invalid problem set
Problem | 13849 |
Created | 2010-07-22 |
Source | KGS |
Rating | |
Difficulty | 1.1 kyu |
Average Solve Time | 76 secs |
User Attempts |
304 / 848 |
Solve Ratio Rating | 5 kyu |
| rating history |
A nice little situation I spotted. Comments are welcome.
(;AB[rb]AB[qb]AB[pb]AB[pc]AW[ob]AW[oc]AW[pd]AW[pe]AW[pf]AW[oe]AB[qe]AB[qd]AB[qf]AW[qc]AW[rc]AW[qg]AW[rg]AB[pg]AB[ph]AB[qh]AB[rh]AB[pi]C[white to live]AB[nf]AB[md]AB[lc]AB[kd]AP[goproblems]
(;W[rd];B[rf]
(;W[sb]
(;B[ra]C[CHOICE]
(;W[pa];B[re]
(;W[sc]
(;B[sg]C[CHOICE];W[oa];B[se];W[qa];B[sd];W[sa]C[Well done!RIGHT])
(;B[sf];W[oa];B[sd];W[se]C[RIGHT]))
(;W[oa];B[sd])
(;W[sd];B[sg];W[oa];B[se]))
(;W[re];B[sf];W[pa];B[se])
(;W[sc];B[pa];W[re];B[sg];W[oa];B[se]))
(;B[re];W[sc];B[sf];W[ra];B[sd];W[se]C[favourable ko for white.RIGHT]))
(;W[re];B[sf];W[sb];B[se])
(;W[sg]
(;B[sh];W[sb];B[sd]
(;W[se];B[sf]C[Only ko. Thanks BartTM])
(;W[sc];B[re]C[Only ko. Thanks BartTM])
(;W[ra];B[re]))))
(;W[rf];B[rd])
(;W[re];B[rd])
(;W[mb];B[nd];W[rd];B[rf];W[sb];B[od])
(;W[nd];B[ne];W[rd];B[of];W[od];B[rf])
(;W[ne];B[me]
(;W[nd];B[nc])
(;W[nc];B[nd])))
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