W[hr]
(;B[fr];W[fs])
(;B[hs];W[is]
(;B[ir];W[fs])
(;B[fr];W[fs]))))
(;B[er];W[dr]
(;B[cs];W[ir]
(;B[fr];W[fs]
(;B[is];W[hs])
(;B[hr];W[hq])
(;B[hs];W[is]))
(;B[hr];W[hq];B[is];W[hs];B[js];W[fr]))
(;B[hr];W[fr]MA[cs]MA[gs]C[Miai])
(;B[fr];W[cs])
(;B[gs];W[hr]
(;B[cs];W[hs])
(;B[hs];W[cs])))
(;B[dr];W[ds]C[Ko])
(;B[ds];W[dr])
(;B[fr];W[er];B[gs];W[hr])
(;B[hr];W[gs])
(;B[fs];W[fr])
(;B[gs];W[hr]
(;B[fr];W[er])
(;B[hs];W[is]
(;B[ir];W[fs];B[hs];W[er])
(;B[dr];W[er];B[cs];W[fs]))
(;B[dr];W[er];B[cs];W[fs])))
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