Beginner Exercise 163 / Solution
![[Diagram]](../../diagrams/21/f44f6b567df95b03dcaad48aa2d98c43.png)
Incorrect Solution
kevinwm: This result is wrong. The result should not be a ko.
kevinwm: Here is how to kill unconditionally:
![[Diagram]](../../diagrams/12/33a435bfca8199076dfbbccb684ba220.png)
Solution
kevinwm: Now b has two choices of how to proceed. Both can be killed without ko:
![[Diagram]](../../diagrams/1/1a00c60fec6c767b566d22cfb1266387.png)
Path 1
![[Diagram]](../../diagrams/11/ab8f12812b2e61f16ab7f9c454f3bea6.png)
Solution
kevinwm: a and b are now miai to kill.
White will start off with the wedge.
![[Diagram]](../../diagrams/21/88acd16eed5556503ec0a30b1917e9bc.png)
Incorrect Solution
Black's strongest resistance is at
, anything else dies.
![[Diagram]](../../diagrams/39/431167dcb9b4afe5ca634255bdaef888.png)
Incorrect Solution
The end result is a ko.
![[Diagram]](../../diagrams/18/db3e09166e3ace9d19c2b237a796bf0f.png)
Variation I
If
, then
leaves a and b miai, so there is no eye here.
![[Diagram]](../../diagrams/12/33a435bfca8199076dfbbccb684ba220.png)
Alternative
The alternative solution is
here.
![[Diagram]](../../diagrams/9/65be502d764845adc63f997353284b9a.png)
Alternative
Again
is the only way to live with a ko.
JoelR, unkx80