invalid problem set
Problem | 8000 |
Created | 2006-01-26 |
Source | Problem 7995 |
Rating | |
Difficulty | 5.9 kyu |
Average Solve Time | 50 secs |
User Attempts |
715 / 2930 |
Solve Ratio Rating | 3 kyu |
| rating history |
(;AW[qp]AW[rp]AW[sp]AB[qn]AB[qm]AB[ql]AB[on]AB[oo]AB[op]AB[oq]AW[qq]AW[rr]AW[sr]AB[pq]AB[qr]AB[rs]AB[pr]C[Can White live? Choose 'Yes' or 'No'.FORCE]LB[oj:Yes]LB[qj:No]AP[goproblems]
(;W[oj];B[qj]C[Prove it then!]
(;W[rn];B[sn]
(;W[rm];B[rl]
(;W[sm];B[ro]
(;W[so];B[qo])
(;W[qo];B[sl])
(;W[sl];B[sk]))
(;W[so];B[qo]
(;W[ro];B[sm];W[sl];B[sm])
(;W[sm];B[ro])
(;W[sl];B[ro]))
(;W[ro];B[sm])
(;W[qo];B[sm])
(;W[sl];B[ro]))
(;W[ro];B[rm])
(;W[so];B[qo]
(;W[rm];B[rl]
(;W[ro];B[sm];W[sl];B[sm])
(;W[sm];B[ro])
(;W[sl];B[ro]))
(;W[ro];B[rm])
(;W[sm];B[rm]))
(;W[sm];B[qo]
(;W[rl];B[rm]
(;W[ro];B[sl])
(;W[so];B[rk])
(;W[sl];B[ro])
(;W[rk];B[sl]))
(;W[rm];B[ro];W[so];B[rl])
(;W[ro];B[rm])
(;W[so]MA[ro]MA[rm]C[Black can kill at either point.];B[rm]))
(;W[qo];B[rm]))
(;W[qo];B[rn])
(;W[ro];B[rn])
(;W[sn];B[rn])
(;W[rm];B[rn];W[sn];B[rl])
(;W[sm];B[rn];W[sn];B[rk]C[No eyespace whatsoever.]))
(;W[qj]AB[qp]AB[rp]AB[sp]AW[qn]AW[qm]AW[ql]AW[on]AW[oo]AW[op]AW[oq]AB[qq]AB[rr]AB[sr]AW[pq]AW[qr]AW[rs]AW[pr]C[];B[rn]C[So, you know how this can be killed...?]
(;W[sn];B[rm]
(;W[rl]
(;B[so]
(;W[qo];B[ro]
(;W[sm];B[sl];W[sm]C[RIGHT])
(;W[sl];B[sm])
(;W[pp];B[sm]))
(;W[sm];B[sl]
(;W[sk];B[qo])
(;W[sm];B[qo])
(;W[qo]
(;B[ro];W[sm]C[RIGHT])
(;B[sm]
(;W[sk];B[ro])
(;W[ro];B[sj]C[Black has only one eye yet, but White may have a hard time preventing Black's escape along the side.RIGHT]))))
(;W[sl];B[sm])
(;W[ro];B[qo]
(;W[sm];B[sl])
(;W[sl];B[sm])))
(;B[sm]
(;W[ro];B[so];W[qo]C[RIGHT])
(;W[sl];B[ro])
(;W[qo];B[ro])))
(;W[sm];B[rl]
(;W[ro];B[qo]
(;W[rk];B[so])
(;W[sl];B[rk]))
(;W[sl];B[rk])
(;W[qo];B[ro])
(;W[rk];B[sl];W[ro];B[so]
(;W[sn];B[qo])
(;W[qo];B[sn])))
(;W[ro];B[qo]
(;W[rl];B[so]
(;W[sm];B[sl])
(;W[sl];B[sm]))
(;W[sm];B[rl]
(;W[rk];B[so])
(;W[sl];B[rk])))
(;W[qo];B[ro]
(;W[sm];B[rl])
(;W[rl];B[sm]))
(;W[sl];B[so]
(;W[qo];B[rl]
(;W[ro];B[rk])
(;W[sm];B[sk])
(;W[rk];B[ro]))
(;W[sm];B[rl];W[sk];B[rk])
(;W[rl];B[sm])
(;W[ro];B[qo]
(;W[rl];B[sm])
(;W[sm];B[rl];W[sk];B[rk])))
(;W[so];B[sm]))
(;W[rm];B[sn]
(;W[ro];B[qo])
(;W[qo];B[ro])
(;W[sm];B[qo]))
(;W[ro];B[qo]
(;W[sn];B[rm]
(;W[rl];B[so]
(;W[sm];B[sl])
(;W[sl];B[sm]))
(;W[sm];B[rl]
(;W[rk];B[so])
(;W[sl];B[rk])))
(;W[rm];B[so])
(;W[sm];B[sn]))
(;W[qo];B[ro]
(;W[sn];B[rm];W[rl];B[sm])
(;W[rm];B[sn])
(;W[sm];B[sn]))
(;W[so];B[rm])
(;W[sm];B[sn]
(;W[ro];B[qo])
(;W[qo];B[ro]))
(;W[sl];B[sn])
(;W[rl];B[sn])))
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