invalid problem set
Problem | 403 |
Created | 2001-02-17 |
Source | |
Rating | |
Difficulty | 9 dan |
Average Solve Time | 69 secs |
User Attempts |
44 / 2107 |
Solve Ratio Rating | 6 dan |
| rating history |
Warning: Difficult problem!
(;C[Please play the tesuji combination first.FORCE]AB[ib]AB[ic]AB[id]AB[je]AB[lf]AB[mc]AB[md]AB[me]AB[nb]AB[ob]AB[pc]AB[qd]AW[jb]AW[jc]AW[kd]AW[lb]AW[lc]AW[ld]AW[mb]AW[nc]AW[oc]AW[od]AW[of]AW[pe]AW[qf]SZ[19]PL[W]GM[1]FF[4]AP[Hibiscus:2.1]ST[3]
(;W[rd]MN[1];B[rc]
(;W[rb]
(;B[qc];W[re]
(;B[sb]
(;W[ma]
(;B[ka]C[CHOICE];W[ja];B[kb]
(;W[pb];B[qb];W[oa];B[pa];W[na];B[pb];W[ra]C[Well done!Black loses the semeai (capturing race).RIGHT])
(;W[ra];B[pb];W[na];B[oa];W[qa]C[White loses the semeai.]))
(;B[pa];W[ja]C[Best for both.RIGHT]))
(;W[qb];B[pb];W[ra];B[na];W[pa]C[White loses the semeai.])
(;W[ra];B[pb];W[ma];B[ka];W[ja];B[kb];W[na];B[oa];W[qa]C[White loses the semeai.])
(;W[pb];B[qb];W[ma];B[ka];W[ja];B[kb];W[oa];B[pa];W[na];B[pb];W[ra]C[Well done!Black loses the semeai (capturing race).RIGHT]))
(;B[qb];W[sc]
(;B[pa];W[ma];B[ka];W[ja];B[kb];W[na];B[oa];W[sd];B[jd];W[sb];B[ke];W[ra];B[qa];W[qe]C[RIGHT])
(;B[sb];W[sa];B[ra];W[qa];B[pa];W[ma];B[ka];W[ja];B[kb];W[na];B[ra];W[oa];B[pb];W[qa]C[RIGHT])))
(;B[re];W[qb];B[pb];W[qc];B[sd];W[pd];B[sb];W[qe];B[rd];W[ra];B[oa];W[qa]C[RIGHT]))
(;W[re];B[qb]))
(;W[qb];B[pb];W[rc];B[rd])
(;W[rc];B[rd];W[qb];B[pb])
(;W[qc];B[qb];W[rc];B[rd];W[rb];B[ra];W[pd];B[pb]))
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