invalid problem set
Problem | 16868 |
Created | 2012-12-21 |
Source | Graded go problems for beginners by Kano Yoshinori |
Rating | |
Difficulty | 8.5 kyu |
Average Solve Time | 46 secs |
User Attempts |
1043 / 2848 |
Solve Ratio Rating | 6 kyu |
| rating history |
(;AB[sq]AB[rq]AB[qq]AB[pq]AB[qr]AB[ps]AB[op]AB[oo]AB[pn]AB[rn]AW[pp]AW[qp]AW[rp]AW[sp]AW[oq]AW[or]AW[pr]AW[mq]AW[np]C[black has to win the semeai (capturing race) without ko]AP[goproblems]
(;B[rs];W[sr];B[po];W[os];B[ro];W[qs])
(;B[po]
(;W[rs];B[ro];W[qs];B[sr];W[os];B[qo])
(;W[sr]
(;B[rs];W[os]
(;B[ro];W[qs])
(;B[qo];W[qs])
(;B[so];W[qs]))
(;B[rr];W[rs])
(;B[qs];W[rs])
(;B[ro];W[rr])
(;B[qo];W[rr])
(;B[so];W[rr])))
(;B[sr];W[rs]
(;B[po];W[qs]
(;B[ro];W[os]
(;B[qo]C[RIGHT])
(;B[so]C[RIGHT]))
(;B[qo];W[os]
(;B[ro]C[RIGHT])
(;B[so]C[RIGHT]))
(;B[so];W[os]
(;B[ro]C[RIGHT])
(;B[qo]C[RIGHT])))
(;B[qo];W[qs]
(;B[ro];W[os]
(;B[po]C[RIGHT])
(;B[so]C[RIGHT]))
(;B[so];W[os]
(;B[ro]C[RIGHT])
(;B[po]C[RIGHT]))
(;B[po];W[os]
(;B[ro]C[RIGHT])
(;B[so]C[RIGHT])))
(;B[so];W[qs]
(;B[ro];W[os]
(;B[po]C[RIGHT])
(;B[qo]C[RIGHT]))
(;B[qo];W[os]
(;B[ro]C[RIGHT])
(;B[po]C[RIGHT]))
(;B[po];W[os]
(;B[ro]C[RIGHT])
(;B[qo]C[RIGHT])))
(;B[ro];W[qs]
(;B[po];W[os]
(;B[qo]C[RIGHT])
(;B[so]C[RIGHT]))
(;B[qo];W[os]
(;B[po]C[RIGHT])
(;B[so]C[RIGHT]))
(;B[so];W[os]
(;B[po]C[RIGHT])
(;B[qo]C[RIGHT])))
(;B[qs];W[os]))
(;B[qo];W[sr]
(;B[po];W[rr])
(;B[ro];W[rr])
(;B[so];W[rr])
(;B[rs];W[os]
(;B[po];W[qs])
(;B[ro];W[qs])
(;B[so];W[qs]))
(;B[qs];W[rs]))
(;B[ro];W[sr]
(;B[po];W[rr])
(;B[qo];W[rr])
(;B[so];W[rr])
(;B[rs];W[os]
(;B[po];W[qs])
(;B[qo];W[qs])
(;B[so];W[qs]))
(;B[rr];W[rs]))
(;B[so];W[sr]
(;B[rs];W[os]
(;B[ro];W[qs])
(;B[po];W[qs])
(;B[qo];W[qs]))
(;B[rr];W[rs]))
(;B[qs];W[os]
(;B[rs];W[sr])
(;B[sr];W[rs])
(;B[ss];W[rr]))
(;B[rr]
(;W[rs]
(;B[ss];W[sr]LB[qs:X])
(;B[qs];W[ss]))
(;W[qs]
(;B[ss];W[os])
(;B[rs];W[os]
(;B[po];W[ss];B[ro];W[qs])
(;B[qo];W[ss]
(;B[po];W[qs])
(;B[ro];W[qs])
(;B[so];W[qs]))
(;B[ro];W[ss]
(;B[po];W[qs])
(;B[qo];W[qs])
(;B[so];W[qs]))
(;B[so];W[ss]
(;B[ro];W[qs])
(;B[qo];W[qs])
(;B[po];W[qs]))))))
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