Beginner Exercise 111 / Solution

Sub-page of BeginnerExercise111

White first

[Diagram]

White first

White 1 will simply kill Black by a squared four.

[Diagram]

White failure 1

If White 1, then Black 2 lives with bent four.

[Diagram]

White failure 2

After Black 2 atari, White found that playing at a is suicide, so it is not possible to almost fill the eye space into a bulky five.


Black first

[Diagram]

Black first

Black first will play 1 and 3. This results in the same diagram as White's second failure diagram, in which Black lives.

If White 2 is played at 3, then Black can even play tenuki.

[Diagram]

Black failure 1

If Black atari at 1, then White 2 kills Black in a bulky five.


Conclusion

This group is unsettled. If White first, the group is killed; if Black first, the group lives.



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