Beginner Exercise 189 / Solution
Correct solution:
![[Diagram]](../../diagrams/12/463bea0401afb102c53b2267cc42937d.png)
Black's alive! :)
If white plays a, black plays b.. And still alive..
Wrong attempts:
![[Diagram]](../../diagrams/19/8ee17691cf953680a2e4e94011be5a61.png)
Would be wrong..
a and b are miai.. If black takes one, white plays the other and kills..
![[Diagram]](../../diagrams/43/ec9649fe77b93bd2660061a48462ca95.png)
Snapback
The main trap in this problem is that Black cannot play at
. Because
is a snapback, in that if Black plays at a to capture the
stone, then White will capture the Black stones by playing at
again. Hence, the
stones cannot be saved, and the whole group is dead.
Ohh and why does black need to add a move?
![[Diagram]](../../diagrams/37/729e7edb206c1480652eae12ccae3d5a.png)
If black doesn't..
Because white can kill! Black can't play at a! (It'd be self-atari..)
Solution by Reuven.