Beginner Exercise 189 / Solution

Sub-page of BeginnerExercise189

Correct solution:

[Diagram]

Black's alive! :)

If white plays a, black plays b.. And still alive..


Wrong attempts:

[Diagram]

Would be wrong..

a and b are miai.. If black takes one, white plays the other and kills..

[Diagram]

Snapback

The main trap in this problem is that Black cannot play at B1. Because W2 is a snapback, in that if Black plays at a to capture the W2 stone, then White will capture the Black stones by playing at W2 again. Hence, the black+circle stones cannot be saved, and the whole group is dead.


Ohh and why does black need to add a move?

[Diagram]

If black doesn't..

Because white can kill! Black can't play at a! (It'd be self-atari..)


Solution by Reuven.



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