invalid problem set
Problem | 441 |
Created | 2001-03-17 |
Source | |
Rating | |
Difficulty | 4.7 dan |
Average Solve Time | 63 secs |
User Attempts |
189 / 2495 |
Solve Ratio Rating | 4 dan |
| rating history |
(;AB[md]AB[nb]AB[nc]AB[ne]AB[ng]AB[oh]AB[pa]AB[ph]AB[qb]AB[qc]AB[qd]AB[qf]AB[qh]AB[re]AB[rf]AB[rg]AB[sf]AW[ic]AW[lc]AW[pb]AW[pc]AW[pd]AW[pe]AW[pf]AW[pg]AW[qe]AW[qg]AW[qj]AW[rd]AW[rh]AW[ri]SZ[19]PL[W]GM[1]FF[4]AP[Hibiscus:2.1]ST[3];W[rc]MN[1];B[rb];W[sd];B[sb]
(;W[ra]
(;B[sc]
(;W[qa]
(;B[se]C[CHOICE]
(;W[na];B[sa];W[qa]
(;B[ra]C[CHOICE]
(;W[ob]
(;B[rd]C[CHOICE];W[mb]C[CHOICERIGHT])
(;B[ma];W[oa];B[mb];W[rd]C[RIGHT]))
(;W[mb];B[ob])
(;W[oa];B[ob];W[qa];B[rd];W[mb];B[pa]C[not a favorable ko for white]))
(;B[ma];W[oa];B[mb];W[rd]C[RIGHT]))
(;W[rd];B[oa])
(;W[oa];B[rd]))
(;B[sa];W[qa];B[se];W[na]
(;B[ra]C[CHOICE]
(;W[ob]
(;B[rd]C[CHOICE];W[mb]C[CHOICERIGHT])
(;B[ma];W[oa];B[mb];W[rd]C[RIGHT]))
(;W[mb];B[ob])
(;W[oa];B[ob];W[qa];B[rd];W[mb];B[pa]C[not a favorable ko for white]))
(;B[ma];W[oa];B[mb];W[rd]C[RIGHT])))
(;W[na];B[qa]))
(;B[qa];W[oa];B[ob];W[sh]C[RIGHT])
(;B[oa];W[qa];B[sa];W[qa];B[ra];W[sh]C[RIGHT]))
(;W[sh];B[sc]))
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