Problem | 12435 |
Created | 2009-02-28 |
Source | |
Rating | |
Difficulty | 9 dan |
Average Solve Time | 51 secs |
User Attempts |
22 / 201 |
Solve Ratio Rating | 3 dan |
| rating history |
(;AB[rr]AB[rq]AB[pp]AB[pq]AB[or]AW[sp]AW[ro]AW[qo]AW[po]AW[op]AW[nq]AW[nr]AW[ns]AW[oo]AW[os]AB[ps]C[Is B safe?]AP[goproblems]
(;W[rs]
(;B[qp]
(;W[qr]
(;B[pr]
(;W[rp]
(;B[sq]
(;W[oq];B[qq];W[sr];B[ss]C[nice :)RIGHT])
(;W[sr];B[ss]C[hard ko])
(;W[qs];B[qq]))
(;B[qs];W[sr]C[RIGHT])
(;B[sr];W[qs]C[RIGHT]))
(;W[qs];B[sq]LB[rp:1]LB[qq:2])
(;W[sq];B[sr]MA[rp]MA[qs])
(;W[sr];B[sq]LB[rp:1]LB[ss:2]C[hard ko]))
(;B[qq];W[sq];B[sr];W[qs]C[RIGHT])
(;B[sq];W[pr]C[RIGHT]))
(;W[sq];B[sr]LB[qr:1]LB[pr:2]MA[qs]MA[rp])
(;W[qs];B[pr]
(;W[sq];B[sr]MA[qr]MA[rp])
(;W[sr];B[sq])
(;W[qr];B[sq]LB[rp:1]LB[qq:2]))
(;W[rp];B[qr])
(;W[sr];B[sq];W[qr];B[pr]))
(;B[sq];W[qp];B[qq];W[qs];B[qr]C[worse ko for bRIGHT])
(;B[qr];W[qp]C[RIGHT])
(;B[qs];W[qp]C[RIGHT]))
(;W[qp];B[rs])
(;W[qr];B[pr])
(;W[sq];B[sr])
(;W[qs];B[pr])
(;W[sr];B[sq]))
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