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life and death
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Problem | 13862 |
Created | 2010-07-28 |
Name | Comb patterns, Pattern 17 |
Source | All about life and death, Cho Chikun |
Rating | |
Difficulty | 18 kyu |
Average Solve Time | 48 secs |
User Attempts |
2942 / 7001 |
Solve Ratio Rating | 7 kyu |
| rating history |
Black to live
(;AB[sr]AB[rr]AB[qq]AB[pq]AB[or]AB[nr]AW[mr]AW[mq]AW[nq]AW[oq]AW[pp]AW[qp]AW[rp]AW[rq]AW[ns]AP[goproblems]
(;B[pr];W[qs]
(;B[rs];W[os]
(;B[qr]C[RIGHT])
(;B[ps];W[qr]))
(;B[qr];W[rs])
(;B[ps];W[rs]))
(;B[os];W[pr]
(;B[qr];W[ps])
(;B[ps];W[qs]))
(;B[qs];W[pr]
(;B[qr];W[os])
(;B[ps];W[os])
(;B[os];W[ps]))
(;B[qr];W[ps]
(;B[qs];W[os])
(;B[os];W[pr])
(;B[pr];W[os]))
(;B[rs];W[pr])
(;B[ps];W[ms]
(;B[rs]C[RIGHT])
(;B[pr];W[os]
(;B[qs]C[RIGHT])
(;B[rs]C[RIGHT]))
(;B[qr];W[os];B[rs];W[pr];B[or]C[RIGHT])
(;B[qs];W[pr];B[qr];W[os])))
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