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Referenced by BeginnerExercise47
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Beginner Exercise 47 Solution
Difficulty: Beginner
Keywords: Problem
![[Diagram]](../../diagrams/43/365dcaf87b47471e853697107e40ab85.png) | White first to create a ko. |
splice: creates a ko. Black cannot respond at a because of shortage of liberties. Any response that does not threaten (except b, discussed below) will capture the two black stones at the right in a snapback (White b, Black a, White b).
![[Diagram]](../../diagrams/8/4e73121f557ba28a1d9ae014be800948.png) | Possible |
connects and sets up the ko. Black must take the ko, lose the four stones at the bottom, or connect them and lose the whole group. Ko it is :0
![[Diagram]](../../diagrams/6/7a871fb592edf7490ce05d62874c89cd.png) | Possible too |
Straightforward ko sequence.
har1s?: I don't see any profit for White: Black still creates two eyes anyway?
HolIgor: In the last diagram White threatens to capture four black stones and Black cannot connect. Black cannot capture back because of ko rule. The only solution is to make a large threat elsewhere, which sets up a ko. Black is better off in the second diagram, because White has to look for a ko threat first (try to get first capture in a ko).
This is a copy of the living page
"Beginner Exercise 47 Solution" at
Sensei's Library.
2003 the Authors, published under the OpenContent License V1.0.
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