invalid problem set
Problem | 13958 |
Created | 2010-09-11 |
Source | |
Rating | |
Difficulty | 7 dan |
Average Solve Time | 92 secs |
User Attempts |
65 / 347 |
Solve Ratio Rating | 1 kyu |
| rating history |
Hopefully I covered all the variations! Sorry if the branches aren't as in depth as they could be - this problem was submitted under time constraints
(;AW[qq]AW[rq]AW[rp]AW[pr]AW[os]AB[ns]AB[nr]AB[oq]AB[pq]AB[qp]AB[ro]AB[po]AB[rn]C[Black to kill unconditionally. No ko, please.]AP[goproblems]
(;B[sr];W[rr]
(;B[qs];W[ps]
(;B[or];W[qr]
(;B[rs];W[ss];B[rs]C[White T4 makes bent 4 in the cornerRIGHT])
(;B[sp]
(;W[sq];B[rs]C[RIGHT])
(;W[rs];B[sq]C[RIGHT])))
(;B[rs]C[Bent 4 in the cornerRIGHT])
(;B[sp];W[sq]
(;B[or]C[RIGHT];W[qr];B[rs]C[RIGHT])
(;B[rs];W[ss]C[Ko]))
(;B[sq];W[sp]
(;B[rs];W[qr])
(;B[or];W[qr])))
(;B[sp];W[qs]
(;B[or];W[sq];B[ps]C[Ko])
(;B[sq];W[or];B[rs];W[ss]C[Ko]))
(;B[or];W[qs]C[Ko])
(;B[rs];W[qs]C[Ko]))
(;B[qr];W[rr]
(;B[or];W[qs];B[ps]C[Ko])
(;B[sp];W[qs]))
(;B[qs];W[rs]
(;B[rr];W[sr]C[Ko])
(;B[or];W[qr]))
(;B[sp];W[qs]
(;B[rr];W[sr]
(;B[rs];W[or])
(;B[or];W[rs];B[ps];W[qr]))
(;B[sr];W[rr]
(;B[or];W[sq];B[ps]C[Ko])
(;B[sq];W[or];B[rs];W[ss]C[Ko]))
(;B[or];W[rr]C[Ko]))
(;B[ps];W[qs])
(;B[or];W[qs]C[Ko])
(;B[rr];W[sr];B[rs];W[qs]
(;B[sp];W[or])
(;B[or];W[sp];B[ps];W[qr]))
(;B[rs];W[qs]
(;B[or];W[rr]C[Ko])
(;B[rr];W[sr]
(;B[sp])
(;B[or];W[sp];B[ps];W[qr]))
(;B[sp];W[or]))
(;B[sq];W[sr];B[rs];W[sp]
(;B[qr];W[rr])
(;B[rr];W[qr])
(;B[or];W[qs]))
(;B[ss];W[rs]))
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