Xuanxuan Qijing Problem 146 / Solution
Solution
![[Diagram]](../../diagrams/39/36bf9f8abb50b2b692519720900d4030.png)
Solution
kills.
![[Diagram]](../../diagrams/3/4cab3905cfa549e738a68ab988103bd5.png)
Black's resistance
Black has an eye in gote by playing at x.
In a situation like this, Black has 2 choices.
- Secure the gote eye with
at x.
In this case
at r kills.
- Find the moves that if White reponds at x, Black can still make two eyes.
a and b are the only two moves that makes two eyes on the top, so those are what we try for
.
Resistance 'a'
Black can't make two eyes.
Resistance 'b'
After
, there is only a gote eye on the top.
Black r / white s exchange doesn't help.
Failure
![[Diagram]](../../diagrams/28/73ed0ecae0f25cea39c6db38e9381c43.png)
(
can also be at r or s)
![[Diagram]](../../diagrams/52/46ecbcb75efd039e71a35205900e75f1.png)
(
can also be at r)
![[Diagram]](../../diagrams/45/4b7341f95b4768ad9e024ee29e2e27e5.png)
(
can also be at r)
![[Diagram]](../../diagrams/44/c6b314e310e1e18545a50e0bfa59bb80.png)
(
can also be at r)
tenuki.