invalid problem set
Problem | 1699 |
Created | 2002-11-08 |
Name | Chapter 4 Problem 1 |
Source | James Davies, Tesuji |
Rating | |
Difficulty | 11.4 kyu |
Average Solve Time | 38 secs |
User Attempts |
4024 / 11433 |
Solve Ratio Rating | 5 kyu |
| rating history |
Sometimes it is good to know how to get a KO going, especially if you have enough Ko threats.
Here you may assume, that you have a KO threat at A.
(;
AW[ra][pb][qb][pc][pd][rd][qe][qf][qi]AB[ob][rb][sb][oc][qc][rc][qd][oe][pe]LB[oh:A]PL[W]
(;W[se]LB[oh:A]
;B[od]LB[oh:A]
;W[sc]LB[oh:A]
;B[sd]LB[oh:A]
;W[oh]CR[oh]C[RIGHT White wins the corner if she has enough KO threats])
(;W[sd]LB[oh:A]
;B[re]LB[oh:A]
;W[rf]LB[oh:A]
;B[od]LB[oh:A]
;W[se]LB[oh:A]
;B[pa]LB[oh:A])
(;W[sa]LB[oh:A]CR[sa]
;B[qa]LB[oh:A]CR[qa]
;W[pa]LB[oh:A]CR[pa]
;B[od]LB[oh:A]CR[od]
;W[ra]LB[oh:A]CR[ra]
;B[oa]LB[oh:A]CR[oa])
(;W[sc]LB[oh:A]CR[sc]
;B[sd]LB[oh:A]CR[sd]
;W[re]LB[oh:A]CR[re]
;B[od]LB[oh:A]CR[od]
;W[se]LB[oh:A]CR[se]
;B[pa]LB[oh:A]CR[pa])
(;W[re]LB[oh:A]CR[re]
;B[od]LB[oh:A]CR[od]
;W[sc]LB[oh:A]CR[sc]
;B[sd]LB[oh:A]CR[sd]
;W[se]LB[oh:A]CR[se]
;B[pa]LB[oh:A]CR[pa])))
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